Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 199, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 4, 2012, 7:31 PM CDT for Greene County, Perry County, Wayne County, Mississippi. It was in force for 59 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
- Sep 4, 2012, 7:31 PM CDT (00:31 UTC)
- Expired
- Sep 4, 2012, 8:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Greene County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 00:33 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 00:00Z, 0.5 hours before the alert went out and 156 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
- 2069 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
563 WUUS54 KMOB 050031 SVRMOB MSC041-111-153-050130- /O.NEW.KMOB.SV.W.0199.120905T0031Z-120905T0130Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 731 PM CDT TUE SEP 4 2012 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI... NORTHEASTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI... CENTRAL WAYNE COUNTY IN SOUTHEAST MISSISSIPPI... * UNTIL 830 PM CDT * AT 728 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OVER 60 MPH WAS LOCATED 2 MILES WEST OF WAYNESBORO...OR 7 MILES NORTH OF CLARA...AND MOVING SOUTH AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... WAYNESBORO... CLARA... BEAUMONT... LAT...LON 3113 8869 3117 8893 3175 8876 3171 8854 TIME...MOT...LOC 0032Z 010DEG 30KT 3164 8869 $$
1 follow-up statement
205 WWUS54 KMOB 050121 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 821 PM CDT TUE SEP 4 2012 MSC041-111-153-050131- /O.EXP.KMOB.SV.W.0199.000000T0000Z-120905T0130Z/ WAYNE MS-PERRY MS-GREENE MS- 821 PM CDT TUE SEP 4 2012 ...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR NORTHWESTERN GREENE...NORTHEASTERN PERRY AND CENTRAL WAYNE COUNTIES... AT 816 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN GREENE...NORTHEASTERN PERRY AND CENTRAL WAYNE COUNTIES HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 830 PM CDT. LAT...LON 3113 8869 3117 8893 3175 8876 3171 8854 TIME...MOT...LOC 0121Z 010DEG 30KT 3124 8877 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 7:21 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Wayne | 54 min |
| Sep 4, 7:39 PM CDT | Severe Thunderstorm Warning | MOB | Stone | 21 min |
| Sep 4, 8:06 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene | 34 min |
| Sep 4, 8:22 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene | 18 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2012Every severe thunderstorm warning in 2012
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.