Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Tallahassee, FL

July 5, 2012Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Jul 5, 2012, 4:08 PM CDT for Walton 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: Jul 5, 2012, 4:08 PM CDT (21:08 UTC)
Expired: Jul 5, 2012, 5:00 PM CDT
In force: 52 min
Issued by: NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 11 km from the middle of the area, began a volume at 21:08 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.1 hours before the alert went out and 166 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: 1309 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 703 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 27 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 Tallahassee, FL wrote its last area forecast discussion before this special weather statement went out at Jul 5, 1:31 PM CDT, 2 hours 37 minutes earlier.

Area forecast discussion, Jul 5, 1:31 PM CDT, 2 hours 37 minutes before

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Hazardous weather outlook, Jul 5, 1:55 PM CDT, 2 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
255 PM EDT THU JUL 5 2012

ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-061845-
COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON-
HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF-
INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY-
INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON-
COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON-
COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY-
RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN-
EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-
DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM-
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM-
COASTAL WATERS FROM  OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM-
COASTAL WATERS FROM  SUWANNEE RIVER TO KEATON BEACH OUT 20 NM-
WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM-
WATERS FROM  SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM-
255 PM EDT THU JUL 5 2012 /155 PM CDT THU JUL 5 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA...
SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND
AND PANHANDLE...AND ADJACENT COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE SEA BREEZE FRONT
AND IN ASSOCIATION WITH AN APPROACHING UPPER LEVEL TROUGH OF LOW
PRESSURE FROM THE NORTH. THE BEST CHANCES FOR SHOWERS AND STORMS
WILL BE THIS AFTERNOON...AND A FEW COULD PRODUCE GUSTY WINDS AND
LOCALLY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA
OF INTEREST ON THE NATIONAL MAP.

In the hours before

Special weather statement, Jul 5, 4:08 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
508 PM EDT THU JUL 5 2012

FLZ008-010-108-052200-
CENTRAL WALTON FL-SOUTH WALTON FL-WASHINGTON FL-
408 PM CDT THU JUL 5 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR SOUTHEAST WALTON AND
WESTERN WASHINGTON COUNTIES...

* UNTIL 500 PM CDT

AT 402 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A STRONG
THUNDERSTORM 17 MILES SOUTHWEST OF VERNON...OR NEAR BRUCE...MOVING
NORTHWEST AT 5 MPH.

WINDS 40 TO 50 MPH AND FREQUENT LIGHTNING ARE EXPECTED WITH THIS STORM.
SMALL HAIL UP TO DIME SIZE IS ALSO POSSIBLE.

LAT...LON 3055 8619 3067 8590 3049 8581 3039 8603
TIME...MOT...LOC 2106Z 156DEG 6KT 3047 8594

22-BARRY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 4:58 PM CDT	Special Weather Statement	TAE	Walton	32 min
Jul 5, 5:03 PM CDT	Special Weather Statement	TAE	Washington	42 min
Jul 5, 5:07 PM CDT	Special Weather Statement	TAE	Dougherty	38 min
Jul 5, 6:04 PM CDT	Special Weather Statement	TAE	Calhoun	41 min
Jul 5, 6:12 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Clay, Early	48 min
Jul 5, 6:57 PM CDT	Severe Thunderstorm Warning	TAE	Clay, Early	35 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.