Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 13, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 5, 2011, 11:54 AM CST for Greene County, Mississippi; Washington County, Alabama. It was in force for 50 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
- Mar 5, 2011, 11:54 AM CST (17:54 UTC)
- Expired
- Mar 5, 2011, 12:44 PM CST
- In force
- 50 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Washington County, AL, Greene County, MS
The radar
The Mobile radar (KMOB), 76 km from the middle of the area, began a volume at 17:57 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 5, 8:54 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.9 hours before the alert went out and 163 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.
- Mixed-layer CAPE
- 960 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 451 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
847
WUUS54 KMOB 051754
SVRMOB
ALC129-MSC041-051845-
/O.NEW.KMOB.SV.W.0013.110305T1754Z-110305T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1154 AM CST SAT MAR 5 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
WEST CENTRAL WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 1245 PM CST
* AT 1153 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR LEAKESVILLE...OR 16 MILES
NORTHEAST OF MCLAIN...AND MOVING NORTHEAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CLARK AROUND NOON CST...
OLD AVERA AROUND 1210 PM CST...
KNOBTOWN AROUND 1215 PM CST...
ESCATAWPA AND FOUR POINT AROUND 1220 PM CST...
FRUITDALE AROUND 1225 PM CST...
YELLOW PINE AROUND 1230 PM CST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 3146 8839 3131 8833 3113 8866 3120 8869
3135 8873
TIME...MOT...LOC 1754Z 220DEG 23KT 3122 8858
$$2 follow-up statements
031
WWUS54 KMOB 051817
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1217 PM CST SAT MAR 5 2011
ALC129-MSC041-051845-
/O.CON.KMOB.SV.W.0013.000000T0000Z-110305T1845Z/
WASHINGTON AL-GREENE MS-
1217 PM CST SAT MAR 5 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CST
FOR NORTHEASTERN GREENE AND WEST CENTRAL WASHINGTON COUNTIES...
AT 1216 PM CST...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OVER 60
MPH. THIS STORM WAS NEAR KNOBTOWN...OR ABOUT 15 MILES SOUTHWEST OF
CHATOM...MOVING NORTHEAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE OVER...
RURAL WESTERN WASHINGTON COUNTY AT 1230 PM CST
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE
LOWEST FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY
OR A ROOM SUCH AS A CLOSET OR BATHROOM.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.
LAT...LON 3134 8862 3140 8856 3146 8839 3136 8835
3125 8844 3124 8846
TIME...MOT...LOC 1817Z 215DEG 32KT 3137 8847
$$087
WWUS54 KMOB 051844
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1244 PM CST SAT MAR 5 2011
ALC129-MSC041-051853-
/O.CAN.KMOB.SV.W.0013.000000T0000Z-110305T1845Z/
WASHINGTON AL-GREENE MS-
1244 PM CST SAT MAR 5 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GREENE AND WEST
CENTRAL WASHINGTON COUNTIES IS CANCELLED...
THUNDERSTORMS WITH OCCASIONAL HEAVY RAIN WILL CONTINUE THIS
AFTERNOON ACROSS THE AREA. SOME STORMS POSSIBLY BECOMING SEVERE AT
TIMES. A TORNADO WATCH CONTINUES UNTIL 4 PM CST.
LAT...LON 3134 8862 3140 8856 3146 8839 3136 8835
3125 8844 3124 8846
TIME...MOT...LOC 1843Z 220DEG 23KT 3146 8834
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 9:15 AM CST | Severe Thunderstorm Warning | MOB | George, Perry, Stone | 26 min |
| Mar 5, 9:26 AM CST | Areal Flood Advisory | MOB | Stone | 2 hr |
| Mar 5, 10:04 AM CST | Tornado Warning | MOB | Greene, Perry | 41 min |
| Mar 5, 10:42 AM CST | Flash Flood Warning | MOB | Perry | 2 hr |
| Mar 5, 10:46 AM CST | Tornado Warning | MOB | Greene | 44 min |
| Mar 5, 11:26 AM CST | Areal Flood Advisory | MOB | Greene | 2 hr |
| Mar 5, 11:58 AM CST | Areal Flood Advisory | MOB | Greene | 2 hr |
| Mar 5, 12:50 PM CST | Flash Flood Warning | MOB | Greene, Perry | 3 hr |
| Mar 5, 1:16 PM CST | Flash Flood Watch | MOB | George, Greene, Perry, Stone, Wayne | 6 hr |
| Mar 5, 1:39 PM CST | Areal Flood Advisory | MOB | Greene, Perry, Wayne | 2 hr |
| Mar 5, 2:50 PM CST | Flash Flood Warning | MOB | Stone | 4 hr |
| Mar 5, 3:23 PM CST | Flash Flood Warning | MOB | Greene, Perry, Wayne | 3 hr |
| Mar 5, 3:48 PM CST | Flash Flood Warning | MOB | Greene, Perry | 3 hr |
| Mar 5, 4:17 PM CST | Areal Flood Advisory | MOB | George | 118 min |
| Mar 5, 3:27 PM CST | Marine Weather Statement | MOB | 3 hr | |
| Mar 5, 3:40 PM CST | Special Marine Warning | MOB | 50 min | |
| Mar 5, 3:59 PM CST | Special Marine Warning | MOB | 61 min | |
| Mar 5, 4:17 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 58 min |
| Mar 5, 4:32 PM CST | Special Marine Warning | MOB | 58 min | |
| Mar 5, 5:01 PM CST | Special Marine Warning | MOB | 32 min | |
| Mar 5, 5:44 PM CST | Special Marine Warning | MOB | 91 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.