Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 27, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Apr 13, 1994, 1:18 AM EDT for Lawrence County, Mercer County, Pennsylvania. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 13, 1994, 1:18 AM EDT (05:18 UTC)
- Expired
- Apr 13, 1994, 5:15 AM EDT
- In force
- 4 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Lawrence County, PA, Mercer County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 5.3 hours before the alert went out and 84 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
- 3 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1600 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 239 m²/s²
- 0-3 km storm-relative helicity
- 278 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 KYNG 130519 FFWYNG PAC073-085-130915- BULLETIN FLOOD WARNING NATIONAL WEATHER SERVICE YOUNGSTOWN OH 118 AM EDT WED APR 13 1994 THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 515 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST PENNSYLVANIA ...LAWRENCE COUNTY...MERCER COUNTY AT 120 NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS ALONG THE OHIO-PENNSYLVANIA STATE LINE. THESE STORMS WERE MOVING NORTHEAST AT 40 MPH AND HAVE THE CAPACITY FOR VERY HEAVY RAINFALL. SOILS IN THESE AREAS ARE ALREADY SATURATED...SO ANY ADDITIONAL RAINFALL WILL CAUSE FLOODING PROBLEMS. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO MOVE TO HIGHER GROUND IF EVENTS WARRANT. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. VEENEMAN
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, Apr 12, 9:57 PM EDT, 3 hours 21 minutes before
OHZALL-130900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 955 PM EDT TUE APR 12 1994 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR A PORTION OF WESTERN OHIO UNTIL 3AM EDT AND THE REMAINDER OF OHIO EXCEPT SOUTHEAST OHIO UNTIL 5AM EDT. SOME CITIES IN THE WATCH INCLUDE CINCINNATI...DAYTON...FINDLAY... TOLEDO...CLEVELAND...COLUMBUS...ZANESVILLE AND YOUNGSTOWN. WARM MOIST AND UNSTABLE AIR WAS IN PLACE ACROSS THE OHIO VALLEY THIS EVENING AND A COLD FRONT WAS MOVING THROUGH INDIANA. THUNDERSTORMS WERE RAPIDLY DEVELOPING ALONG THE FRONT THIS EVENING AND WERE MOVING INTO WESTERN AND SOUTHERN OHIO. THE THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS THE STATE TONIGHT. VERY HEAVY RAINFALL...STRONG WINDS AND HAIL ARE POSSIBLE WITH THESE STORMS AS THEY MOVE ACROSS THE STATE.
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 1:18 AM EDT | Flash Flood Warning | CLE | Crawford, Erie | 117 min |
| Apr 13, 1:18 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 117 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1994Every flash flood warning in 1994
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.