A tropical storm is likely to form over the Gulf of Mexico by Friday or Saturday, and confidence is increasing that it will track toward the Florida Panhandle this weekend.
The storm could produce heavy rain, gusty winds and isolated tornadoes across a large portion of the state Friday night and Saturday.
The area of interest, referred to as Invest 96 by meteorologists, was producing a large area of showers and thunderstorms that were becoming better organized Thursday morning over the Bay of Campeche.
The National Hurricane Center has requested assistance from the Air Force Reserve hurricane hunters on Thursday to determine if it is acquiring tropical characteristics. Forecasters at the center have increased the probability of tropical or subtropical development to 80 percent, as of their 8 am Thursday tropical outlook.
Issued: 800 PM EDT Fri Sep 18 2020
The National Hurricane Center is issuing advisories on Hurricane Teddy, located over the central Atlantic, on recently upgraded Tropical Storm Beta, located over the western Gulf of Mexico, on Tropical Storm Wilfred, located over the eastern tropical Atlantic, and on Subtropical Storm Alpha, located inland over northwestern Portugal.
1. Post-Tropical Cyclone Paulette is located near the western Azores. The cyclone is forecast to move southward for the next couple of days and then stall over marginally warm waters a few hundred miles south of the Azores by the end of the weekend. The cyclone could redevelop tropical characteristics late this weekend or early next week while it moves little. For more information about marine hazards associated with this system, see High Seas Forecasts issued by Meteo France.
Formation chance through 48 hours...low...30 percent.
Formation chance through 5 days...medium...40 percent.
2. Another tropical wave is forecast to move off the west coast of Africa by early Saturday. Some slow development of the system will be possible thereafter while it moves generally west-northwestward over the far eastern Atlantic.
Formation chance through 48 hours...low...near 0 percent.
Formation chance through 5 days...low...20 percent.
Public Advisories on Tropical Storm Wilfred are issued under WMO header WTNT33 KNHC and under AWIPS header MIATCPAT3. Forecast/Advisories on Tropical Storm Wilfred are issued under WMO header WTNT23 KNHC and under AWIPS header MIATCMAT3.
Public Advisories on Subtropical Storm Alpha are issued under WMO header WTNT34 KNHC and under AWIPS header MIATCPAT4. Forecast/Advisories on Tropical Storm Wilfred are issued under WMO header WTNT24 KNHC and under AWIPS header MIATCMAT4.
High Seas Forecasts issued by Meteo France can be found under WMO header FQNT50 LFPW and available on the web at www.meteofrance.com/previsions-meteo-marine/bulletin/grandlarge/ metarea2
Upper level winds are likely to steer Invest 96 to the northeast in the coming days, where warm sea surface temperatures could allow for further organization and strengthening. However, those same winds are also expected to produce wind shear that could limit the extent of intensification before it reaches land. Most of the reliable forecast models are in agreement that, at the very least, a strong area of low pressure will approach the northern Gulf Coast states by Saturday.
Heavy rain and gusty winds will be possible along and east of where Invest 96 comes ashore, regardless of whether it acquires tropical characteristics or is classified as a named storm. Isolated tornadoes or water spouts will also be possible east of its path where low-level spin and instability is present.
The first periods of rain could arrive along portions of the Emerald and Nature Coasts by Friday afternoon or early evening. A more widespread area of rain is likely to develop and move farther inland overnight, generally expanding in coverage to include most of the Florida Panhandle and north-central Florida by Saturday morning. Current forecast data suggests the heaviest bands of rain will set up somewhere between Panama City and Cedar Key as the center of Invest 96 nears the coast Saturday afternoon and evening. The system is then likely to move swiftly to the northeast, resulting in a gradual reduction in rainfall intensity and coverage by Sunday morning.
The timing of the rain over a weekend may be disappointing to some, but many Floridians will welcome it. A moderate drought has developed over the past few months along the I-10 corridor, which is actually where some of the heaviest rain may occur. Current forecast data suggests 2 to 4 inches of rain could fall in the Panhandle, with locally higher amounts possible. Some of the rainfall accumulations could come over a short period of time, making flash flooding possible, especially in poorly drained and low lying areas.
Meteorologists at the Florida Public Radio Emergency Network will continue to monitor the system and provided updates as necessary. Stay up to date with forecasts and alerts for your area by downloading the Florida Storms App, available for all iOS and Android phones or tablets.
Expires at 9:03pm on Wednesday October 16th, 2019
Partners of the Florida Public Radio Emergency Network include: Florida's Division of Emergency Management, WDNA (Miami), WFIT (Melbourne), WMFE (Orlando), WFSU (Tallahassee), WGCU (Fort Myers), WJCT (Jacksonville), WKGC (Panama City), WLRN (Miami), WMNF (Tampa-Sarasota), WQCS (Fort Pierce), WUFT (Gainesville-Ocala), WUSF (Tampa), WUWF (Pensacola) and Florida Public Media.
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