Alert archive / Florida / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 43, NWS Melbourne, FL

June 12, 2007Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 12, 2007, 4:08 PM EDT for Saint Lucie County, Florida. It was in force for 52 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
Jun 12, 2007, 4:08 PM EDT (20:08 UTC)
Expired
Jun 12, 2007, 5:00 PM EDT
In force
52 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 83 km from the middle of the area, began a volume at 20:08 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.

IssuedProductOfficeLasted
Jun 12, 11:30 AM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 8.1 hours before the alert went out and 121 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, Cape Canaveral, FL at 12:00Z on 2007-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 816 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, Cape Canaveral, FL at 12:00Z on 2007-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.193958Sfc1 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
816 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 122009
SVRMLB
FLC111-122100-
/O.NEW.KMLB.SV.W.0043.070612T2008Z-070612T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
408 PM EDT TUE JUN 12 2007

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
   ST. LUCIE COUNTY IN FLORIDA.

* UNTIL 500 PM EDT

* AT 405 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  NORTHWEST OF WHITE CITY...AND MOVING SOUTH AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... 
WHITE CITY...PORT SAINT LUCIE

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 2750 8043 2748 8060 2722 8064 2721 8027

$$

KELLY
2 follow-up statements
000 
WWUS52 KMLB 122030
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
430 PM EDT TUE JUN 12 2007

FLC111-122100-
/O.CON.KMLB.SV.W.0043.000000T0000Z-070612T2100Z/
ST. LUCIE FL-
430 PM EDT TUE JUN 12 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR ST. LUCIE COUNTY...

AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES SOUTHWEST OF PORT
SAINT LUCIE...MOVING SOUTH AT 30 MPH.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
TUESDAY EVENING FOR EAST CENTRAL FLORIDA.

LAT...LON 2750 8043 2748 8060 2707 8063 2721 8027

$$

67
000 
WWUS52 KMLB 122058
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
458 PM EDT TUE JUN 12 2007

FLC111-122108-
/O.EXP.KMLB.SV.W.0043.000000T0000Z-070612T2100Z/
ST. LUCIE FL-
458 PM EDT TUE JUN 12 2007

...THE SEVERE THUNDERSTORM WARNING FOR ST. LUCIE COUNTY EXPIRES AT
500 PM EDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM
THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED THE WARNING AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 2750 8043 2748 8060 2707 8063 2721 8027

$$

67

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 Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 12, 2:40 PM EDT, 1 hour 28 minutes earlier.

Area forecast discussion, Jun 12, 2:40 PM EDT, 1 hour 28 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
240 PM EDT TUE JUN 12 2007

.DISCUSSION...PRIMARY CONVECTIVE OUTFLOW BOUNDARY CURRENTLY ACROSS
CENTRAL CWA WILL CONTINUE TO DROP SOUTHWARD AND INTERACT WITH
LAKE/SEA BREEZE BOUNDARIES ACROSS SOUTHERN CWA THROUGH LATE
AFTERNOON. INSTABILITY AND LIFT REMAIN FAVORABLE FOR ISOLATED SVR
WIND GUSTS ALONG/AHEAD OF GUST FRONT WITH WIND/HAIL THREAT NEAR ANY
DEEP CONVECTION WHICH DEVELOPS AHEAD OF THIS FEATURE.

FARTHER UPSTREAM...PVA REMAINS IN PLACE AS VORT LOBE DROPS SOUTHWARD
AND OFFSHORE OVERNIGHT. SHORT-RANGE MODELS REMAIN CONSISTENT WITH
WEAK SURFACE LOW FORMATION OVERNIGHT ACROSS THE COASTAL WATERS WITH
ASSOCIATED SURFACE BOUNDARY WORKING DOWN TO LAKE OKEECHOBEE REGION
LATE TONIGHT. ADDITIONAL SCATTERED STORMS WILL REMAIN POSSIBLE FROM
NORTH TO SOUTH...MAINLY THE FIRST HALF OF TONIGHT. WILL INDICATE
POPS NEAR 40 PERCENT TONIGHT.

WED-THU...UPPER TROUGH AXIS ALONG THE MID ATLC SEABOARD FORECAST TO
DIG SOUTH OVER FL WED AFTN. FORCING ASCD WITH THIS UPR FEATURE AND
JET ENERGY ALOFT DEVELOPS SFC LOW EAST OF THE STATE AND QUICKLY
MOVES FEATURE NE DURING THE DAY. COLD POOL ALOFT OVER REGION
COMBINED WITH AFTN INSTABILITY WILL SPARK ANOTHER ROUND OF AFTERNOON
STORMS. STEEPER LAPSE RATES PROVIDED BY COOLER TEMPS ALOFT MAY
PRODUCE SOME STRONG STORMS ALONG WITH HAIL. SHOWERS MAINLY TIED TO
HEATING WILL DIMINISH WED EVE WITH ONSHORE FLOW PROVIDING STABLE
MORE CONDITIONS INTO THU. HAVE TRIMMED POPS FOR THU BASED ON LOWER
PWAT AND LOWER FORCING IN AFTN.

EXTENDED...TRANSITION LATE IN THE WEEK WITH SCT STORM COVERAGE EACH
AFTERNOON INTO EARLY NEXT WEEK AS HIGHER MOISTURE SOUTH OF AREA
MIGRATES BACK TO THE NORTH. EXPECTING SEASONAL TEMPS AND POPS
THROUGH PERIOD.

&&

.AVIATION...BRIEF IFR CONDITIONS WITH STRONG WIND GUSTS/SHEAR LIKELY
ALONG/AHEAD OF OUTFLOW BOUNDARY...AFFECTING KMLB/KVRB DURING NEXT
FEW HOURS. OTHERWISE...ADDITIONAL SCATTERED STORMS POSSIBLE
OVERNIGHT...WITH TIMING DIFFICULT WILL JUST INDICATE VCTS THIS
EVENING.

&&

.MARINE...MINIMAL WIND/SEAS OUTSIDE CONVECTION. ISOLATED STRONG
STORMS DROPPING SOUTHWARD ACROSS COASTAL WATERS THIS EVENING WILL
PRODUCE LOCALLY HIGH WINDS AND SEAS AND POSSIBLY A WATERSPOUT. LOW
DEVELOPMENT EAST OF AREA WITH ONSHORE WIND TENDENCY WILL INCREASE
WIND WAVE AND EVENTUALLY SWELL DEPENDING ON LOW POSITION.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...SEVERE THUNDERSTORM WATCH FOR ALL OF EAST CENTRAL FLORIDA UNTIL
     7 PM EDT.
AM...SEVERE THUNDERSTORM WATCH FOR 0-20 NM FROM THE COAST FLAGLER
     BEACH TO JUPITER INLET UNTIL 7 PM EDT.

&&

SHORT TERM/AVIATION...SPRATT
LONG TERM/FIRE WX....PENDERGRAST
SVR WX/RADAR...KELLY/SHARP
Hazardous weather outlook, Jun 12, 12:20 PM EDT, 3 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1220 PM EDT TUE JUN 12 2007

AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147-
130430-
COASTAL WATERS FROM FLAGLER BEACH TO COCOA BEACH OUT 20 NM-
COASTAL WATERS FROM COCOA BEACH TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO COCOA BEACH 20 TO 60 NM OFFSHORE-
WATERS FROM COCOA BEACH TO JUPITER INLET 20 TO 60 NM OFFSHORE-
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
1220 PM EDT TUE JUN 12 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

...THUNDERSTORM IMPACT...

...SEVERE THUNDERSTORMS EXPECTED THIS AFTERNOON AND EVENING...

A SIGNIFICANT THREAT FOR SEVERE THUNDERSTORMS EXISTS THIS
AFTERNOON ACROSS THE FORECAST AREA BRINING A MODERATE IMPACT TO
LOCAL RESIDENTS...BUSINESSES...AND VISITORS. AS A RESULT...A
SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR ALL OF EAST CENTRAL
FLORIDA AND THE ADJACENT COASTAL WATERS THROUGH 7 PM THIS EVENING.

SUFFICIENT MOISTURE COUPLED WITH THE AFTERNOON SEA AND LAKE
BREEZES AND AN APPROACHING UPPER LEVEL DISTURBANCE WILL RESULT IN
NUMEROUS STRONG THUNDERSTORMS WITH FREQUENT TO EXCESSIVE
LIGHTNING. SEVERAL ARE EXPECTED TO BECOME SEVERE WITH LOCAL WIND
GUSTS IN EXCESS OF 58 MPH. ALTHOUGH A SIGNIFICANT THREAT IS
PRESENT FOR THE ENTIRE AREA...THE CHANCE FOR SEVERE WEATHER IS
GREATEST ACROSS VOLUSIA AND BREVARD COUNTIES. THE COLDER
TEMPERATURES ALOFT AND INCREASING MID LEVEL WINDS HAVE ALSO
ENHANCED THE THREAT FOR LARGE HAIL...AND ISOLATED BRIEF
TORNADOES OR WATERSPOUTS. MOVEMENT WILL BE SOUTHEAST AT 30 MPH.

PEOPLE ARE URGED TO REMAIN INFORMED OF THE LATEST WEATHER
SITUATION FOR THE REST OF THE DAY. BE READY TO TAKE ACTION IF A
WARNING IS ISSUED FOR YOUR LOCATION. THOSE WORKING OR RECREATING
OUTDOORS SHOULD PAY SPECIAL ATTENTION TO THE NORTHERN SKIES.

REMEMBER...LIGHTNING IS OFTEN THE FIRST HAZARD TO ARRIVE AND THE
LAST TO LEAVE AN AREA.

...FLOOD IMPACT...
GIVEN THE SERIES OF LOCALLY HEAVY RAINFALL THAT HAS OCCURRED OVER
PARTS OF THE AREA SINCE THE BEGINNING OF THE MONTH...MANY
LOCATIONS ARE BECOMING MORE SUSCEPTIBLE TO TEMPORARY
FLOODING...ESPECIALLY IN POORLY DRAINED LOW LYING AREAS. STORMS
TODAY WILL BE CAPABLE OF PRODUCING IN EXCESS IF TWO INCHES OF
RAINFALL IN ONE HOUR...WHICH COULD RESULT IN LOCALIZED FLOODING.

...MARINE THUNDERSTORM GUST IMPACT...
STRONG TO SEVERE THUNDERSTORMS WILL MOVE RAPIDLY SOUTHWARD DURING
THE EARLY AFTERNOON AND REACH THE COASTAL WATERS FROM FLAGLER
BEACH TO COCOA BEACH BY NOON. THE STORMS WILL PUSH SOUTH
THROUGHOUT THE AFTERNOON...WITH THE MORE INTENSE STORMS SLIDING
OFFSHORE TO IMPACT THE INTRA COASTALS AND NEAR SHORE WATERS. THIS
INCLUDES THE PORTS AND INLETS. LOCALLY HIGH SEAS...FREQUENT TO
EXCESSIVE LIGHTNING...AND HAIL ARE EXPECTED TODAY. THE GREATEST
THREAT FOR STORMS OVER THE ATLANTIC APPEARS TO BE NORTH OF
SEBASTIAN INLET. MOVEMENT WILL BE SOUTHEAST AT 25 TO 30 KNOTS.

...WATERSPOUT IMPACT...
A SIGNIFICANT THREAT EXISTS FOR BRIEF TORNADIC WATERSPOUTS ALONG
THE COASTAL ZONE...ESPECIALLY FROM FLAGLER BEACH TO SEBASTIAN INLET.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
STRONG TO SEVERE STORMS ARE EXPECTED AGAIN ON WEDNESDAY...WITH
DECREASING COVERAGE OF STORMS FORECAST FROM THURSDAY INTO THIS
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

FORMAL ACTIVATION IS LIKELY. THE NATIONAL WEATHER SERVICE MAY
NEED A PCARS RADIO OPERATOR.

DWS

In the hours before

Special weather statement, Jun 12, 1:52 PM EDT, 2 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
152 PM EDT TUE JUN 12 2007

FLZ144-121830-
SOUTHERN LAKE COUNTY-
152 PM EDT TUE JUN 12 2007

...STRONG THUNDERSTORMS AFFECTING SOUTHERN LAKE COUNTY...

AT 143 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG STORM OVER CLERMONT...MOVING SOUTHEAST AT 25 MPH. OTHER
STRONG STORMS WILL DEVELOP OVER...OR MOVE INTO...SOUTHERN LAKE
COUNTY FROM THE NORTHWEST.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES. CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF FUNNEL
CLOUDS.

THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING EXCESSIVE LIGHTNING
STRIKES...DEFINED AS 12 OR MORE CLOUD TO GROUND STRIKES PER MINUTE.
SEEK SHELTER IN AN ENCLOSED BUILDING OR HARD TOPPED AUTOMOBILE. OPEN
SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO
PROTECTION FROM THE DANGERS OF LIGHTNING.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES
HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE.

KELLY
Special weather statement, Jun 12, 2:10 PM EDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
210 PM EDT TUE JUN 12 2007

FLZ053-121900-
OSCEOLA-
210 PM EDT TUE JUN 12 2007

...STRONG WINDS AFFECTING OSCEOLA COUNTY FOLLOWED BY
THUNDERSTORMS...

AT 204 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG OUTFLOW BOUNDARY PUSHING SOUTH ACROSS OSCEOLA COUNTY
PRODUCING WIND GUSTS OF 45 TO 55 MPH. A STRONG STORM HAS DEVELOPED
OVER CAMPBELL BEHIND THE GUST FRONT...AND IS MOVING SOUTHEAST AT 15
MPH. OTHER STRONG STORMS ARE EXPECTED TO DEVELOP ACROSS OSCEOLA
COUNTY BEHIND THE GUST FRONT.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES. CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
WATERSPOUTS.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES
HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE.

KELLY
Special weather statement, Jun 12, 2:23 PM EDT, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
223 PM EDT TUE JUN 12 2007

FLZ047-121915-
SOUTHERN BREVARD COUNTY-
223 PM EDT TUE JUN 12 2007

...STRONG WIND GUSTS AND THUNDERSTORMS AFFECTING SOUTHERN BREVARD
COUNTY...

AT 217 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
GUST FRONT PUSHING SOUTH ACROSS SOUTHERN BREVARD COUNTY...CAPABLE OF
PRODUCING WIND GUSTS OF 45 TO 55 MPH. STRONG STORMS JUST BEHIND THE
GUST FRONT WILL OVERSPREAD MUCH OF SOUTHERN BREVARD AND MAY PRODUCE
ADDITIONAL STRONG WIND GUSTS.

THE PRIMARY THREAT FROM THE GUST FRONT AND SUBSEQUENT STORMS WILL BE
CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 45 TO 55
MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO BLOW AROUND...SNAP TREE
LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL WILL TEMPORARILY REDUCE
VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM PASSES. CONDITIONS
ARE FAVORABLE FOR THE DEVELOPMENT OF FUNNEL CLOUDS.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES
HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE.

KELLY
Local storm report, Jun 12, 2:25 PM EDT, 1 hour 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
225 PM EDT TUE JUN 12 2007

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

1250 PM     TSTM WND DMG     LAKE HELEN              28.98N 81.23W
06/12/2007                   VOLUSIA            FL   LAW ENFORCEMENT

            TREES BLOWN DOWN IN LAKE HELEN AREA.

0107 PM     TSTM WND DMG     ORANGE CITY             28.94N 81.29W
06/12/2007                   VOLUSIA            FL   LAW ENFORCEMENT

            TREES BLOWN DOWN IN ORANGE CITY AREA.

&&

DLJ
Special weather statement, Jun 12, 3:02 PM EDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
302 PM EDT TUE JUN 12 2007

FLZ047-053-054-122000-
INDIAN RIVER-OSCEOLA-SOUTHERN BREVARD COUNTY-
302 PM EDT TUE JUN 12 2007

...STRONG THUNDERSTORMS AFFECTING SOUTHERN BREVARD COUNTY...INDIAN
RIVER COUNTY...SOUTHERN OSCEOLA COUNTY...

AT 255 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
BROKEN LINE OF STRONG STORMS FROM MALABAR TO LAKE KISSIMMEE...MOVING
SOUTHEAST AT 25 MPH.

LOCATIONS IN THE PATH OF THIS STRONG STORM INCLUDE GRANT...
MICCO...SEBASTIAN...YEEHAW JUNCTION...FELLSMERE AND VERO BEACH.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES. CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
WATERSPOUTS.

THIS STORM WILL ALSO BE CAPABLE OF PRODUCING EXCESSIVE LIGHTNING
STRIKES...DEFINED AS 12 OR MORE CLOUD TO GROUND STRIKES PER MINUTE.
SEEK SHELTER IN AN ENCLOSED BUILDING OR HARD TOPPED AUTOMOBILE. OPEN
SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO
PROTECTION FROM THE DANGERS OF LIGHTNING.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES
HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE.

KELLY
Special weather statement, Jun 12, 3:49 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
349 PM EDT TUE JUN 12 2007

FLZ059-064-122100-
MARTIN-ST. LUCIE-
349 PM EDT TUE JUN 12 2007

...STRONG THUNDERSTORMS AFFECTING MARTIN COUNTY...ST. LUCIE COUNTY...

AT 350 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG STORM 6 MILES WEST OF LAKEWOOD PARK...MOVING SOUTHEAST AT 15
MPH. OTHER STRONG STORMS ARE EXPECTED TO DEVELOP OVER INTERIOR
SAINT LUCIE AND MARTIN COUNTIES AND MOVE TOWARD THE MORE POPULATED
COASTAL AREAS.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.

THIS STORM WILL ALSO BE CAPABLE OF PRODUCING EXCESSIVE LIGHTNING
STRIKES...DEFINED AS 12 OR MORE CLOUD TO GROUND STRIKES PER MINUTE.
SEEK SHELTER IN AN ENCLOSED BUILDING OR HARD TOPPED AUTOMOBILE. OPEN
SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO
PROTECTION FROM THE DANGERS OF LIGHTNING.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES. STATE LAW REQUIRES
HEADLIGHTS TO BE TURNED ON WHEN WINDSHIELD WIPERS ARE IN USE.

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 5:41 AM EDTSpecial Marine WarningMLB2 hr
Jun 12, 7:45 AM EDTSpecial Marine WarningMLB90 min
Jun 12, 11:20 AM EDTSpecial Marine WarningMLB115 min
Jun 12, 12:14 PM EDTSevere Thunderstorm WarningMLBVolusia61 min
Jun 12, 12:46 PM EDTSevere Thunderstorm WarningMLBLake, Seminole, Volusia59 min
Jun 12, 12:47 PM EDTSpecial Marine WarningMLB88 min
Jun 12, 2:34 PM EDTSpecial Marine WarningMLB85 min
Jun 12, 3:41 PM EDTSpecial Marine WarningMLB2 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm warning in 2007

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.