Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 48, NWS Cleveland, OH

May 24, 1991Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at May 24, 1991, 3:33 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 57 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 24, 1991, 3:33 PM EDT (19:33 UTC)
Expired: May 24, 1991, 4:30 PM EDT
In force: 57 min
Issued by: NWS Cleveland, OH
Area: Whole counties

Counties Crawford County, PA, Erie County, PA

What was reported inside it

Time	Report	Where	Remark
May 24, 3:50 PM EDT	Thunderstorm Wind 0	Crawford, PA
May 24, 4:15 PM EDT	Thunderstorm Wind 0	Erie, PA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 7.6 hours before the alert went out and 288 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: 650 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 925 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 38 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.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, May 24, 12:13 PM EDT, 3 hours 20 minutes before

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Special weather statement, May 24, 12:18 PM EDT, 3 hours 15 minutes before

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Special weather statement, May 24, 1:26 PM EDT, 2 hours 7 minutes before

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Local storm report, May 24, 1:30 PM EDT, 2 hours 3 minutes before

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Special weather statement, May 24, 1:57 PM EDT, 1 hour 36 minutes before

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Special weather statement, May 24, 2:46 PM EDT, 47 minutes before

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The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 12:16 PM EDT	Severe Thunderstorm Warning	CLE	Sandusky	59 min
May 24, 12:19 PM EDT	Severe Thunderstorm Warning	CLE	Erie	56 min
May 24, 1:13 PM EDT	Severe Thunderstorm Warning	CLE	Lorain	62 min
May 24, 1:55 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	65 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1991 Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.