Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 159, NWS Mobile, AL

July 13, 2000Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jul 13, 2000, 8:18 PM CDT for Okaloosa County, Florida. It was in force for 27 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jul 13, 2000, 8:18 PM CDT (01:18 UTC)
Expired: Jul 13, 2000, 8:45 PM CDT
In force: 27 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Okaloosa County, FL

What was reported inside it

Time	Report	Where	Remark
Jul 13, 8:40 PM CDT	Thunderstorm Wind 55 E	Florosa, FL	High winds blew power poles and lines down near Florosa.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.3 hours before the alert went out and 224 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 995 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1009 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -82 m²/s²
0-3 km storm-relative helicity: -55 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 
WUUS54 KMOB 140118
SVRMOB
FLC091-140145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
818 PM CDT THU JUL 13 2000

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN OKALOOSA COUNTY IN FLORIDA
  THIS INCLUDES THE CITIES OF...FORT WALTON BEACH...WRIGHT

* UNTIL 845 PM CDT

* AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES NORTH OF WRIGHT...MOVING SOUTH AT 5
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  4 MILES NORTH OF WRIGHT...5 MILES NORTHWEST OF OCEAN CITY...6 MILES
  NORTH OF FORT WALTON BEACH...7 MILES NORTH OF MARY ESTHER AT 845 PM
  CDT

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  
HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE 
WATER COVERS THE ROAD.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN MOBILE.

LAT...LON 3064 8654 3073 8676 3040 8679 3039 8653

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:38 PM CDT	Severe Thunderstorm Warning	MOB	Santa Rosa	37 min
Jul 13, 8:49 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	26 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.