Alert archive / Florida / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 2, NWS Miami, FL

February 12, 2010Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Feb 12, 2010, 6:20 PM EST for Broward County, Miami-Dade County, Florida. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 12, 2010, 6:20 PM EST (23:20 UTC)
Expired: Feb 12, 2010, 6:45 PM EST
In force: 25 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

Counties Broward County, FL, Miami-Dade County, FL

The radar

The Miami radar (KAMX), 65 km from the middle of the area, began a volume at 23:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 12, 2:35 PM EST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.3 hours before the alert went out and 39 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 897 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 199 m²/s²
0-3 km storm-relative helicity: 328 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

062 
WUUS52 KMFL 122320
SVRMFL
FLC011-086-122345-
/O.NEW.KMFL.SV.W.0002.100212T2320Z-100212T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
620 PM EST FRI FEB 12 2010

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BROWARD COUNTY IN SOUTHEAST FLORIDA...
  THIS INCLUDES THE CITIES OF...TAMARAC...SUNRISE...POMPANO BEACH...
  PLANTATION...PEMBROKE PINES...MIRAMAR...MARGATE...HOLLYWOOD...
  HALLANDALE...FORT LAUDERDALE...DEERFIELD BEACH...DAVIE...CORAL
  SPRINGS...
  NORTHEASTERN MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 645 PM EST

* AT 618 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 4 MILES WEST OF DEERFIELD BEACH TO 4 MILES SOUTHWEST OF CAROL
  CITY...AND MOVING EAST AT 45 MPH.

* THE LINE OF STORMS WILL AFFECT...
  PINES BLVD AND UNIVERSITY DRIVE...
  CAROL CITY...
  DANIA BEACH...
  AVENTURA...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR
ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS
SPOTTED.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT
305.229.4528 TO REPORT SEVERE WEATHER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

&&

LAT...LON 2618 8010 2606 8010 2594 8011 2591 8045
      2633 8029 2632 8007 2629 8007
TIME...MOT...LOC 2320Z 277DEG 40KT 2632 8014 2590 8030

$$

BAXTER

1 follow-up statement

671 
WWUS52 KMFL 122335
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
635 PM EST FRI FEB 12 2010

FLC011-086-122345-
/O.CON.KMFL.SV.W.0002.000000T0000Z-100212T2345Z/
BROWARD FL-MIAMI-DADE FL-
635 PM EST FRI FEB 12 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EST
FOR EXTREME NORTHEASTERN MIAMI-DADE AND SOUTHEASTERN BROWARD
COUNTIES...

AT 632 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SEA RANCH LAKES TO DOLPHINS STADIUM...MOVING EAST AT
45 MPH.

THE SEVERE THUNDERSTORMS WILL BE NEAR...
PEMBROKE PARK...
AVENTURA...
  AND SURROUNDING COMMUNITIES.

SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR
ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS
SPOTTED.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2593 8034 2629 8007 2618 8010 2606 8010
      2594 8011 2593 8022
TIME...MOT...LOC 2335Z 277DEG 40KT 2625 8000 2593 8020

$$

BAXTER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 12, 2:48 PM EST, 3 hours 32 minutes earlier.

Area forecast discussion, Feb 12, 2:48 PM EST, 3 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
248 PM EST FRI FEB 12 2010

.DISCUSSION...

...STRONG WINDS TO CONTINUE INTO THIS EVENING...
...A FEW STRONG TO SEVERE STORMS POSSIBLE THROUGH EARLY THIS EVENING...

SFC LOW PRESSURE OVER THE E CENTRAL GULF JUST WEST OF TAMPA BAY
WILL CONTINUE TO MOVE RAPIDLY ACROSS THE CENTRAL FL PENINSULA THIS
EVENING...DRAGGING A STRONG AND QUICK MOVING COLD FRONT ACROSS THE
REGION. BASED ON TIMING OF THE FRONT AND LOCATION/MVMT OF ASSOCIATED
LTG ACTIVITY OVER THE GULF...IT APPEARS STORMS MAY NOT REACH THE FL
GULF CST UNTIL 4 OR 5 PM BUT THEN QUICKLY MOVE OFFSHORE THE EAST CST
BY 8 OR 9PM. EXPECT THAT THE LINE OF STORMS WILL TRY TO HOLD
TOGETHER DUE TO GRADUALLY DESTABILIZING ATMOSPHERE AND STRONG
DYNAMICS/50-60KT LLJ PROGGED TO MOVE ACROSS THE REGION. THINK A
STRONGLY-FORCED/NARROW/LOW-TOPPED SQUALL LINE IS LIKELY TO MOVE
ACROSS THE RGN WITH 50 TO 70MPH WIND GUSTS BEING THE MAIN THREAT THIS
EVENING...THOUGH LOW-LEVEL HELICITIES ARE QUITE HIGH AND CANNOT
RULE OUT THE THREAT FOR AN ISOLD TORNADO IN THE LINE OR IN ANY
CELLS DVLPG AHEAD OF THE LINE.

THE FRONT WILL CLEAR THE REGION COMPLETELY BY MIDNIGHT AND CLEARING
SKIES WITH STRONG WINDS WILL REMAIN. NW WINDS COULD GUST TO 20-30MPH
ESPECIALLY ACROSS ERN AREAS FOR THE ENTIRE OVERNIGHT PERIOD. GUSTY
WINDS WILL LINGER INTO SAT MORNING BEFORE SFC HIGH PRESSURE BUILDS
TOWARDS THE RGN...ALLOWING WINDS TO DROP OFF QUICKLY DURING THE
AFTRN. MOSTLY CLEAR AND DRY CONDITIONS ARE EXPECTED TO LINGER INTO
MONDAY AS WEAKENING SFC HIGH SETTLES OVER THE FL PENINSULA. THESE
CLEAR SKIES AND LIGHT WINDS WILL LEAD TO EXCELLENT RADIATIONAL
COOLING CONDITIONS SATURDAY NIGHT...AND WITH 1000-850MB THICKNESSES
DROPPING TO JUST BELOW 1320M FREEZING TEMPS SEEM PSBL STILL ACROSS
MAINLY THE LAKE OKEECHOBEE REGION...WITH TEMPS IN THE LOWER 40S
ACROSS THE SE COAST. GIVEN RADIATIONAL COOLING SETUP AND LOW
THICKNESSES...TEMPS COULD DROP NEAR OR JUST ABOVE FREEZING WITH
FROST PSBL IN THE AG AREAS OF THE REDLANDS SW OF MIAMI. SUNDAY NIGHT
WILL BE A FEW DEGREES WARMER IN ALL AREAS AS HIGH CLDS INCRS AND
THICKNESSES INCRS SOME AS WELL.

THE ERN CONUS UPR TROUGH RE-INTENSIFIES SOME ERLY NEXT
WEEK...SENDING A REINFORCING COLD FRONT THROUGH SOUTH FL MONDAY
NIGHT OR EARLY TUESDAY. THIS APPEARS TO BE A DRY FRONT AT THIS TIME.
HOWEVER...WITH CLEARING SKIES BEHIND IT AND A BROAD SFC HIGH BLDG
ACROSS THE DEEP S/FL PENINSULA IT APPEARS THAT SEVERAL COLD NIGHTS
WITH NEAR FREEZING TEMPS MAY BE PSBL IN THE MIDDLE OF THE WEEK. DRY
CONDS SHOULD CONTINUE ACROSS THE RGN BEHIND THIS NEXT FRONT AS WELL.
DAYTIME HIGHS WILL RUN ONLY IN THE 60S TO AROUND 70 DEGREES.

&&

.MARINE...
WILL CONTINUE GALE WARNING AS SFC WINDS SHOULD INCRS TO 30-35KTS
SUSTAINED WITH GUSTS OVER 40KTS PSBL EVEN OUTSIDE OF THUNDERSTORMS
THIS EVENING...MAINLY FROM A S/SWRLY DIRECTION AHEAD OF THE FRONT
SHIFTING TO NW AS IT PASSES. WIND GUSTS OVER 50KTS APPEAR VERY PSBL
IN ANY THUNDERSTORMS. MARINE CONDS WILL BE DANGEROUS WITH SEAS
BUILDING TO 8 OR 9FT TONIGHT WITH THESE SEAS LINGERING THROUGH THE
DAY ON SATURDAY EVEN AS SFC WINDS DECREASE TO 15KTS BY AFTN. EXPECT
LIGHT SFC WINDS THEREAFTER THROUGH MONDAY...WITH NWRLY WINDS INCRSG
ONCE AGAIN BEHIND THE NEXT FRONT MONDAY NIGHT.

&&

.FIRE WEATHER...
RELATIVE HUMIDITIES MAY DROP BELOW 40 PERCENT REGION WIDE
SATURDAY...THEN TO AROUND OR BELOW 35 PERCENT SUNDAY. LATER
FORECASTS WILL BE REFINED AS TO DURATION OF THESE EXPECTED LOW RH'S.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  49  62  38  64 / 50 -  0 -
FORT LAUDERDALE  53  65  43  65 / 60 -  0 -
MIAMI            55  65  44  65 / 70 -  0 -
NAPLES           53  60  40  63 / 30 -  0 -

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...WIND ADVISORY UNTIL 9 PM EST THIS EVENING FOR COASTAL BROWARD-
     COASTAL COLLIER-COASTAL MIAMI DADE-COASTAL PALM BEACH-FAR
     SOUTH MIAMI DADE-GLADES-HENDRY-INLAND BROWARD-INLAND
     COLLIER-INLAND MIAMI DADE-INLAND PALM BEACH-MAINLAND MONROE-
     METRO BROWARD-METRO MIAMI DADE-METRO PALM BEACH.

     SEVERE THUNDERSTORM WATCH UNTIL 10 PM EST THIS EVENING FOR
     COASTAL BROWARD-COASTAL COLLIER-COASTAL MIAMI DADE-COASTAL
     PALM BEACH-FAR SOUTH MIAMI DADE-GLADES-HENDRY-INLAND
     BROWARD-INLAND COLLIER-INLAND MIAMI DADE-INLAND PALM BEACH-
     MAINLAND MONROE-METRO BROWARD-METRO MIAMI DADE-METRO PALM
     BEACH.

AM...SEVERE THUNDERSTORM WATCH UNTIL 10 PM EST THIS EVENING FOR
     BISCAYNE BAY-COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN
     REEF, FL OUT 20 NM-COASTAL WATERS FROM JUPITER INLET TO
     DEERFIELD BEACH, FL OUT 20 NM-LAKE OKEECHOBEE.

     GALE WARNING UNTIL 7 AM EST SATURDAY FOR BISCAYNE BAY-COASTAL
     WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM-
     COASTAL WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL
     OUT 20 NM-LAKE OKEECHOBEE-WATERS FROM DEERFIELD BEACH TO
     OCEAN REEF, FL EXTENDING FROM 20 NM TO THE TERRITORIAL
     WATERS OF THE BAHAMAS-WATERS FROM JUPITER INLET TO
     DEERFIELD BEACH, FL EXTENDING FROM 20 NM TO 60 NM.

GM...SEVERE THUNDERSTORM WATCH UNTIL 10 PM EST THIS EVENING FOR
     COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL OUT 20
     NM-COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL
     OUT 20 NM.

     GALE WARNING UNTIL 7 AM EST SATURDAY FOR COASTAL WATERS FROM
     CHOKOLOSKEE TO BONITA BEACH, FL OUT 20 NM-COASTAL WATERS
     FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL OUT 20 NM-GULF
     WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM
     20 TO 60 NM.

&&

DISCUSSION/MARINE/FIRE WX...STRASSBERG
AVIATION...70/DD

Hazardous weather outlook, Feb 12, 2:53 PM EST, 3 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED
NATIONAL WEATHER SERVICE MIAMI FL
253 PM EST FRI FEB 12 2010

FLZ063-066>075-168-172>174-131100-
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-
253 PM EST FRI FEB 12 2010

...SEVERE THUNDERSTORM WATCH ALL OF SOUTH FLORIDA UNTIL 10 PM EST...
...DAMAGING WIND GUSTS OF 60-70 MPH POSSIBLE...
...GALE WARNING IN EFFECT FOR ALL WATERS UNTIL 7 AM EST SATURDAY...
...WIND ADVISORY ALL SOUTH FL UNTIL 9 PM EST...
...HIGH RISK OF RIP CURRENTS BOTH ATLANTIC AND GULF COASTS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS: A LINE OF STRONG TO POSSIBLY SEVERE SHOWERS AND
THUNDERSTORMS IS EXPECTED TO RACE EASTWARD ACROSS THE AREA THROUGH
THIS EVENING. DAMAGING WIND GUSTS OF 60 TO 70 MPH ARE POSSIBLE
WITH THIS LINE AS IT RACES EAST AT A VERY FAST SPEED OF 50 MPH.
FOR THIS REASON, A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR
ALL OF SOUTH FLORIDA EFFECTIVE UNTIL 10 PM THIS EVENING.

WIND: SHOWERS AND THUNDERSTORMS WILL BE CAPABLE OF PRODUCING
DAMAGING WINDS OF 60 TO 70 MPH THROUGH THIS EVENING. AHEAD OF THE
FRONT, SUSTAINED WINDS OVER THE MAINLAND WILL CONTINUE TO PREVAIL
AT NEAR 25 MPH WITH FREQUENT GUSTS TO AROUND 35 MPH. THUS...A WIND
ADVISORY HAS BEEN ISSUED FOR ALL OF MAINLAND SOUTH FLORIDA
EFFECTIVE UNTIL 9 PM THIS EVENING. SUSTAINED WINDS OF 30 TO 35
KNOTS ARE EXPECTED ON THE LOCAL WATERS THROUGH SATURDAY MORNING,
WITH A GALE WARNING IN EFFECT.

TORNADOES: ALTHOUGH THE PRIMARY IMPACT WITH THE LINE OF SHOWERS AND
STORMS WILL BE STRONG TO SEVERE WIND GUSTS, A BRIEF TORNADO OR
WATERSPOUT CANNOT BE RULED OUT.

RIP CURRENTS: VERY STRONG SOUTHEAST WINDS WILL RESULT IN A HIGH
RISK OF RIP CURRENTS ALONG THE ATLANTIC COAST THROUGH THE EARLY
PORTION OF THE AFTERNOON. WINDS WILL STRENGTHEN AND SHIFT TO
SOUTHWEST BY MID AFTERNOON, WITH A DIMINISHING THREAT FOR RIP
CURRENTS ALONG THE ATLANTIC COAST AND AN INCREASING THREAT FOR RIP
CURRENTS ALONG THE GULF COAST. HIGH SURF MAY ALSO LEAD TO MINOR
COASTAL FLOODING AND BEACH EROSION ALONG THE GULF COAST FROM THIS
AFTERNOON THROUGH EARLY SATURDAY MORNING.

TEMPERATURES: MUCH COLDER AIR WILL BEGIN TO MOVE ACROSS SOUTH
FLORIDA LATE TONIGHT, AS THE COLD FRONT MOVES AWAY FROM THE
LOCAL AREA. THE COMBINATION OF TEMPERATURES FALLING INTO THE LOWER
TO MID 40S AND A NORTHWEST WIND OF 10 TO 15 MPH WILL ALLOW WIND
CHILLS TO FALL INTO THE 40 TO 45 DEGREE RANGE ACROSS MUCH OF
INTERIOR SOUTH FLORIDA, AND INTO THE 35 TO 40 DEGREE RANGE IN THE
REGION WEST OF THE LAKE.

WAVES: GALE FORCE WINDS WILL PERSIST ON THE LOCAL WATERS THROUGH
SATURDAY MORNING, WITH SEAS BUILDING TO 7 TO 9 FEET IN THE GULF
STREAM AND 8 TO 10 FEET IN THE OFFSHORE GULF WATERS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NORTHWEST WINDS WILL SLOWLY SUBSIDE ACROSS SOUTH FLORIDA AND THE
ADJACENT WATERS ON SATURDAY, BUT SMALL CRAFT ADVISORIES WILL
LIKELY STILL BE NEEDED. A COLD AIR MASS WILL LINGER ACROSS THE
REGION ON SATURDAY NIGHT, WITH A PERIOD OF SUBFREEZING
TEMPERATURES POSSIBLE ACROSS GLADES AND HENDRY COUNTIES. WIND
CHILLS WILL LIKELY FALL INTO THE 35 TO 40 DEGREE RANGE ACROSS THE
WESTERN HALF OF THE PENINSULA, WITH 40 TO 45 DEGREE READINGS
EXPECTED ELSEWHERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THROUGH THIS EVENING.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

GREGORIA

In the hours before

Special weather statement, Feb 12, 4:53 PM EST, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
453 PM EST FRI FEB 12 2010

FLZ066-069-070-075-122230-
HENDRY FL-MAINLAND MONROE FL-COASTAL COLLIER COUNTY FL-
INLAND COLLIER COUNTY FL-
453 PM EST FRI FEB 12 2010

...STRONG THUNDERSTORMS MOVING ACROSS THE AREA...

AT 449 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES EAST OF BIG
CORKSCREW ISLAND TO 24 MILES SOUTH OF CAPE ROMANO...MOVING EAST AT 50
MPH.

THESE STORMS WILL AFFECT...

NORTH BLOCKS GOLDEN GATE...
AVE MARIA...
CAPE ROMANO AQUATIC PRESERVE...
BIG CYPRESS ACCESS AREAS OFF ALLIGATOR ALLEY...
CHOKOLOSKEE...
EVERGLADES CITY...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACT WILL BE GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN
DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ON THE ALERT
FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2642 8153 2647 8090 2546 8099 2545 8117
      2551 8122 2555 8120 2565 8128 2570 8128
      2572 8134 2579 8139 2582 8135 2589 8148
      2584 8151 2587 8152 2592 8164 2590 8169
      2584 8168 2592 8174
TIME...MOT...LOC 2151Z 262DEG 41KT 2635 8146 2553 8180

GREGORIA

Special weather statement, Feb 12, 4:53 PM EST, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
453 PM EST FRI FEB 12 2010

FLZ067-068-071-072-168-172-122230-
INLAND PALM BEACH COUNTY FL-METRO PALM BEACH COUNTY FL-
COASTAL PALM BEACH COUNTY FL-INLAND BROWARD COUNTY FL-
METRO BROWARD COUNTY FL-COASTAL BROWARD COUNTY FL-
453 PM EST FRI FEB 12 2010

...STRONG THUNDERSTORMS MOVING INTO THE METRO AREAS OF PALM BEACH
AND NORTHERN BROWARD COUNTIES...

AT 451 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES NORTHWEST OF
NORTH PALM BEACH GENERAL AIRPORT TO MICCOSUKEE SERVICE PLAZA...MOVING
EAST AT 50 MPH.

THESE STORMS WILL AFFECT...

MICCOSUKEE SERVICE PLAZA...
CALOOSA...
PHILO FARMS...
TEQUESTA...
FAU NORTH CAMPUS...
FLORIDA GARDENS...
TURNPIKE...
I-95...
SAWGRASS EXPRESSWAY...
SAWGRASS MILLS MALL...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACT WILL BE GUSTY WINDS OF 40 TO 50 MPH...WHICH CAN
DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ON THE ALERT
FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

FOR ADDITIONAL INFORMATION VISIT THE MIAMI NATIONAL WEATHER SERVICE
WEBSITE AT WWW.WEATHER.GOV/MIAMI.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2678 8002 2678 8005 2676 8003 2666 8002
      2655 8003 2654 8004 2639 8006 2634 8007
      2629 8007 2614 8010 2615 8088 2697 8040
      2697 8007 2682 8002
TIME...MOT...LOC 2151Z 267DEG 42KT 2693 8034 2617 8084

BAXTER

Local storm report, Feb 12, 4:57 PM EST, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
457 PM EST FRI FEB 12 2010

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

0440 PM     TSTM WND GST     NAPLES                  26.14N 81.80W
02/12/2010  E45.00 MPH       COLLIER            FL   TRAINED SPOTTER

            A TRAINED WEATHER SPOTTER REPORTED A WIND GUST OF 45 MPH
            AS A THUNDERSTORM MOVED THROUGH THE AREA. TREE BRANCHES
            THAT WERE AN INCH AND A HALF IN DIAMETER WERE KNOCKED
            DOWN AT THE INTERSECTION OF RADIO ROAD AND DAVIS BLVD.

&&

CARACOZZA

Special weather statement, Feb 12, 5:23 PM EST, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
523 PM EST FRI FEB 12 2010

FLZ066-067-070-071-073-075-174-122245-
HENDRY FL-MAINLAND MONROE FL-INLAND PALM BEACH COUNTY FL-
INLAND COLLIER COUNTY FL-INLAND BROWARD COUNTY FL-FAR SOUTH MIAMI-
DADE COUNTY FL-INLAND MIAMI-DADE FL-
523 PM EST FRI FEB 12 2010

...STRONG THUNDERSTORMS MOVING ACROSS INTERIOR AREAS OF SOUTH
FLORIDA...

AT 521 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES EAST OF
OKEELANTA TO 24 MILES WEST OF NORTHWEST CAPE SABLE...MOVING EAST AT
50 TO 55 MPH.

THESE STORMS WILL AFFECT...

COLLIER/BROWARD LINE AND ALLIGATOR ALLEY...
LOOP ROAD...
DADE-COLLIER TRAINING AIRPORT...
MIDDLE CAPE SABLE...
FORTYMILE BEND...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACT WILL BE GUSTY WINDS UP TO 55 MPH...WHICH CAN DOWN
SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ON THE ALERT
FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2523 8118 2534 8115 2529 8100 2524 8096
      2530 8096 2539 8115 2551 8122 2555 8120
      2571 8130 2664 8070 2666 8027 2614 8040
      2614 8044 2601 8043 2515 8065 2514 8078
      2518 8087 2514 8090 2512 8109
TIME...MOT...LOC 2221Z 257DEG 54KT 2658 8065 2518 8154

BAXTER/DAN

Special weather statement, Feb 12, 5:41 PM EST, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
541 PM EST FRI FEB 12 2010

FLZ067-068-070>075-168-172>174-122330-
MAINLAND MONROE FL-INLAND PALM BEACH COUNTY FL-
METRO PALM BEACH COUNTY FL-COASTAL PALM BEACH COUNTY FL-
INLAND COLLIER COUNTY FL-INLAND BROWARD COUNTY FL-
METRO BROWARD COUNTY FL-FAR SOUTH MIAMI-DADE COUNTY FL-
METROPOLITAN MIAMI DADE FL-INLAND MIAMI-DADE FL-
COASTAL BROWARD COUNTY FL-COASTAL MIAMI-DADE COUNTY FL-
541 PM EST FRI FEB 12 2010

...STRONG THUNDERSTORMS MOVING INTO EAST COAST METRO AREAS OF SOUTH
FLORIDA...

AT 538 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROYAL PALM BEACH TO
6 MILES WEST OF NORTHWEST CAPE SABLE...MOVING EAST AT 55 TO 60 MPH.

THESE STORMS WILL AFFECT...

THE ACREAGE...
FORTYMILE BEND...
ABERDEEN...
ATLANTIS...
BOCA WEST...
BOCA RATON...
MIAMI...
FORT LAUDERDALE...
WEST PALM BEACH...
HOMESTEAD...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACT WILL BE GUSTY WINDS UP TO 55 MPH...WHICH CAN DOWN
SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ON THE ALERT
FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2582 8011 2567 8015 2567 8016 2574 8017
      2550 8033 2540 8032 2539 8023 2553 8018
      2553 8017 2536 8023 2539 8029 2516 8065
      2516 8115 2535 8114 2524 8096 2533 8097
      2539 8115 2680 8029 2678 8004
TIME...MOT...LOC 2239Z 257DEG 54KT 2675 8023 2524 8126

BAXTER/DAN

Special weather statement, Feb 12, 6:06 PM EST, 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
606 PM EST FRI FEB 12 2010

FLZ071>075-172>174-122330-
MAINLAND MONROE FL-INLAND BROWARD COUNTY FL-METRO BROWARD COUNTY FL-
FAR SOUTH MIAMI-DADE COUNTY FL-METROPOLITAN MIAMI DADE FL-
INLAND MIAMI-DADE FL-COASTAL BROWARD COUNTY FL-COASTAL MIAMI-
DADE COUNTY FL-
606 PM EST FRI FEB 12 2010

...STRONG THUNDERSTORMS MOVING ACROSS BROWARD AND MIAMI-DADE
COUNTIES...

AT 602 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CAPABLE OF PRODUCING STRONG WIND GUSTS OF 45 TO
55 MPH...EXTENDING ALONG A LINE FROM 9 MILES WEST OF CORAL SPRINGS
TO 10 MILES NORTHEAST OF SHARK VALLEY OBS TOWER TO CAPE
SABLE...MOVING EAST AT 50 MPH.

THESE STORMS WILL AFFECT...

EAST TOLL GATE ON ALLIGATOR ALLEY...
INTERSECTION U.S. 27 PINES BLVD...
CORAL SPRINGS...
COCONUT CREEK...
COOPER CITY...
FORT LAUDERDALE...
MIAMI...
DORAL...
HOMESTEAD...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACT WILL BE GUSTY WINDS OF UP TO 55 MPH...WHICH CAN
DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW AROUND UNSECURED SMALL
OBJECTS. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES.

A STORM LOCATED ABOUT 5 MILES NORTHWEST OF THE MICCOSUKEE RESORT IS
SHOWING SIGNS OF ROTATION AND DEVELOPING IN AN ENVIRONMENT FAVORABLE
FOR TORNADOES.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ON THE ALERT
FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EST
FRIDAY EVENING FOR SOUTHERN FLORIDA.

LAT...LON 2567 8015 2567 8016 2574 8017 2550 8033
      2540 8032 2539 8023 2553 8018 2553 8017
      2536 8023 2539 8029 2514 8066 2518 8087
      2512 8109 2522 8116 2530 8110 2524 8096
      2535 8106 2575 8075 2632 8046 2629 8007
TIME...MOT...LOC 2303Z 266DEG 41KT 2631 8040 2575 8064
          2519 8109

GREGORIA

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 12, 3:29 AM EST	Gale Warning	MFL		27 hr
Feb 12, 2:18 PM EST	Wind Advisory	MFL	Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more	5 hr
Feb 12, 3:46 PM EST	Special Weather Statement	MFL	Collier	44 min
Feb 12, 4:28 PM EST	Special Weather Statement	MFL	Collier	32 min
Feb 12, 4:37 PM EST	Special Weather Statement	MFL	Broward, Palm Beach	38 min
Feb 12, 4:53 PM EST	Special Weather Statement	MFL	Collier, Monroe	37 min
Feb 12, 5:23 PM EST	Special Weather Statement	MFL	Broward, Monroe, Palm Beach	22 min
Feb 12, 5:41 PM EST	Special Weather Statement	MFL	Broward, Miami-Dade, Monroe	49 min
Feb 12, 6:06 PM EST	Special Weather Statement	MFL	Broward, Miami-Dade	24 min
Feb 12, 6:12 PM EST	Severe Thunderstorm Warning	MFL	Miami-Dade	33 min
Feb 12, 6:27 PM EST	Special Marine Warning	MFL		48 min
Feb 12, 6:27 PM EST	Severe Thunderstorm Warning	MFL	Miami-Dade, Monroe	33 min
Feb 12, 6:55 PM EST	Special Marine Warning	MFL		65 min

Nearby

Severe Thunderstorm Warnings in Florida, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.