Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Tallahassee, FL

September 4, 2011Jefferson County, Florida; Grady County, Georgia

NWS Tallahassee, FL issued this special weather statement at Sep 4, 2011, 4:12 PM EDT for Jefferson County, Florida; Grady County, Georgia. It was in force for 48 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
Sep 4, 2011, 4:12 PM EDT (20:12 UTC)
Expired
Sep 4, 2011, 5:00 PM EDT
In force
48 min
Issued by
NWS Tallahassee, FL

Counties Jefferson County, FL, Grady County, GA

The radar

The Tallahassee radar (KTLH), 35 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 33 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 2011-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1223 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 2011-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939Sfc1 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
1223 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

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 Sep 4, 9:53 AM EDT, 6 hours 19 minutes earlier.

Area forecast discussion, Sep 4, 9:53 AM EDT, 6 hours 19 minutes before
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Hazardous weather outlook, Sep 4, 5:00 AM EDT, 11 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
500 AM EDT SUN SEP 4 2011

ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-050900-
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-
500 AM EDT SUN SEP 4 2011 /400 AM CDT SUN SEP 4 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...TODAY AND TONIGHT...
...TROPICAL STORM LEE SLOWLY MOVING INLAND ACROSS LOUISIANA TODAY...
...SMALL CRAFT ADVISORY FOR HIGH SEAS AND STRONG WINDS...
...FLASH FLOOD WATCH THROUGH MONDAY...
...HIGH SURF AND RIP CURRENT ADVISORY THROUGH TUESDAY...
...ISOLATED TORNADO AND DAMAGING WIND THREAT...
...TIDES 1 TO 2 FEET ABOVE NORMAL...

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...
...LEE WILL GRADUALLY WEAKEN AND MOVE NORTHEAST ACROSS MISSISSIPPI
AND ALABAMA MONDAY AND TUESDAY...
...DANGEROUS BOATING AND SWIMMING CONDITIONS THROUGH TUESDAY AS
HIGH WAVES...SURF...AND FREQUENT RIP CURRENTS CONTINUE...
...ISOLATED TORNADO AND DAMAGING WIND THREAT CONTINUES INTO
MONDAY NIGHT...
...TORRENTIAL DOWNPOURS POSE LOCALIZED FLOOD THREAT MONDAY...
...TIDES APPROACHING 3 FEET ABOVE NORMAL ALONG APALACHEE BAY
MONDAY NIGHT NEAR HIGH TIDE...
...IMPROVING CONDITIONS MID WEEK AS COLD FRONT AND REMNANTS OF
LESS MOVE EAST OF AREA...

.SPOTTER INFORMATION STATEMENT...
LOCALIZED SPOTTER ACTIVATION IS REQUESTED TODAY IF AND WHERE
TORNADO WATCHES AND/OR WARNINGS ARE ISSUED.

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.

FOURNIER

In the hours before

Local storm report, Sep 4, 12:33 PM EDT, 3 hours 39 minutes before
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Local storm report, Sep 4, 1:55 PM EDT, 2 hours 17 minutes before
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Special weather statement, Sep 4, 3:07 PM EDT, 1 hour 5 minutes before
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Special weather statement, Sep 4, 3:27 PM EDT, 45 minutes before
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Special weather statement, Sep 4, 3:36 PM EDT, 36 minutes before
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Special weather statement, Sep 4, 4:12 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
Sep 3, 10:47 PM EDTSpecial Marine WarningTAE58 min
Sep 4, 4:13 AM EDTFlash Flood WatchTAEBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 5 more35 hr
Sep 4, 6:11 AM EDTSevere Thunderstorm WarningTAEWalton49 min
Sep 4, 6:45 AM EDTSpecial Weather StatementTAEWashington30 min
Sep 4, 9:13 AM EDTSpecial Marine WarningTAE32 min
Sep 4, 9:40 AM EDTSpecial Marine WarningTAE50 min
Sep 4, 10:59 AM EDTTornado WarningTAEWalton31 min
Sep 4, 11:20 AM EDTTornado WarningTAEBay, Washington40 min
Sep 4, 12:40 PM EDTTornado WarningTAEWashington25 min
Sep 4, 2:37 PM EDTSpecial Marine WarningTAE38 min
Sep 4, 3:07 PM EDTSpecial Weather StatementTAEWakulla23 min
Sep 4, 3:13 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 3:27 PM EDTSpecial Weather StatementTAEFranklin48 min
Sep 4, 3:32 PM EDTCoastal Flood WatchTAEBay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more25 hr
Sep 4, 3:36 PM EDTSpecial Weather StatementTAEGadsden, Leon, Wakulla39 min
Sep 4, 3:43 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 4:49 PM EDTSpecial Marine WarningTAE41 min
Sep 4, 5:03 PM EDTTornado WarningTAETaylor27 min
Sep 4, 5:29 PM EDTSpecial Marine WarningTAE61 min
Sep 4, 5:46 PM EDTSpecial Marine WarningTAE44 min
Sep 4, 5:58 PM EDTSpecial Marine WarningTAE47 min
Sep 4, 7:01 PM EDTSpecial Marine WarningTAE44 min
Sep 4, 7:44 PM EDTSpecial Marine WarningTAE61 min
Sep 4, 7:48 PM EDTSpecial Marine WarningTAE27 min
Sep 4, 7:16 AM EDTSpecial Weather StatementTAEGeneva29 min

Nearby

Special Weather Statements in Florida, 2011Special Weather Statements in Georgia, 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.