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Tropical Storm Teddy Public Advisory Number 13
2020-09-15 22:38:12| National Hurricane Center (Atlantic)
Issued at 500 PM AST Tue Sep 15 2020 000 WTNT35 KNHC 152038 TCPAT5 BULLETIN Tropical Storm Teddy Advisory Number 13 NWS National Hurricane Center Miami FL AL202020 500 PM AST Tue Sep 15 2020 ...STEADY TEDDY EXPECTED TO TURN NORTHWESTWARD AND STRENGTHEN TONIGHT... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...14.6N 47.9W ABOUT 895 MI...1440 KM E OF THE LESSER ANTILLES MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Teddy was located near latitude 14.6 North, longitude 47.9 West. Teddy is moving toward the west-northwest near 13 mph (20 km/h). A steady northwest motion at 10 to 15 mph is expected through the end of the week. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast, and Teddy could become a hurricane tonight. Teddy is forecast to be near major hurricane strength within a few days. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center. The estimated minimum central pressure is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Large swells generated by Tropical Storm Teddy are expected to reach the Lesser Antilles and the northeastern coast of South America on Wednesday. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Zelinsky
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Tropical Storm Teddy Forecast Advisory Number 13
2020-09-15 22:37:42| National Hurricane Center (Atlantic)
Issued at 2100 UTC TUE SEP 15 2020 000 WTNT25 KNHC 152037 TCMAT5 TROPICAL STORM TEDDY FORECAST/ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL AL202020 2100 UTC TUE SEP 15 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 14.6N 47.9W AT 15/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 30NE 0SE 0SW 30NW. 34 KT.......140NE 80SE 40SW 160NW. 12 FT SEAS..300NE 270SE 150SW 180NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.6N 47.9W AT 15/2100Z AT 15/1800Z CENTER WAS LOCATED NEAR 14.3N 47.6W FORECAST VALID 16/0600Z 15.5N 49.0W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 20NE 0SE 0SW 20NW. 50 KT... 50NE 20SE 0SW 40NW. 34 KT...140NE 90SE 50SW 140NW. FORECAST VALID 16/1800Z 16.8N 50.2W MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 30NE 20SE 0SW 30NW. 50 KT... 50NE 40SE 30SW 50NW. 34 KT...140NE 120SE 70SW 130NW. FORECAST VALID 17/0600Z 18.2N 51.6W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 40NE 25SE 15SW 40NW. 50 KT... 60NE 40SE 40SW 60NW. 34 KT...140NE 120SE 80SW 120NW. FORECAST VALID 17/1800Z 19.7N 53.1W MAX WIND 95 KT...GUSTS 115 KT. 64 KT... 40NE 25SE 20SW 40NW. 50 KT... 70NE 50SE 40SW 70NW. 34 KT...140NE 120SE 80SW 120NW. FORECAST VALID 18/0600Z 21.0N 54.4W MAX WIND 100 KT...GUSTS 120 KT. 50 KT... 80NE 70SE 50SW 70NW. 34 KT...150NE 120SE 90SW 130NW. FORECAST VALID 18/1800Z 22.5N 55.8W MAX WIND 100 KT...GUSTS 120 KT. 50 KT... 90NE 70SE 60SW 70NW. 34 KT...150NE 130SE 100SW 140NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 19/1800Z 25.4N 58.8W MAX WIND 105 KT...GUSTS 130 KT. OUTLOOK VALID 20/1800Z 28.5N 61.5W MAX WIND 95 KT...GUSTS 115 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.6N 47.9W NEXT ADVISORY AT 16/0300Z $$ FORECASTER ZELINSKY
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Tropical Storm Teddy Graphics
2020-09-15 16:39:57| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Tue, 15 Sep 2020 14:39:57 GMT Wind Speed Probabilities last updated Tue, 15 Sep 2020 14:39:57 GMT
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Tropical Storm Teddy Forecast Discussion Number 12
2020-09-15 16:34:30| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Tue Sep 15 2020 000 WTNT45 KNHC 151434 TCDAT5 Tropical Storm Teddy Discussion Number 12 NWS National Hurricane Center Miami FL AL202020 1100 AM AST Tue Sep 15 2020 Teddy's structure is slowly improving. Visible and IR imagery indicate that inner-core convection has increased, despite the continued presence of dry slots. The latest Dvorak intensity estimates from TAFB and SAB support the initial intensity of 55 kt. Teddy is still heading west-northwestward for the moment with a forward speed estimate of 11 kt. Teddy will likely turn northwestward today and continue steadily moving northwestward along the southwest periphery of a ridge over the central Atlantic for the next several days. In fact, all available guidance indicates that once it makes that northwestward turn, Teddy will barely deviate from its heading or forward speed for the rest of the week. The latest NHC track forecast is virtually identical to the previous one. The model spread is smaller than usual and confidence in the track forecast is high. Teddy's low shear and warm SST environment should be conducive for further strengthening, and the NHC intensity forecast is largely unchanged. Some dry air in the environment could restrict Teddy's intensification rate, but is not expected to prevent Teddy from becoming a hurricane later today or tonight. Continued strengthening is expected thereafter and Teddy is forecast to become a major hurricane within the next few days. On the whole, the intensity guidance is a little lower at the longer-range times, so the NHC forecast at days 4 and 5 is at the very top end of the guidance. I'd rather see a more consistent signal from the models before making a larger change to the forecast, especially given the impressive depiction of Teddy in the global model forecasts at that time. The 34 kt wind radii were expanded to the northwest of Teddy based on data from an 1136 UTC ASCAT-A overpass. FORECAST POSITIONS AND MAX WINDS INIT 15/1500Z 14.0N 47.0W 55 KT 65 MPH 12H 16/0000Z 14.9N 48.2W 65 KT 75 MPH 24H 16/1200Z 16.1N 49.5W 75 KT 85 MPH 36H 17/0000Z 17.4N 50.8W 85 KT 100 MPH 48H 17/1200Z 18.9N 52.3W 95 KT 110 MPH 60H 18/0000Z 20.3N 53.6W 100 KT 115 MPH 72H 18/1200Z 21.5N 55.0W 105 KT 120 MPH 96H 19/1200Z 24.0N 57.4W 110 KT 125 MPH 120H 20/1200Z 27.1N 60.0W 100 KT 115 MPH $$ Forecaster Zelinsky
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Summary for Tropical Storm Teddy (AT5/AL202020)
2020-09-15 16:34:05| National Hurricane Center (Atlantic)
...TEDDY WILL LIKELY BECOME A HURRICANE LATER TODAY OR EARLY WEDNESDAY... As of 11:00 AM AST Tue Sep 15 the center of Teddy was located near 14.0, -47.0 with movement WNW at 13 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 65 mph.
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