Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 178, NWS Tallahassee, FL

July 2, 2011Henry County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 2, 2011, 6:44 PM CDT for Henry County, Alabama. It was in force for 20 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 2, 2011, 6:44 PM CDT (23:44 UTC)
Expired
Jul 2, 2011, 7:04 PM CDT
In force
20 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Henry County, AL

What was reported inside it

TimeReportWhereRemark
Jul 2, 6:45 PM CDTTSTM WND DMGAbbeville, ALREPORT OF STRUCTURAL DAMAGE ALONG HIGHWAY 10 WEST NEAR ABBEVILLE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.7 hours before the alert went out and 156 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 2011-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2177 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2011-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
2177 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1054 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
60 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.

070 
WUUS52 KTAE 022344
SVRTAE
ALC067-030015-
/O.NEW.KTAE.SV.W.0178.110702T2344Z-110703T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
644 PM CDT SAT JUL 2 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HENRY COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 715 PM CDT

* AT 641 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  EDWIN TO GRANDBERRY CROSSROADS...OR ALONG A LINE EXTENDING FROM
  EDWIN TO PLEASANT PLAINS...AND MOVING WEST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  DANCEY...CAPPS...HEADLAND MUNICIPAL A/P...NEWVILLE...HEADLAND...
  KIRKLAND CROSSROADS AND BLACKWOOD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3171 8523 3131 8512 3131 8526 3131 8540
      3132 8542 3166 8543 3171 8541
TIME...MOT...LOC 2344Z 089DEG 13KT 3170 8534 3132 8523

$$

42-DVD
1 follow-up statement
466 
WWUS52 KTAE 030004
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
704 PM CDT SAT JUL 2 2011

ALC067-030014-
/O.CAN.KTAE.SV.W.0178.000000T0000Z-110703T0015Z/
HENRY AL-
704 PM CDT SAT JUL 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR HENRY COUNTY IS CANCELLED...

THE STORM HAS WEAKENED BELOW SEVERE LIMITS.

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3171 8523 3131 8512 3131 8526 3131 8540
      3132 8542 3166 8543 3171 8541
TIME...MOT...LOC 0004Z 089DEG 13KT 3170 8543 3132 8531

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 12:22 PM CDTSpecial Weather StatementTAEHouston38 min
Jul 2, 3:12 PM CDTSpecial Weather StatementTAEGeneva33 min
Jul 2, 3:35 PM CDTSpecial Weather StatementTAECoffee55 min
Jul 2, 3:53 PM CDTSevere Thunderstorm WarningTAECoffee52 min
Jul 2, 6:01 PM CDTSevere Thunderstorm WarningTAEHenry44 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.