Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 32, NWS Jacksonville, FL

March 9, 2003Flagler County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Mar 9, 2003, 12:14 PM EST for Flagler County, Florida. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 9, 2003, 12:14 PM EST (17:14 UTC)
Expired
Mar 9, 2003, 1:00 PM EST
In force
46 min
Issued by
NWS Jacksonville, FL
Area
Counties, with a storm outline in the text

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 113 km from the middle of the area, began a volume at 17:13 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.2 hours before the alert went out and 115 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2003-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2003-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
24 J/kg
Mixed-layer CIN
-168 J/kg
Mixed-layer LCL
1042 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-49 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.

016 
WUUS52 KJAX 091714
SVRJAX
FLC035-091800-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1214 PM EST SUN MAR 9 2003

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FLAGLER COUNTY IN NORTHEAST FLORIDA

* UNTIL 100 PM EST

* AT 1214 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 13 MILES
  NORTHWEST OF ESPANOLA...OR ABOUT 7 MILES NORTH OF ANDALUSIA...
  MOVING SOUTHEAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 100 PM EST...
  ESPANOLA...
  BUNNELL...
  ANDALUSIA...

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

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR ROOM IN
THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS.

LAT...LON 2961 8150 2949 8148 2929 8118 2953 8118
$$

CAMP

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 Mar 9, 12:03 PM EST, 11 minutes earlier.

Area forecast discussion, Mar 9, 12:03 PM EST, 11 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
NOON EST SUN MAR 9 2003

UPDATED ZONES TO REMOVE SOUTHEAST GEORGIA FROM THE FLOOD WATCH.

SPC HAS ALL OF THE FLORIDA AND THE EXTREME SOUTHEAST GA COUNTY
WARNING AREA UNDER A SLIGHT RISK OF SEVERE WEATHER THIS AFTERNOON.

.JAX...
FL...FLOOD WATCH ZONES FLZ020>023-024-025-030-031-032-033-035-036.
GA...NONE.

FORECAST TEAM: PP/JH/PC/RK
Hazardous weather outlook, Mar 9, 11:44 AM EST, 30 minutes before
FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-092300-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1144 AM EST SUN MAR 9 2003

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...
...FLOOD WATCH CONTINUES FOR PORTIONS OF NORTHEAST FLORIDA THROUGH 5
PM...
...A SLIGHT RISK OF SEVERE THUNDERSTORMS WILL CONTINUE INTO THE
EVENING HOURS FOR NORTHEAST FLORIDA AND PORTIONS OF SOUTHEAST
GEORGIA...

A LOW PRESSURE SYSTEM WILL TRACK ALONG THE STATIONARY FRONT THAT IS
PARKED ON THE FLORIDA/GEORGIA BORDER. A LINE OF WIDESPREAD HEAVY
RAIN AND THUNDERSTORMS ACROSS NORTHEAST FLORIDA WILL CONTINUE TO
TRACK TO THE SOUTHEAST AND WILL PRODUCE LOCALIZED FLOODING AND
ISOLATED STRONG TO SEVERE THUNDERSTORMS WITH STRONG GUSTY WINDS AND
SMALL HAIL.

ANOTHER MID LEVEL IMPULSE WILL WORK ACROSS THE FLORIDA PANHANDLE AND
INTO THE FORECAST AREA LATER THIS AFTERNOON. SCATTERED STRONG TO
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE...WITH THE RISK OF LARGE
HAIL AND DAMAGING WINDS. THIS RISK OF SEVERE WEATHER IS GENERALLY
ALONG AND SOUTH OF THE FLORIDA/GEORGIA BORDER AND MAINLY IN
NORTHEAST FLORIDA. WHILE THESE STORMS WILL CONTAIN HEAVY
RAINFALL...IT WILL NOT BE AS WIDESPREAD AS THIS MORNING.

NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

RIVER FLOODING WILL CONTINUE INTO MID-WEEK.

NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS REQUESTED TO REPORT ANY SEVERE WEATHER OR
FLOODING RELATED PROBLEMS.

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

HESS

In the hours before

Special weather statement, Mar 9, 10:13 AM EST, 2 hours 1 minute before
FLZ025-031-032-091545-

SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1013 AM EST SUN MAR 9 2003

...STRONG THUNDERSTORMS WILL IMPACT BRADFORD...CLAY...AND SOUTHERN
DUVAL COUNTIES THROUGH 1045 AM EST...

AT 1013 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS CENTERED 4 MILES SOUTH OF MAXVILLE...
OR ABOUT 14 MILES NORTHEAST OF RAIFORD...MOVING SOUTHEAST AT 25 MPH.
THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
MAXVILLE...MIDDLEBURG...ASBURY LAKE...PENNEY FARMS...DOCTORS INLET...
BELLAIR-MEADOWBROOK TERRA AND GREEN COVE SPRINGS THROUGH 1045 AM EST.
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 AND TORRENTIAL RAINFALL.

CAMP
Special weather statement, Mar 9, 10:45 AM EST, 1 hour 29 minutes before
FLZ025-033-091615-

SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1045 AM EST SUN MAR 9 2003

...STRONG THUNDERSTORMS WILL IMPACT ST. JOHNS AND SOUTHERN DUVAL
COUNTY THROUGH 1115 AM EST...

AT 1045 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS CENTERED 6 MILES WEST OF FRUIT
COVE...OR ABOUT 5 MILES SOUTH OF ORANGE PARK...MOVING EAST AT 30 MPH.
THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
MANDARIN...FRUIT COVE...BAYARD...DURBIN...SOUTH PONTE VEDRA BEACH AND
GUANA RIVER STATE PARK THROUGH 1115 AM EST. 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 AND
TORRENTIAL RAINFALL.

CAMP

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 9:22 AM ESTFlash Flood WarningJAXColumbia, Suwannee3 hr
Mar 9, 9:57 AM ESTFlash Flood WarningJAXBaker, Union3 hr
Mar 9, 12:04 PM ESTSevere Thunderstorm WarningJAXPutnam41 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003Every 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; radar from the NEXRAD Level II archive.