Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation.
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Hazardous Weather Conditions

Last Update: 925 PM EDT Wed Jul 17 2019

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Miami - South Florida Local Forecast Office

6NM NNE Black Point FL

Marine Zone Forecast


Synopsis: High pressure over the western Atlantic should keep the wind out of the east to southeast through the weekend, with seas running up to 2 feet at times. The only marine concern is convection. Showers and thunderstorms will continue to be possible and may bring locally hazardous conditions to the South Florida waters into next week.

.GULF STREAM HAZARDS...None.

The approximate location of the west wall of the Gulf Stream as of Jul 16, 2019 at 1200 UTC...

7 nautical miles east northeast of Fowey Rocks. 10 nautical miles east of Port Everglades. 8 nautical miles east of Lake Worth. 11 nautical miles east southeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Rest Of Tonight
East southeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of light showers and thunderstorms late in the evening, then chance of light showers and thunderstorms after midnight.
Thursday
East southeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of light showers and thunderstorms.
Thursday Night
East southeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and thunderstorms through the night.
Friday
East southeast winds 5 to 10 knots. Bay waters a light chop. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon.
Friday Night
East southeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and thunderstorms.
Saturday Through Sunday
East southeast winds 5 to 10 knots. Bay waters a light chop. Chance of showers and thunderstorms.
Sunday Night
East southeast winds 5 to 10 knots. Bay waters a light chop.
Monday
East southeast winds around 5 knots. Bay waters smooth. Chance of thunderstorms in the morning. Chance of showers. Slight chance of thunderstorms in the afternoon.
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ABOUT THIS FORECAST

Last Update: 925 PM EDT Wed Jul 17 2019
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