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Summary for Tropical Storm Gamma (AT5/AL252020)
2020-10-04 19:44:47| National Hurricane Center (Atlantic)
...GAMMA MEANDERING JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN PENINSULA... As of 1:00 PM CDT Sun Oct 4 the center of Gamma was located near 22.4, -88.0 with movement N at 2 mph. The minimum central pressure was 997 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Gamma Public Advisory Number 9A
2020-10-04 19:44:47| National Hurricane Center (Atlantic)
Issued at 100 PM CDT Sun Oct 04 2020 000 WTNT35 KNHC 041744 TCPAT5 BULLETIN Tropical Storm Gamma Intermediate Advisory Number 9A NWS National Hurricane Center Miami FL AL252020 100 PM CDT Sun Oct 04 2020 ...GAMMA MEANDERING JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN PENINSULA... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...22.4N 88.0W ABOUT 60 MI...90 KM NNE OF RIO LAGARTOS MEXICO ABOUT 120 MI...190 KM NE OF PROGRESO MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...N OR 005 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * North and west of Cancun to Dzilam Mexico A Tropical Storm Watch is in effect for... * West of Dzilam to Progreso Mexico A Tropical Storm Warning means that tropical storm conditions are occurring somewhere within the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 PM CDT (1800 UTC), the center of Tropical Storm Gamma was located near latitude 22.4 North, longitude 88.0 West. Gamma is moving toward the north near 2 mph (4 km/h), and this general motion with a further decrease in forward speed is expected today. Gamma should turn toward the west or west-southwest tonight or Monday, and a slow southwestward motion should continue Monday night through early Wednesday. On the forecast track, the center of Gamma will meander offshore of the northern Yucatan Peninsula and over the extreme southern Gulf of Mexico today, and pass near or just offshore of the northern coast of the Yucatan Peninsula on Monday and Tuesday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Little change in strength is expected through this evening. Gradual weakening is anticipated to begin later tonight or on Monday and continue into Tuesday. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure based on data from an Air Force Reserve reconnaissance aircraft is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Gamma can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml. RAINFALL: Gamma is expected to produce an additional 2 to 4 inches with isolated maximum amounts of 6 inches across portions of northern Yucatan and far western Cuba through early Tuesday. This rainfall may prolong or enhance any ongoing flash flooding. Through the middle of the week, a separate area of significant rain is possible in the Mexican states of Campeche, Tabasco, and southeast Veracruz, with rainfall of 4 to 6 inches and isolated maximum amounts of 8 inches. This rainfall may produce life-threatening flash floods and mudslides. Another remote area of heavy rain associated with Gamma is expected to bring additional accumulations of 1 to 3 inches and isolated maximum amounts of 5 inches in southern Guatemala towards the Gulf of Fonseca region between eastern El Salvador, southern Honduras, and northwest Nicaragua. WIND: Tropical storm conditions should continue within portions of the Tropical Storm Warning area on northern coast of the Yucatan through today. Tropical Storm conditions are possible within the Tropical Storm Watch area later today through Monday. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Brown
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Atlantic Tropical Weather Outlook
2020-10-04 19:43:16| National Hurricane Center (Atlantic)
000 ABNT20 KNHC 041743 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Sun Oct 4 2020 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Storm Gamma, located just north of the Yucatan Peninsula over the extreme southern Gulf of Mexico. A broad area of low pressure is located over the central Caribbean Sea, a little less than 100 miles south-southeast of eastern Jamaica. Recent satellite wind data and visible satellite imagery indicate that the circulation is gradually becoming better defined, however, the associated shower and thunderstorm activity has changed little in organization since this morning. Environmental conditions are expected to be conducive for additional development, and a tropical depression is likely to form within the next day or so, while the system moves over the central and northwestern Caribbean Sea. The disturbance is forecast to move near Jamaica through Monday, and then pass near the Cayman Islands early Tuesday and approach western Cuba by late Tuesday, and interests in those areas should closely monitor the progress of this system. The low is forecast to move into the southern or southeastern Gulf of Mexico Tuesday night or Wednesday. Regardless of development, locally heavy rainfall and gusty winds will be possible across portions of Hispaniola, Jamaica, the Cayman Islands, and Cuba during the next few days. This rainfall could lead to life-threatening flash floods and mudslides. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high...80 percent. Showers and thunderstorms associated with a tropical wave over the central tropical Atlantic have become limited today. The system is moving into an area of strong upper-level winds and development of this system is not anticipated. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...near 0 percent. An area of disorganized showers and thunderstorms over the central Atlantic about 1000 miles east-southeast of Bermuda is associated with a surface trough of low pressure. This system is expected to move toward the west-southwest at around 10 mph, and some slow development is possible during the next couple of days before it encounters strong upper-level winds. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...10 percent. $$ Forecaster Brown
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Eastern North Pacific Tropical Weather Outlook
2020-10-04 19:39:16| National Hurricane Center (East Pacific)
000 ABPZ20 KNHC 041739 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Sun Oct 4 2020 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Hurricane Marie, located in the western region of the basin. Showers and thunderstorms have changed little since yesterday in association with an elongated area of low pressure located several hundred miles south of the southwestern coast of Mexico. Environmental conditions appear conducive for additional development, and a tropical depression could still form during the next few days while it moves slowly northwestward. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...60 percent. An area of low pressure could form south-southeast of the Gulf of Tehuantepec early next week. Thereafter, development, if any, should be slow to occur while it drifts northward offshore of the coasts of Mexico and Guatemala. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...10 percent. $$ Forecaster Roberts
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Tropical Storm Gamma Graphics
2020-10-04 16:45:27| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sun, 04 Oct 2020 14:45:27 GMT Wind Speed Probabilities last updated Sun, 04 Oct 2020 14:45:27 GMT
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