Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Tallahassee, FL

April 28, 2011Geneva County, Alabama

NWS Tallahassee, FL issued this special weather statement at Apr 28, 2011, 1:49 AM CDT for Geneva County, Alabama. It was in force for 26 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
Apr 28, 2011, 1:49 AM CDT (06:49 UTC)
Expired
Apr 28, 2011, 2:15 AM CDT
In force
26 min
Issued by
NWS Tallahassee, FL

County Geneva County, AL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 6.8 hours before the alert went out and 171 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 00:00Z on 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3101 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.193958Sfc1 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
3101 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.8

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 Apr 27, 9:19 PM CDT, 4 hours 30 minutes earlier.

Area forecast discussion, Apr 27, 9:19 PM CDT, 4 hours 30 minutes before
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Hazardous weather outlook, Apr 27, 9:32 PM CDT, 4 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1032 PM EDT WED APR 27 2011

ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-281000-
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-
1032 PM EDT WED APR 27 2011 /932 PM CDT WED APR 27 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...

A COLD FRONT WILL MOVE INTO THE FORECAST AREA LATER TONIGHT WITH
A ROUND OF SHOWERS AND STORMS ALONG AND AHEAD OF IT. THE STORM
PREDICTION CENTER CONTINUES TO OUTLOOK MUCH OF THE CENTRAL AND
WESTERN PORTIONS OF THE AREA IN A SLIGHT RISK FOR SEVERE WEATHER
INTO THURSDAY MORNING. SHOWERS AND STORMS WILL ARRIVE ACROSS THE
FLORIDA PANHANDLE AND SOUTHEAST ALABAMA DURING THE LATE EVENING
AND EARLY MORNING HOURS...AND THEN MOVE EAST INTO SOUTHWEST
GEORGIA...AND THE FLORIDA PANHANDLE DURING THE LATE NIGHT HOURS.
A FEW OF THE STORMS THAT WILL BE MOVING THROUGH THE AREA WILL BE
CAPABLE OF BECOMING STRONG TO SEVERE WITH DAMAGING WINDS...AND
ISOLATED TORNADOES THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

ONCE THE SHOWERS AND THUNDERSTORMS SEVERE HAVE MOVED EAST OF THE
REGION BY THE END OF THE DAY THURSDAY...CONDITIONS WILL BE FAIR
INTO EARLY NEXT WEEK WITH COMFORTABLE TEMPERATURES RETURNING.
WINDS WILL KICK UP TO EXERCISE CAUTION LEVELS ACROSS THE GULF
COASTAL WATERS EACH NIGHT THROUGH THE WEEKEND AND THEN SUBSIDE
EACH AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED FOR OVERNIGHT INTO THURSDAY
MORNING.

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.

14-MROCZKA

In the hours before

Special weather statement, Apr 28, 1:31 AM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
231 AM EDT THU APR 28 2011

ALZ065-066-280715-
COFFEE AL-DALE AL-
131 AM CDT THU APR 28 2011

...SIGNIFICANT WEATHER ADVISORY IN EFFECT FOR COFFEE AND DALE
COUNTIES...

* UNTIL 215 AM CDT

AT 126 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 25 MILES NORTH OF
ENTERPRISE TO 12 MILES WEST OF ENTERPRISE...OR ALONG A LINE EXTENDING
FROM ARITON TO FAIRVIEW...MOVING EAST AT 35 MPH.

PEOPLE IN DALE AND EASTERN COFFEE COUNTIES...INCLUDING THE CITY OF
ENTERPRISE...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

WINDS AROUND 50 MPH ARE EXPECTED WITH THESE STORMS.

LAT...LON 3163 8583 3162 8542 3129 8542 3128 8548
      3125 8549 3127 8560 3127 8566 3125 8568
      3123 8611
TIME...MOT...LOC 0630Z 259DEG 31KT 3167 8569 3128 8601

42-DVD
Special weather statement, Apr 28, 1:49 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
249 AM EDT THU APR 28 2011

ALZ068-280715-
GENEVA AL-
149 AM CDT THU APR 28 2011

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR GENEVA COUNTY...

* UNTIL 215 AM CDT

AT 145 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A STRONG
THUNDERSTORM 15 MILES SOUTHWEST OF ENTERPRISE...OR NEAR
SELLERSVILLE...MOVING EAST AT 40 MPH.

DIME SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

LAT...LON 3119 8610 3120 8554 3112 8552 3104 8606
TIME...MOT...LOC 0649Z 258DEG 33KT 3115 8597

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:03 AM CDTSevere Thunderstorm WarningTAEHolmes27 min
Apr 28, 3:27 AM CDTSevere Thunderstorm WarningTAEHolmes, Jackson48 min
Apr 28, 3:31 AM CDTSpecial Marine WarningTAE59 min
Apr 28, 4:22 AM CDTSpecial Weather StatementTAEJackson38 min
Apr 28, 4:51 AM CDTTornado WarningTAEJackson39 min
Apr 28, 6:11 AM CDTSpecial Weather StatementTAEGadsden49 min
Apr 28, 6:45 AM CDTSevere Thunderstorm WarningTAEGadsden, Leon45 min
Apr 28, 7:02 AM CDTTornado WarningTAEGadsden, Leon28 min
Apr 28, 7:21 AM CDTSevere Thunderstorm WarningTAELeon39 min
Apr 28, 7:40 AM CDTSevere Thunderstorm WarningTAELeon, Wakulla50 min
Apr 28, 7:56 AM CDTSevere Thunderstorm WarningTAEJefferson, Leon49 min
Apr 28, 8:16 AM CDTTornado WarningTAELeon, Wakulla29 min
Apr 28, 8:30 AM CDTSevere Thunderstorm WarningTAEJefferson, Madison45 min
Apr 28, 8:45 AM CDTSevere Thunderstorm WarningTAEJefferson, Wakulla60 min
Apr 28, 9:03 AM CDTSevere Thunderstorm WarningTAEJefferson42 min
Apr 28, 9:21 AM CDTSpecial Marine WarningTAE54 min
Apr 28, 9:41 AM CDTSevere Thunderstorm WarningTAEJefferson, Madison49 min
Apr 28, 9:46 AM CDTSevere Thunderstorm WarningTAEJefferson, Taylor44 min
Apr 28, 10:30 AM CDTSpecial Weather StatementTAETaylor60 min
Apr 28, 10:31 AM CDTSpecial Weather StatementTAEMadison29 min
Apr 28, 11:29 AM CDTSpecial Weather StatementTAELafayette61 min
Apr 28, 11:39 AM CDTSevere Thunderstorm WarningTAEMadison21 min
Apr 28, 11:46 AM CDTSevere Thunderstorm WarningTAELafayette, Taylor44 min
Apr 28, 11:56 AM CDTTornado WarningTAELafayette34 min
Apr 28, 12:29 PM CDTSevere Thunderstorm WarningTAELafayette31 min
Apr 28, 2:42 PM CDTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more12 hr
Apr 28, 5:26 AM CDTTornado WarningTAEDecatur, Seminole34 min
Apr 28, 5:56 AM CDTTornado WarningTAEDecatur49 min
Apr 28, 6:06 AM CDTSpecial Weather StatementTAEColquitt, Thomas39 min
Apr 28, 6:49 AM CDTSpecial Weather StatementTAEThomas41 min
Apr 28, 6:58 AM CDTSevere Thunderstorm WarningTAEBrooks, Colquitt, Thomas47 min
Apr 28, 7:19 AM CDTSevere Thunderstorm WarningTAECalhoun, Dougherty, Lee, Terrell, Turner, Worth41 min
Apr 28, 8:13 AM CDTSevere Thunderstorm WarningTAEBrooks, Lowndes47 min
Apr 28, 8:22 AM CDTTornado WarningTAELowndes23 min
Apr 28, 9:14 AM CDTSevere Thunderstorm WarningTAEBrooks, Lanier, Lowndes61 min
Apr 28, 9:20 AM CDTSevere Thunderstorm WarningTAEColquitt, Cook, Grady, Mitchell, Thomas, Tift and 1 more40 min
Apr 28, 10:13 AM CDTSevere Thunderstorm WarningTAELanier, Lowndes32 min
Apr 28, 1:03 AM CDTTornado WarningTAECoffee23 min
Apr 28, 1:31 AM CDTSpecial Weather StatementTAEDale44 min
Apr 28, 2:36 AM CDTSpecial Weather StatementTAEDale24 min
Apr 28, 2:43 AM CDTSpecial Weather StatementTAEGeneva32 min

Nearby

Special Weather Statements in Alabama, 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.