Alert archive / Mississippi / Tornado Watches in 2007
Tornado Watch 19
The Storm Prediction Center issued this tornado watch at Feb 13, 2007, 2:43 AM CST for 12 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 24 counties in Mississippi. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 13, 2007, 2:43 AM CST (08:43 UTC)
- Expired
- Feb 13, 2007, 12:45 PM CST
- In force
- 10 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 39 counties
Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Amite County, MS, Clarke County, MS, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 87 km from the middle of the area, began a volume at 08:42 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
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 3:00 AM CST | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 45 min |
| Feb 13, 3:33 AM CST | Severe Thunderstorm Warning | JAN | Lawrence, Lincoln | 42 min |
| Feb 13, 3:39 AM CST | Severe Thunderstorm Warning | JAN | Scott, Smith | 36 min |
| Feb 13, 3:48 AM CST | Tornado Warning | JAN | Scott, Smith | 27 min |
| Feb 13, 3:54 AM CST | Tornado Warning | LIX | Pearl River | 36 min |
| Feb 13, 4:07 AM CST | Severe Thunderstorm Warning | JAN | Jefferson Davis, Marion | 38 min |
| Feb 13, 4:15 AM CST | Tornado Warning | JAN | Jefferson Davis | 27 min |
| Feb 13, 4:35 AM CST | Tornado Warning | JAN | Forrest | 55 min |
| Feb 13, 4:36 AM CST | Tornado Warning | LIX | Pearl River | 24 min |
| Feb 13, 4:54 AM CST | Tornado Warning | MOB | Stone | 36 min |
| Feb 13, 4:58 AM CST | Severe Thunderstorm Warning | JAN | Marion | 37 min |
| Feb 13, 5:15 AM CST | Severe Thunderstorm Warning | MOB | Wayne | 45 min |
| Feb 13, 5:20 AM CST | Severe Thunderstorm Warning | JAN | Clarke | 40 min |
| Feb 13, 5:27 AM CST | Severe Thunderstorm Warning | JAN | Lamar | 33 min |
| Feb 13, 5:32 AM CST | Tornado Warning | MOB | Perry | 43 min |
| Feb 13, 5:34 AM CST | Tornado Warning | LIX | Hancock, Harrison | 26 min |
| Feb 13, 5:46 AM CST | Severe Thunderstorm Warning | JAN | Forrest | 29 min |
| Feb 13, 6:15 AM CST | Tornado Warning | MOB | Greene, Perry | 60 min |
| Feb 13, 6:27 AM CST | Tornado Warning | LIX | Harrison | 63 min |
| Feb 13, 6:49 AM CST | Severe Thunderstorm Warning | MOB | Washington | 56 min |
| Feb 13, 7:04 AM CST | Tornado Warning | LIX | Jackson | 41 min |
| Feb 13, 7:16 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 44 min |
| Feb 13, 7:17 AM CST | Severe Thunderstorm Warning | LIX | Harrison | 28 min |
| Feb 13, 7:31 AM CST | Tornado Warning | LIX | Jackson | 29 min |
| Feb 13, 7:53 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 67 min |
| Feb 13, 8:53 AM CST | Severe Thunderstorm Warning | MOB | Baldwin | 52 min |
| Feb 13, 9:56 AM CST | Severe Thunderstorm Warning | MOB | Santa Rosa | 34 min |
| Feb 13, 11:15 AM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 30 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, 8.7 hours before the alert went out and 142 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
- 807 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 145 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 130843
SEL9
SPC WW 130843
ALZ000-FLZ000-MSZ000-CWZ000-131700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 19
NWS STORM PREDICTION CENTER NORMAN OK
245 AM CST TUE FEB 13 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHWEST ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHERN MISSISSIPPI
COASTAL WATERS
EFFECTIVE THIS TUESDAY MORNING FROM 245 AM UNTIL 1100 AM CST.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST SOUTHWEST OF MC
COMB MISSISSIPPI TO 25 MILES NORTHEAST OF CRESTVIEW FLORIDA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).
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 18...
DISCUSSION...SEVERE THUNDERSTORMS INCLUDING SUPERCELLS CONTINUE TO
DEVELOP EWD ACROSS SRN LA INTO SRN MS WITH APPROACH OF UPPER TROUGH.
WARM FRONT MOVING INLAND ACROSS WATCH AREA WITH AIR MASS BECOMING
SUFFICIENTLY UNSTABLE TO SUPPORT TORNADOS WITH SUPERCELLS THAT
DEVELOP GIVEN FAVORABLE SHEAR PROFILES IN PLACE.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HALESSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 2:05 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 55 min |
| Feb 13, 4:50 AM CST | Mesoscale Discussion | SPC | Dallas, Greene, Hale, Marengo, Perry, Sumter | 85 min |
| Feb 13, 5:26 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 94 min |
| Feb 13, 7:24 AM CST | Mesoscale Discussion | SPC | Baldwin, Conecuh, Escambia, Mobile, Monroe | 96 min |
| Feb 13, 9:07 AM CST | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 7 hr |
| Feb 13, 11:03 AM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lamar, Marion | 87 min |
| Feb 13, 12:08 PM CST | Mesoscale Discussion | SPC | Coffee, Dale, Geneva, Henry, Houston | 67 min |
| Feb 13, 12:49 PM CST | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Blount, Chilton, Colbert, Cullman and 21 more | 6 hr |
| Feb 13, 5:09 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Bullock, Butler, Chilton and 21 more | 96 min |
| Feb 13, 5:18 PM CST | Tornado Watch | SPC | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 29 more | 4 hr |
| Feb 13, 8:52 AM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more | 53 min |
| Feb 13, 10:17 AM CST | Mesoscale Discussion | SPC | Charlotte, DeSoto, Hardee, Hernando, Hillsborough, Lee and 5 more | 88 min |
| Feb 13, 11:54 AM CST | Severe Thunderstorm Watch | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Glades and 25 more | 5 hr |
| Feb 13, 2:15 PM CST | Mesoscale Discussion | SPC | Brevard, Flagler, Glades, Hardee, Highlands, Indian River and 8 more | 60 min |
| Feb 13, 2:34 PM CST | Severe Thunderstorm Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 5 more | 5 hr |
| Feb 12, 6:27 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more | 2 hr |
| Feb 12, 9:38 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Assumption, Avoyelles, Beauregard, Calcasieu and 16 more | 97 min |
| Feb 12, 10:39 PM CST | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Calcasieu and 30 more | 7 hr |
| Feb 13, 2:26 AM CST | Mesoscale Discussion | SPC | Ascension, Assumption, Lafourche, Livingston, Orleans, Saint Charles and 5 more | 64 min |
Nearby
Tornado Watches in Mississippi, 2007Tornado Watches in Alabama, 2007Tornado Watches in Florida, 2007Every tornado watch in 2007
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.