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Hazardous Weather Outlook


Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
809 AM EDT Tue Aug 20 2019

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
210015-
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-
809 AM EDT Tue Aug 20 2019

...Thunderstorms Expected Across South Florida Today...
...Moderate Risk of Rip Currents for the Atlantic Beaches...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Rip currents: There is a moderate risk for Rip Currents for the
Atlantic Beaches of South Florida today.

Thunderstorms: Thunderstorms are possible across all of South Florida
today, although the best chances are in the western interior and
along the Gulf Coast this afternoon. The main hazards are lightning
and the flooding of roadways and poor drainage areas. Gusty winds are
possible with the stronger storms as well.

Waterspouts: There is a slight chance of waterspouts for all of the South
Florida waters today.

Flooding: There are a slight chance for the flooding of roadways and
low laying areas that are prone to flooding from heavy rain.

Temperatures: The Heat index is forecast to be 105 to 107 for
interior Collier County today.


.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Thunderstorm coverage is forecast to increase across South Florida
for the remainder of the week. Lightning and urban street flooding
are the main hazards from the storms.

The heat index may reach around 105 degrees for a few hours in the
late morning and early afternoon through the rest of the week, mainly
in the interior areas.


.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated. However,
individual spotters are encouraged to report high wind, hail 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.

$$

Hazardous Weather Outlook...Updated
National Weather Service Melbourne FL
10 AM EDT Tue Aug 20 2019

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-210000-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia-
Northern Lake-Orange-Seminole-Southern Brevard-Osceola-
Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
10 AM EDT Tue Aug 20 2019

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
Increasing moisture will result in slightly higher chances for
showers and lightning storms today across inland locations.
Isolated storms will be possible for the coastal counties through
early afternoon before the higher chances transition inland for
the remainder of the afternoon continuing into early evening.
Storm motion will be generally to the northwest at around 10 mph.
Stronger storms will be capable of wind gusts over 40 mph, frequent
lightning, and torrential downpours. Move safely indoors at the
first sign of threatening weather.

Isolated lightning storms are then possible overnight tonight
over the Gulf Stream.

.FLOOD IMPACT...
Locally heavy rainfall of 1 to 2 inches is possible in slower
moving storms across the interior. This could result in localized
urban and poor drainage type flooding as well as ponding of water
on roadways. Never drive into water-covered roads.

.MARINE THUNDERSTORM GUST IMPACT...
Storms today will be moving to the northwest at around 10 knots and
will be capable of producing wind gusts above 35 knots over the
nearshore Atlantic waters and Intracoastal Waterway through early
this afternoon and then across inland lakes through this evening.

.RIVER FLOOD IMPACT...
The Saint Johns River near Geneva remains in action stage with a
slow rise in the river level expected to continue through tonight.
When action stage is reached, no wake zones go into effect and
county parks are closed for areas east of Lake Monroe to Lake
Harney.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
Scattered showers and lightning storms will occur each day through
late week before higher coverage is expected this weekend. Higher
coverage of showers and storms will continue to favor inland
locations.

River levels along the Saint Johns River near Geneva will continue
to slowly rise and remain above action stage into this weekend.


.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed this afternoon and tonight.

$$

Combs/Sedlock

Hazardous Weather Outlook
National Weather Service Key West FL
424 AM EDT Tue Aug 20 2019

FLZ076>078-GMZ031>035-042>044-052>055-072>075-210830-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
424 AM EDT Tue Aug 20 2019

This Hazardous Weather Outlook is for the Florida Keys and
adjacent coastal waters.

.DAY ONE...TODAY AND TONIGHT

Isolated to scattered thunderstorms are possible along the
Florida Keys and the adjacent nearshore and surrounding offshore
coastal waters.

The primary thunderstorm hazards will be cloud to surface
lightning strikes and strong gusty winds.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Isolated to scattered thunderstorms are anticipated along the
island chain and the surrounding coastal waters.

The primary thunderstorm hazards will be cloud to surface
lightning strikes and gusty winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$

APA

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NOAA National Weather Service
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Silver Spring, MD 20910
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Page last modified: June 2, 2009
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