Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 33, NWS Tallahassee, FL

March 27, 20114 counties in Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 27, 2011, 3:36 PM CDT for 4 counties in Alabama. It was in force for 39 min. 3 reports 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
Mar 27, 2011, 3:36 PM CDT (20:36 UTC)
Expired
Mar 27, 2011, 4:15 PM CDT
In force
39 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Houston County, AL

What was reported inside it

TimeReportWhereRemark
Mar 27, 3:43 PM CDTHAIL 1.75Estothel, ALREPORTED BY SPOTTER NEAR HWY 52...ESTOTHEL COMMUNITY.
Mar 27, 4:05 PM CDTHAIL 1.75Piney Grove, AL
Mar 27, 4:10 PM CDTHAIL 2.75Piney Grove, AL

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 27, 8:55 AM CDTSevere Thunderstorm WatchSPC7 hr
Mar 27, 3:27 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.6 hours before the alert went out and 185 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 2011-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1068 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 2011-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.1939587897Sfc1 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
1068 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.0

Open this sounding in Storm Lab

The text

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

844 
WUUS52 KTAE 272036
SVRTAE
ALC031-045-061-069-272115-
/O.NEW.KTAE.SV.W.0033.110327T2036Z-110327T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
336 PM CDT SUN MAR 27 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN COFFEE COUNTY IN SOUTHEAST ALABAMA...
  SOUTHWESTERN DALE COUNTY IN SOUTHEAST ALABAMA...
  THIS INCLUDES THE CITIES OF...LOWE ARMY HELIPORT...HANCHEY ARMY
  HELIPORT...
  GENEVA COUNTY IN SOUTHEAST ALABAMA...
  EXTREME NORTHWESTERN HOUSTON COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 415 PM CDT

* AT 330 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING TENNIS BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 21
  MILES WEST OF SAMSON...OR 9 MILES SOUTHEAST OF ANDALUSIA...AND
  MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW
  BROCKTON...LEVEL PLAINS...HARTFORD...GENEVA...FORT RUCKER...
  ENTERPRISE AND DALEVILLE

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF
A SEVERE THUNDERSTORM IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY IN A STURDY STRUCTURE.

LAT...LON 3135 8620 3146 8559 3101 8565 3104 8620
TIME...MOT...LOC 2036Z 275DEG 34KT 3121 8631

$$

85-GIBBS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 12:14 PM CDTSpecial Weather StatementTAECoffee, Dale61 min
Mar 27, 12:40 PM CDTSevere Thunderstorm WarningTAEDale, Henry50 min
Mar 27, 1:31 PM CDTSevere Thunderstorm WarningTAEHenry44 min
Mar 27, 1:33 PM CDTSevere Thunderstorm WarningTAEDale, Henry, Houston42 min
Mar 27, 2:13 PM CDTSevere Thunderstorm WarningTAEHenry, Houston47 min
Mar 27, 2:38 PM CDTSevere Thunderstorm WarningTAECoffee22 min
Mar 27, 2:59 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Houston46 min
Mar 27, 3:35 PM CDTSevere Thunderstorm WarningTAEDale, Geneva, Henry, Houston40 min
Mar 27, 4:14 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Houston46 min
Mar 27, 4:17 PM CDTSevere Thunderstorm WarningTAEHouston43 min
Mar 27, 4:48 PM CDTSevere Thunderstorm WarningTAEGeneva42 min
Mar 27, 5:00 PM CDTSevere Thunderstorm WarningTAEHouston14 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.