Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 155, NWS Jacksonville, FL

July 7, 2000Gilchrist County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 7, 2000, 7:38 PM EDT for Gilchrist County, Florida. It was in force for 52 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: Jul 7, 2000, 7:38 PM EDT (23:38 UTC)
Expired: Jul 7, 2000, 8:30 PM EDT
In force: 52 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Gilchrist County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.6 hours before the alert went out and 136 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: 957 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 11 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 
WUUS52 KJAX 072339
SVRJAX
FLC041-080030-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
738 PM EDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GILCHRIST COUNTY IN NORTHERN FLORIDA

* UNTIL 830 PM EDT

* AT 738 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS ALONG A
  LINE EXTENDING FROM 13 MILES SOUTHEAST OF MAYO TO 6 MILES SOUTHWEST
  OF GAINESVILLE...MOVING SOUTH AT 15 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORMS THROUGH 830 PM EDT...
  BELL...
  TRENTON...

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY BUILDING
AWAY FROM WINDOWS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE
DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY
LIGHTNING...AND VERY HEAVY RAIN.



$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 7, 3:10 PM EDT, 4 hours 28 minutes earlier.

Area forecast discussion, Jul 7, 3:10 PM EDT, 4 hours 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
310 PM EDT FRI JUL 7 2000

CURRENTLY...JUST A QUICK AFD TO ALERT OUR BACKUP OFFICES THAT HP
WILL BE WORKING ON OUR AWIPS TODAY. HOPEFULLY THE OPERATION WILL NOT
TAKE TO LONG...HOWEVER WILL CALL EACH OFFICE AND KEEP THEM UPDATED
ON THE SITUATION. WILL UPDATE AND SEND OUT ALL LONG FUSED PRODUCTS
THAT NEED TO BE SENT OUT BEFORE TURNING THE SYSTEM OVER TO HP.

PRELIM
AMG v69/91/68/90 0200
SSI 75/88/72/87 2200
JAX 74/90/72/91 2210
GNV 70/94/69/92 3122 33

.JAX...
.GA...NONE
.FL...NONE

SCOTT

In the hours before

Local storm report, Jul 7, 5:15 PM EDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
ISSUED BY NATIONAL WEATHER SERVICE MELBOURNE FL
515 PM EDT FRI JUL 7 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0415 PM    PALM COAST                FL   WIND DAMAGE
07/07/00   FLAGLER                        LARGE TREE AND SEVERAL
                                          SMALL TREES BLOWN DOWN.

0420 PM    FLAGLER BEACH             FL   .88 INCH HAIL
07/07/00   FLAGLER

0430 PM    DUPONT                    FL   WIND DAMAGE
07/07/00   FLAGLER                        TWO LARGE TREES AND SEVERAL
                    A                      SMALL TREES BLOWN DOWN.

TROUTMAN

Local storm report, Jul 7, 6:14 PM EDT, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
ISSUED BY NATIONAL WEATHER SERVICE CHARLESTON SC
614 PM EDT FRI JUL 7 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0300 PM    ST. MARY'S                FL   WIND DAMAGE
07/07/00   CAMDEN                         SEVERAL LARGE TREES
                                          DOWN ON NEW POINT PETER
        Y                                  RD PER EMA

EVT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 4:14 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	46 min
Jul 7, 5:27 PM EDT	Severe Thunderstorm Warning	JAX	Marion	48 min
Jul 7, 6:21 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion, Putnam	39 min
Jul 7, 6:43 PM EDT	Tornado Warning	JAX	Alachua, Putnam	32 min
Jul 7, 7:00 PM EDT	Severe Thunderstorm Warning	JAX	Alachua	45 min
Jul 7, 7:16 PM EDT	Severe Thunderstorm Warning	JAX	Marion	44 min
Jul 7, 7:33 PM EDT	Tornado Warning	JAX	Alachua	12 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; the sounding from the Mesonet's radiosonde archive.