Alert archive / Georgia / Tornado Watches in 2014

Tornado Watch 31

March 16, 20147 counties in Alabama; 13 counties in Florida; 23 counties in Georgia

The Storm Prediction Center issued this tornado watch at Mar 16, 2014, 8:59 AM CDT for 7 counties in Alabama; 13 counties in Florida; 23 counties in Georgia. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Mar 16, 2014, 8:59 AM CDT (13:59 UTC)
Expired
Mar 16, 2014, 5:00 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 43 counties

Barbour County, AL, Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Pike County, AL, Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Worth County, GA

The radar

The Ft Rucker radar (KEOX), 79 km from the middle of the area, began a volume at 14:02 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 16, 9:08 AM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva67 min
Mar 16, 9:51 AM CDTTornado WarningTAECoffee, Dale24 min
Mar 16, 9:54 AM CDTSevere Thunderstorm WarningTAEHolmes, Walton51 min
Mar 16, 10:02 AM CDTSevere Thunderstorm WarningTAEDale, Geneva, Henry, Houston58 min
Mar 16, 10:42 AM CDTSevere Thunderstorm WarningTAEHolmes, Jackson, Walton, Washington48 min
Mar 16, 10:45 AM CDTSevere Thunderstorm WarningTAEGeneva, Henry, Houston60 min
Mar 16, 11:17 AM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Decatur, Dougherty, Early, Grady and 3 more58 min
Mar 16, 1:14 PM CDTSevere Thunderstorm WarningTAEBerrien, Brooks, Cook, Lanier, Lowndes61 min
Mar 16, 1:57 PM CDTFlash Flood WarningTAEBay, Calhoun, Gadsden, Jackson, Liberty119 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.0 hours before the alert went out and 83 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.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2014-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2014-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 423 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
423 m²/s²
0-3 km storm-relative helicity
431 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

691 
WWUS20 KWNS 161404
SEL1  
SPC WW 161404
ALZ000-FLZ000-GAZ000-CWZ000-162200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 31
NWS STORM PREDICTION CENTER NORMAN OK
900 AM CDT SUN MAR 16 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHEAST ALABAMA
  THE FLORIDA PANHANDLE
  SOUTHWEST GEORGIA
  COASTAL WATERS

* EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 900 AM UNTIL
  500 PM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES EAST NORTHEAST OF
TALLAHASSEE FLORIDA TO 10 MILES NORTH OF CRESTVIEW FLORIDA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 30...

DISCUSSION...NE-SW SQLN NOW OVER SRN AL EXPECTED TO CONTINUE EWD IN
TANDEM WITH 40-50 KT SW LLJ. LARGE-SCALE FORCING FOR ASCENT ACROSS
WW AREA WILL BE WEAK TO NEUTRAL AS MAIN UPR IMPULSE CONTINUES NE
INTO THE LWR TN AND OH RVR VLYS. BUT WEAK DISTURBANCES IN SRN STREAM
FLOW...COUPLED WITH MODEST SFC HEATING AND FAIRLY SUBSTANTIAL
LOW-LVL MOISTURE RETURN...SUGGEST A CONTINUED RISK FOR EMBEDDED
LEWPS/TRANSIENT SUPERCELLS IN THE SQLN EWD TOWARD DHN/TLH...WITH AN
ATTENDANT CONDITIONAL RISK FOR TORNADOES/LOCALLY DMGG WIND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24040.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 4:20 AM CDTMesoscale DiscussionSPCMobile, Washington115 min
Mar 16, 4:51 AM CDTTornado WatchSPCBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more7 hr
Mar 16, 6:31 AM CDTMesoscale DiscussionSPCBaldwin, Clarke, Escambia, Mobile, Monroe, Washington and 1 more89 min
Mar 16, 7:51 AM CDTMesoscale DiscussionSPCCoffee, Geneva, Houston84 min
Mar 16, 10:27 AM CDTMesoscale DiscussionSPCHouston93 min
Mar 16, 1:02 PM CDTMesoscale DiscussionSPCHamilton118 min
Mar 16, 2:55 PM CDTMesoscale DiscussionSPCLafayette, Taylor, Wakulla95 min

Nearby

Tornado Watches in Georgia, 2014Tornado Watches in Florida, 2014Tornado Watches in Alabama, 2014Every tornado watch in 2014

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.