National Weather Service United States Department of Commerce
This is the National Weather Service Miami-South Florida page for the Hazardous Weather Outlook (HWO). This product is for South Florida and the adjacent Gulf and Atlantic waters, including Biscayne Bay and Lake Okeechobee. This product represents the threat level (None, Slight, Moderate, or High) for various weather hazards coming across South Florida, valid for the Day 1 period.


Today's Weather Impact Levels
 

Impact Levels

Represents the impact level for various weather hazards common to South Florida and the adjacent local waters. Thresholds are None, Slight, Moderate, or High. These impact levels are designed to provide decision support for the Day 1 period.

Hover over thumbnails below to view larger image.
Coastal Flood
Coastal Flood
Fire Weather
Fire Weather
Flood
Flood
Hail
Hail
Lightning
Lightning
Rip Current
Rip Current
Temperature
Temperature
Tornado
Tornado
Visibility
Visibility
Waterspout
Waterspout
Wave
Wave
Wind
Wind

 


069
FLUS42 KMFL 211346 AAA
HWOMFL

Hazardous Weather Outlook for South Florida...UPDATED
National Weather Service Miami FL
946 AM EDT Fri Sep 21 2018

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
220200-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Glades-Hendry-
Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier-
Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade-
Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami-
Dade-Far South Miami-Dade-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
946 AM EDT Fri Sep 21 2018

...SCATTERED TO NUMEROUS THUNDERSTORMS FAVORING INTERIOR AND WEST...
...LOCALLY HEAVY RAINFALL MAY CAUSE URBAN FLOODING...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms: Scattered thunderstorms across South Florida this
afternoon, favoring interior areas and the Gulf coast. The primary
threats will be frequent lightning, gusty winds, and hail.

Tornadoes: Some funnel clouds will be possible with showers and
thunderstorms today, particularly around boundary collisions. A
funnel cloud touching down to form a weak tornado cannot be ruled
out.

Waterspouts: Some waterspouts will be possible with showers and
thunderstorms today, particularly around boundary collisions.

Wind: Strong wind gusts of 45 to 55 mph are possible with strong
thunderstorms today.

Hail: Hail up to the size of nickels is possible with strong
thunderstorms today.

Flooding: There is the potential for urban flooding, especially over
areas of poor drainage, with locally heavy downpours.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Scattered mainly afternoon thunderstorms are forecast each day,
especially over the western interior. The primary threats are
lightning and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind, hail, funnel clouds,
waterspouts, and flooding to the National Weather Service forecast
office in Miami.

For more information...visit the National Weather Service in
Miami website at www.weather.gov/miami.

$$

RAG