Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 146, NWS Pittsburgh, PA

June 29, 1998Monroe County, Noble County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at Jun 29, 1998, 10:54 PM EDT for Monroe County, Noble County, Ohio. It was in force for 12 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 29, 1998, 10:54 PM EDT (02:54 UTC)
Expired
Jun 30, 1998, 11:00 AM EDT
In force
12 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Monroe County, OH, Noble County, OH

The radar

The Pittsburgh radar (KPBZ), 125 km from the middle of the area, began a volume at 02:58 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 00:00Z, 2.9 hours before the alert went out and 124 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 00:00Z on 1998-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1362 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 00:00Z on 1998-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
1362 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.2

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
Jun 29, 8:33 PM EDTTornado WarningPBZTuscarawas57 min
Jun 29, 9:28 PM EDTTornado WarningPBZTuscarawas32 min
Jun 29, 9:38 PM EDTSevere Thunderstorm WarningPBZCarroll, Harrison, Jefferson72 min
Jun 29, 10:54 PM EDTFlash Flood WarningPBZBelmont, Carroll, Guernsey, Harrison, Jefferson, Tuscarawas12 hr
Jun 29, 10:54 PM EDTFlash Flood WarningPBZCoshocton, Muskingum12 hr
Jun 30, 10:40 AM EDTFlash Flood WarningPBZBelmont, Guernsey, Harrison, Monroe, Noble5 hr
Jun 30, 10:40 AM EDTFlash Flood WarningPBZCoshocton, Tuscarawas5 hr
Jun 30, 10:40 AM EDTFlash Flood WarningPBZMuskingum5 hr
Jun 30, 1:41 PM EDTSevere Thunderstorm WarningPBZColumbiana57 min
Jun 30, 1:49 PM EDTSevere Thunderstorm WarningPBZCarroll61 min
Jun 30, 2:19 PM EDTFlash Flood WarningPBZCarroll, Columbiana, Jefferson5 hr
Jun 30, 2:21 PM EDTSevere Thunderstorm WarningPBZJefferson59 min
Jun 30, 3:18 PM EDTFlash Flood WarningPBZBelmont, Carroll, Guernsey, Harrison, Jefferson, Tuscarawas13 hr
Jun 30, 3:18 PM EDTFlash Flood WarningPBZMonroe, Noble13 hr
Jun 30, 3:18 PM EDTFlash Flood WarningPBZColumbiana13 hr
Jun 30, 3:18 PM EDTFlash Flood WarningPBZCoshocton, Muskingum13 hr
Jun 30, 3:48 PM EDTSevere Thunderstorm WarningPBZJefferson42 min
Jun 30, 4:12 PM EDTSevere Thunderstorm WarningPBZCarroll, Tuscarawas58 min
Jun 30, 1:06 AM EDTFlash Flood WarningPBZGreene10 hr
Jun 30, 2:19 PM EDTFlash Flood WarningPBZBeaver5 hr
Jun 30, 2:21 PM EDTSevere Thunderstorm WarningPBZBeaver59 min
Jun 30, 2:39 PM EDTSevere Thunderstorm WarningPBZAllegheny, Butler71 min
Jun 30, 2:55 PM EDTSevere Thunderstorm WarningPBZWashington60 min
Jun 30, 3:05 PM EDTSevere Thunderstorm WarningPBZWestmoreland75 min
Jun 30, 3:09 PM EDTSevere Thunderstorm WarningPBZArmstrong61 min
Jun 30, 3:23 PM EDTFlash Flood WarningPBZWashington5 hr
Jun 30, 3:25 PM EDTSevere Thunderstorm WarningPBZIndiana60 min
Jun 30, 4:35 PM EDTSevere Thunderstorm WarningPBZFayette45 min
Jun 30, 4:47 PM EDTFlash Flood WarningPBZFayette, Greene3 hr
Jun 30, 5:42 PM EDTSevere Thunderstorm WarningPBZPreston58 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.