Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 50, NWS Pittsburgh, PA

May 2, 1998Muskingum County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at May 2, 1998, 8:05 AM EDT for Muskingum County, Ohio. 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
May 2, 1998, 8:05 AM EDT (12:05 UTC)
Expired
May 2, 1998, 12:00 PM EDT
In force
4 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Muskingum County, OH

The radar

The Pittsburgh radar (KPBZ), 159 km from the middle of the area, began a volume at 12:06 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

Pittsburgh, PA (KPIT), launched 12:00Z, 0.1 hours before the alert went out and 164 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, Pittsburgh, PA at 12:00Z on 1998-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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, Pittsburgh, PA at 12:00Z on 1998-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
28 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 4:57 AM EDTFlash Flood WarningPBZGuernsey, Noble4 hr
May 2, 5:30 AM EDTFlash Flood WarningPBZCoshocton4 hr
May 2, 5:30 AM EDTFlash Flood WarningPBZMonroe4 hr
May 2, 9:03 AM EDTFlash Flood WarningPBZMonroe, Noble3 hr
May 2, 9:03 AM EDTFlash Flood WarningPBZCoshocton, Guernsey3 hr
May 2, 12:00 PM EDTFlash Flood WarningPBZGuernsey, Monroe, Muskingum, Noble4 hr
May 2, 3:45 PM EDTFlash Flood WarningPBZCoshocton, Guernsey, Muskingum, Noble6 hr
May 2, 3:45 PM EDTFlash Flood WarningPBZTuscarawas6 hr
May 2, 3:45 PM EDTFlash Flood WarningPBZMonroe6 hr
May 2, 6:12 AM EDTFlash Flood WarningPBZWetzel4 hr

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.