Alert archive / Alabama / Tornado Watches in 2008
Tornado Watch 62
The Storm Prediction Center issued this tornado watch at Feb 17, 2008, 5:26 AM CST for 20 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 17, 2008, 5:26 AM CST (11:26 UTC)
- Expired
- Feb 17, 2008, 12:34 PM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 28 counties
Autauga County, AL, Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dallas County, AL, Escambia County, AL, Greene County, AL, Hale County, AL, Lowndes County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Perry County, AL, Sumter County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 11:26 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 6:11 AM CST | Severe Thunderstorm Warning | MOB | Greene, Perry, Wayne | 49 min |
| Feb 17, 6:31 AM CST | Severe Thunderstorm Warning | MOB | Wayne | 29 min |
| Feb 17, 7:00 AM CST | Severe Thunderstorm Warning | MOB | Washington | 45 min |
| Feb 17, 10:37 AM CST | Tornado Warning | MOB | Baldwin | 38 min |
| Feb 17, 10:59 AM CST | Severe Thunderstorm Warning | BMX | Bibb, Greene, Hale, Marengo, Perry, Tuscaloosa | 31 min |
| Feb 17, 11:03 AM CST | Tornado Warning | MOB | Choctaw, Washington | 27 min |
| Feb 17, 11:11 AM CST | Tornado Warning | MOB | Baldwin | 49 min |
| Feb 17, 11:13 AM CST | Severe Thunderstorm Warning | BMX | Dallas, Hale, Marengo, Perry | 32 min |
| Feb 17, 11:24 AM CST | Severe Thunderstorm Warning | BMX | Autauga, Bibb, Chilton, Coosa, Dallas, Elmore and 8 more | 66 min |
| Feb 17, 11:25 AM CST | Tornado Warning | MOB | Clarke | 35 min |
| Feb 17, 11:30 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 60 min |
| Feb 17, 11:40 AM CST | Tornado Warning | BMX | Dallas, Marengo, Perry | 35 min |
| Feb 17, 11:46 AM CST | Tornado Warning | MOB | Baldwin | 59 min |
| Feb 17, 11:58 AM CST | Tornado Warning | MOB | Clarke, Wilcox | 47 min |
| Feb 17, 12:08 PM CST | Tornado Warning | BMX | Autauga, Chilton, Dallas, Perry | 52 min |
| Feb 17, 12:11 PM CST | Tornado Warning | BMX | Dallas, Marengo | 49 min |
| Feb 17, 12:28 PM CST | Severe Thunderstorm Warning | BMX | Autauga, Chilton, Clay, Cleburne, Coosa, Elmore and 5 more | 62 min |
| Feb 17, 12:29 PM CST | Tornado Warning | MOB | Escambia | 61 min |
| Feb 17, 12:30 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 45 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.4 hours before the alert went out and 202 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
- 1066 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 171130
SEL2
SPC WW 171130
ALZ000-FLZ000-MSZ000-CWZ000-171900-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 62
NWS STORM PREDICTION CENTER NORMAN OK
530 AM CST SUN FEB 17 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN AND CENTRAL ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST MISSISSIPPI
COASTAL WATERS
EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 530 AM UNTIL 100
PM CST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHWEST OF
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...WW 61...
DISCUSSION...AIR MASS WILL CONTINUE TO MOISTEN THIS MORNING AIDING
IN SUFFICIENT DESTABILIZATION TO MAINTAIN EASTWARD MOVING SQUALL
LINE INTO SOUTHEASTERN MS...SOUTHWESTERN AL AND THE WRN FL
PANHANDLE. INCREASING SLY LOW LEVEL WINDS COMBINED WITH STRONG FLOW
ALOFT WILL SUPPORT DEEP LAYER AND LOW LEVEL SHEAR FAVORABLE FOR
ROTATING UPDRAFTS AND AN ATTENDANT THREAT FOR ISOLATED TORNADOES AND
DAMAGING WIND.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 23050.
...PETERS/CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 2:13 AM CST | Mesoscale Discussion | SPC | Mobile | 32 min |
| Feb 17, 4:19 AM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lamar, Marion, Pickens | 56 min |
| Feb 17, 5:05 AM CST | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Conecuh, Dallas, Escambia and 8 more | 55 min |
| Feb 17, 7:13 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Butler, Chilton, Choctaw, Clarke and 16 more | 62 min |
| Feb 17, 9:43 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Butler, Chilton, Choctaw, Clarke and 17 more | 62 min |
| Feb 17, 12:14 PM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Chambers, Clay, Coffee and 16 more | 91 min |
| Feb 17, 12:32 PM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 28 more | 7 hr |
| Feb 17, 2:45 PM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 22 more | 90 min |
| Feb 17, 5:19 PM CST | Mesoscale Discussion | SPC | Chambers, Dale, Geneva, Henry, Houston | 86 min |
| Feb 17, 5:58 PM CST | Tornado Watch | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 6 more | 8 hr |
| Feb 16, 7:18 PM CST | Mesoscale Discussion | SPC | Allen, Beauregard, Calcasieu, Cameron, De Soto, Jefferson Davis and 4 more | 87 min |
| Feb 16, 8:25 PM CST | Tornado Watch | SPC | Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 4 more | 6 hr |
| Feb 16, 10:41 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 26 more | 94 min |
| Feb 16, 11:30 PM CST | Severe Thunderstorm Watch | SPC | Ascension, Assumption, Avoyelles, Caldwell, Catahoula, Concordia and 25 more | 6 hr |
| Feb 17, 1:33 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Cameron, Evangeline, Jefferson Davis, Rapides and 1 more | 57 min |
| Feb 17, 2:45 AM CST | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 19 more | 5 hr |
Nearby
Tornado Watches in Alabama, 2008Tornado Watches in Mississippi, 2008Tornado Watches in Florida, 2008Every tornado watch in 2008
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.