Alert archive / Florida / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 31, NWS Miami, FL

May 18, 2010Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 18, 2010, 4:15 PM EDT for Broward County, Miami-Dade County, Florida. It was in force for 21 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 18, 2010, 4:15 PM EDT (20:15 UTC)
Expired: May 18, 2010, 4:36 PM EDT
In force: 21 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

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

The radar

The Miami radar (KAMX), 31 km from the middle of the area, began a volume at 20:15 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.

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 May 18, 2:21 PM EDT, 1 hour 54 minutes earlier.

Area forecast discussion, May 18, 2:21 PM EDT, 1 hour 54 minutes before

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Hazardous weather outlook, May 18, 10:08 AM EDT, 6 hours 7 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
1008 AM EDT TUE MAY 18 2010

FLZ063-066>075-168-172>174-190515-
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-
1008 AM EDT TUE MAY 18 2010

...A FEW WATERSPOUTS POSSIBLE COASTAL WATERS...
...A FEW STRONG THUNDERSTORMS POSSIBLE INTERIOR AND EAST COAST TODAY...
...SLIGHT RISK OF RIP CURRENTS ATLANTIC COAST...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

RIP CURRENTS: THERE IS A SLIGHT RISK OF RIP CURRENTS ALONG THE
ATLANTIC COAST BEACHES TODAY, DESPITE LOW LEVEL WINDS SHIFTING
TO THE SOUTH AND DECREASING TO LESS THAN 10 MPH.

THUNDERSTORMS: THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF SOUTH
FLORIDA AND THE ADJACENT WATERS TODAY, WITH THE HIGHEST CHANCES
OF OCCURRENCE ACROSS THE EASTERN HALF OF THE PENINSULA AND
ATLANTIC WATERS. FREQUENT TO EXCESSIVE CLOUD TO SURFACE LIGHTNING
STRIKES, GUSTY WINDS TO 50 MPH, SMALL HAIL, AND LOCALLY HEAVY RAINFALL
WILL BE POSSIBLE WITH THIS ACTIVITY.

WATERSPOUTS: ATMOSPHERIC CONDITIONS APPEAR QUITE FAVORABLE FOR THE
FORMATION OF A FEW WATERSPOUTS THIS MORNING OVER THE LOCAL GULF
AND ATLANTIC WATERS.

WIND: THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS
TO 50 MPH.

HAIL: THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL
UP TO PENNY SIZE.

FLOODING: THERE COULD BE SOME MINOR STREET FLOODING IN THE EAST
COAST METROPOLITAN AREA WITH THE STRONGEST STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A SLIGHT CHANCE OF MAINLY AFTERNOON AND EARLY EVENING
THUNDERSTORMS ACROSS THE EASTERN HALF OF THE AREA ON WEDNESDAY
AND THURSDAY, AND ACROSS THE GULF COAST AND REGION NEAR LAKE
OKEECHOBEE ON FRIDAY. LIGHTNING STRIKES, GUSTY WINDS, AND LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE.

.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.

In the hours before

Special weather statement, May 18, 3:09 PM EDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
309 PM EDT TUE MAY 18 2010

FLZ072-172-181945-
METRO BROWARD COUNTY FL-COASTAL BROWARD COUNTY FL-
309 PM EDT TUE MAY 18 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
BROWARD COUNTY FOR GUSTY WINDS TO 45 MPH AND FUNNEL CLOUDS...

AT 306 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
A STRONG THUNDERSTORM NEAR COCONUT CREEK...MOVING SOUTHEAST AT 5 MPH.
A STORM SPOTTER REPORTED A BRIEF FUNNEL CLOUD WITHIN THIS STORM...BUT
WITH NO TOUCH DOWN.

THIS STORM WILL AFFECT...

NORTH POMPANO BEACH...
POMPANO BEACH AIRPORT...
POMPANO BEACH...

AND SURROUNDING COMMUNITIES.

ALSO...THIS STORM IS DEVELOPING IN AN ENVIRONMENT FAVORABLE FOR
FUNNEL CLOUDS.

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

LAT...LON 2628 8007 2627 8008 2626 8008 2617 8012
      2623 8023 2632 8016 2631 8007 2629 8007
TIME...MOT...LOC 1908Z 314DEG 6KT 2625 8017

GREGORIA

Special weather statement, May 18, 3:38 PM EDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
338 PM EDT TUE MAY 18 2010

FLZ073-182000-
INLAND MIAMI-DADE FL-
338 PM EDT TUE MAY 18 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR INLAND
MIAMI-DADE COUNTY FOR 45 TO 55 MPH WINDS...

AT 332 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
A STRONG THUNDERSTORM 5 MILES EAST OF FORTYMILE BEND...MOVING EAST AT
15 MPH. A WIND GUST OF 45 MPH WAS JUST RECENTLY REPORTED AT
MICCOSUKEE SCHOOL.

THIS STORM WILL AFFECT...

  MICCOSUKEE...
  TAMIAMI TRAIL OVER RURAL MIAMI-DADE COUNTY...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

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

LAT...LON 2586 8058 2562 8057 2559 8084 2585 8084
TIME...MOT...LOC 1935Z 275DEG 11KT 2575 8074

GREGORIA

Special weather statement, May 18, 3:53 PM EDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
353 PM EDT TUE MAY 18 2010

FLZ072-172-182000-
METRO BROWARD COUNTY FL-COASTAL BROWARD COUNTY FL-
353 PM EDT TUE MAY 18 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EAST CENTRAL
BROWARD COUNTY FOR FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY WINDS
FROM 45 T0 55 MPH...

AT 349 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
STRONG THUNDERSTORMS STRETCHING FROM LAUDERHILL TO OAKLAND
PARK...MOVING SOUTHEAST AT 10 MPH.

THIS STORM WILL AFFECT...

WILTON MANORS...
FORT LAUDERDALE...

AND SURROUNDING COMMUNITIES.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

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

LAT...LON 2618 8010 2610 8010 2604 8011 2602 8020
      2614 8023 2622 8011 2620 8009
TIME...MOT...LOC 1952Z 332DEG 10KT 2614 8015

GREGORIA

Special weather statement, May 18, 4:03 PM EDT, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
403 PM EDT TUE MAY 18 2010

FLZ072-172-182030-
METRO BROWARD COUNTY FL-COASTAL BROWARD COUNTY FL-
403 PM EDT TUE MAY 18 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EAST CENTRAL
AND SOUTHEASTERN BROWARD COUNTY FOR FREQUENT TO EXCESSIVE
LIGHTNING...GUSTY WINDS FROM 45 T0 55 MPH...UP TO PENNY SIZED HAIL...

AT 358 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LAUDERDALE BY THE
SEA TO LAUDERHILL...MOVING SOUTH AT 10 MPH.

THESE STORMS WILL AFFECT...

WILTON MANORS...
FORT LAUDERDALE...
DOWNTOWN-DAVIE...
INTERSECTION I-595 AND I-95...
PORT EVERGLADES...
DANIA BEACH...

AND SURROUNDING COMMUNITIES.

FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS FROM 45 T0 55 MPH...UP
TO NICKEL-SIZED HAIL...TORRENTIAL DOWNPOURS...OR A COMBINATION OF
THESE ARE POSSIBLE. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

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

LAT...LON 2618 8010 2610 8010 2598 8011 2598 8025
      2611 8025 2621 8010 2620 8009
TIME...MOT...LOC 2002Z 359DEG 9KT 2616 8010 2610 8020

GREGORIA

Special weather statement, May 18, 4:08 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
408 PM EDT TUE MAY 18 2010

FLZ073-182045-
INLAND MIAMI-DADE FL-
408 PM EDT TUE MAY 18 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR THE EVERGLADES
NATIONAL PARK FOR FREQUENT TO EXCESSIVE LIGHTNING...GUSTY WINDS FROM
45 T0 55 MPH...

AT 402 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
A STRONG THUNDERSTORM NEAR SHARK VALLEY OBS TOWER...MOVING SOUTH AT
10 MPH.

THIS STORM WILL AFFECT...

  THE EVERGLADES NATIONAL NATIONAL PARK NORTH OF THE PA-HAY OKEE
OVERLOOK AND THE ROYAL PALM RANGER STATION.

THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH. LIGHTNING IS THE NUMBER ONE WEATHER RELATED
KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. 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.

LAT...LON 2552 8051 2546 8081 2569 8085 2576 8062
TIME...MOT...LOC 2005Z 339DEG 10KT 2564 8072

TINGLER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 8:04 PM EDT	Special Marine Warning	MFL		42 min
May 18, 4:05 AM EDT	Dense Fog Advisory	MFL	Broward, Collier, Hendry, Palm Beach	5 hr
May 18, 5:19 AM EDT	Special Marine Warning	MFL		56 min
May 18, 3:09 PM EDT	Special Weather Statement	MFL	Broward	36 min
May 18, 3:38 PM EDT	Special Weather Statement	MFL	Miami-Dade	22 min
May 18, 3:53 PM EDT	Special Weather Statement	MFL	Broward	7 min
May 18, 4:03 PM EDT	Special Weather Statement	MFL	Broward	27 min
May 18, 4:08 PM EDT	Special Weather Statement	MFL	Miami-Dade	37 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; radar from the NEXRAD Level II archive.