Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 64, NWS Mobile, AL

May 26, 2011George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 26, 2011, 12:45 PM CDT for George County, Mississippi; Mobile County, Alabama. It was in force for 45 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: May 26, 2011, 12:45 PM CDT (17:45 UTC)
Expired: May 26, 2011, 1:30 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 16 km from the middle of the area, began a volume at 17:46 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

Time	Report	Where	Remark
May 26, 1:13 PM CDT	HAIL 0.5	Wilmer, AL	SMALL MARBLE SIZE HAIL AT WILMER ELEMENTARY SCHOOL.

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.8 hours before the alert went out and 138 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3259 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 464 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.8

Open this sounding in Storm Lab

The text

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

194 
WUUS54 KMOB 261745
SVRMOB
ALC097-MSC039-261830-
/O.NEW.KMOB.SV.W.0064.110526T1745Z-110526T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1245 PM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF SARALAND...

* UNTIL 130 PM CDT

* AT 1241 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 15
  MILES NORTH OF ESCATAWPA...OR 10 MILES SOUTHEAST OF BASIN...AND
  MOVING NORTHEAST AT 30 MPH.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 12 AND 16.

&&

LAT...LON 3066 8842 3073 8843 3073 8864 3107 8835
      3081 8803 3063 8841
TIME...MOT...LOC 1745Z 222DEG 25KT 3073 8850

$$

1 follow-up statement

170 
WWUS54 KMOB 261817
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
117 PM CDT THU MAY 26 2011

MSC039-261827-
/O.CAN.KMOB.SV.W.0064.000000T0000Z-110526T1830Z/
GEORGE MS-
117 PM CDT THU MAY 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GEORGE COUNTY IS
CANCELLED...

LAT...LON 3078 8837 3082 8842 3107 8835 3081 8803
      3071 8824
TIME...MOT...LOC 1817Z 221DEG 29KT 3089 8827

$$

ALC097-261830-
/O.CON.KMOB.SV.W.0064.000000T0000Z-110526T1830Z/
MOBILE AL-
117 PM CDT THU MAY 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR NORTHERN MOBILE COUNTY...

AT 114 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR GEORGETOWN...OR 14 MILES WEST OF SARALAND...MOVING
NORTHEAST AT 35 MPH.

LAT...LON 3078 8837 3082 8842 3107 8835 3081 8803
      3071 8824
TIME...MOT...LOC 1817Z 221DEG 29KT 3089 8827

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 10:25 AM CDT	Severe Thunderstorm Warning	MOB	George	50 min
May 26, 12:43 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	47 min
May 26, 1:27 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	63 min
May 26, 1:47 PM CDT	Severe Thunderstorm Warning	MOB	Perry	20 min
May 26, 2:44 PM CDT	Flash Flood Warning	MOB	Wayne	3 hr
May 26, 4:23 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	37 min
May 26, 6:05 PM CDT	Severe Thunderstorm Warning	MOB	George, Stone	40 min
May 26, 12:14 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke	33 min
May 26, 12:22 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	27 min
May 26, 1:04 PM CDT	Severe Thunderstorm Warning	MOB	Butler	41 min
May 26, 1:24 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile, Washington	37 min
May 26, 1:29 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	46 min
May 26, 1:34 PM CDT	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	26 min
May 26, 2:43 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	62 min
May 26, 3:20 PM CDT	Tornado Warning	MOB	Mobile	40 min
May 26, 3:31 PM CDT	Special Marine Warning	MOB		59 min
May 26, 3:39 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	20 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011 Severe Thunderstorm Warnings in Alabama, 2011 Every 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.