Alert archive / Florida / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 321, NWS Jacksonville, FL

July 23, 2008Baker County, Nassau County, Florida; Charlton County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 23, 2008, 11:30 AM EDT for Baker County, Nassau County, Florida; Charlton County, Georgia. It was in force for 60 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 23, 2008, 11:30 AM EDT (15:30 UTC)
Expired: Jul 23, 2008, 12:30 PM EDT
In force: 60 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Baker County, FL, Nassau County, FL, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 36 km from the middle of the area, began a volume at 15:33 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.

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 23, 9:55 AM EDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jul 23, 9:55 AM EDT, 1 hour 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
955 AM EDT WED JUL 23 2008

.SHORT TERM...12Z KJAX SOUNDING HAS PLENTY OF INSTABILITY ACROSS THE
AREA THIS MORNING WITH LI OF AROUND -10 AND 500 MB TEMP OF -10C.
PWAT IS UP TO AROUND 2 INCHES. AS A RESULT...CONVECTION IS ONGOING
OVER INLAND SE GA AND THE N SUWANNEE VALLEY WITH MORE ACTIVITY OVER
THE GULF AND ATLC COASTAL WATERS. LIMITING FACTOR WILL BE ABUNDANT
CLOUD COVER ACROSS THE AREA...BUT SHOULD BE ENUF BREAKS TO REACH THE
MID 80S WHICH WILL BE ALL IT WILL TAKE TO START MORE WIDESPREAD
CONVECTION. GFS APPEARS TO HAVE SOME CONVECTIVE FEEDBACK ISSUES...
BUT NAM DEPICTS VORT MAX AT 500MB OVER THE AREA BY AFTN. MAY BUMP
POPS UP A BIT MORE SINCE MODELS HAVE BEEN UNDERDOING CONVECTION THE
PAST FEW DAYS. WILL ALSO TWEAK TEMPS DOWN A DEG OR TWO AND REFRESH
WORDING WITH PREVAILING MOSTLY CLOUDY SKIES.

&&

.AVIATION...TAFS ARE ON TRACK WITH AFTN SHOWERS AND STORMS EXPECTED.
MAY NEED TO TWEAK VSBYS DOWN IN TSTMS DUE TO HIGH PWATS ACROSS THE
AREA. MAY ALSO BUMP UP TSTM WIND GUSTS.

&&

.MARINE...WILL BUMP UP WINDS ABOUT 5 KTS FOR THE UPDATE TO ACCOUNT
FOR HIGHER SUSTAINED WINDS IN OBS ALTHO THESE WINDS MAY BE DUE TO
NEARBY CONVECTION. HOWEVER...THESE TWEAKS WILL STILL BE BELOW
HEADLINE CRITERIA. OTHERWISE...LITTLE CHANGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  91  71  93  72 /  70  30  30  20
SSI  88  75  89  76 /  70  40  30  20
JAX  90  71  91  73 /  70  40  40  30
SGJ  87  71  88  74 /  70  40  40  30
GNV  89  71  90  73 /  70  40  50  30
OCF  89  71  90  72 /  70  40  50  30

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...NONE.

&&

CARROLL/DEESE/KERNS

Hazardous weather outlook, Jul 23, 4:48 AM EDT, 6 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
448 AM EDT WED JUL 23 2008

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-240832-
ALACHUA-APPLING-ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY-
CAMDEN (COASTAL)-CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE-
COLUMBIA-DUVAL-ECHOLS-FLAGLER-GILCHRIST-GLYNN (COASTAL)-
GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-PIERCE-PUTNAM-
ST JOHNS-SUWANNEE-UNION-WARE-WAYNE-
448 AM EDT WED JUL 23 2008

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

.DAY ONE...TODAY AND TONIGHT...

...ISOLATED STRONG TO POSSIBLY SEVERE STORMS TODAY...

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY. SHOWERS AND
STORMS WILL BE MOVE EAST TO SOUTHEAST AROUND 10 TO 15 MPH. ISOLATED
STRONG AND SEVERE STORMS WILL BE CAPABLE OF PRODUCING DAMAGING
WINDS...HAIL UP TO PENNY SIZE...AND EXCESSIVE LIGHTNING. HEAVY
RAINFALL IS EXPECTED IN THE STRONGER STORMS WITH RAINFALL RATES OF
AROUND 2 INCHES PER HOUR.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THE PERIOD WITH STRONG
THUNDERSTORMS POSSIBLE IN THE AFTERNOON AND EVENING HOURS WITH
STRONG GUSTY WINDS...LOCALLY HEAVY RAINFALL AND EXCESSIVE CLOUD TO
GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED FOR
THEIR AREA.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

ARS

In the hours before

Special weather statement, Jul 23, 11:11 AM EDT, 19 minutes before

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Special weather statement, Jul 23, 11:22 AM EDT, 8 minutes before

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Special weather statement, Jul 23, 11:24 AM EDT, 6 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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Local storm report, Jul 23, 11:26 AM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1126 AM EDT WED JUL 23 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

&&

CARROLL

Local storm report, Jul 23, 11:27 AM EDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1127 AM EDT WED JUL 23 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     TSTM WND DMG     4 N LIVE OAK            30.35N 82.98W
07/22/2008                   SUWANNEE           FL   DEPT OF HIGHWAYS

            THE LIVE OAK ROAD DEPARTMENT REPORTED TREES DOWN THAT
            THEY REMOVED FROM THE ROAD ALONG COUNTY ROAD 795 AND ALSO
            54TH STREET 5 MILES NORTH OF LIVE OAK.

&&

CARROLL

Special weather statement, Jul 23, 11:27 AM EDT, 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1127 AM EDT WED JUL 23 2008

GAZ165-166-231630-
COASTAL CAMDEN-INLAND CAMDEN-
1127 AM EDT WED JUL 23 2008

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR CAMDEN COUNTY FOR
STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 1230 PM
EDT...

AT 1127 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES WEST OF COLESBURG...OR 5 MILES
SOUTHWEST OF WOODBINE...MOVING EAST AT 20 MPH. THIS STRONG
THUNDERSTORM WILL ALSO AFFECT AREAS AROUND TARBORO...WOODBINE...
COLESBURG...KINGSLAND...HARRIETTS BLUFF...KINGS BAY BASE AND DOVER
BLUFF THROUGH 1230 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...
EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH
CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

DEESE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 8:08 AM EDT	Special Marine Warning	JAX		52 min
Jul 23, 11:51 AM EDT	Special Marine Warning	JAX		84 min
Jul 23, 11:55 AM EDT	Severe Thunderstorm Warning	JAX	Duval, Nassau	50 min
Jul 23, 12:23 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval, Saint Johns	67 min
Jul 23, 12:34 PM EDT	Special Marine Warning	JAX		116 min
Jul 23, 12:57 PM EDT	Special Marine Warning	JAX		93 min
Jul 23, 1:19 PM EDT	Special Marine Warning	JAX		116 min
Jul 23, 2:29 PM EDT	Areal Flood Advisory	JAX	Columbia, Hamilton, Suwannee	2 hr
Jul 23, 3:11 PM EDT	Special Marine Warning	JAX		71 min
Jul 23, 3:33 PM EDT	Areal Flood Advisory	JAX	Marion	87 min
Jul 22, 8:17 PM EDT	Areal Flood Advisory	JAX	Appling, Jeff Davis	58 min
Jul 23, 10:39 AM EDT	Severe Thunderstorm Warning	JAX	Charlton, Ware	51 min

Nearby

Severe Thunderstorm Warnings in Florida, 2008 Severe Thunderstorm Warnings in Georgia, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.