Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 12, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at May 6, 1997, 12:20 AM EDT for Crawford County, Pennsylvania. It was in force for 40 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
- May 6, 1997, 12:20 AM EDT (04:20 UTC)
- Expired
- May 6, 1997, 1:00 AM EDT
- In force
- 40 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Crawford County, PA
The radar
The Pittsburgh radar (KPBZ), 129 km from the middle of the area, began a volume at 04:21 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, 4.3 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2371 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 221 m²/s²
- 0-3 km storm-relative helicity
- 482 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCLE 060422 RRA SVRCLE PAC039-060500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 1220 AM EDT TUE MAY 6 1997 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 100 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN PENNSYLVANIA ...CRAWFORD COUNTY AT 1220 PM WEATHER SERVICE RADAR IN CLEVELAND INDICATED A SEVERE THUNDERSTORM MOVING FROM OHIO INTO NORTHWEST CRAWFORD COUNTY. THE STORM IS MOVING TO THE EAST AT 45 MPH AND WILL REACH CAMBRIDGE SPRINGS BY 1240 AM. HAIL IS INDICATED WITH THIS STORM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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 5, 10:18 PM EDT, 2 hours 2 minutes before
OHZ002>014-017>023-027>033-036>038-047-089-PAZ001>003-060400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 1018 PM EDT MON MAY 5 1997 THE HIGH WIND WARNING FOR ALL OF NORTHERN OHIO AND ERIE AND CRAWFORD COUNTIES IN PENNSYLVANIA HAS BEEN ALLOWED TO EXPIRE AT 10 PM. WINDS HAVE DIMINISHED THIS EVENING TO SPEEDS OF ONLY 20 TO 30 MPH AND WILL DIMINISH TO 15 TO 25 MPH LATER TONIGHT ELIMINATING ANY CHANCE FOR FURTHER WIND DAMAGE. THE LOW RESPONSIBLE FOR THE HIGH WINDS HAS MOVED FURTHER NORTH INTO CANADA AWAY FROM OUR AREA. A FEW THUNDERSTORMS ARE STILL POSSIBLE OVERNIGHT AND COULD RESULT IN LOCALLY STRONG WINDS DURING THE STORMS BUT NO DAMAGE IS EXPECTED. ADAMS
Special weather statement, May 5, 10:19 PM EDT, 2 hours 1 minute before
OHZ002>014-017>023-027>033-036>038-047-089-PAZ001>003-060400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 1018 PM EDT MON MAY 5 1997 THE HIGH WIND WARNING FOR ALL OF NORTHERN OHIO AND ERIE AND CRAWFORD COUNTIES IN PENNSYLVANIA HAS BEEN ALLOWED TO EXPIRE AT 10 PM. WINDS HAVE DIMINISHED THIS EVENING TO SPEEDS OF ONLY 20 TO 30 MPH AND WILL DIMINISH TO 15 TO 25 MPH LATER TONIGHT ELIMINATING ANY CHANCE FOR FURTHER WIND DAMAGE. THE LOW RESPONSIBLE FOR THE HIGH WINDS HAS MOVED FURTHER NORTH INTO CANADA AWAY FROM OUR AREA. A FEW THUNDERSTORMS ARE STILL POSSIBLE OVERNIGHT AND COULD RESULT IN LOCALLY STRONG WINDS DURING THE STORMS BUT NO DAMAGE IS EXPECTED. ADAMS
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 2:36 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 69 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1997Every severe thunderstorm warning in 1997
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.