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NWS Web BriefingMarch 1, 2010
National Weather Service
Miami/South Florida
Forecast Office
Strong Storms Possible Tuesday
• Low pressure developing in the Gulf of Mexico today will move east and across North Florida tomorrow.
• Line of showers and thunderstorms is forecast to move through south Florida tomorrow.
• Cold front moves through area late tomorrow.
Current Conditions
Tonight
Tuesday AM
Cold front and possible squall line approaches SW Florida coast between 7-9 AM
Jet Stream Adds Punch to Storms
Tuesday Evening
SPC Outlook
15% probability of winds > 58 mph
Timing and Impacts
• Main impact expected to be strong wind gusts 40-60 mph or higher, possibly resulting in broken tree branches and downed power lines.
• Very slight chance of a tornado.• Very slight chance of hail.• No rainfall flooding concerns.• Gusty winds outside of storms Tuesday and
Tuesday night (20-30 mph sustained)• Coastal flooding possible SW coast Tuesday
night.
Timing and Impacts
• Squall line expected to move onshore SW Gulf coast between 7-9 AM.
• Lake Okeechobee region between 9-10 AM• Palm Beaches 10 AM to Noon• Broward/Miami-Dade 11 AM to 1 PM• Limiting factor is lack of strong heating and
moisture return to area.• Higher chance of impacts from Palm Beaches to
Miami due to later arrival of squall line which gives atmosphere more time to destabilize.
Questions?
Thank you for your time!
National Weather Service
Miami/South Florida Forecast Office