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Tropical Storm Barbara Forecast Discussion Number 3
2019-07-01 04:33:59| Tropical Depression LIDIA
Issued at 900 PM MDT Sun Jun 30 2019
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barbara
Tropical Storm Barbara Forecast Discussion Number 2
2019-06-30 22:35:54| Tropical Depression LIDIA
Issued at 300 PM MDT Sun Jun 30 2019
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barbara
Tropical Storm Barbara Forecast Discussion Number 1
2019-06-30 17:02:54| Tropical Depression LIDIA
Issued at 900 AM MDT Sun Jun 30 2019
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Post-Tropical Cyclone Alvin Forecast Discussion Number 16
2019-06-29 16:36:02| National Hurricane Center (East Pacific)
Issued at 800 AM PDT Sat Jun 29 2019 000 WTPZ41 KNHC 291435 TCDEP1 Post-Tropical Cyclone Alvin Discussion Number 16 NWS National Hurricane Center Miami FL EP012019 800 AM PDT Sat Jun 29 2019 Alvin continues to be devoid of deep convection while moving over cooler waters with strong southwesterly shear across the system's circulation. Due to the ongoing lack of convection, it is estimated that Alvin has degenerated into a post-tropical remnant low. The remnant low will continue to move west-northwestward to northwestward until it dissipates in 18-24 h. This is the last advisory on Alvin issued by the National Hurricane Center. For additional information on the remnant low please see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php FORECAST POSITIONS AND MAX WINDS INIT 29/1500Z 20.7N 120.5W 25 KT 30 MPH...POST-TROP/REMNT LOW 12H 30/0000Z 21.3N 121.4W 20 KT 25 MPH...POST-TROP/REMNT LOW 24H 30/1200Z...DISSIPATED $$ Forecaster Latto/Beven
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Tropical Depression Alvin Forecast Discussion Number 15
2019-06-29 10:34:29| National Hurricane Center (East Pacific)
Issued at 200 AM PDT Sat Jun 29 2019 000 WTPZ41 KNHC 290834 TCDEP1 Tropical Depression Alvin Discussion Number 15 NWS National Hurricane Center Miami FL EP012019 200 AM PDT Sat Jun 29 2019 Alvin has become a swirl of low and mid-level clouds as strong shear and cooler waters have caused a rapid demise of the tropical cyclone. The initial intensity has been lowered to 25 kt, and is based on the latest Dvorak T-numbers. The hostile environmental conditions should continue to cause the cyclone to weaken today, and the system should degenerate into a remnant low later this morning. As expected, Alvin has slowed down and turned west-northwestward, with an initial motion estimate of 290/7 kt. Now that Alvin has become a vertically shallow system, a slow westward to west- northwestward motion within the low-level trade wind flow is forecast until dissipation occurs. The NHC forecast track lies along the southern edge of the guidance envelope and is in best agreement with the latest ECMWF. FORECAST POSITIONS AND MAX WINDS INIT 29/0900Z 20.3N 119.9W 25 KT 30 MPH 12H 29/1800Z 20.6N 121.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 24H 30/0600Z...DISSIPATED $$ Forecaster Brown
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