Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 22, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Apr 12, 1994, 6:46 AM EDT for Lawrence County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 12, 1994, 6:46 AM EDT (10:46 UTC)
- Expired
- Apr 12, 1994, 9:45 AM EDT
- In force
- 3 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Lawrence County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 10.8 hours before the alert went out and 68 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
- 1236 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 531 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 121046 FFWYNG PAC073-121345- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE YOUNGSTOWN OH 646 AM EDT TUE APR 12 1994 THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 945 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST PENNSYLVANIA ...LAWRENCE COUNTY AT 645 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING THROUGH LAWRENCE COUNTY. RAINFALL ESTIMATES OVER THE LAST FEW HOURS ARE IN EXCESS OF ONE AND ONE-HALF INCHES. MANY ROADS ARE PARTIALLY COVERED WITH WATER...AND THE SITUATION WILL WORSEN AS THE HEAVY RAINS CONTINUE. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. 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, 3:47 AM EDT, 2 hours 59 minutes before
OHZ023-033-041-PAZ007-013-120830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 245 AM EDT TUE APR 12 1994 THUNDERSTORMS WERE RUMBLING THROUGH THE MAHONING AND SHENANGO VALLEYS OVERNIGHT. AT 240 AM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS FROM ERIE PENNSYLVANIA BACK TO MANSFIELD OHIO. A FEW THUNDERSTORMS WERE EMBEDDED WITHIN THIS LINE OF SHOWERS. THESE STORMS WERE MOVING NORTHEAST AT 20 MILES PER HOUR. THESE THUNDERSTORMS CONTAIN DEADLY LIGHTNING... WIND GUSTS TO 30 MPH...AND BRIEF HEAVY RAIN. AS THE GROUND IN THE MAHONING AND SHENANGO VALLEYS IS ALREADY NEARLY SATURATED...THIS RAINFALL MAY CAUSE FLOODING PROBLEMS. IF YOU LIVE IN A FLOOD-PRONE AREA...BvE ALERT FOR ANY TROUBLES THAT MAY ARISE. TUNE TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES. VEENEMAN
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.