Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Melbourne, FL

August 10, 2012Lake County, Florida

NWS Melbourne, FL issued this special weather statement at Aug 10, 2012, 2:16 PM EDT for Lake County, Florida. It was in force for 44 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: Aug 10, 2012, 2:16 PM EDT (18:16 UTC)
Expired: Aug 10, 2012, 3:00 PM EDT
In force: 44 min
Issued by: NWS Melbourne, FL

County Lake County, FL

The radar

The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 18:15 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.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 6.3 hours before the alert went out and 135 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: 1897 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 16 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 Aug 10, 9:35 AM EDT, 4 hours 41 minutes earlier.

Area forecast discussion, Aug 10, 9:35 AM EDT, 4 hours 41 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 10, 4:54 AM EDT, 9 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
454 AM EDT FRI AUG 10 2012

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-102100-
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-
454 AM EDT FRI AUG 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
ATMOSPHERIC MOISTURE IS FORECAST TO INCREASE TODAY SO THE COVERAGE
OF AFTERNOON AND EVENING STORMS SHOULD BE A LITTLE GREATER THAN
THURSDAY. THE INLAND MOVING SEA BREEZE WILL BE THE INITIAL
FOCUS...THEN MULTIPLE BOUNDARY INTERACTIONS ACROSS INTERIOR
SECTIONS WILL GENERATE THE HIGHEST COVERAGE DURING THE AFTERNOON
AND EVENING.

THE MAIN HAZARD WITH ISOLATED STRONG STORMS WILL BE FREQUENT
LIGHTNING STRIKES. SOME LINGERING DRY AIR IN THE MID LEVELS OF THE
ATMOSPHERE WILL ALSO LEAD TO STRONG WIND GUSTS TO AROUND 50 MPH
IN A FEW STRONG STORMS.

.FLOOD IMPACT...
STORMS WILL HAVE LITTLE MOTION TODAY SO A FEW STRONG STORMS WILL
PRODUCE LOCAL 2 TO 3 INCH RAIN AMOUNTS.

.MARINE THUNDERSTORM GUST IMPACT...
ISOLATED STRONG STORMS WILL PRODUCE WIND GUSTS OVER 34 KNOTS
ACROSS THE MAINLAND THIS AFTERNOON. LITTLE STORM MOTION IS
EXPECTED...BUT GUSTY CONDITIONS COULD SPREAD WELL AWAY FROM THE
HEAVY RAIN AND LIGHTNING AND AFFECT THE INTRACOASTAL WATERS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
GREATER DEEP LAYER MOISTURE AND A LIGHT SOUTHWEST STEERING FLOW
WILL BRING SCATTERED AFTERNOON STORMS TO MOST SECTIONS THROUGH
EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE THIS AFTERNOON
IF NEEDED.

LASCODY

In the hours before

Special weather statement, Aug 10, 2:16 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
216 PM EDT FRI AUG 10 2012

FLZ044-045-144-101900-
NORTHERN LAKE COUNTY-ORANGE-SOUTHERN LAKE COUNTY-
216 PM EDT FRI AUG 10 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 50 MPH OVER CENTRAL LAKE COUNTY...NORTHWESTERN ORANGE
COUNTY...

* UNTIL 300 PM EDT.

AT 210 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER HOWEY IN THE
HILLS...MOVING NORTHEAST AT 5 TO 10 MPH.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 50 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 2888 8167 2866 8156 2860 8180 2876 8189
TIME...MOT...LOC 1815Z 234DEG 4KT 2870 8177

WEITLICH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 4:41 PM EDT	Special Weather Statement	MLB	Volusia	49 min
Aug 10, 5:29 PM EDT	Special Marine Warning	MLB		68 min

Nearby

Special Weather Statements in Florida, 2012 Every 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.