Alert archive / Florida / Tornado Warnings in 1999

Tornado Warning 30, NWS Mobile, AL

March 13, 1999Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Mar 13, 1999, 11:08 PM CST for Okaloosa County, Florida. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 13, 1999, 11:08 PM CST (05:08 UTC)
Expired
Mar 14, 1999, 12:00 AM CST
In force
52 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Okaloosa County, FL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 13, 8:15 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 5.1 hours before the alert went out and 221 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 00:00Z on 1999-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1999-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 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
10 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
253 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.

000 
TTAA00 KMOB 140508 RRA
TORMOB
FLC091-140600-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1108 PM CST SAT MAR 13 1999

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN OKALOOSA COUNTY IN NORTHWESTERN FLORIDA

* UNTIL MIDNIGHT CST

* AT 1104 PM CST... AS INDICATED BY SPOTTERS A TORNADO WAS
  LOCATED 8 MILES WEST OF FORT WALTON BEACH OR 5 MILES WEST OF MARY
  ESTHER... MOVING EAST AT 40 MPH.

* TORNADO WILL PASS NEAR-
  FORT WALTON BEACH BY 1115 PM CST
  CINCO BAYOU BY 1115 PM CST
  SHALIMAR BY 1120 PM CST
  VALPARAISO BY 1125 PM CST
  SEMINOLE BY 1135 PM CST

IF YOU ARE IN THE PATH OF A TORNADO...SEEK SAFETY IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...OR
CUSHIONS TO COVER YOUR BODY. STAY AWAY FROM WINDOWS.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 13, 9:04 PM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa56 min
Mar 13, 9:11 PM CSTTornado WarningMOBEscambia49 min
Mar 13, 10:03 PM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa57 min
Mar 13, 10:12 PM CSTSevere Thunderstorm WarningMOBOkaloosa48 min
Mar 13, 10:21 PM CSTTornado WarningMOBEscambia, Santa Rosa54 min
Mar 13, 10:54 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa66 min

Nearby

Tornado Warnings in Florida, 1999Every tornado warning in 1999Tornadoes in 1999

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.