Alert archive / Florida / Tornado Warnings in 1999

Tornado Warning 20, NWS Mobile, AL

March 9, 1999Okaloosa County, Florida

NWS Mobile, AL issued this tornado warning at Mar 9, 1999, 5:29 AM CST for Okaloosa County, Florida. It was in force for 61 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 9, 1999, 5:29 AM CST (11:29 UTC)
Expired
Mar 9, 1999, 6:30 AM CST
In force
61 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 9, 1:00 AM CSTTornado WatchSPC5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.5 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 1999-03-09Temperature 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 00:00Z on 1999-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.19395878Sfc1 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
1790 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
375 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 091129 RRA
TORMOB
FLC091-091230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
529 AM CST TUE MAR 9 1999

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 630 AM CST

* AT 527 AM CST... AS INDICATED BY DOPPLER RADAR A TORNADO WAS LOCATED
  9 MILES WEST OF VALPARAISO OR 5 MILES NORTHWEST OF OCEAN CITY...
  MOVING SOUTHEAST AT 35 MPH.

* TORNADO WILL PASS NEAR-
  LONGWOOD BY 535 AM CST
  SHALIMAR BY 535 AM CST
  VALPARAISO BY 540 AM CST
  DESTIN BY 545 AM CST
  SEMINOLE BY 550 AM 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 9, 2:39 AM CSTSevere Thunderstorm WarningMOBEscambia51 min
Mar 9, 3:04 AM CSTSevere Thunderstorm WarningMOBSanta Rosa41 min
Mar 9, 3:27 AM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa78 min
Mar 9, 4:44 AM CSTSevere Thunderstorm WarningMOBEscambia76 min
Mar 9, 4:59 AM CSTTornado WarningMOBEscambia61 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.