Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 201, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 22, 2011, 6:21 PM CDT for Baldwin County, Alabama. It was in force for 16 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
- Aug 22, 2011, 6:21 PM CDT (23:21 UTC)
- Expired
- Aug 22, 2011, 6:37 PM CDT
- In force
- 16 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Baldwin County, AL
The radar
The Mobile radar (KMOB), 57 km from the middle of the area, began a volume at 23:21 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, 11.4 hours before the alert went out and 200 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
- 2680 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
188 WUUS54 KMOB 222321 SVRMOB ALC003-230000- /O.NEW.KMOB.SV.W.0201.110822T2321Z-110823T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 621 PM CDT MON AUG 22 2011 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA... * UNTIL 700 PM CDT * AT 618 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 12 MILES EAST OF ROBERTSDALE... OR 11 MILES WEST OF CANTONMENT...AND MOVING WEST AT 10 MPH. * LOCATIONS IMPACTED INCLUDE... ROBERTSDALE... LOXLEY... THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 44 AND 64. && LAT...LON 3056 8783 3079 8772 3063 8743 3048 8746 TIME...MOT...LOC 2321Z 112DEG 8KT 3059 8753 $$
1 follow-up statement
598 WWUS54 KMOB 222337 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 637 PM CDT MON AUG 22 2011 ALC003-222346- /O.CAN.KMOB.SV.W.0201.000000T0000Z-110823T0000Z/ BALDWIN AL- 637 PM CDT MON AUG 22 2011 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BALDWIN COUNTY IS CANCELLED... AT 635 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE WARNING HAS BEEN CANCELLED. LAT...LON 3056 8783 3079 8772 3063 8743 3048 8746 TIME...MOT...LOC 2336Z 112DEG 8KT 3060 8757 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 7:48 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 42 min |
| Aug 22, 5:04 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 25 min |
| Aug 22, 5:20 PM CDT | Severe Thunderstorm Warning | MOB | Monroe | 25 min |
| Aug 22, 5:39 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 31 min |
| Aug 22, 5:53 PM CDT | Special Marine Warning | MOB | 52 min | |
| Aug 22, 6:00 PM CDT | Severe Thunderstorm Warning | MOB | Escambia, Monroe | 45 min |
| Aug 22, 6:36 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 39 min |
| Aug 22, 6:54 PM CDT | Special Marine Warning | MOB | 51 min | |
| Aug 22, 6:55 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.