Alert archive / Alabama / Tornado Warnings in 2009
Tornado Warning 40, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Apr 19, 2009, 5:39 PM CDT for Clarke County, Alabama. It was in force for 40 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
- Apr 19, 2009, 5:39 PM CDT (22:39 UTC)
- Expired
- Apr 19, 2009, 6:19 PM CDT
- In force
- 40 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Clarke County, AL
The radar
The Mobile radar (KMOB), 117 km from the middle of the area, began a volume at 22:40 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 |
|---|---|---|---|
| Apr 19, 2:19 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.7 hours before the alert went out and 193 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
- 2056 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KMOB 192239 TORMOB ALC025-192345- /O.NEW.KMOB.TO.W.0040.090419T2239Z-090419T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOBILE AL 539 PM CDT SUN APR 19 2009 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA... THIS INCLUDES THE CITY OF GROVE HILL... * UNTIL 645 PM CDT * AT 536 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF WINN...OR ABOUT 15 MILES SOUTHWEST OF GROVE HILL...MOVING EAST AT 25 MPH. * THE TORNADO WILL BE NEAR... WINN BY 550 PM CDT... WHATELY BY 620 PM CDT... THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL OR DAMAGING STRAIGHT LINE WINDS. IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING... SEEK SHELTER IN A CULVERT...DITCH OR LOW DEPRESSION AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. LAT...LON 3160 8758 3157 8801 3167 8806 3184 8764 TIME...MOT...LOC 2239Z 260DEG 22KT 3162 8800 $$
1 follow-up statement
000 WWUS54 KMOB 192319 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 619 PM CDT SUN APR 19 2009 ALC025-192329- /O.CAN.KMOB.TO.W.0040.000000T0000Z-090419T2345Z/ CLARKE AL- 619 PM CDT SUN APR 19 2009 ...THE TORNADO WARNING FOR CENTRAL CLARKE COUNTY IS CANCELLED... A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. LAT...LON 3160 8758 3157 8801 3167 8806 3184 8764 TIME...MOT...LOC 2319Z 260DEG 22KT 3166 8772 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 1:38 PM CDT | Tornado Warning | MOB | Washington | 37 min |
| Apr 19, 2:36 PM CDT | Tornado Warning | MOB | Clarke, Washington | 39 min |
| Apr 19, 4:57 PM CDT | Severe Thunderstorm Warning | MOB | Monroe | 48 min |
| Apr 19, 5:20 PM CDT | Tornado Warning | MOB | Choctaw, Clarke, Washington | 40 min |
| Apr 19, 6:04 PM CDT | Tornado Warning | MOB | Clarke | 15 min |
| Apr 19, 6:18 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 27 min |
| Apr 19, 6:43 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 41 min |
| Apr 19, 6:44 PM CDT | Tornado Warning | MOB | Clarke, Monroe | 46 min |
Nearby
Tornado Warnings in Alabama, 2009Every tornado warning in 2009Tornadoes in 2009
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.