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Hurricane GASTON Graphics
2016-09-01 13:36:54| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Thu, 01 Sep 2016 11:36:54 GMT Wind Speed Probabilities last updated Thu, 01 Sep 2016 09:07:37 GMT
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Summary for Hurricane GASTON (AT2/AL072016)
2016-09-01 13:36:32| National Hurricane Center (Atlantic)
...GASTON SLOWLY WEAKENING WHILE IT MOVES TOWARDS THE WESTERN AZORES... As of 8:00 AM AST Thu Sep 1 the center of GASTON was located near 37.2, -41.9 with movement ENE at 26 mph. The minimum central pressure was 981 mb with maximum sustained winds of about 85 mph.
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Hurricane GASTON Public Advisory Number 39A
2016-09-01 13:36:32| National Hurricane Center (Atlantic)
Issued at 800 AM AST THU SEP 01 2016 000 WTNT32 KNHC 011136 TCPAT2 BULLETIN HURRICANE GASTON INTERMEDIATE ADVISORY NUMBER 39A NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 800 AM AST THU SEP 01 2016 ...GASTON SLOWLY WEAKENING WHILE IT MOVES TOWARDS THE WESTERN AZORES... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...37.2N 41.9W ABOUT 725 MI...1170 KM W OF FAIAL ISLAND IN THE CENTRAL AZORES ABOUT 810 MI...1310 KM W OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...ENE OR 65 DEGREES AT 26 MPH...43 KM/H MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Flores and Corvo in the western Azores A Tropical Storm Watch is in effect for... * Faial, Pico, Graciosa, Sao Jorge, and Terceira in the central Azores A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM AST (1200 UTC), the center of Hurricane Gaston was located near latitude 37.2 North, longitude 41.9 West. Gaston is moving toward the east-northeast near 26 mph (43 km/h), and this general motion is expected to continue during the next day or two. On the forecast track, the center of Gaston will move near the western Azores on Friday and the central Azores by Friday night. Maximum sustained winds have decreased to near 85 mph (140 km/h) with higher gusts. Additional weakening is forecast during the next 48 hours, and Gaston is expected to become a tropical storm by early Friday before it reaches the western Azores. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 981 mb (28.97 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected in the western Azores on Friday. Tropical storm conditions are possible in the central Azores late Friday and Friday night. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Brennan
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Hurricane GASTON Graphics
2016-09-01 10:57:10| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Thu, 01 Sep 2016 08:57:05 GMT Wind Speed Probabilities last updated Thu, 01 Sep 2016 08:56:32 GMT
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Hurricane GASTON Forecast Discussion Number 39
2016-09-01 10:56:42| National Hurricane Center (Atlantic)
Issued at 500 AM AST THU SEP 01 2016 000 WTNT42 KNHC 010856 TCDAT2 HURRICANE GASTON DISCUSSION NUMBER 39 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016 500 AM AST THU SEP 01 2016 Gaston has weakened a little overnight. The cloud pattern has lost some organization with the convection more asymmetric and not quite as deep as it was several hours ago. The Dvorak CI-numbers have decreased to 4.5/77 kt from both TAFB and SAB, and the initial wind speed is lowered to 80 kt based on that data. Gaston is expected to cross the 26 deg C isotherm later today while it remains in an environment of moderate southwesterly shear. These conditions should cause steady weakening, and Gaston will likely fall below hurricane strength by tonight. Continued weakening is forecast when the cyclone moves near the Azores on Friday. The NHC intensity forecast is in best agreement with the intensity model consensus. The hurricane is moving quickly east-northeastward about 17 kt. This general motion is expected to continue during the next day while Gaston remains embedded in the mid-latitude westerlies. A decrease in forward speed is predicted after that time due to the approach of a large extratropical low. Gaston will likely be absorbed by the extratropical low in about 3 days. The NHC track forecast lies near the middle of the tightly-packed models. Based on the current forecast, the Azores Meteorological Service has issued a Tropical Storm Warning for the western-most islands of Flores and Corvo. FORECAST POSITIONS AND MAX WINDS INIT 01/0900Z 36.8N 43.3W 80 KT 90 MPH 12H 01/1800Z 37.9N 39.9W 70 KT 80 MPH 24H 02/0600Z 38.7N 35.4W 60 KT 70 MPH 36H 02/1800Z 39.2N 31.8W 50 KT 60 MPH 48H 03/0600Z 40.0N 29.0W 40 KT 45 MPH 72H 04/0600Z...DISSIPATED $$ Forecaster Cangialosi
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