Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Tallahassee, FL

September 20, 2012Taylor County, Florida

NWS Tallahassee, FL issued this special weather statement at Sep 20, 2012, 1:13 PM EDT for Taylor County, Florida. It was in force for 47 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 20, 2012, 1:13 PM EDT (17:13 UTC)
Expired
Sep 20, 2012, 2:00 PM EDT
In force
47 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 17:14 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, 5.2 hours before the alert went out and 64 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 2012-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 2012-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
143 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
1191 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

121 
WWUS82 KTAE 201713
SPSTAE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
113 PM EDT THU SEP 20 2012

FLZ028-128-201800-
COASTAL TAYLOR-INLAND TAYLOR-
113 PM EDT THU SEP 20 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CENTRAL TAYLOR
COUNTY FOR STRONG WINDS AND FUNNEL CLOUDS VALID UNTIL 200 PM EDT...

AT 113 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 3 MILES NORTHWEST OF HAMPTON SPRINGS...OR 7
MILES WEST OF PERRY...MOVING NORTH AT 5 MPH. THESE STRONG
THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND PERRY...HAMPTON
SPRINGS...ECONFINA...SECOTAN...BOYD...SHADY GROVE...LAKE BIRD...IDDO
AND ERIDU THROUGH 200 PM EDT. GUSTY WINDS OF 40 TO 50 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. DOPPLER RADAR HAS
INDICATED WEAK ROTATION WITHIN THIS STORM. TORNADOES MAY DEVELOP WITH
LITTLE OR NO ADVANCE WARNING. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2993 8358 2999 8385 3027 8386 3030 8382
      3031 8358
TIME...MOT...LOC 1713Z 174DEG 6KT 3013 8370

$$

HESS

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 20, 10:22 AM EDT, 2 hours 51 minutes earlier.

Area forecast discussion, Sep 20, 10:22 AM EDT, 2 hours 51 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
1022 AM EDT Thu Sep 20 2012

.UPDATE...
MAIN FORECAST PACKAGE LOOKS ON TRACK AS WATER VAPOR IMAGERY STILL
SHOWING SHORTWAVE AT THE BASE OF LONG-WAVE TROF OVER THE CENTRAL
GULF OF MEXICO. THIS IS STILL PROGGED TO TRACK E/NE INTO THE
FLORIDA PENINSULA...BUT ENOUGH OVER-RUNNING/ISENTROPIC LIFT
NORTHWARD OVER OLD FRONTAL BOUNDARY WILL TRIGGER SCATTERED SHOWERS
AND A FEW ISOLATED THUNDERSTORMS ACROSS PORTIONS OF THE BIG BEND
REGION...MAINLY SOUTHEAST OF A LINE FROM TALLAHASSEE TO VALDOSTA
GEORGIA. NORTHWEST OF THIS LINE ACROSS SE AL...THE REMAINDER OF SW
GA AND THE FLORIDA PANHANDLE SHOULD REMAIN MOSTLY SUNNY TO PARTLY
CLOUDY WITH SOME INCREASE IN CLOUD COVER FROM HIGH CLOUDS AND LOW
LEVEL CUMULUS FIELD TO DEVELOP DURING THE AFTERNOON HOURS. HIGHS
IN SUN-DRENCHED AREAS SHOULD REACH THE MID/UPPER 80S WHILE SOME
AREAS IN THE BIG BEND WILL STRUGGLE TO TOP OUT IN THE LOWER/MIDDLE
80S WITH THICKER CLOUD COVER EXPECTED.

TONIGHT...ANY LINGERING SHOWER/TSTM ACTIVITY EARLY THIS EVENING
OVER THE BIG BEND SHOULD DIMINISH FAIRLY QUICKLY AFTER SUNSET WITH
THE LOSS OF DAYTIME HEATING AND EXITING OF SHORTWAVE TO OUR
SOUTHEAST OVER THE FLORIDA PENINSULA. SKIES WILL REMAIN PARTLY
CLOUDY OVER THE BIG BEND...WHILE MOSTLY CLEAR SKIES SHOULD DEVELOP
OVER SE AL...FLORIDA PANHANDLE AND MUCH OF SW GA. SEASONABLE
OVERNIGHT LOWS IN THE 60S EXPECTED.

&&

.AVIATION...
LOW CLOUD DECK WITH IFR CIGS/VSBYS HAS STALLED ACROSS SOUTH
GEORGIA...MAINLY IMPACTING THE KABY TAF SITE THIS MORNING WHERE
CONDITIONS WILL BE SLOW TO IMPROVE UNTIL THIS AFTERNOON. OTHERWISE
LOWER CLOUD DECK AT KVLD HAS BEGUN TO LIFT WITH ISOLATED SHOWERS
BEGINNING TO BREAK OUT BETWEEN KVLD AND KTLH AND WILL MONITOR
LATEST RADAR TRENDS FOR POSSIBLE INCLUSION IN TAF PACKAGE.
OTHERWISE VFR CONDS EXPECTED FURTHER WEST ACROSS REMAINING TAF
LOCATIONS.

&&

.MARINE...
NO CHANGES EXPECTED...AS WINDS INCREASE SLIGHTLY OUT OF THE N/NE
AS SURFACE WAVE MOVES ALONG FRONT PARKED SOUTH OF THE COASTAL
WATERS. SOME ISOLATED THUNDERSTORM ACTIVITY WILL REMAIN POSSIBLE
OVER THE OUTER COASTAL WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
Tallahassee   88  66  88  67  90 /  20  10  10  10  10
Panama City   87  67  87  69  89 /  10   0  10  10  10
Dothan        87  62  87  65  89 /  10   0  10  10  10
Albany        87  64  88  66  90 /  10  10  10  10  10
Valdosta      86  65  88  66  89 /  20  10  20  10  20
Cross City    86  66  88  65  89 /  40  20  30  10  20
Apalachicola  85  68  86  67  86 /  10  10  10  10  10

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
AL...None.
GA...None.
FL...None.
GM...None.
&&

HESS
Hazardous weather outlook, Sep 20, 12:01 PM EDT, 1 hour 12 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
1201 PM EDT THU SEP 20 2012

ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-210200-
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-
1201 PM EDT THU SEP 20 2012 /311 AM CDT THU SEP 20 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...TODAY AND TONIGHT...

ISOLATED THUNDERSTORMS MAY CONTAIN LOCALLY HEAVY RAINFALL ALONG THE
BIG BEND REGION THIS AFTERNOON...MAINLY FROM TALLAHASSEE AND POINTS
TO THE SOUTH AND EAST. MINOR FLOODING OF LOW LYING AREAS WILL BE
POSSIBLE.

.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.

BARRY/HESS

In the hours before

Special weather statement, Sep 20, 12:17 PM EDT, 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
1217 PM EDT THU SEP 20 2012

FLZ028-128-201700-
COASTAL TAYLOR-INLAND TAYLOR-
1217 PM EDT THU SEP 20 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WESTERN TAYLOR
COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID
UNTIL 100 PM EDT...

AT 1217 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 3 MILES
SOUTHWEST OF SCANLON TO 4 MILES SOUTHWEST OF HAMPTON SPRINGS...MOVING
WEST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS
AROUND SCANLON...PERRY-FOLEY AIRPORT...HAMPTON SPRINGS...ECONFINA...
BUCELL JUNCTION...NUTALL RISE AND MANDALAY THROUGH 100 PM EDT. HAIL
UP TO THREE QUARTER INCH IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER
ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2992 8370 2997 8381 2996 8383 3000 8386
      3002 8393 3008 8400 3011 8398 3017 8396
      3020 8391 3005 8349
TIME...MOT...LOC 1617Z 071DEG 3KT 3009 8392 3004 8369

HESS
Special weather statement, Sep 20, 12:37 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
1237 PM EDT THU SEP 20 2012

GAZ157-158-201700-
GRADY-THOMAS-
1237 PM EDT THU SEP 20 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WESTERN THOMAS
AND EASTERN GRADY COUNTIES FOR STRONG WINDS...SMALL HAIL AND
EXCESSIVE LIGHTNING VALID UNTIL 100 PM EDT...

AT 1237 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 2 MILES
NORTHWEST OF OCHLOCKNEE TO BEACHTON...MOVING NORTH AT 5 MPH. THESE
STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND ROCKY HILL...PINE
PARK...OCHLOCKNEE...BEACHTON...SPENCE...GRADY CO A/P...CAPEL...CAIRO
AND AKRIDGE THROUGH 100 PM EDT. HAIL UP TO THREE QUARTER INCH IN
DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35
TO 45 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY
RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR
FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3068 8403 3069 8426 3108 8421 3108 8401
      3107 8400
TIME...MOT...LOC 1637Z 191DEG 4KT 3101 8407 3075 8414

HESS
Special weather statement, Sep 20, 1:13 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL
113 PM EDT THU SEP 20 2012

FLZ028-128-201800-
COASTAL TAYLOR-INLAND TAYLOR-
113 PM EDT THU SEP 20 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CENTRAL TAYLOR
COUNTY FOR STRONG WINDS AND FUNNEL CLOUDS VALID UNTIL 200 PM EDT...

AT 113 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 3 MILES NORTHWEST OF HAMPTON SPRINGS...OR 7
MILES WEST OF PERRY...MOVING NORTH AT 5 MPH. THESE STRONG
THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND PERRY...HAMPTON
SPRINGS...ECONFINA...SECOTAN...BOYD...SHADY GROVE...LAKE BIRD...IDDO
AND ERIDU THROUGH 200 PM EDT. GUSTY WINDS OF 40 TO 50 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. DOPPLER RADAR HAS
INDICATED WEAK ROTATION WITHIN THIS STORM. TORNADOES MAY DEVELOP WITH
LITTLE OR NO ADVANCE WARNING. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2993 8358 2999 8385 3027 8386 3030 8382
      3031 8358
TIME...MOT...LOC 1713Z 174DEG 6KT 3013 8370

HESS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 12:17 PM EDTSpecial Weather StatementTAETaylor43 min
Sep 20, 12:30 PM EDTAreal Flood AdvisoryTAETaylor2 hr
Sep 20, 12:51 PM EDTAreal Flood WarningTAETaylor114 min
Sep 20, 1:44 PM EDTSpecial Weather StatementTAEMadison31 min
Sep 20, 2:12 PM EDTSevere Thunderstorm WarningTAELafayette, Taylor21 min
Sep 20, 5:03 PM EDTSpecial Weather StatementTAETaylor57 min
Sep 20, 12:37 PM EDTSpecial Weather StatementTAEGrady23 min
Sep 20, 1:41 PM EDTSpecial Weather StatementTAEBrooks, Lowndes, Thomas34 min
Sep 20, 3:10 PM EDTAreal Flood AdvisoryTAEBrooks, Lowndes65 min
Sep 20, 3:45 PM EDTSevere Thunderstorm WarningTAELowndes30 min
Sep 20, 4:28 PM EDTAreal Flood AdvisoryTAELowndes2 hr

Nearby

Special Weather Statements in Florida, 2012Every 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.