Alert archive / Alabama / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 4, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 18, 2015, 11:33 PM CDT for Choctaw County, Clarke County, Alabama. It was in force for 27 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 18, 2015, 11:33 PM CDT (04:33 UTC)
- Expired
- Mar 19, 2015, 12:00 AM CDT
- In force
- 27 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Choctaw County, AL, Clarke County, AL
The radar
The Mobile radar (KMOB), 149 km from the middle of the area, began a volume at 04:34 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
Birmingham, AL (KBMX), launched 00:00Z, 4.6 hours before the alert went out and 180 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1973 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
895
WUUS54 KMOB 190433
SVRMOB
ALC023-025-190500-
/O.NEW.KMOB.SV.W.0004.150319T0433Z-150319T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1133 PM CDT WED MAR 18 2015
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CHOCTAW COUNTY IN SOUTHWESTERN ALABAMA...
NORTHWESTERN CLARKE COUNTY IN SOUTHWESTERN ALABAMA...
* UNTIL MIDNIGHT CDT
* AT 1131 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
CRANDALL TO 9 MILES WEST OF GILBERTOWN TO 7 MILES NORTHEAST OF
WAYNESBORO...AND MOVING EAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...
BUTLER...GILBERTOWN...TOXEY...NEEDHAM...HODGEWOOD...SOUWILPA...
FLATWOOD...OKATUPPA...ISNEY...LOU...LAND AND PLEASANT HILL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
LAT...LON 3210 8805 3208 8804 3206 8807 3207 8808
3206 8812 3201 8811 3199 8809 3201 8809
3199 8807 3199 8794 3198 8794 3182 8807
3176 8847 3204 8845 3214 8804
TIME...MOT...LOC 0431Z 257DEG 35KT 3204 8849 3188 8848 3175 8856
$$
JP1 follow-up statement
927
WWUS54 KMOB 190505
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1205 AM CDT THU MAR 19 2015
ALC023-025-190514-
/O.EXP.KMOB.SV.W.0004.000000T0000Z-150319T0500Z/
CHOCTAW AL-CLARKE AL-
1205 AM CDT THU MAR 19 2015
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHOCTAW AND
NORTHWESTERN CLARKE COUNTIES HAS EXPIRED...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.
LAT...LON 3210 8805 3208 8804 3206 8807 3207 8808
3206 8812 3201 8811 3199 8809 3201 8809
3199 8807 3199 8794 3198 8794 3182 8807
3176 8847 3204 8845 3214 8804
TIME...MOT...LOC 0500Z 257DEG 35KT 3204 8849 3188 8848 3175 8856
$$
JPThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 12:04 AM CDT | Special Weather Statement | MOB | Choctaw | 56 min |
| Mar 19, 1:52 AM CDT | Special Weather Statement | MOB | Clarke | 23 min |
| Mar 19, 6:14 AM CDT | Special Weather Statement | MOB | Baldwin | 31 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2015Every severe thunderstorm warning in 2015
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.