Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 67, NWS Mobile, AL

May 26, 2011Wayne County, Mississippi; Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 26, 2011, 1:27 PM CDT for Wayne County, Mississippi; Choctaw County, Alabama. It was in force for 63 min. 2 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
May 26, 2011, 1:27 PM CDT (18:27 UTC)
Expired
May 26, 2011, 2:30 PM CDT
In force
63 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Choctaw County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 128 km from the middle of the area, began a volume at 18:27 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.

What was reported inside it

TimeReportWhereRemark
May 26, 1:27 PM CDTHAIL 0.5Toxey, ALPEA TO SMALL MARBLE SIZE HAIL IN TOXEY AND NEAR GILBERTOWN
May 26, 1:46 PM CDTTSTM WND DMG3 E Waynesboro, MSSEVERAL LARGE TREES DOWN AND A BARN WAS PARTIALLY DESTROYED.

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

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 6.5 hours before the alert went out and 166 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, Jackson, MS at 12:00Z on 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1916 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, Jackson, MS at 12:00Z on 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 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
1916 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
2.1
Supercell composite
14.2

Open this sounding in Storm Lab

The text

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

341 
WUUS54 KMOB 261827
SVRMOB
ALC023-MSC153-261930-
/O.NEW.KMOB.SV.W.0067.110526T1827Z-110526T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
127 PM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WAYNESBORO...
  SOUTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 230 PM CDT

* AT 127 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  WAYNESBORO...OR 10 MILES NORTHWEST OF ROBINSON JUNCTION...AND
  MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SILAS AROUND 220 PM CDT...
  GILBERTOWN...TOXEY...CHAPPELL HILL AND WIMBLY AROUND 230 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 3186 8815 3184 8816 3170 8842 3170 8846
      3168 8846 3158 8864 3179 8874 3186 8863
      3189 8848 3196 8847 3211 8825
TIME...MOT...LOC 1827Z 233DEG 16KT 3171 8861

$$

PURDY

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 10:25 AM CDTSevere Thunderstorm WarningMOBGeorge50 min
May 26, 12:43 PM CDTSevere Thunderstorm WarningMOBWayne47 min
May 26, 12:45 PM CDTSevere Thunderstorm WarningMOBGeorge45 min
May 26, 1:47 PM CDTSevere Thunderstorm WarningMOBPerry20 min
May 26, 2:44 PM CDTFlash Flood WarningMOBWayne3 hr
May 26, 4:23 PM CDTSevere Thunderstorm WarningMOBGeorge, Greene37 min
May 26, 6:05 PM CDTSevere Thunderstorm WarningMOBGeorge, Stone40 min
May 26, 12:14 PM CDTSevere Thunderstorm WarningMOBChoctaw, Clarke33 min
May 26, 12:22 PM CDTSevere Thunderstorm WarningMOBClarke, Wilcox27 min
May 26, 1:04 PM CDTSevere Thunderstorm WarningMOBButler41 min
May 26, 1:24 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile, Washington37 min
May 26, 1:29 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw46 min
May 26, 1:34 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw26 min
May 26, 2:43 PM CDTSevere Thunderstorm WarningMOBMobile62 min
May 26, 3:20 PM CDTTornado WarningMOBMobile40 min
May 26, 3:31 PM CDTSpecial Marine WarningMOB59 min
May 26, 3:39 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington20 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011Severe 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; radar from the NEXRAD Level II archive.