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Tropical Storm Maria Forecast Discussion Number 58
2017-09-30 16:32:51| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Sat Sep 30 2017 000 WTNT45 KNHC 301432 TCDAT5 Tropical Storm Maria Discussion Number 58 NWS National Hurricane Center Miami FL AL152017 1100 AM AST Sat Sep 30 2017 Maria is on its way to becoming extratropical as cold air continues to wrap around the circulation. The cloud pattern has become elongated, while microwave data show that the low- and mid-level centers are rapidly becoming detached. However, Maria is still able to produce a small but concentrated area of deep convection just to the east of the center, and the maximum winds are still estimated at 50-kt. Maria should transition to an extratropical low by later today or tonight, and then it should be absorbed by a frontal zone in a couple of days. The track continues to be straightforward. Maria is embedded in the fast mid-latitude westerlies, and this flow should steer the cyclone toward the east-northeast with increasing forward speed until dissipation or abortion by a cold front. FORECAST POSITIONS AND MAX WINDS INIT 30/1500Z 40.7N 47.2W 50 KT 60 MPH 12H 01/0000Z 42.5N 42.0W 50 KT 60 MPH...POST-TROP/EXTRATROP 24H 01/1200Z 45.0N 35.0W 50 KT 60 MPH...POST-TROP/EXTRATROP 36H 02/0000Z 47.5N 26.0W 40 KT 45 MPH...POST-TROP/EXTRATROP 48H 02/1200Z 49.0N 17.5W 30 KT 35 MPH...POST-TROP/EXTRATROP 72H 03/1200Z...DISSIPATED $$ Forecaster Avila
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