Alert archive / Alabama / Tornado Watches in 2016
Tornado Watch 67
The Storm Prediction Center issued this tornado watch at Mar 31, 2016, 8:43 AM CDT for 8 counties in Alabama; Escambia County, Santa Rosa County, Florida; 4 counties in Mississippi. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 31, 2016, 8:43 AM CDT (13:43 UTC)
- Expired
- Mar 31, 2016, 2:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Baldwin County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Escambia County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 13:47 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
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 9:08 AM CDT | Severe Thunderstorm Warning | MOB | Mobile, Washington | 67 min |
| Mar 31, 10:06 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Clarke, Escambia, Mobile, Monroe, Washington | 54 min |
| Mar 31, 10:58 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Clarke, Conecuh, Escambia, Monroe | 62 min |
| Mar 31, 11:57 AM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 63 min |
| Mar 31, 12:59 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 61 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 12:00Z, 1.7 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
- 596 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 466 m²/s²
- 0-3 km storm-relative helicity
- 554 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 8.6
The text
As transmitted.
993 WWUS20 KWNS 311341 SEL7 SPC WW 311341 ALZ000-FLZ000-MSZ000-CWZ000-311900- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 67 NWS STORM PREDICTION CENTER NORMAN OK 845 AM CDT THU MAR 31 2016 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHWEST ALABAMA THE WESTERN FLORIDA PANHANDLE EXTREME SOUTHEAST MISSISSIPPI COASTAL WATERS * EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 845 AM UNTIL 200 PM CDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE SUMMARY...CLUSTER OF STORMS IN SOUTHEAST MISSISSIPPI WILL LIKELY PERSIST FOR SEVERAL MORE HOURS WHILE MOVING EASTWARD INTO SOUTHWEST ALABAMA. THE STORM ENVIRONMENT WILL SUPPORT THE POSSIBILITY OF A COUPLE OF TORNADOES...AS WELL AS ISOLATED DAMAGING WINDS AND LARGE HAIL. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF EVERGREEN ALABAMA TO 10 MILES EAST SOUTHEAST OF MOBILE ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 66... 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 450. MEAN STORM MOTION VECTOR 27030. ...THOMPSON
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 7:47 AM CDT | Mesoscale Discussion | SPC | Washington | 58 min |
| Mar 31, 8:37 AM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 53 min |
| Mar 31, 11:29 AM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Coffee, Conecuh, Covington, Crenshaw and 5 more | 2 hr |
| Mar 31, 1:32 PM CDT | Mesoscale Discussion | SPC | Baldwin, Covington, Escambia, Geneva | 58 min |
| Mar 31, 4:47 PM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Chilton, Choctaw, Clarke, Colbert and 19 more | 58 min |
| Mar 31, 5:58 PM CDT | Tornado Watch | SPC | Autauga, Bibb, Blount, Chilton, Choctaw, Clarke and 33 more | 7 hr |
| Mar 31, 6:52 PM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Choctaw, Colbert, Cullman, Dallas and 22 more | 53 min |
| Mar 30, 8:39 PM CDT | Mesoscale Discussion | SPC | Bolivar, Issaquena, Sharkey, Washington | 96 min |
| Mar 30, 10:00 PM CDT | Tornado Watch | SPC | Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 18 more | 6 hr |
| Mar 30, 11:30 PM CDT | Mesoscale Discussion | SPC | Adams, Bolivar, Claiborne, Humphreys, Issaquena, Jefferson and 4 more | 60 min |
| Mar 31, 3:04 AM CDT | Mesoscale Discussion | SPC | Amite, Clarke, Copiah, Covington, Forrest, Franklin and 19 more | 86 min |
| Mar 31, 3:20 AM CDT | Tornado Watch | SPC | Amite, Covington, Forrest, Jasper, Jefferson Davis, Jones and 10 more | 6 hr |
| Mar 31, 10:26 AM CDT | Mesoscale Discussion | SPC | Coahoma, DeSoto, Tate, Tunica | 3 hr |
| Mar 31, 1:30 PM CDT | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Calhoun, Carroll, Chickasaw and 30 more | 2 hr |
| Mar 31, 2:35 PM CDT | Tornado Watch | SPC | Adams, Alcorn, Attala, Benton, Bolivar, Calhoun and 60 more | 7 hr |
| Mar 31, 3:30 PM CDT | Mesoscale Discussion | SPC | Amite, Covington, Forrest, Franklin, George, Greene and 13 more | 2 hr |
Nearby
Tornado Watches in Alabama, 2016Tornado Watches in Mississippi, 2016Tornado Watches in Florida, 2016Every tornado watch in 2016
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.