Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Melbourne, FL

June 5, 2012Orange County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 5, 2012, 1:36 PM EDT for Orange County, Florida. It was in force for 54 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 5, 2012, 1:36 PM EDT (17:36 UTC)
Expired
Jun 5, 2012, 2:30 PM EDT
In force
54 min
Issued by
NWS Melbourne, FL

County Orange County, FL

The radar

The Tampa radar (KTBW), 101 km from the middle of the area, began a volume at 17:39 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 5.6 hours before the alert went out and 114 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 2012-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 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 2012-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.19395878Sfc1 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
449 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
15 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 5, 9:36 AM EDT, 4 hours earlier.

Area forecast discussion, Jun 5, 9:36 AM EDT, 4 hours before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
936 AM EDT TUE JUN 5 2012

.DISCUSSION...
BRISK WLY FLOW REMAINS IN PLACE UP THROUGH THE MID LEVELS THIS
MORNING WITH A CONSIDERABLE AMOUNT OF UPPER CLOUDINESS STREAMING
DOWNSTREAM FROM THE GULF AREA. LATEST SOUNDING INFO FROM TBW/XMR
SHOWS NO CHANGE IN PWAT OVER THE PAST 24H...HOWEVER SOME COOLING
ALOFT IN TEMP PROFILE AROUND 1-2C. COUNTERING WINDS WILL NOT ALLOW
FOR AN EAST COAST BREEZE BOUNDARY TO DEVELOP.

WITH ABSENCE OF THE ECSB FOR CONVECTIVE FORCING MECHANISM AND
CONSIDERABLE CLOUD COVER SB INSTABILITY WL BE LARGELY ABSENT. EXPECT
SOME DEVELOPMENT OF SHRA AND ISOLD TS MAINLY WEST OF THE FORECAST
AREA FROM EARLY TO MID AFTERNOON TO MOVE EAST INTO THE AREA. THIS
ACTIVITY MAY HELP PROMOTE SOME ADTL SHRA. WL LOWER PRECIP MENTION TO
NO MORE THAN 30 PERCENT WITH ISOLD TS EXPECTED THE REMAINDER OF THE
DAY.

WITH NO SEA BREEZE FOR THE PREVAILING WESTERLY WINDS TO INTERACT
START OF PRECIP TO LATE AFTERNOON. HOWEVER...STORMS THAT FORM WITHIN
AIR MASS THAT HAS COOL/DRY MID LEVELS WILL BE CAPABLE OF PRODUCING A
FEW STRONG WIND GUSTS.

&&

.AVIATION...
CONSIDERABLE HIGHER CLOUDS WITH CIGS NR 200. AFT 19Z EXPECT SCT 040
WITH ISOLD BKN040 AND SFC WND G30KT IN NR TS MOVG EAST AT 20 KT.

&&

.MARINE...
WESTERLY WINDS REMAIN IN THE EXERCISE CAUTION WINDOW...15 TO 20
KNOTS THEN WL BEGIN TO DIMINISH LATE IN THE AFTERNOON MOST OF THE
NIGHT. WINDS/SEAS LOCALLY HIGHER NEAR SCT SHOWERS MOVING OFFSHORE
AFTER 4 PM THIS AFTERNOON.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.

&&

JP/DKW
Hazardous weather outlook, Jun 5, 12:49 PM EDT, 47 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MELBOURNE FL
1249 PM EDT TUE JUN 5 2012

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-052300-
COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE
OUT 20 NM-
COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN
INLET OUT 20 NM-
COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO
60 NM OFFSHORE-
WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO
60 NM OFFSHORE-
WATERS FROM SEBASTIAN INLET 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-
1249 PM EDT TUE JUN 5 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER
THE REGION INTO THE AFTERNOON AND MOVE QUICKLY EASTWARD AROUND 20
TO 25 MPH ACROSS EAST CENTRAL FLORIDA AND OFFSHORE. DRY AIR AND
COLDER TEMPERATURES ALOFT MAY SUPPORT A FEW STRONG TO MARGINALLY
SEVERE STORMS INTO MID TO LATE AFTERNOON. THE MAIN THREATS FROM
THIS ACTIVITY WILL BE STRONG WIND GUSTS INTO EXCESS OF 40
MPH...SMALL HAIL...AND FREQUENT CLOUD TO GROUND LIGHTNING.

.MARINE THUNDERSTORM GUST IMPACT...
SCATTERED LIGHTNING STORMS WILL BE CAPABLE OF PRODUCING WIND
GUSTS AROUND 34 KNOTS ON INLAND LAKES...THE INTRACOASTAL WATERWAY
AND THE NEARSHORE WATERS THIS AFTERNOON AND EARLY EVENING. BOATERS
SHOULD KEEP AN EYE TO THE WESTERN SKY FOR FAST APPROACHING STORMS
AND SEEK SAFE HARBOR UNTIL THE STORMS PASS YOUR LOCATION.

.FIRE WEATHER IMPACT...
ALTHOUGH LOW RELATIVE HUMIDITY WILL NOT BE A CONCERN TODAY...GUSTY
SURFACE AND TRANSPORT WINDS ABOVE 15 MPH WILL ENHANCE FIRE SPREAD
FOR EXISTING AND ANY DEVELOPING BRUSH FIRES THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
CHANCES FOR SHOWERS AND STORMS WILL INCREASE THROUGH THURSDAY AS
A FRONTAL BOUNDARY STALLS OVER NORTH FLORIDA...THEN SAGS SLOWLY
SOUTH INTO THE PENINSULA LATE WEEK. SCATTERED STORMS ARE EXPECTED
FRIDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE
IF NEEDED.

WIMMER/WEITLICH

In the hours before

Special weather statement, Jun 5, 1:36 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
136 PM EDT TUE JUN 5 2012

FLZ045-053-144-051830-
ORANGE-OSCEOLA-SOUTHERN LAKE COUNTY-
136 PM EDT TUE JUN 5 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH OVER SOUTHWESTERN LAKE COUNTY...SOUTHERN ORANGE
COUNTY...NORTHWESTERN OSCEOLA COUNTY...

* UNTIL 230 PM EDT.

AT 133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER KISSIMMEE...MOVING
EAST AT 20 MPH. ADDITIONAL STRONG STORMS WILL BE POSSIBLE ACROSS
SOUTHERN LAKE COUNTY...MOVING INTO THE ORLANDO METRO AREA.

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.

LAT...LON 2851 8196 2857 8109 2823 8103 2814 8153
      2820 8153 2826 8156 2826 8166 2834 8167
      2834 8179 2836 8180 2836 8185 2834 8186
      2835 8196
TIME...MOT...LOC 1735Z 264DEG 18KT 2830 8142

WEITLICH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 2:11 PM EDTSpecial Marine WarningMLB2 hr
Jun 5, 2:21 PM EDTSpecial Weather StatementMLBLake, Orange, Seminole, Volusia54 min
Jun 5, 2:41 PM EDTSevere Thunderstorm WarningMLBBrevard, Seminole, Volusia64 min
Jun 5, 3:15 PM EDTSpecial Weather StatementMLBLake, Seminole, Volusia60 min
Jun 5, 4:26 PM EDTSpecial Weather StatementMLBMartin64 min
Jun 5, 4:44 PM EDTSpecial Marine WarningMLB73 min
Jun 5, 7:22 PM EDTSpecial Weather StatementMLBLake, Orange, Seminole38 min

Nearby

Special Weather Statements in Florida, 2012Every special weather statement in 2012

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.