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.
Read More...

Hazardous Weather Conditions

Last Update: 346 AM EDT Thu Jul 18 2019

View Nearby Observations

For More Weather Information:

Miami - South Florida Local Forecast Office

11NM W Marco Island 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 18, 2019 at 1200 UTC...

10 nautical miles southeast of Fowey Rocks. 13 nautical miles east southeast of Port Everglades. 8 nautical miles northeast of Lake Worth. 10 nautical miles east northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Today
Southeast winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. Chance of showers and thunderstorms.
Tonight
East winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. Chance of showers and thunderstorms after midnight.
Friday
Southeast winds 5 to 10 knots. Seas less than 2 feet. Period 3 seconds. Bay and inland waters a light chop. Slight chance of showers and thunderstorms in the morning. Chance of showers and thunderstorms in the afternoon.
Friday Night
East southeast winds 5 to 10 knots. Seas less than 2 feet. Period 2 seconds. Bay and inland waters a light chop. Slight chance of showers and thunderstorms.
Saturday
Winds southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon.
Saturday Night
East southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. Chance of showers and thunderstorms.
Sunday
Southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. Showers and thunderstorms likely.
Sunday Night And Monday
Southeast winds 5 to 10 knots. Seas less than 2 feet. Bay and inland waters a light chop. Chance of showers and thunderstorms.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 346 AM EDT Thu Jul 18 2019
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data