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Tropical Depression Norma Forecast Advisory Number 20
2017-09-19 10:32:46| Tropical Depression LIDIA
Issued at 0900 UTC TUE SEP 19 2017
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Summary for Tropical Depression Norma (EP2/EP172017)
2017-09-19 10:32:45| Tropical Depression LIDIA
...NORMA WEAKENS TO A DEPRESSION... As of 3:00 AM MDT Tue Sep 19 the center of Norma was located near 21.6, -113.9 with movement W at 6 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.
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Tropical Depression Norma Public Advisory Number 20
2017-09-19 10:32:45| Tropical Depression LIDIA
...NORMA WEAKENS TO A DEPRESSION... Location: 21.6°N 113.9°W Max sustained: 35 mph Moving: W at 6 mph Min pressure: 1007 mb Issued at 300 AM MDT Tue Sep 19 2017
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Tropical Depression Lee Graphics
2017-09-18 22:38:50| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 18 Sep 2017 20:38:50 GMT Wind Speed Probabilities last updated Mon, 18 Sep 2017 20:38:50 GMT
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Tropical Depression Lee Forecast Discussion Number 16
2017-09-18 22:35:35| National Hurricane Center (Atlantic)
Issued at 500 PM AST Mon Sep 18 2017 000 WTNT44 KNHC 182035 TCDAT4 Tropical Depression Lee Discussion Number 16 NWS National Hurricane Center Miami FL AL142017 500 PM AST Mon Sep 18 2017 The convective burst that occurred near the center of Lee this morning has dissipated leaving only a low-level cloud swirl. The initial intensity of the system is held at 30 kt, in agreement with the Dvorak CI-numbers from TAFB and SAB. The shear over Lee is estimated to be close to 40 kt according to the SHIPS model, and these very hostile winds and dry air should cause Lee to weaken and degenerate into a remnant low within the next 12 to 24 hours. The GFS and ECMWF suggest that whatever is left of Lee will likely open into a trough in 36 to 48 hours. The depression is moving west-northwestward at 14 kt steered by the southwestern periphery of a low- to mid-level ridge over the eastern Atlantic. The weak system is expected to turn to the northwest and slow down tonight as it moves toward a trough, and it should continue in that direction until it dissipates. Little change was made to the previous NHC track forecast, and this one remains near the middle of the guidance envelope. FORECAST POSITIONS AND MAX WINDS INIT 18/2100Z 15.0N 42.3W 30 KT 35 MPH 12H 19/0600Z 16.0N 43.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 19/1800Z 17.2N 44.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 20/0600Z 18.7N 45.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 48H 20/1800Z...DISSIPATED $$ Forecaster Cangialosi
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