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Hazardous Weather Outlook


Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
416 AM EDT Fri Oct 18 2019

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
182030-
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-
416 AM EDT Fri Oct 18 2019

...Strong thunderstorms possible later today through the overnight...
...Marine conditions will deteriorate in Gulf due to PTC Sixteen...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms: Lightning, locally heavy rainfall, and gusty winds are
primary hazards with thunderstorms.

Tornadoes: Stronger thunderstorms will be capable of producing funnel
clouds or an isolated weak tornado, particularly later tonight over
portions of Southwest Florida and the Lake Okeechobee region.

Waterspouts: Showers and thunderstorms could produce waterspouts,
mainly over the Gulf and Lake Okeechobee waters.

Wind: Stronger thunderstorms could produce wind gusts capable of
causing isolated wind damage. Sustained winds will also increase to
20 to 25 knots over the Gulf of Mexico and around 20 knots over the
Atlantic waters, causing hazardous marine conditions. Reference the
Small Craft Advisory for the latest marine details.

Flooding: Training showers and thunderstorms could cause locally
heavy rainfall capable of producing the ponding of water on roads and
low-lying poorly drained areas, mainly from the Alligator Alley and
Interstate 595 corridor northward.

Temperatures: Heat Index values will be near 100 across portions of
inland South Florida today.

Visibility: There could be some patchy fog across Southwest Florida
and inland South Florida this morning and again tonight. Visibility
could drop to a quarter of a mile in some spots.

Waves: Seas will build to 7 to 10 feet in the Gulf of Mexico late
tonight into Saturday. Reference the Small Craft Advisory for the
latest details.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Thunderstorms are possible Saturday through Monday and Wednesday
through Thursday. Strong thunderstorms are possible Saturday,
particularly around Southwest Florida and the Lake Okeechobee
region.

20 to 25 knot winds and 7 to 10 foot seas in the Gulf of Mexico will
linger through Saturday, creating hazardous marine conditions.

The risk of Rip Currents will become elevated along the Gulf and
some Atlantic beaches this weekend. Surf heights along the Gulf
beaches could reach around 5 feet on Saturday.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind, waterspouts, funnel
clouds, 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

Hazardous Weather Outlook
National Weather Service Melbourne FL
344 AM EDT Fri Oct 18 2019

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-182300-
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-
344 AM EDT Fri Oct 18 2019

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Expect isolated lightning storms to develop over east central
Florida this afternoon. Affected areas will see briefly heavy
rains, wind gusts of 30 to 40 mph, along with occasional lightning
in stronger storms which develop. A developing Gulf of Mexico low
pressure center will approach the region tonight. Rapidly increasing
winds through the atmosphere will promote a few strong to possibly
severe storms. These rapidly moving storms will be capable of
damaging wind gusts near 45 to 60 mph, along with a few tornadoes
within the highly sheared wind environment late tonight and into
early Saturday morning.

.FLOOD IMPACT...
Rain amounts of one to two inches will be possible in a relatively
short time. Areas affected by multiple storms may experience
standing water with temporary minor flooding of low spots and
along roadways.

.MARINE THUNDERSTORM GUST IMPACT...
Lightning storms and occasional squalls over the Atlantic waters
will be capable of producing wind gusts of 35 to 45 knots tonight
and into early Saturday.

.WIND AND SEA IMPACT...
Winds and seas will increase over the marine area later today
with approach of the low pressure center over the eastern gulf. A
Small Craft Advisory will be in effect after 10 pm tonight over
the waters north of Sebastian Inlet, with caution likely south of
Sebastian Inlet.

.RIVER FLOOD IMPACT...
The Saint Johns River near Astor remains in Minor Flood stage and
is forecast to be in Minor Flood stage through this weekend with
only a very slow decline in levels expected.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
A continuing threat for storms containing strong wind gusts and
perhaps an isolated tornado will occur across the area into
early Saturday. Poor to potentially hazardous boating conditions
over the adjacent Atlantic waters are also expected during the
weekend. Persons should continue to monitor the latest weather
forecasts.

.SPOTTER INFORMATION STATEMENT...
Spotters are requested to monitor the weather and self activate
tonight if needed.

$$

Pendergrast

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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