Alert archive / Pennsylvania / Flash Flood Warnings in 1998

Flash Flood Warning 109, NWS Pittsburgh, PA

June 27, 1998Allegheny County, Washington County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 27, 1998, 1:01 PM EDT for Allegheny County, Washington County, Pennsylvania. It was in force for 119 min. 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 27, 1998, 1:01 PM EDT (17:01 UTC)
Expired: Jun 27, 1998, 3:00 PM EDT
In force: 119 min
Issued by: NWS Pittsburgh, PA
Area: Whole counties

Counties Allegheny County, PA, Washington County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.0 hours before the alert went out and 9 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 669 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 559 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.0

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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 27, 11:34 AM EDT, 1 hour 27 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 8:00 PM EDT	Flash Flood Warning	PBZ	Guernsey, Harrison, Tuscarawas	3 hr
Jun 26, 8:17 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe	58 min
Jun 26, 8:18 PM EDT	Flash Flood Warning	PBZ	Coshocton	3 hr
Jun 26, 8:18 PM EDT	Flash Flood Warning	PBZ	Belmont	3 hr
Jun 26, 8:40 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont	55 min
Jun 26, 8:40 PM EDT	Severe Thunderstorm Warning	PBZ	Muskingum	60 min
Jun 26, 8:46 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey	54 min
Jun 26, 9:06 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe	59 min
Jun 26, 9:13 PM EDT	Severe Thunderstorm Warning	PBZ	Noble	57 min
Jun 26, 9:19 PM EDT	Flash Flood Warning	PBZ	Monroe, Noble	3 hr
Jun 26, 11:00 PM EDT	Flash Flood Warning	PBZ	Guernsey, Tuscarawas	5 hr
Jun 26, 11:46 PM EDT	Flash Flood Warning	PBZ	Monroe	4 hr
Jun 27, 2:55 AM EDT	Flash Flood Warning	PBZ	Muskingum	2 hr
Jun 27, 4:45 AM EDT	Flash Flood Warning	PBZ	Coshocton, Muskingum	3 hr
Jun 27, 7:20 AM EDT	Flash Flood Warning	PBZ	Coshocton, Muskingum	5 hr
Jun 27, 8:51 AM EDT	Flash Flood Warning	PBZ	Tuscarawas	2 hr
Jun 27, 9:42 AM EDT	Severe Thunderstorm Warning	PBZ	Monroe	58 min
Jun 27, 9:50 AM EDT	Flash Flood Warning	PBZ	Belmont, Guernsey	3 hr
Jun 27, 10:49 AM EDT	Flash Flood Warning	PBZ	Tuscarawas	2 hr
Jun 27, 11:38 AM EDT	Flash Flood Warning	PBZ	Muskingum	2 hr
Jun 27, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Tuscarawas	76 min
Jun 27, 6:00 PM EDT	Tornado Warning	PBZ	Tuscarawas	40 min
Jun 27, 6:04 PM EDT	Flash Flood Warning	PBZ	Coshocton, Guernsey, Tuscarawas	4 hr
Jun 27, 6:17 PM EDT	Severe Thunderstorm Warning	PBZ	Columbiana	58 min
Jun 27, 6:24 PM EDT	Severe Thunderstorm Warning	PBZ	Muskingum	31 min
Jun 27, 6:30 PM EDT	Tornado Warning	PBZ	Columbiana	60 min
Jun 27, 6:37 PM EDT	Tornado Warning	PBZ	Harrison	73 min
Jun 27, 6:39 PM EDT	Tornado Warning	PBZ	Tuscarawas	31 min
Jun 27, 6:47 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey	58 min
Jun 27, 6:54 PM EDT	Flash Flood Warning	PBZ	Harrison	4 hr
Jun 27, 6:57 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll	63 min
Jun 27, 7:11 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton	29 min
Jun 27, 7:14 PM EDT	Severe Thunderstorm Warning	PBZ	Muskingum	61 min
Jun 27, 7:16 PM EDT	Severe Thunderstorm Warning	PBZ	Noble	59 min
Jun 27, 7:25 PM EDT	Flash Flood Warning	PBZ	Columbiana	4 hr
Jun 27, 7:29 PM EDT	Flash Flood Warning	PBZ	Muskingum	4 hr
Jun 27, 7:43 PM EDT	Tornado Warning	PBZ	Guernsey	27 min
Jun 27, 7:46 PM EDT	Tornado Warning	PBZ	Noble	59 min
Jun 27, 7:51 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe	69 min
Jun 26, 8:06 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	59 min
Jun 27, 1:20 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	58 min
Jun 27, 1:36 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	57 min
Jun 27, 7:57 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	43 min
Jun 26, 8:32 PM EDT	Flash Flood Warning	PBZ	Marshall	2 hr
Jun 26, 8:32 PM EDT	Severe Thunderstorm Warning	PBZ	Monongalia	43 min
Jun 26, 8:51 PM EDT	Severe Thunderstorm Warning	PBZ	Wetzel	59 min
Jun 26, 9:04 PM EDT	Severe Thunderstorm Warning	PBZ	Marion	56 min
Jun 26, 9:10 PM EDT	Severe Thunderstorm Warning	PBZ	Preston	40 min
Jun 26, 9:56 PM EDT	Severe Thunderstorm Warning	PBZ	Tucker	44 min
Jun 27, 3:09 AM EDT	Severe Thunderstorm Warning	PBZ	Monongalia	26 min
Jun 27, 3:19 AM EDT	Severe Thunderstorm Warning	PBZ	Preston	41 min
Jun 27, 10:08 AM EDT	Severe Thunderstorm Warning	PBZ	Wetzel	44 min
Jun 27, 7:57 PM EDT	Tornado Warning	PBZ	Marshall	48 min

Nearby

Flash Flood Warnings in Pennsylvania, 1998 Every 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.