Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Tallahassee, FL

October 18, 2011Taylor County, Florida

NWS Tallahassee, FL issued this special weather statement at Oct 18, 2011, 7:37 PM EDT for Taylor County, Florida. It was in force for 38 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
Oct 18, 2011, 7:37 PM EDT (23:37 UTC)
Expired
Oct 18, 2011, 8:15 PM EDT
In force
38 min
Issued by
NWS Tallahassee, FL

County Taylor County, FL

The radar

The Tallahassee radar (KTLH), 67 km from the middle of the area, began a volume at 23:37 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, 11.6 hours before the alert went out and 65 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, Tallahassee Rgnl, FL at 12:00Z on 2011-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 415 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, Tallahassee Rgnl, FL at 12:00Z on 2011-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
415 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 Oct 18, 6:23 PM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, Oct 18, 6:23 PM EDT, 1 hour 14 minutes before
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Hazardous weather outlook, Oct 18, 5:42 PM EDT, 1 hour 55 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TALLAHASSEE FL
542 PM EDT TUE OCT 18 2011

ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-191100-
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-
518 AM EDT TUE OCT 18 2011 /418 AM CDT TUE OCT 18 2011/

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...TONIGHT...

...THERE IS A CHANCE FOR TORNADOES THROUGH THIS EVENING OVER PARTS
OF THE FLORIDA BIG BEND NEAR THE COAST...

...THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS OVER PARTS OF THE
FLORIDA BIG BEND NEAR THE COAST...

...THERE IS A HIGH RISK OF RIP CURRENTS ALONG THE FLORIDA BIG BEND
AND PANHANDLE BEACHES...

...A SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING FOR ALL OF THE COASTAL WATERS...

AN UPPER LEVEL TROUGH OF LOW PRESSURE AND ASSOCIATED COLD FRONT WILL
MOVE SOUTHEAST ACROSS THE LOCAL AREA...AND A LARGE AREA OF
TROPICAL LOW PRESSURE IN THE NORTHEAST GULF OF MEXICO WILL MOVE
NORTHWARD TOWARDS OUR REGION TONIGHT. THIS COMBINATION WILL GENERATE
SOME SEVERE STORMS INCLUDING POSSIBLE TORNADOES AND LOCALLY HEAVY
RAINFALL INTO THE LATE EVENING AREAS. THE FOCUS WILL BE ACROSS THE
EASTERN BIG BEND. ALSO...UNTIL THE FRONT EXITS EAST AND THE WINDS
SHIFT TO OFFSHORE MINOR FLOODING REMAINS POSSIBLE. LARGE SWELLS FROM
THE GULF OF MEXICO WILL PRODUCE BREAKING WAVES OF 3 TO 5 FEET WITH
HIGHER SETS AT THE BEACHES...MAKING FOR A HIGH RIP CURRENT RISK.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. MUCH
COOLER AND DRIER AIR WILL BUILD INTO THE REGION FROM THE NORTHWEST
ON WEDNESDAY WITH GUSTY NORTHWEST WINDS. FAIR...COOL...AND DRY
WEATHER IS EXPECTED TO CONTINUE FOR THE REST OF THE PERIOD.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY.

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.

BLOCK

In the hours before

Special weather statement, Oct 18, 6:02 PM EDT, 1 hour 35 minutes before
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Special weather statement, Oct 18, 7:37 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 2:51 AM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton26 hr
Oct 18, 4:58 AM EDTFire Weather WatchTAEBay, Calhoun, Holmes, Jackson, Walton, Washington24 hr
Oct 18, 2:59 PM EDTAreal Flood AdvisoryTAEFranklin2 hr
Oct 18, 3:15 PM EDTSpecial Marine WarningTAE2 hr
Oct 18, 4:26 PM EDTGale WarningTAE23 hr
Oct 18, 4:54 PM EDTSevere Thunderstorm WarningTAEFranklin36 min
Oct 18, 5:10 PM EDTSpecial Marine WarningTAE2 hr
Oct 18, 5:17 PM EDTSevere Thunderstorm WarningTAEWakulla43 min
Oct 18, 5:28 PM EDTTornado WarningTAEWakulla32 min
Oct 18, 6:02 PM EDTSpecial Weather StatementTAELeon43 min
Oct 18, 7:12 PM EDTSpecial Marine WarningTAE63 min

Nearby

Special Weather Statements in Florida, 2011Every special weather statement in 2011

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.