Alert archive / Indiana / Flash Flood Warnings in 2002

Flash Flood Warning 4, NWS Northern Indiana

June 26, 2002Allen County, Indiana

NWS Northern Indiana issued this flash flood warning at Jun 26, 2002, 8:47 PM EST for Allen County, Indiana. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 26, 2002, 8:47 PM EST (01:47 UTC)
Expired
Jun 27, 2002, 11:00 AM EST
In force
14 hr
Issued by
NWS Northern Indiana
Area
Counties, with a storm outline in the text

County Allen County, IN

The radar

The Northern Indiana radar (KIWX), 54 km from the middle of the area, began a volume at 01:48 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.8 hours before the alert went out and 218 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, Cncnati-Daytn, OH at 00:00Z on 2002-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1563 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, Cncnati-Daytn, OH at 00:00Z on 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 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
1563 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1025 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KIWX 270150
FFWFWA
INC003-270500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
847 PM EST WED JUN 26 2002

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALLEN COUNTY IN INDIANA

* UNTIL 12 MIDNIGHT EST

* AT 847 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN 7 MILES WEST OF FORT WAYNE...
  MOVING EAST AT 10 MPH.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. STORMS CONTINUE TO REDEVELOP AND 
MOVE ACROSS THE FORT WAYNE METRO AREA. BEWARE OF STREET FLOODING... 
ESPECIALLY NEAR UNDERPASSES. SMALL STREAM FLOODING IS ALSO 
EXPECTED...MONITOR STREAM LEVELS AND IF FLASH FLOODING IS 
OBSERVED...MOVE TO HIGHER GROUND IMMEDIATELY

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
NORTHERN INDIANA.

LAT...LON 4120 8534 4101 8534 4096 8520 4098 8482
          4127 8483

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 7:16 PM ESTSevere Thunderstorm WarningIWXAllen59 min
Jun 26, 8:38 PM ESTSevere Thunderstorm WarningIWXAllen52 min
Jun 26, 8:47 PM ESTFlash Flood WarningIWXAllen2 hr
Jun 26, 11:59 PM ESTFlash Flood WarningIWXAllen2 hr
Jun 27, 12:05 AM ESTFlash Flood WarningIWXAllen3 hr

Nearby

Flash Flood Warnings in Indiana, 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.