Severe Thunderstorm Warning 25, NWS Miami, FL

353 
WWUS52 KMFL 172022
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
422 PM EDT Sun May 17 2020

FLC086-172045-
/O.CON.KMFL.SV.W.0025.000000T0000Z-200517T2045Z/
Miami-Dade FL-
422 PM EDT Sun May 17 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR EASTERN MIAMI-DADE COUNTY...

At 422 PM EDT, a severe thunderstorm was located over Palmetto Bay,
or near Kendall, moving south at 10 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Miami, Miami Beach, Coral Gables, Key Biscayne and South Miami. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2553 8015 2561 8038 2579 8035 2580 8011
TIME...MOT...LOC 2022Z 343DEG 8KT 2563 8032 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

RAG

Area Forecast Discussion
National Weather Service Miami FL
114 PM EDT Sun May 17 2020

.Aviation...
Mostly VFR conditions are expected today with some shra and tsra
development possible across the interior and East Coast this
afternoon. Fog/low stratus possible over the interior tonight that
could spread into the taf sites again. Another round of afternoon
shra and tsra possible tomorrow, with better coverage north of the
Miami terminals due to more southerly flow.

&&

.Prev Discussion... /issued 955 AM EDT Sun May 17 2020/

Update...
Previous forecast appears to be on track with warm temperatures
today and a slight chance of showers and thunderstorms across the
interior and East Coast this afternoon. The Atlantic seabreeze
should form this afternoon but probably won't make it too far
inland given the overall westerly flow.

Prev Discussion... /issued 311 AM EDT Sun May 17 2020/

DRIER CONDITIONS EARLY THIS WEEK BEFORE EARLY SUMMER WEATHER
PATTERN MIDDLE TO END OF THIS WEEK...

Short Term...

Today into Tonight...
Tropical Storm Arthur is forecast by the NHC to continue to move
northeast towards the outer banks of North Carolina, as an mid to
upper level low over Texas moves east northeast towards the
Tennessee Valley. This will allow for the the wind flow over
South Florida to be south southwest bringing in some dry air to
the region from the Gulf of Mexico. There could still be some
showers and even a thunderstorm over the northeast areas of South
Florida this afternoon into early this evening, due to the west
coast sea breeze pushing eastward across the region and
interacting to with the Lake Okeechobee breeze. The primary
impacts from the thunderstorms will be gusty winds, lightning
strikes, and locally heavy rainfall.

Monday through Tuesday...
The mid to upper level low will become stationary over the Tennessee
Valley, as a low level trough associated with the low moves
eastward from the Gulf of Mexico into South Florida. This will
keep the south to southwest wind flow over South Florida allowing
for tropical moisture to work into the region ahead of the low
level trough. Therefore, POPs will be increasing Monday into
Monday and will be in the scattered to likely range on Tuesday
with the highs PoPs over the eastern areas each day.

Thunderstorms are also possible each afternoon especially over
the interior and east coast metro areas where the sea breezes
collide. A this time, the primary impacts from the storms will be
lightning strikes, gusty winds, and locally heavy rainfall.

Long Term...
The mid to upper level low will slowly dissipate through end of
this week, as the low level trough slowly dissipate over South
Florida. This will keep the tropical moisture in place over South
Florida, as the winds swing from a south southwest direction
middle of the week to more of an easterly direction by late this
week. Therefore, scattered to numerous POPs will remain over South
Florida for the middle of this week with the highs POPs over the
east coast metro areas. The POPs will then decrease to more of a
early summer pattern for the end of next week with the highest
POPs over the interior and west coast metro areas.

Marine...
The winds will remain south to southwest direction today into
middle of this week, as the wind speeds will be 15 knots or less
over all of South Florida waters. The Atlantic seas will be 3 feet
or less with the Gulf seas at 2 feet or less through middle of
this week. Therefore, boating conditions will be good outside of
any showers or thunderstorms.
&&

.Preliminary Point Temps/PoPs...
West Palm Beach  73  92  73  88 /  20  40  50  80
Fort Lauderdale  74  91  74  87 /   0  20  40  70
Miami            73  92  73  88 /   0  20  40  60
Naples           75  87  75  85 /  10  20  60  70

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
GM...None.
&&

Aviation...32/MM

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
1007 AM EDT Sun May 17 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
180215-
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-
1007 AM EDT Sun May 17 2020

...Thunderstorms Possible This Afternoon...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Thunderstorms: A few thunderstorms are possible this afternoon and
evening over the interior and East Coast. The primary hazards will
be lightning strikes, gusty winds, and locally heavy rainfall.

Visibility: Patchy fog is possible over most of South Florida
overnight tonight, with patchy smoke over the southern Everglades
and interior areas of Collier County due to wildfires.

Temperatures: Heat indices could reach 100 degrees over portions of
the interior and East Coast this afternoon.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

There will be a chance of thunderstorms across South Florida for the
middle to end of THIS week. Gusty winds, locally heavy rainfall,
lightning, and waterspouts will be possible with the strongest
storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

Special Weather Statement
National Weather Service Miami FL
303 PM EDT Sun May 17 2020

FLZ071>074-172-173-172015-
Inland Broward County FL-Coastal Broward County FL-
Metro Broward County FL-Metropolitan Miami Dade FL-Inland Miami-
Dade County FL-Coastal Miami Dade County FL-
303 PM EDT Sun May 17 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE AND SOUTHERN
BROWARD COUNTIES UNTIL 415 PM EDT...

* At 302 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from near
  Pennsuco to Marlins Park. Movement was northeast at 10 mph.

* Small hail, funnel clouds, and winds in excess of 45 mph possible
  with these storms.

* Locations impacted include...
  Miami, Hialeah, Fort Lauderdale, Pembroke Pines, Hollywood,
  Miramar, Davie, Miami Beach, Plantation, Sunrise, Tamarac, Margate,
  Coral Gables, Key Biscayne, South Miami, Surfside, Miami Gardens,
  Virginia Key, Hallandale and Lauderhill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

Funnel clouds occasionally touch down and produce tornadoes or
waterspouts. Move indoors and stay away from windows.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2592 7993 2585 8004 2573 8006 2565 8028
      2592 8049 2623 8020
TIME...MOT...LOC 1902Z 235DEG 9KT 2593 8038 2576 8022

13

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
356 PM EDT SUN MAY 17 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0348 PM     HAIL             1 WSW CORAL WAY VILLAGE 25.72N  80.34W
05/17/2020  E0.50 INCH       MIAMI-DADE         FL   TRAINED SPOTTER

            THUNDERSTORM HAIL

&&

EVENT NUMBER MFL2000065

SI