thunderman Posted August 1, 2020 Share Posted August 1, 2020 NHC initiated advisories on the Verde system at 8PM. Forecasted to become Josephine tonight or tomorrow. Initial intensity is set at 30 KT and 1007 MB Link to comment Share on other sites More sharing options...
yoda Posted August 1, 2020 Share Posted August 1, 2020 Sounds like no to being named Tropical Depression Ten Discussion Number 2 NWS National Hurricane Center Miami FL AL102020 200 AM CVT Sat Aug 01 2020 The small depression maintained a large burst of convection in its northwest quadrant for several hours after the last advisory, though cloud tops have warmed steadily since around 00Z. An ASCAT-B pass near 2300 UTC showed max winds near 35 kt, but these winds coincided with the coldest cloud tops in Meteosat imagery at that time, indicating they may have been rain inflated. Data from ASCAT-C valid about 40 minutes earlier only showed peak winds closer to 30 kt, also near the deepest convection. The highest wind retrievals in the east half of the circulation, where you would often expect the highest winds for a system moving north or northwest, were between 25 and 30 kt in both passes. Subjective Dvorak intensity estimates were 30 kt and 25 kt from TAFB and SAB, respectively, at 00Z. It is possible that the cyclone briefly had tropical-storm-strength winds at one point, but given the observed warming of cloud tops since 00Z, the intensity is maintained at 30 kt for this advisory. There is no real change to the forecast reasoning. The depression is moving northwestward and a turn toward the west-northwest is expected later today as it moves around a larger cyclonic gyre. Conditions do not appear to be favorable for any strengthening, and the dynamical models indicate that deep convection will dissipate later today due to cool underlying SSTs and a drier surrounding environment. The NHC track and intensity forecast is based on the TVCA and IVCN consensus aids and has not been changed significantly from the previous advisory. FORECAST POSITIONS AND MAX WINDS INIT 01/0300Z 17.1N 21.1W 30 KT 35 MPH 12H 01/1200Z 18.4N 22.5W 30 KT 35 MPH 24H 02/0000Z 19.3N 25.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 02/1200Z 20.0N 28.0W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 03/0000Z...DISSIPATED $$ Forecaster Zelinsky Link to comment Share on other sites More sharing options...
yoda Posted August 1, 2020 Share Posted August 1, 2020 And... bye Tropical Depression Ten Discussion Number 3 NWS National Hurricane Center Miami FL AL102020 800 AM CVT Sat Aug 01 2020 Satellite images indicate that only a small area of deep convection remains with the depression, and the center is partially exposed on the southeastern edge of the thunderstorms. The initial wind speed is kept 30 kt based on persistence. It seems like the chance for the depression to become a tropical storm has passed with it now moving over cooler waters into a drier air mass. Thus weakening is forecast, and the system will likely degenerate into a remnant low later today. The depression continues moving northwestward, and that course should persist today before turning towards the west-northwest around a larger cyclonic gyre on Sunday. A slight northward adjustment has been made to the forecast, a bit south of the GFS model. All of the model guidance dissipate the small low within 36 hours, so this is indicated in the new forecast. FORECAST POSITIONS AND MAX WINDS INIT 01/0900Z 17.8N 21.6W 30 KT 35 MPH 12H 01/1800Z 19.2N 23.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 02/0600Z 20.5N 26.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 02/1800Z...DISSIPATED $$ Forecaster Blake Link to comment Share on other sites More sharing options...
yoda Posted August 1, 2020 Share Posted August 1, 2020 BULLETIN Tropical Depression Ten Advisory Number 3 NWS National Hurricane Center Miami FL AL102020 800 AM CVT Sat Aug 01 2020 ...DEPRESSION FORECAST TO BECOME A REMNANT LOW LATER TODAY... SUMMARY OF 800 AM CVT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.8N 21.6W ABOUT 200 MI...325 KM NE OF THE CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 800 AM CVT (0900 UTC), the center of Tropical Depression Ten was located near latitude 17.8 North, longitude 21.6 West. The depression is moving toward the northwest near 16 mph (26 km/h). A turn toward the west-northwest or west is expected by Saturday afternoon. On the forecast track, the center of the depression is expected to move north of the Cabo Verde Islands later today. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. The depression is forecast to weaken and become a remnant low later today. The estimated minimum central pressure is 1008 mb (29.77 inches). Link to comment Share on other sites More sharing options...
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