Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 147, NWS Mobile, AL

July 11, 2000Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jul 11, 2000, 5:30 PM CDT for Santa Rosa County, Florida. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 11, 2000, 5:30 PM CDT (22:30 UTC)
Expired: Jul 11, 2000, 6:15 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Santa Rosa County, FL

What was reported inside it

Time	Report	Where	Remark
Jul 11, 5:50 PM CDT	Thunderstorm Wind 55 E	Pace, FL	Thunderstorm winds downed trees and power lines near the community. Also, lightning started a fire in nearby woods.

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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 10.5 hours before the alert went out and 55 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: 2813 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 6 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.

301 
WUUS54 KMOB 112230
SVRMOB
FLC113-112315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
530 PM CDT TUE JUL 11 2000

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SANTA ROSA COUNTY IN FLORIDA

* UNTIL 615 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM 18 MILES NORTH OF MILTON...OR ABOUT 16 MILES   
SOUTH OF EAST BREWTON...NEARLY STATIONARY.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR 
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR 
HOME OR BUSINESS. 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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 5:00 PM CDT	Severe Thunderstorm Warning	MOB	Santa Rosa	30 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.