Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 2, NWS Tallahassee, FL

January 8, 1997Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 8, 1997, 6:12 AM CST for Walton County, Florida. It was in force for 48 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 8, 1997, 6:12 AM CST (12:12 UTC)
Expired
Jan 8, 1997, 7:00 AM CST
In force
48 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 12:14 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.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 0.2 hours before the alert went out and 35 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, Eglin AFB/Valpar, FL at 12:00Z on 1997-01-08Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 1997-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 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
434 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTLH 081214 RRA
SVRTLH
FLC131-FLZ506-081300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE TSTM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
712 AM EST (612 AM CST) WED JAN 8 1997
 
THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A
SEVERE TSTM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL  800 AM EST (700 
 FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST FLORIDA
 
   ...WALTON COUNTY
 
  AND FOR MARINE INTERESTS ON THE GULF COASTAL WATERS FROM THE
 
   ...DESTIN  TO  PANAMA CITY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
JUST OFFSHORE OF WALTON COUNTY. THIS STORM IS MOVING NORTHEAST AT ABOUT
25 MPH. THE STORM WILL MOVE INTO THE SOUTHERN PORTIONS OF WALTON COUNTY
BEFORE 630 AM CST.
 
SEVERE THUNDERSTORMS PRODUCE WINDS OF 58 MPH OR HIGHER... LARGE
HAIL... DANGEROUS LIGHTNING AND VERY HEAVY RAIN.  IF YOU ARE IN THE
PATH OF THIS STORM... GO TO A SAFE PLACE IMMEDIATELY.
 
SEVERE THUNDERSTORMS PRODUCE WINDS OF 50 KNOTS OR GREATER...
VERY ROUGH SEAS AND LIGHTNING.  YOUR BEST COURSE OF ACTION
IS TO SEEK SAFE HARBOR...BUT IF YOU ARE CAUGHT ON THE OPEN WATER...
STAY BELOW DECK AND AWAY FROM UNGROUNDED METAL OBJECTS. MAKE SURE
YOU AND ALL YOUR CREW ARE WEARING FLOTATION DEVICES.

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 8, 7:00 AM CSTSevere Thunderstorm WarningTAEHolmes30 min
Jan 8, 7:26 AM CSTSevere Thunderstorm WarningTAEJackson19 min
Jan 8, 7:35 AM CSTSevere Thunderstorm WarningTAEHolmes10 min
Jan 8, 8:05 AM CSTSevere Thunderstorm WarningTAECalhoun40 min
Jan 8, 8:30 AM CSTSevere Thunderstorm WarningTAEGadsden, Liberty45 min

Nearby

Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997

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.