Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 150, NWS Jacksonville, FL

July 7, 2000Marion County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 7, 2000, 5:27 PM EDT for Marion 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: Jul 7, 2000, 5:27 PM EDT (21:27 UTC)
Expired: Jul 7, 2000, 6:15 PM EDT
In force: 48 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Marion County, FL

The radar

The Jacksonville radar (KJAX), 146 km from the middle of the area, began a volume at 21:29 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

Jacksonville, FL (KJAX), launched 12:00Z, 9.5 hours before the alert went out and 148 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 072129
SVRJAX
FLC083-072215-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
ISSUED BY TAMPA BAY-RUSKIN FL
527 PM EDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARION COUNTY IN FLORIDA

* UNTIL 615 PM EDT

* AT 527 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 10 MILES EAST OF 
REDDICK...MOVING SOUTH AT 10 MPH.

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 60 MPH...DEADLY
LIGHTNING...AND VERY HEAVY RAIN.



RD
NNNN

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, 2 hours 17 minutes earlier.

Area forecast discussion, Jul 7, 3:10 PM EDT, 2 hours 17 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

Special weather statement, Jul 7, 11:40 AM EDT, 5 hours 47 minutes before

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-072000-

NORTHEAST FLORIDA/SOUTHEAST GEORGIA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
ISSUED BY NATIONAL WEATHER SERVICE TALLAHASSEE FL
1140 AM EDT FRI JUL 7 2000

...SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON...
...HOT TEMPERATURES AGAIN THIS AFTERNOON...

A WEAK SURFACE BACK DOOR FRONT WILL BE MOVING SOUTH ACROSS NORTHEAST
FLORIDA AND SOUTHEAST GEORGIA THIS AFTERNOON AND EVENING. CONVERGENCE
ALONG THE FRONT...A MOIST AND INCREASINGLY UNSTABLE AIRMASS...AND HOT
AFTERNOON TEMPERATURES WILL TRIGGER SCATTERED AFTERNOON AND EARLY
EVENING THUNDERSTORMS. A FEW OF THE THUNDERSTORMS MAY BECOME SEVERE
AND PRODUCE VERY HEAVY RAINFALL...DEADLY LIGHTNING...LARGE HAIL...AND
DAMAGING WIND GUSTS. SKYWARN SPOTTERS SHOULD REMAIN ALERT FOR
POSSIBLE ACTIVATION THIS AFTERNOON THROUGH EARLY EVENING.

ALSO...AFTERNOON HIGH TEMPERATURES WILL REACH THE UPPER 90S ACROSS
MUCH OF NORTH FLORIDA...WITH 90 TO 95 DEGREES EXPECTED NEAR THE
COAST. THESE HIGH TEMPERATURES IN COMBINATION WITH HIGH HUMIDITY CAN
BE DANGEROUS FOR PEOPLE WORKING OR PLAYING OUTDOORS. IF ENGAGED IN
OUTDOOR ACTIVITIES...TAKE FREQUENT BREAKS FROM THE HEAT. DRINK PLENTY
OF WATER AND TAKE ADVANTAGE OF AIR CONDITIONED FACILITIES AS OFTEN
AS POSSIBLE.

FOR ADDITIONAL INFORMATION...VISIT THE JACKSONVILLE NATIONAL WEATHER
SERVICE WEB SITE ON THE INTERNET AT WWW.NWSJAX.NOAA.GOV.

Local storm report, Jul 7, 5:15 PM EDT, 12 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

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, 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
Jul 7, 7:38 PM EDT	Severe Thunderstorm Warning	JAX	Gilchrist	52 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; radar from the NEXRAD Level II archive.