Alert archive / Florida / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 42, NWS Miami, FL

June 6, 2010Palm Beach County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 6, 2010, 7:43 PM EDT for Palm Beach County, Florida. It was in force for 20 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
Jun 6, 2010, 7:43 PM EDT (23:43 UTC)
Expired
Jun 6, 2010, 8:03 PM EDT
In force
20 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 115 km from the middle of the area, began a volume at 23:46 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.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 11.7 hours before the alert went out and 93 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-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2010-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1599 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2010-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1599 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1034 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

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 Jun 6, 1:44 PM EDT, 5 hours 59 minutes earlier.

Area forecast discussion, Jun 6, 1:44 PM EDT, 5 hours 59 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
144 PM EDT SUN JUN 6 2010

.DISCUSSION...THE MID/UPPER LEVEL HIGH PRESSURE THAT HAS BEEN
PARKED OVER THE AREA WILL RETREAT WEST A BIT AND ALLOW A WEAK COLD
FRONTAL TROUGH CURRENTLY MOVING INTO THE TN. VALLEY TO MOVE INTO
SOUTH FLORIDA ON TUESDAY WHERE IT WILL DISSIPATE BY THURSDAY.
ANYHOW, THE MID LEVEL HIGH PRESSURE WILL BUILD BACK OVER THE AREA
WEDNESDAY. WITH THE FRONTAL TROUGH APPROACHING ON MONDAY, WESTERLY
FLOW WILL TAKE OVER WITH POSSIBLY A SEABREEZE PINNED NEAR THE COAST.
BUT WITH THE FRONT GETTING CLOSER, WE WILL SEE NUMEROUS ACTIVITY
ON MONDAY WHICH WILL BE A BIT HIGHER THAN TODAY'S 50% POPS. SOME
STORMS MAY BE STRONG TODAY AND MONDAY WITH GUSTY WINDS AND LOCALLY
HEAVY RAINFALL. HIGH TEMPERATURES WILL STILL BE IN THE LOWER TO
MID 90S THROUGH THE WEEK EVEN WITH THE FRONTAL TROUGH IN THE AREA,
BUT POSSIBLY A BIT OF RELIEF AT THE ATLANTIC COAST WITH SOME SITES
BELOW 90 TUESDAY THROUGH THURSDAY BUT THEN THE EASTERLIES RETURN.
NORMAL SCATTERED POPS CAN BE EXPECTED TUESDAY ON.

&&

.AVIATION...LOOKS LIKE LITTLE HAS CHANGED THIS CYCLE. THINK SHRA/TS
WILL DEVELOP INTERIOR AND MOV SE NEAR THE E CST TERMINALS THROUGH
AROUND 00Z. CONFIDENCE REMAINS LOW AS COVERAGE WILL BE SCT OR LESS
BUT A BRIEF MVFR OR EVEN IFR CIG/VSBY POSSIBLE. OTHERWISE VFR
THROUGH THE PERIOD. SEA BREEZES ALONG BOTH COASTS WILL MAINTAIN
ONSHORE WIND FLOW AT ALL TERMINALS BEFORE BECOMING LIGHT AND
VRB/03KT AFT 02Z.

&&

.MARINE...TRANQUIL CONDITIONS WITH RATHER LIGHT WINDS WILL
CONTINUE...EXCEPT IN AND NEAR THUNDERSTORMS.

&&

.FIRE WEATHER...NO CONCERNS HERE AS THE MINIMUM RH'S WILL BE ABOVE
CRITICAL VALUES.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  76  92  75  89 / 40 60 30 40
FORT LAUDERDALE  78  92  77  90 / 40 60 30 40
MIAMI            75  92  77  91 / 40 60 30 40
NAPLES           78  91  77  90 / 10 40 20 40

&&

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

LONG TERM...18/GR
SHORT TERM/AVIATION...30/KOB
Hazardous weather outlook, Jun 6, 4:00 AM EDT, 15 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
400 AM EDT SUN JUN 6 2010

FLZ063-066>075-168-172>174-062200-
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-
400 AM EDT SUN JUN 6 2010

...STRONG THUNDERSTORMS POSSIBLE INTERIOR AND EAST TODAY...
...HEAT INDEX VALUES BETWEEN 105 TO 110 TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: SCATTERED AFTERNOON THUNDERSTORMS WILL OCCUR ACROSS
MOST OF SOUTH FLORIDA TODAY. CLOUD TO SURFACE LIGHTNING STRIKES WILL
BE THE PRIMARY HAZARD, ALTHOUGH GUSTY WINDS AND LOCALLY HEAVY RAIN
CAN BE EXPECTED ALONG WITH POSSIBLE SMALL HAIL.

LIGHTNING: A MODERATE RISK OF LIGHTNING WILL BE GENERALLY EXPECTED
OVER MOST OF SOUTH FLORIDA DUE TO THE SCATTERED THUNDERSTORMS. NO
RISK IS EXPECTED ALONG THE IMMEDIATE WEST COAST.

FLOOD: LOCALLY HEAVY RAINS MAY LEAD TO LOCALIZED FLOODING IN LOW
LYING AND FLOOD PRONE AREAS.

WIND: WINDS GUSTS NEAR 60 MPH MAY OCCUR IN THE ANY OF THE STRONGER
THUNDERSTORMS.

TEMPERATURE: HEAT INDEX VALUES, THE APPARENT TEMPERATURES, MAY RANGE
FROM 105 TO 109 DEGREES THIS AFTERNOON ACROSS MOST OF SOUTH FLORIDA
THIS AFTERNOON. THE HEAT INDEX MAY POSSIBLY BE UP 110 IN SOUTH
CENTRAL MIAMI DADE COUNTY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A DAILY CHANCE OF MAINLY AFTERNOON THUNDERSTORMS CAN BE EXPECTED
OVER ALL AREAS. HEAT INDEX VALUES WILL AGAIN RANGE BETWEEN 105-109
FOR MOST OF SOUTH FLORIDA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION 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, Jun 6, 6:26 PM EDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
626 PM EDT SUN JUN 6 2010

FLZ072-172-062315-
METRO BROWARD COUNTY FL-COASTAL BROWARD COUNTY FL-
626 PM EDT SUN JUN 6 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUE FOR EAST CENTRAL
BROWARD COUNTY FOR FREQUENT TO EXCESSIVE LIGHTNING....

AT 624 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM COCONUT CREEK TO
LAUDERHILL...MOVING EAST AT 10 MPH.

THESE STORMS WILL AFFECT...

LAUDERDALE LAKES...
NORTH POMPANO BEACH...
FORT LAUDERDALE...
POMPANO BEACH AIRPORT...
LIGHTHOUSE POINT...
FORT LAUDERDALE BEACH...

AND SURROUNDING COMMUNITIES.

THE MAIN IMPACT WILL BE FREQUENT TO EXCESSIVE LIGHTNING. LIGHTNING IS
THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN
SHELTERS OFFER NO PROTECTION. 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 2622 8009 2618 8010 2606 8010 2605 8011
      2609 8025 2630 8021 2629 8008
TIME...MOT...LOC 2226Z 277DEG 8KT 2625 8018 2614 8020

BAXTER
Special weather statement, Jun 6, 6:29 PM EDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
629 PM EDT SUN JUN 6 2010

FLZ068-168-062315-
METRO PALM BEACH COUNTY FL-COASTAL PALM BEACH COUNTY FL-
629 PM EDT SUN JUN 6 2010

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

AT 624 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
A STRONG THUNDERSTORM NEAR NORTH PALM BEACH...MOVING SOUTH AT 10 MPH.

THIS STORM WILL AFFECT...

RIVIERA BEACH...
MANGONIA PARK...
WEST PALM BEACH...

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.

RESIDENTS NEAR THE PATH OF THIS STORM 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.

LAT...LON 2675 8003 2663 8003 2662 8020 2686 8015
      2685 8007 2686 8007 2685 8004 2681 8002
      2677 8003 2678 8004 2677 8005 2677 8004
      2676 8003
TIME...MOT...LOC 2229Z 356DEG 8KT 2680 8008

BAXTER
Local storm report, Jun 6, 7:16 PM EDT, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
716 PM EDT SUN JUN 06 2010

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

0710 PM     HAIL             WEST PALM BEACH         26.71N 80.06W
06/06/2010  E0.88 INCH       PALM BEACH         FL   BROADCAST MEDIA

            A THUNDERSTORM WAS PRODUCING DIME SIZED HAIL IN WEST PALM
            BEACH JUST WEST OF INTERSTATE 95.

&&

CARACOZZA
Local storm report, Jun 6, 7:20 PM EDT, 23 minutes before
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Special weather statement, Jun 6, 7:37 PM EDT, 6 minutes before
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Local storm report, Jun 6, 7:40 PM EDT, 3 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 8:35 PM EDTSpecial Weather StatementMFLMiami-Dade40 min
Jun 6, 3:37 PM EDTSpecial Weather StatementMFLMonroe38 min
Jun 6, 4:02 PM EDTSpecial Weather StatementMFLCollier43 min
Jun 6, 4:36 PM EDTSpecial Weather StatementMFLHendry54 min
Jun 6, 4:55 PM EDTSpecial Weather StatementMFLMonroe50 min
Jun 6, 6:16 PM EDTSpecial Weather StatementMFLBroward44 min
Jun 6, 6:26 PM EDTSpecial Weather StatementMFLBroward49 min
Jun 6, 6:29 PM EDTSpecial Weather StatementMFLPalm Beach46 min
Jun 6, 7:05 PM EDTSevere Thunderstorm WarningMFLPalm Beach25 min
Jun 6, 7:33 PM EDTSpecial Marine WarningMFL57 min
Jun 6, 7:37 PM EDTSpecial Weather StatementMFLPalm Beach38 min
Jun 6, 7:58 PM EDTAreal Flood AdvisoryMFLPalm Beach2 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2010Every 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.