Alert archive / Florida / Tornado Warnings in 1999

Tornado Warning 6, NWS Mobile, AL

January 2, 1999Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Jan 2, 1999, 11:45 AM CST for Santa Rosa County, Florida. It was in force for 30 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
Jan 2, 1999, 11:45 AM CST (17:45 UTC)
Expired
Jan 2, 1999, 12:15 PM CST
In force
30 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Santa Rosa County, FL

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 2, 9:00 AM CSTTornado WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.8 hours before the alert went out and 262 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, Slidell Radar S, LA at 12:00Z on 1999-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 549 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, Slidell Radar S, LA at 12:00Z on 1999-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
549 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
615 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
331 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

999 
WFUS1 KMOB 021746 RRA
TORMOB
FLC113-021815-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1145 AM CST SAT JAN 2 1999

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA

* UNTIL 1215 PM CST

* AT 1143 AM CST... AS INDICATED BY DOPPLER RADAR A TORNADO WAS
  LOCATED 24 MILES NORTHEAST OF MILTON OR 11 MILES EAST OF MUNSON...
  MOVING NORTH AT 15 MPH.  SPOTTERS REPORTED A TORNADO WITH THIS
  STORM.

THE PATH OF THIS TORNADO WILL BE MAINLY OVER RURAL AREAS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SAFETY IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK REFUGE IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 10:32 AM CSTTornado WarningMOBEscambia, Santa Rosa43 min
Jan 2, 11:16 AM CSTTornado WarningMOBSanta Rosa29 min
Jan 2, 11:19 AM CSTTornado WarningMOBOkaloosa26 min
Jan 2, 11:27 AM CSTSevere Thunderstorm WarningMOBEscambia63 min
Jan 2, 11:54 AM CSTTornado WarningMOBOkaloosa36 min
Jan 2, 12:29 PM CSTSevere Thunderstorm WarningMOBSanta Rosa61 min
Jan 2, 12:33 PM CSTSevere Thunderstorm WarningMOBOkaloosa57 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.