Alert archive / Mississippi / Tornado Warnings in 2011
Tornado Warning 115, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Sep 4, 2011, 2:01 PM CDT for 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, 2011, 2:01 PM CDT (19:01 UTC)
- Expired
- Sep 4, 2011, 3:00 PM CDT
- In force
- 59 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Wayne County, MS
The radar
The Mobile radar (KMOB), 121 km from the middle of the area, began a volume at 19:02 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 |
|---|---|---|---|
| Sep 4, 5:05 AM CDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 7.0 hours before the alert went out and 147 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
- 307 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 490 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 279 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
693 WFUS54 KMOB 041901 TORMOB MSC153-042000- /O.NEW.KMOB.TO.W.0115.110904T1901Z-110904T2000Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOBILE AL 201 PM CDT SUN SEP 4 2011 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL WAYNE COUNTY IN SOUTHEAST MISSISSIPPI... * UNTIL 300 PM CDT * AT 158 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES SOUTH OF WAYNESBORO...OR 4 MILES SOUTH OF CLARA...MOVING NORTH AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... WAYNESBORO... CLARA... PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT SUNDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI. && LAT...LON 3186 8863 3146 8859 3143 8879 3183 8890 TIME...MOT...LOC 1900Z 171DEG 27KT 3154 8871 $$
1 follow-up statement
163 WWUS54 KMOB 041957 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 257 PM CDT SUN SEP 4 2011 MSC153-042006- /O.EXP.KMOB.TO.W.0115.000000T0000Z-110904T2000Z/ WAYNE MS- 257 PM CDT SUN SEP 4 2011 ...THE TORNADO WARNING FOR CENTRAL WAYNE COUNTY WILL EXPIRE AT 300 PM CDT... THE SERIES OF STORMS THAT PROMPTED THE WARNING ARE EXHIBITING NO FURTHER ROTATION CAPABLE OF DEVELOPING TORNADOES. FUTURE WARNINGS ARE POSSIBLE AS MORE STORMS DEVELOP FROM THE SOUTH...BUT AS OF RIGHT NOW...THIS WARNING WILL BE ALLOWED TO EXPIRE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT SUNDAY AFTERNOON FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI. LAT...LON 3186 8863 3146 8859 3143 8879 3183 8890 TIME...MOT...LOC 1956Z 171DEG 27KT 3196 8879 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 7:53 PM CDT | Areal Flood Warning | MOB | George, Greene, Perry, Stone | 6 hr |
| Sep 4, 12:59 AM CDT | Tornado Warning | MOB | George | 61 min |
| Sep 4, 1:09 AM CDT | Flash Flood Warning | MOB | Stone | 3 hr |
| Sep 4, 3:10 AM CDT | Tornado Warning | MOB | George | 50 min |
| Sep 4, 8:40 AM CDT | Tornado Warning | MOB | Greene, Perry | 35 min |
| Sep 4, 9:14 AM CDT | Tornado Warning | MOB | Perry, Wayne | 46 min |
| Sep 4, 9:54 AM CDT | River Flood Warning | MOB | George, Greene, Wayne | 25 hr |
| Sep 4, 11:13 AM CDT | Tornado Warning | MOB | Perry | 62 min |
| Sep 4, 11:19 AM CDT | Tornado Warning | MOB | Greene, Perry | 56 min |
| Sep 4, 11:41 AM CDT | Tornado Warning | MOB | Greene, Wayne | 64 min |
| Sep 4, 12:19 PM CDT | Tornado Warning | MOB | Greene | 56 min |
| Sep 4, 1:18 PM CDT | Tornado Warning | MOB | Wayne | 42 min |
| Sep 4, 1:22 PM CDT | Flash Flood Warning | MOB | Wayne | 3 hr |
| Sep 4, 1:57 PM CDT | Flash Flood Warning | MOB | George, Greene | 3 hr |
Nearby
Tornado Warnings in Mississippi, 2011Every tornado warning in 2011Tornadoes 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.