Alert archive / Florida / Flash Flood Warnings in 2002

Flash Flood Warning 3, NWS Jacksonville, FL

June 22, 20024 counties in Florida

NWS Jacksonville, FL issued this flash flood warning at Jun 22, 2002, 11:13 AM EDT for 4 counties in Florida. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 22, 2002, 11:13 AM EDT (15:13 UTC)
Expired
Jun 22, 2002, 3:00 PM EDT
In force
4 hr
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Clay County, FL, Duval County, FL, Putnam County, FL, Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 58 km from the middle of the area, began a volume at 15:13 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.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 3.2 hours before the alert went out and 60 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 2002-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 431 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2002-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.1939Sfc1 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
431 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
444 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
52 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 
WGUS52 KJAX 221513
FFWJAX
FLC019-031-107-109-221900-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1105 AM EDT SAT JUN 22 2002

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* FLOOD WARNING FOR...
  SOUTHEASTERN CLAY COUNTY IN NORTHEAST FLORIDA
  SOUTHEASTERN DUVAL COUNTY IN NORTHEAST FLORIDA
  NORTHEASTERN PUTNAM COUNTY IN NORTHEAST FLORIDA
  NORTHERN ST. JOHNS COUNTY IN NORTHEAST FLORIDA

* UNTIL 300 PM EDT

* AT 1100 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  THAT 4 TO 6 INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF
  NORTHEASTERN PUTNAM AND SOUTHEASTERN CLAY COUNTIES ALONG HIGHWAY
  17 BETWEEN PALATKA AND GREEN COVE SPRINGS. STREAMS HAVE LIKELY
  OVERFLOWED THEIR BANKS IN THIS AREA. THIS AREA OF HEAVY RAINFALL
  IS MOVING INTO NORTHERN ST JOHNS AND SOUTHEASTERN DUVAL COUNTIES
  WITH RAINFALL RATES OF 2 TO 3 INCHES PER HOURS AND FLOODING IS
  EXPECTED IN THESE AREAS AS WELL.

* EXCESSIVE RUNOFF FROM THIS RAINFALL WILL CAUSE RAPID FLOODING
  OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.
  ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS
  OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT
  TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS   
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.   
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN ALSO CALL THE NATIONAL WEATHER
SERVICE IN JACKSONVILLE DIRECTLY AT 904-741-4370 TO REPORT FLOODING.

$$

LAT...LON 2935 8162 2955 8183 2953 8199 2974 8196
          3027 8203 3056 8171 3056 8152 3047 8140
          3021 8138 2972 8123 2972 8148 2962 8152
          2949 8152 2939 8146

HESS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 2:31 PM EDTTornado WarningJAXMarion59 min
Jun 22, 3:54 PM EDTFlash Flood WarningJAXMarion81 min

Nearby

Flash Flood Warnings in Florida, 2002Every flash flood warning in 2002

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.