Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 214, NWS Jacksonville, FL

July 23, 2003Duval County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 23, 2003, 3:45 PM EDT for Duval County, Florida. It was in force for 45 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, 2003, 3:45 PM EDT (19:45 UTC)
Expired: Jul 23, 2003, 4:30 PM EDT
In force: 45 min
Issued by: NWS Jacksonville, FL
Area: Counties, with a storm outline in the text

County Duval County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.8 hours before the alert went out and 19 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: 1138 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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, 2:55 PM EDT, 50 minutes earlier.

Area forecast discussion, Jul 23, 2:55 PM EDT, 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
255 PM EDT WED JUL 23 2003

ACTIVE WEATHER PATTERN CONTINUING TODAY WITH DEEP EAST COAST TROUGH
STIRRING UP TROUBLE ACROSS THE CWA THIS AFTERNOON. LOOKING AT RADAR
AND SATELLITE...EXPECT ACTIVITY TO CONTINUE WELL INTO THE EVENING
HOURS BEFORE TAPERING OFF LATE.

UPPER TROUGH BEGINS TO WEAKEN THURSDAY AS BERMUDA RIDGE BEGINS TO
BUILD WEST. HOWEVER...SOUTHWEST FLOW SHOULD PERSIST THROUGH MOST OF
THE DAY WITH WEAK SHORTWAVE ENERGY IN THE VICINITY. THUS EXPECT ONE
MORE DAY OF NUMEROUS SHOWERS AND THUNDERSTORMS AREA-WIDE. LOW/MID
LEVEL FLOW WEAKENS SOME THURSDAY SO EXPECT SLOWER MOVEMENT AND LOWER
RISK OF SEVERE WX.

FLOW TURNS SOUTHERLY FOR FRIDAY AS RIDGE ESTABLISHES ITSELF. EXPECT
A MORE TYPICAL SEABREEZE SETUP BUT POPS STILL ON THE HIGH SIDE AS
MOISTURE REMAINS ABUNDANT. BY SATURDAY...RIDGE AXIS SHIFTS NORTH OF
THE AREA WITH EASTERLY FLOW BECOMING ESTABLISHED. THIS FLOW COMBINED
WITH SLIGHTLY DRIER AIR WILL DIMINISH RAIN CHANCES DOWN TO NEAR
CLIMO FOR A CHANGE. PROXIMITY OF RIDGE AXIS TO ALLOW TEMPS REACH LOW
90S MOST AREAS THROUGH EARLY NEXT WEEK.

MARINE...BUOYS SHOWING AROUND 15 KNOTS CURRENTLY.  EXPECT THIS TO
CONTINUE INTO THE EVENING BEFORE SUBSIDING OVERNIGHT TO 10 TO 15
KNOTS. ONE MORE DAY OF SOUTHWEST FLOW BEFORE RIDGE BUILDS TO NORTH
WITH EASTERLY FLOW FOR WEEKEND.

FIRE WX...NO CONCERNS.

.PRELIMINARY POINT TEMPS/POPS...

AMG 72 85 71 90 / 50 60 30 30
SSI 75 83 75 84 / 50 60 30 40
JAX 72 87 73 88 / 50 60 30 50
SGJ 75 85 75 85 / 40 50 30 40
GNV 72 87 72 89 / 40 50 30 50
OCF 72 88 72 89 / 40 50 30 50

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

CAMP/SHASHY

Hazardous weather outlook, Jul 23, 1:30 PM EDT, 2 hours 15 minutes before

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-2312300-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
130 PM EDT WED JUL 23 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST
GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHEAST
FLORIDA AND SOUTHEAST GEORGIA THIS AFTERNOON...

THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE AREA THIS AFTERNOON
AND EARLY EVENING. A FEW STORMS MAY BECOME SEVERE.  THESE STORMS
WILL PRODUCE STRONG DAMAGING WINDS...HAIL...FREQUENT LIGHTNING...AND
LOCALLY VERY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
A FEW STRONG THUNDERSTORMS MAY DEVELOP ACROSS THE REGION THURSDAY
AFTERNOON.

OTHERWISE...NO OTHER HAZARDOUS WEATHER CONDITIONS ARE EXPECTED AT
THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.  SPOTTERS ARE
REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED FOR YOUR LOCAL
AREA.

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

CAMP

In the hours before

Local storm report, Jul 23, 2:37 PM EDT, 1 hour 8 minutes before

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Special weather statement, Jul 23, 2:39 PM EDT, 1 hour 6 minutes before

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Special weather statement, Jul 23, 2:56 PM EDT, 49 minutes before

GAZ136-153-231930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
256 PM EDT WED JUL 23 2003

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR GLYNN AND
EASTERN WAYNE COUNTIES FOR STRONG THUNDERSTORM WINDS VALID
UNTIL 330 PM...

AT 256 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER THALMANN...MOVING NORTHEAST AT 35
MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS AROUND THALMANN AND
EVERETT THROUGH 330 PM EDT. GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE.

CARROLL

Special weather statement, Jul 23, 3:02 PM EDT, 43 minutes before

GAZ150>152-231945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
302 PM EDT WED JUL 23 2003

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHERN
WARE...PIERCE...AND WESTERN BRANTLEY COUNTIES FOR STRONG
THUNDERSTORM WINDS VALID UNTIL 345 PM...

AT 302 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 4 MILES WEST OF MANOR...MOVING EAST
AT 30 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
MANOR...WARESBORO...NEEDHAM...WAYCROSS...SUNNYSIDE...DEENWOOD AND
BLACKSHEAR THROUGH 345 PM EDT. GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE.

CARROLL

Special weather statement, Jul 23, 3:18 PM EDT, 27 minutes before

FLZ032-037-232000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
318 PM EDT WED JUL 23 2003

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHERN
PUTNAM AND CLAY COUNTIES FOR STRONG THUNDERSTORM WINDS VALID
UNTIL 400 PM...

AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 4 MILES NORTH OF JOHNSON...OR ABOUT 6
MILES WEST OF INTERLACHEN...MOVING NORTHEAST AT 35 MPH. THIS STRONG
THUNDERSTORM WILL AFFECT AREAS AROUND PUTNAM HALL...MANNVILLE...
JOHNSON...INTERLACHEN...HOLLISTER...CARRAWAY...FLORAHOME AND PENNEY
FARMS THROUGH 400 PM EDT. GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE.

CARROLL

Special weather statement, Jul 23, 3:28 PM EDT, 17 minutes before

FLZ025-032-232000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
328 PM EDT WED JUL 23 2003

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CLAY AND DUVAL
COUNTIES FOR STRONG THUNDERSTORM WINDS VALID UNTIL 400 PM...

AT 328 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 7 MILES WEST OF DOCTORS INLET...OR ABOUT
10 MILES WEST OF ORANGE PARK...MOVING NORTHEAST AT 25 MPH. THIS
STRONG THUNDERSTORM WILL AFFECT AREAS AROUND DOCTORS INLET...
JACKSONVILLE HEIGHTS...BELLAIR-MEADOWBROOK TERRACE...ORANGE PARK...
ORTEGA...MANDARIN...RIVERSIDE AND SAN MARCO THROUGH 400 PM EDT.
GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE
MINOR WIND DAMAGE.

CARROLL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 12:23 PM EDT	Special Marine Warning	JAX		97 min
Jul 23, 12:57 PM EDT	Severe Thunderstorm Warning	JAX	Marion, Putnam	33 min
Jul 23, 1:00 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	45 min
Jul 23, 1:12 PM EDT	Special Marine Warning	JAX		48 min
Jul 23, 1:57 PM EDT	Special Marine Warning	JAX		3 hr
Jul 23, 1:57 PM EDT	Special Marine Warning	JAX		3 hr
Jul 23, 2:16 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	29 min
Jul 23, 4:23 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Saint Johns	37 min
Jul 23, 1:50 PM EDT	Severe Thunderstorm Warning	JAX	Coffee, Jeff Davis	40 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003 Every severe thunderstorm warning in 2003

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.