Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 13, NWS Northern Indiana

July 22, 1998Allen County, Van Wert County, Ohio

NWS Northern Indiana issued this flash flood warning at Jul 22, 1998, 12:54 AM EDT for Allen County, Van Wert County, Ohio. It was in force for 3 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
Jul 22, 1998, 12:54 AM EDT (04:54 UTC)
Expired
Jul 22, 1998, 3:55 AM EDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Whole counties

Counties Allen County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 129 km from the middle of the area, began a volume at 04:53 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, 4.9 hours before the alert went out and 161 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 1998-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1651 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, Cncnati-Daytn, OH at 00:00Z on 1998-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
1651 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1488 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
123 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 
TTAA00 KFWA 220456
FFWFWA
INC003-069-179-183-OHC003-161-220755-

BULLETIN- EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1154 PM EST TUE JUL 21 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR PEOPLE IN THE FOLLOWING LOCATIONS...
  ALLEN COUNTY IN NORTHEASTERN INDIANA
  HUNTINGTON COUNTY IN NORTH CENTRAL INDIANA
  WELLS COUNTY IN NORTHEASTERN INDIANA
  WHITLEY COUNTY IN NORTH CENTRAL INDIANA
  ALLEN COUNTY IN NORTHWESTERN OHIO
  VAN WERT COUNTY IN NORTHWESTERN OHIO

* UNTIL 255 AM EST (355 AM EDT)

* AT 1140 PM EST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN FROM FROM NORTH
  MANCHESTER TO HUNTINGTON TO BLUFFTON TO FORT WAYNE TO VAN WERT
  TO LIMA... MOVING JUST SOUTH OF EAST AT 25 MPH.

* VERY HEAVY RAIN HAD BEEN REPORTED IN MANY AREAS.  OBSERVERS IN
  FORT WAYNE REPORTED 3 INCHES IN THE LAST HOUR ALONE.
  THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED TO REDEVELOP ON THE
  WESTERN FLANK OF THIS LINE OF STORMS AND WILL DROP ADDITIONAL
  HEAVY RAIN OVER THE NEXT 2 HOURS.  AN ADDITIONAL 2 TO 3 INCHES IS
  POSSIBLE.

IF YOU ARE IN THESE AREAS... BE PREPARED TO MOVE TO HIGHER GROUND
IMMEDIATELY IF FLASH FLOODING IS OBSERVED! DO NOT DRIVE ACROSS
FLOODED ROADS!

TEH/BFO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 9:30 PM EDTSevere Thunderstorm WarningIWXDefiance, Henry, Williams45 min
Jul 21, 9:30 PM EDTSevere Thunderstorm WarningIWXFulton45 min
Jul 21, 9:34 PM EDTSevere Thunderstorm WarningIWXPaulding, Putnam61 min
Jul 21, 10:08 PM EDTSevere Thunderstorm WarningIWXAllen, Van Wert62 min
Jul 21, 10:18 PM EDTSevere Thunderstorm WarningIWXDefiance, Henry47 min
Jul 21, 10:35 PM EDTSevere Thunderstorm WarningIWXPaulding, Putnam45 min
Jul 21, 11:16 PM EDTSevere Thunderstorm WarningIWXVan Wert64 min
Jul 21, 11:16 PM EDTSevere Thunderstorm WarningIWXAllen64 min

Nearby

Flash Flood Warnings in Ohio, 1998Every flash flood warning in 1998

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.