Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect.
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Hazardous Weather Conditions

Last Update: 942 AM EDT Sun Aug 20 2017

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Tampa Bay, FL Local Forecast Office

6NM SE Sanibel FL

Marine Zone Forecast


Synopsis: High pressure near Bermuda ridges west over the region. This will be the dominant weather feature through the period. With the easterly flow, showers and storms will be more common later evening and into the early morning hours each day. The main hazard will be dangerous lightning, locally higher winds and choppy seas near thunderstorms.

This Afternoon
East winds around 10 knots then becoming southeast in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Scattered thunderstorms.
Tonight
East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered thunderstorms.
Monday
East winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop.
Monday Night
East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Isolated thunderstorms.
Tuesday
Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered thunderstorms.
Tuesday Night
Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered thunderstorms.
Wednesday
East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Numerous thunderstorms.
Wednesday Night
Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Numerous thunderstorms.
Thursday
Southeast winds around 10 knots then becoming south in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Numerous thunderstorms.
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ABOUT THIS FORECAST

Last Update: 942 AM EDT Sun Aug 20 2017
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