A flood watch was issued for South Florida until 7 PM on March 12, 2010 due to a stalled front and low pressure system providing moisture for heavy rain and severe thunderstorms, with 3 to 7 inches of rain expected to cause flooding of roads and potential water entry into structures. Isolated tornadoes with wind gusts up to 60 mph were also possible from Collier to Miami-Dade counties through the evening. The front was forecast to move east overnight, ending the rain and bringing drier, cooler weather for the weekend.

1. Flooding/Severe Weather Potential: March 12, 2010 National Weather Service Miami/South Florida Forecast Office

2. Weather Map Stalled front over South Florida in combination with low pressure over Gulf providing moisture and focus for potential heavy rains and severe thunderstorms today.

3. Flood Watch Until 7 PM

4. 3-5” in yellow/red. 5-7” in white and purple

5. Atmospheric Moisture Pointed At Florida

6. Radar Loop

7. Moderate Flood Potential: Water entering structures possible

8. Wind gusts 40-60 mph and isolated tornadoes possible primarily Collier/Broward/Miami-Dade/Mainland Monroe through 7 PM

9. Impacts Significant flooding of roads possible all of South Florida today. Isolated areas could see rain in excess of 5 inches, leading to water possibly entering structures . Strong/severe thunderstorms with damaging wind gusts 40-60 mph and isolated tornadoes possible Naples-Broward south.

10. Midnight Tonight Front east of area, rain ending overnight

11. Weekend Outlook Dry and cooler weather expected Saturday and Sunday. Highs in the 70s. Lows in the 50s. Good weather for outdoor events this weekend.

12. Questions? Thank you for your time! National Weather Service Miami/South Florida Forecast Office