Alert archive / Mississippi / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 63, NWS Mobile, AL

May 11, 2007George County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 11, 2007, 5:41 PM CDT for George County, Mississippi. It was in force for 37 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
May 11, 2007, 5:41 PM CDT (22:41 UTC)
Expired
May 11, 2007, 6:18 PM CDT
In force
37 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County George County, MS

The radar

The Mobile radar (KMOB), 32 km from the middle of the area, began a volume at 22:42 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 131 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, Slidell Radar S, LA at 12:00Z on 2007-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 297 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, Slidell Radar S, LA at 12:00Z on 2007-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
297 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
1367 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
70 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.

000 
WUUS54 KMOB 112242
SVRMOB
MSC039-112330-
/O.NEW.KMOB.SV.W.0063.070511T2241Z-070511T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
541 PM CDT FRI MAY 11 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...

* UNTIL 630 PM CDT

* AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM DEVELOPING OVER EXTREME EASTERN GEORGE       
  COUNTY JUST...NORTHEAST OF SHIPMAN.  THIS STORM WILL BE CAPABLE OF 
  PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS TO NEAR 60 MPH.   
  THIS STORM WAS MOVING SLOWLY WEST AROUND 5 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHIPMAN BY 600 PM CDT...
  8 MILES NORTH OF AGRICOLA BY 605 PM CDT...
  EVANSTON AND LUCEDALE BY 630 PM CDT...

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 3075 8841 3098 8845 3100 8867 3074 8864

$$
2 follow-up statements
000 
WWUS54 KMOB 112259
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
558 PM CDT FRI MAY 11 2007

MSC039-112330-
/O.CON.KMOB.SV.W.0063.000000T0000Z-070511T2330Z/
GEORGE MS-
558 PM CDT FRI MAY 11 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHEASTERN GEORGE COUNTY...

AT 555 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...AND DAMAGING WINDS TO NEAR 60 MPH.  THIS STORM WAS LOCATED 
NEAR EVANSTON...OR JUST EAST OF LUCEDALE...MOVING WEST AT 5 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  EVANSTON THROUGH 625 PM CDT...
  LUCEDALE THROUGH 630 PM CDT...

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 3086 8843 3098 8845 3100 8874 3085 8869

$$
000 
WWUS54 KMOB 112318
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
615 PM CDT FRI MAY 11 2007

MSC039-112324-
/O.CAN.KMOB.SV.W.0063.000000T0000Z-070511T2330Z/
GEORGE MS-
615 PM CDT FRI MAY 11 2007

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

AT 615 PM CDT...THE THUNDERSTORM NEAR LUCEDALE HAD WEAKENED BELOW 
SEVERE LIMITS.  THE STORM IS STILL LIKELY PRODUCING VERY HEAVY 
RAINS...FREQUENT LIGHTNING STRIKES...GUSTY WINDS AROUND 40 MPH...AND 
SMALL HAIL.  THE STORM IS MOVING SLOWLY NORTHWEST AT 5 MPH.  

LAT...LON 3086 8843 3098 8845 3100 8874 3085 8869

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 3:05 PM CDTSevere Thunderstorm WarningMOBStone25 min
May 11, 3:54 PM CDTSevere Thunderstorm WarningMOBPerry, Stone51 min
May 11, 4:23 PM CDTSevere Thunderstorm WarningMOBGeorge52 min
May 11, 4:51 PM CDTSevere Thunderstorm WarningMOBStone29 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2007Every severe thunderstorm warning in 2007

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.