New tropical cyclone position and forecast information is available at least every twelve hours in the Southern Hemisphere and at least every six hours in the Northern Hemisphere from Regional Specialized Meteorological Centers and Tropical Cyclone Warning Centers. If sustained winds 70 km/h and/or gusts 90 km/h or stronger are predicted, a conventional wind warning will be issued along with the tropical cyclone watches and warnings. The Australian Bureau of Meteorology will issue a cyclone watch for a specified part of Australia, when a tropical cyclone is expected to cause gale-force winds in excess of 62 km/h (40 mph) within 24–48 hours and subsequently make landfall. The lead time is also only valid for the first issuance. [12], In Canada, terminology is fairly similar to that of the United States, but there are a few differences:[13]. [8] The warning is issued just prior to when the strongest winds of the eyewall are expected to impact an area. Tropical cyclones may affect the area within 48 hours. Thus, warnings may be discontinued even if a cyclone is maintaining tropical storm intensity inland. National Oceanic and Atmospheric Administration. Implication for citizens: usually no need to go to school or work for most people if hosted before a certain hours before official work hours; depends on official announcement & employment contracts. Windproof Info (Tropical Storm or Typhoon Info). Tropical storm warning. Belinda Pheto Reporter. The scale tops off with a red alert, the maximum level of danger. A tropical storm warning was issued Monday for the tri-state area as Tropical Storm Isaias is forecast to gain near hurricane strength on its track toward the Carolinas – … NWS offices in Jackson and New Orleans/Baton Rouge issued 11 tornado warnings for areas that would not experience an actual tornado, but would experience extreme wind speeds commonly associated with tornadoes. The winds represented by each color are consistent with the typhoon warning signal. 18 January 2021 - 15:23 . expected somewhere within the warning, in this case within the next. Stage 2: Cyclone alert - Issued 48 hours in advance of the commencement of adverse weather over the coastal areas. [7] At times a tropical storm warning and a hurricane watch can both be in effect due to uncertainties in the forecast. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 36 hours. In US maritime … A Storm Surge Warning … indicates that a tropical storm or typhoon has landed (or weakened to a low pressure). TCWS #5 - Tropical cyclone winds greater than 220 km/h are prevailing or expected within 12 hours. Listen closely to instructions from local officials on TV, radio, cell phones or other computers for instructions from local officials. The average wind power on the coast or land is above 6, or the gust above 8 and may continue. Tropical storm warning - but it's too early to say if it will hit SA. A two-stage warning system was long-established in China for tropical cyclones of tropical storm intensity of above. It has the responsibility for weather forecasting, tropical cyclone naming and distribution of warnings for tropical cyclones in the Northwestern Pacific region. Tropical cyclones will be within 12 hours or are affecting the area, with an average winds level of strong gale (8-9) (63-87 km/h). Questions? These storm signals are usually hoisted when an area (in the Philippines only) is about to be hit by a tropical cyclone. Extreme Wind Warning: Extreme sustained winds of a major hurricane (115 mph or greater), usually associated with the eyewall, are expected to begin within an hour. A Tropical Storm Warning means that tropical storm conditions are. These storms are called “post-tropical cyclones” by the NWS. National Weather Service You can find these products on www.hurricanes.gov for the Atlantic and eastern North Pacific or www.weather.gov/cphc for the Central Pacific; on TV, radio, and cell phones; and NOAA Weather Radio. A tropical storm warning was issued for Marion and surrounding counties at 4 a.m. Wednesday. Stage 3: Cyclone warning - Issued 24 hours in advance of the commencement of adverse weather over the coastal areas. They are notices to the local population and civil authorities to make appropriate preparation for the cyclone, including evacuation of vulnerable areas where necessary. This graphic shows an approximate representation of coastal areas under a hurricane warning (red), hurricane watch (pink), tropical storm warning (blue) and tropical storm watch (yellow). These watches would be upgraded to storm surge warnings when there is a danger of life-threatening storm surge occurring within 36 hours. Implication for citizens: no need to go to work or school. [30] An area having a storm signal may be under: The given lead time may be shortened based on the tropical cyclone's position. Please Contact Us. TCWS #1 - Tropical cyclone winds of 30–60 km/h are prevailing or expected within the next 36 hours. Strong wind with a sustained speed of 41–62 km/h, sustained speed of 63–117 km/h from the northwest, southwest, northeast, southeast quadrants respectively. Interests in Cuba and the remainder of the Bahamas should monitor Please note that hurricane and tropical storm watches and warnings for winds on land as well as storm surge watches and warnings can be issued for storms that the NWS believes will become tropical cyclones but have not yet attained all of the characteristics of a tropical cyclone (i.e., a closed low-level circulation, sustained thunderstorm activity, etc.). [15] This set is part of a larger warning system that covers other forms of severe weather conditions, such as extreme temperature, torrential rainfall, drought, etc. Safety1325 East West HighwaySilver Spring, MD 20910Comments? Stage 1: Cyclone watch - Issued 72 hours in advance, it discusses the likelihood of development of a cyclonic disturbance in the north Indian Ocean and the coastal region likely to experience adverse weather. [31], The Fiji Meteorological Service (FMS) issues a tropical cyclone alert for the Cook Islands, Fiji, Kiribati, Nauru, Niue, Tokelau and Tuvalu, when a tropical cyclone has a significant probability of causing gale-force winds or stronger winds within 24–48 hours. The Macao Meteorological and Geophysical Bureau in Macau uses a similar system.[25]. Listen closely to instructions from local officials on TV, radio, cell phones or other computers for instructions from local officials. The Atlantic hurricane season runs from June 1st through November 30th. Color-coded alerts (below) may be in effect independently of any two-stage warnings. Tropical Storm Warning Issued In Florida Ahead Of Laura - Miami, FL - A tropical storm warning was issued in Florida as Laura pushed toward the Sunshine State. For more details on all NHC products, see the  National Hurricane Center Product User's Guide. Tropical Storm Warning Issued for Brevard County as Eta Makes Landfall on Cuba By Space Coast Daily // November 7, 2020 Eta is currently carrying 65 mph max sustained winds A Flash Flood Watch is in effect for the mountains, Burke and Caldwell and a Wind Advisory for our eastern counties. Météo-France in Réunion (MFR/RSMC La Reunion) is responsible for the issuing advisories and tracking of tropical cyclones in the southwest part of the basin, however, the naming of systems is deferred to the Mauritius and Madagascar weather services. + Advisories Tropical Cyclone Public Advisory: The Tropical Cyclone Public Advisory contains a list of all current coastal watches and warnings associated with an ongoing or potential tropical cyclone, a post-tropical cyclone, or a subtropical cyclone. Tropical cyclones will be within 24 hours or are affecting the area, with an average wind level of strong winds (6-7) (41-62 km/h). Whenever a tropical cyclone (a tropical depression, tropical storm, or hurricane) or a subtropical storm has formed in the Atlantic or eastern North Pacific, the NOAA National Hurricane Center (NHC) issues tropical cyclone advisory products at least every 6 hours at 5 am, 11 am, 5 pm, and 11 pm EDT. Storm information and forecasts specific to your local area can be found from you local Weather Forecast Office (WFO) through www.weather.gov. The Outlook includes a categorical forecast of the probability of tropical cyclone formation during the first 48 hours and during the entire 5-day forecast period. Later, China Meteorological Administration standardized the system for national use. The Indian Meteorological Department (IMD/RSMC New Delhi) is responsible for tracking tropical cyclones within the North Indian Ocean. National Hurricane Center Product User's Guide. Tropical Storm Eloise triggers severe weather warning for South Africa. [34], The alerts are recommended by weather facilities either on base or by central sites like the National Hurricane Center or the Joint Typhoon Warning Center and are generally related to the timing and potential for destructive sustained windspeeds of above 50 kn (58 mph; 93 km/h). The public TSR web site provides forecasts and information to benefit basic risk awareness and decision making from tropical storms. [34], Sudden meteorological disaster warning signal (China), Sudden meteorological disaster warning signal (Guangdong), Hong Kong tropical cyclone warning signals, Macao Meteorological and Geophysical Bureau, Regional Specialized Meteorological Centers, Philippine Atmospheric, Geophysical and Astronomical Services Administration, Severe weather terminology (disambiguation), "Regional Specialized Meteorological Center", "National Hurricane Center Product Description Document: A User's Guide to Hurricane Products", "Notes on RSMC Tropical Cyclone Information", "Product Description Document: Extreme Wind Warning (EWW)", "Service Assessment. The coastal ports of various cities in mainland China will still hang the squash signal when the typhoon hits. The Hong Kong Observatory issues typhoon signals to indicate the existence and effects of a tropical cyclone on Hong Kong. Thus, as a tropical cyclone gains strength and/or gets closer to an area having a storm signal, it may be raised to another higher signal in that particular area. It may be affected by tropical cyclones within 24 hours, the average wind power can reach above level 6, or gusts above 7; or it has been affected by tropical cyclones with an average wind power of 6–7, or gusts of 7–8, and may continue. TCWS #2 - Tropical cyclone winds of 61–120 km/h are prevailing or expected within the next 24 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. The first numeric warning system was used in 1917. [7], Because hurricane preparedness activities become difficult once winds reach tropical storm force, the hurricane watch and warnings are issued in advance of the anticipated onset of tropical-storm-force winds, rather than in advance of the anticipated onset of hurricane-force winds. Indicating that a tropical storm or typhoon hits the Pearl River Estuary within 24 hours, or landed in a coastal area within 150 kilometers of the Pearl River Estuary, which will have a serious impact on Guangzhou. Traduzioni in contesto per "Tropical storm warnings" in inglese-italiano da Reverso Context: ANNOUNCER ON RADIO: Tropical storm warnings are now in effect for all of the Gulf Coast. Evacuate if told to do so. (Hong Kong) Gale or storm force wind is increasing or expected to increase significantly in strength. TCWS #4 - Tropical cyclone winds of 171–220 km/h are prevailing or expected within 12 hours. In these cases, the forecast conditions on land warrant alerting the public. If there is no change, it may land within 48 hours. [32], Météo-France is responsible for the issuance of tropical cyclone watches and warnings for New Caledonia, Wallis and Futuna, French Polynesia and the Pitcairn Islands. News Release, Calvert County Public Information Office PRINCE FREDERICK, Md. Day signals are also used as signal symbols in both places. Indicating that a tropical storm or typhoon warning enters the South China Sea, its route is moving in the direction of the Pearl River Estuary. Tropical cyclones are not points, and forecasting their track remains an uncertain science. Nowadays, the use of this system is restricted to coastal waters only. (CMR) The Cayman Islands is now under a Tropical Storm Warning as we are expected to have tropical storm conditions beginning late on Monday with the onset of Tropical Storm force winds is expected from 3 pm tomorrow with conditions expected to deteriorate around 1 pm with winds about 40 mph after 6 pm. The average wind power on the coast or land is above 8, or the gust above 10 and may continue. [34] The bases prefer to set these alerts sequentially, from HURCON or TCCOR 5 with destructive winds expected within 96 hours, through levels 4, 3, 2 and if needed to a series of four different level 1 conditions, however depending on the cyclone's movement or location some of these signals can be skipped. The scale starts with blue at the bottom being minimal danger, then proceeds to a green alert, which means low level danger. Hurricane Zeta is thrashing the coast of Louisiana and Mississippi this evening. / (Macau) The centre of a tropical cyclone is approaching and Macau is expected to be severely affected. 185 notes It may be affected by tropical cyclones within 6 hours, the average wind power can reach above level 12; or it has been affected by tropical cyclones with an average wind power of 12, and may continue. If the winds are associated with a tropical cyclone, a tropical storm warning will be substituted for the storm warning and less severe gale warning. It is important that interests throughout the area of an alert make preparations to protect life and property, and do not disregard it on the strength of the detailed forecast track. [7] Hurricane watches are issued when sustained winds of 64 knots (74 mph; 119 km/h) are possible, within 48 hours in a specified area in association with a tropical, subtropical or post-tropical cyclone. In 2017, the National Hurricane Center introduced a new system of warnings and watches for storm surge, which would cover the Atlantic and Gulf Coasts of the United States. The center of circulation is … A tropical storm warning remains in place for the Sister Islands. CHARLOTTE, N.C. (WBTV) - A Tropical Storm Warning is in effect for much of the WBTV viewing area. In conjunction with the National Hurricane Center, the national meteorological and hydrological services of Central America, the northern Atlantic Ocean, and the northeastern Pacific Ocean east of the 140th meridian west, excluding mainland Africa and Europe, all issue tropical storm/hurricane watches and warnings. In some inland areas that are less affected by tropical cyclones (such as Qinghai, etc. (Standby) A tropical cyclone is centred within 800 km of the territory. Tornado [edit | edit source] Tropical Cyclones Can Produce a Tornado by Severe Thunderstorms Emended in rain bands. The winds must not be associated with a tropical cyclone. [7] These watches are upgraded to tropical storm warnings, when gale and storm force winds become expected to occur somewhere in the warning area within 36 hours. When coastal tropical storm or hurricane watches or warnings are in effect, the NHC and CPHC issue Tropical Cyclone Public advisories every 3 hours. possible within the watch area, generally within 48 hours. Tropical storm warning issued for Bermuda as Epsilon approaches - National | Globalnews.ca The Category 3 storm is packing top sustained winds of 115 mph (185 kph) and … However, both watches and warnings may be issued earlier than specified if environmental conditions are expected to hamper preparations. A yellow alert signifies moderate danger, followed by an orange alert that means high danger level. Most public transportation stop. There are no tropical cyclones in the Atlantic at this time. A storm surge watch would be issued when a life-threatening storm surge, associated with a potential or ongoing tropical, subtropical or post-tropical cyclone, is possible within the next 48 hours. lmao hurricane irma hurricane season tis the season hurricanes irma jose trump donald trump tropical storm tropical storm jose expected warning watch weather soflo south florida we fucked fml. [11], In Mexico, a color coded alert system is used to keep the public informed when a tropical cyclone or possible tropical cyclones poses a threat to the nation. [7] These watches are upgraded to hurricane warnings, when hurricane-force winds become expected to occur somewhere in the warning area within 36 hours. By Jehran Naidoo Jan 19, 2021 Disarming (Tropical Storm or Typhoon Disarming Alert). Color-coded alerts (below) may be in effect independently of any two-stage warnings. It may be affected by tropical cyclones within 24 hours, the average wind power can reach above level 8, or gusts above 9; or it has been affected by tropical cyclones with an average wind power of 8–9, or gusts of 9-10, and may continue. US Dept of Commerce Tropical cyclone warnings and watches are alerts issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. [26][27] Each signal has a day signal and a night signal for hoisting, which are still hoisted in Macau but no longer hoisted in Hong Kong. A tropical storm warning is in effect from the Jupiter Inlet to Bonita Springs. Tropical Storm Watch: Tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the specified area within 48 hours. Guangdong continued to set up the White typhoon alert for typhoon, indicating that tropical cyclones may affect the area within 48 hours. A Tropical Storm Warning that was in effect for the Palm Beaches and Treasure Coast has been discontinued. It normally gives 12 hours warning of strong winds generally over Hong Kong at sea level, but in exposed areas, winds may become strong sooner. At sea, a storm warning is a warning issued by the National Weather Service of the United States when winds between 48 knots and 63 knots are occurring or predicted to occur soon. A Tropical Storm Warning S.A.M.E code: TRW is a warning issued by the National weather Service that a Approaching Cyclone with winds of 39 - 73 Miles Per Hour is about to make landfall in 36 hours or less. Within the United States an extreme wind warning is issued by the National Weather Service for any land areas that are expected to be impacted by a major (Category 3 or higher) hurricane and by sustained surface winds greater than or equal to 100 knots (115 mph; 185 km/h). It usually implies that wind speeds are expected to reach the range 88 to 117 kilometres per hour. Stage 4: Landfall outlook - Issued 12 hours in advance of the commencement of adverse weather over the coastal areas. For the product examples such as the ones listed under this same tab, see out National Hurricane Product site. A Tropical Storm Watch means that tropical storm conditions are. The location of landfall is discussed at this stage. National Hurricane Center Home Page. The orange circle indicates the current position of the center of the tropical cyclone. The Japan Meteorological Agency (JMA) is the government agency responsible for gathering and providing results for the public in Japan, that are obtained from data based on daily scientific observation and research into natural phenomena in the fields of meteorology, hydrology, seismology and volcanology, among other related scientific fields. Hurricane Katrina: August 23–31, 2005", Storm surge watch & warning to become operational in 2017, "Be Prepared for Hurricane Season in Cancun", https://www.canada.ca/en/environment-climate-change/services/types-weather-forecasts-use/public/criteria-alerts.html, "Meaning of Tropical Cyclone Signals and the relevant recommended safety precautions", "Tropical Cyclone Warning Signal No.5 in the Past", "History of the Hong Kong Tropical Cyclone Warning Signals", "The Philippines modified its Tropical Cyclone Warning System", "Philippine Tropical Cyclone Warning Signals", Tropical Cyclone Operational Plan for the South-East Indian Ocean and the Southern Pacific Ocean 2012, "Tropical Cyclone Quick Reference Guide 2013", https://en.wikipedia.org/w/index.php?title=Tropical_cyclone_warnings_and_watches&oldid=990953284, Creative Commons Attribution-ShareAlike License. JMA is also designated one of the Regional Specialized Meteorological Centers (RSMC) of the World Meteorological Organization. November 7, 2020, 10:04 AM MIAMI-DADE COUNTY, FL — A tropical storm warning is in effect for portions of southeastern Florida as Tropical Storm Eta … [9] It was developed in response to confusion resulting from the landfall of Hurricane Katrina. 10/29/2020 (FOX 5 STORM TEAM) As of a.m. Thursday, Tropical Storm Zeta continues to move through Georgia and North Carolina. You can also find graphical versions of the 2-day and 5-day Outlook at www.hurricanes.gov and www.weather.gov/cphc. [14] Nowadays, the use of this system is restricted to coastal waters only. The Pearl River Delta uses a variety of warning systems to inform the public regarding the risks of tropical cyclones to the area. In Hong Kong the typhoon signal system consists of 8 signals in 5 levels numbered non-consecutively for historical reasons. A tropical storm warning means tropical storm force winds — 39 to 73 mph —are possible in an area within the next 24 hours. – Aug. 3, 2020 – As Tropical Storm Isaias approaches the Mid-Atlantic, the Calvert County Department of Public Safety advises citizens that a tropical storm warning has been issued by the National Weather Service for Calvert County. [23] The sign is roughly the same as the typhoon signal used in Shenzhen and Zhuhai.[24]. The tropical storm warning for South Florida and the Treasure Coast were canceled Monday as Tropical Storm Eta moves into the Gulf of Mexico. It may be affected by tropical cyclones within 12 hours, the average wind power can reach above level 10, or gusts above 11; or it has been affected by tropical cyclones with an average wind power of 10–11, or gusts of 11–12, and may continue. Take immediate shelter in the interior portion of a well-built structure. [31] A cyclone warning is subsequently issued for a specified part of Australia when a tropical cyclone, is expected to cause or is causing gale-force winds in excess of 62 km/h (40 mph) within 24 hours and is subsequently expected to make landfall. A storm surge warning may be issued if abnormally high water levels are predicted. [10] The extreme wind warning is now expected to be used in these situations. Meteorological Applications, 24, No.1, 1-8. [34][35] After a system passes and stops affecting the base, the authorities can decide to revert to the lowest level or stay in a heightened approach if another tropical cyclone is approaching. Tropical cyclone tracking and verification techniques for Met Office numerical weather prediction models. Shenzhen and Zhuhai used digitally arranged typhoon signals from June 4, 1994 to November 1, 2000,[22] but they have now been replaced by typhoon warning signals. Milford Mayor Ben Blake has sent out a an alert through the citywide notification system. Within 12 hours, it may or may have been affected by tropical cyclones. Within 24 hours, it may or may have been affected by tropical cyclones. Tropical Weather Outlook: The Tropical Weather Outlook is a discussion of significant areas of disturbed weather and their potential for development during the next 5 days. The method used to track tropical cyclones and verify forecasts in Met Office models is available in this publication: Heming, J.T., 2017. TCWS #3 - Tropical cyclone winds of 121–170 km/h are prevailing or expected within the next 18 hours. [33], The United States Department of Defense uses a multi-stage system called the Hurricane Condition (HURCON) in the North Atlantic and the Northeast Pacific and the Tropical Cyclone Condition of Readiness (TCCOR) in the western Pacific to prepare bases and evacuate assets and personnel in advance of adverse weather associated with tropical cyclones. Tropical storm warning - but it's too early to say if it will hit SA. [1][2][3][4][5] Thus, warnings may be discontinued even if a cyclone is maintaining tropical storm intensity inland. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) releases tropical cyclone warnings in the form of Tropical Cyclone Wind Signals (or just storm signals). The IMD issues warnings in four stages for the Indian coast. [34] Recommendations are then considered by base or area commanders along with other subjective factors for setting the alert status like assets, holidays or the bases experience in emergency preparedness. 4 different symbols for different directions. Windproof Warning (Tropical Storm and Typhoon Warning). The track of the cyclone after the landfall and the possible impact inland is discussed at this stage. Tropical cyclone tracking technique. 12 to 24 hours. Implication for citizens: Do not need to go to kindergartens, some places and events. Similarly, the Central Pacific Hurricane Center (CPHC) issues tropical cyclone advisory products for the central North Pacific at least every 6 hours at 5 am, 11 am, 5 pm, and 11 pm HST. Its headquarters is located in Tokyo. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. [32] The National Meteorological and Hydrological Services of the Solomon Islands, Samoa, Indonesia, Papua New Guinea, Tonga, New Zealand, Vanuatu, Timor Leste and American Samoa are responsible for their own watches and warnings.[32]. The average wind power on the coast or land is above 10, or the gust above 12 and may continue. Whereas, as a tropical cyclone weakens and/or gets farther away from an area, it may be downgraded to a lower signal or may be lifted (that is, an area will have no storm signal). Tropical cyclones will be within 12 hours or are affecting the area, with an average winds level of. Cyclonic storm conditions mean what winds in excess of 63 km/h (39 mph) are possible. All NOAA. Tropical storm-force winds of 35-40 mph with gusts up […] NWS Tropical cyclones will be within 12 hours or are affecting the area, with an average winds level of strong storm (10-11) (88-117 km/h). Information on NWS tropical cyclone watch, warning, advisory, and outlook products is detailed below. Watches are issued 36 hours prior to a tropical cyclone making landfall. winds range upwards from 118 kilometres per hour. The seventh tropical depression, fifth named storm, and third severe tropical storm of the 2020–21 South-West Indian Ocean cyclone season, it developed into a tropical depression on 16 January, and strengthened into a tropical storm on 17 January, though the storm had limited outflow. Within 6 hours, it may or may have been affected by tropical cyclones. A definite warning that a tropical cyclone is expected to come near enough to Hong Kong to cause strong winds in Hong Kong. Warnings are issued 24 hours prior to the tropical cyclone making landfall. [9] The warning is to be issued for the smallest area possible, and be valid for times of two hours or less. A two-stage warning system was long-established in China for tropical cyclones of tropical storm intensity of above. The average wind power on the coast or land is above 12, or the gust above 14 and may continue. indicates that a tropical storm or typhoon has entered the South China Sea (or has formed in the South China Sea) and is likely to move to the coastal areas of the province. Tropical Storm Warning A Tropical Storm Warning is issued when sustained winds of 34 to 63 kt (39 to 73 mph) or higher associated with a tropical cyclone are expected in 36 hours or less. Windproof Special Alert (Tropical Storm or Typhoon Emergency Alert). ), there is no typhoon warning signal, but when it is hit by tropical cyclones, a strong wind warning signal will be issued. National Oceanic and Atmospheric Administration Tropical Storm Risk (TSR) offers a leading resource for predicting and mapping tropical storm activity worldwide. [32] Gale, storm and hurricane-force wind warnings are subsequently issued for the above areas by FMS, when a tropical cyclone is either causing or expected to cause either gale storm or hurricane-force winds within 24 hours. July 10, 2020 Updated: July 10, 2020 12:46 p.m. Facebook Twitter Email. Typhoon warning signals used in Guangzhou from June 1, 1995 to November 1, 2000:[16], Typhoon warning signals used from November 1, 2000 to May 2006[17]：, Typhoon warning signals used from June 1, 2006 to December 31, 2014:[18], Typhoon warning signals used since January 1, 2015:[19], Shenzhen currently uses a different signal from Guangdong Province:[18][20], Zhuhai adopts the signal style of Guangdong Province, but the meaning of the signal is different:[21]. Tropical Storm Hanna has formed in the western Gulf of Mexico and is tracking westward toward the Texas Coast where it will move inland Saturday. These watches and warnings are also issued by the Central Pacific Hurricane Center for the Hawaiian Islands and the Weather Forecast Office in Guam for parts of Micronesia but not for American Samoa due to an international agreement.[8]. [6] Tropical storm watches are issued when gale and storm force winds of between 34 and 63 knots (39–73 mph; 63–118 km/h) are possible, within 48 hours in a specified area in association with a tropical, subtropical or post-tropical cyclone. These storms are referred to as “potential tropical cyclones” by the NWS. Within 24 hours, it may or may have been affected by tropical cyclones.