Alert archive / Pennsylvania / Flash Flood Warnings in 1990
Flash Flood Warning 61, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Jul 23, 1990, 12:54 AM EDT for Mercer County, Pennsylvania. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1990, 12:54 AM EDT (04:54 UTC)
- Expired
- Jul 23, 1990, 3:09 AM EDT
- In force
- 2 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Mercer County, PA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 4.9 hours before the alert went out and 100 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
- 265 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KYNG 230459
FFWYNG
PAC085-230900-
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1254 AM EDT MON JUL 23 1990
THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 500 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHWEST PENNSYLVANIA
...MERCER
AT 1250 AM EDT WEATHER RADAR INDICATED PATCHES OF MODERATE TO HEAVY
RAIN MOVING THROUGH MERCER COUNTY. HIGHWAY PATROL REPORTS A FEW ROADS
IN THE SOUTHERN PORTION OF THE COUNTY ARE UNDER WATER. THE RAIN IS
EXPECTED TO CONTINUE UNTIL AROUND 3 AM EDT. CONTINUED RAIN WILL CAUSE
ADDITIONAL FLOODING OF ROADS AND SMALL STREAMS.
V
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
SITESWhat 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, Jul 23, 12:39 AM EDT, 15 minutes before
OHZ004-007-230600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AKRON CANTON OH 1235 PM EDT SUN JUL 22 1990 A SMALL STREAM AND URBAN FLOOD WARNING IS IN EFFECT FOR STARK... TUSCARAWAS... CARROLL... HARRISON... JEFFERSON AND GUERNSEY COUNTIES UNTIL 315 AM MONDAY MORNING. A FLOOD WATCH CONTINUES OVERNIGHT FOR MOST OF NORTHEAST AND EAST CENTRAL OHIO...AND UNTIL 4AM FOR THE NORTHERN PANHANDLE COUNTIES OF WEST VIRGINIA AND PARTS OF WESTERN PENNSYLVANIA. AT 1230 AM RADAR SHOWED WIDESPREAD RAIN EAST OF A LINE FROM ANDOVER TO CANTON TO ZANESVILLE. MODERATE TO HEAVY RAIN WAS SHOWING UP FRON NEAR YOUNGSTOWN TO LISBON TO JUST NORTH OF CADIZ. THE PRECIPITATION WAS MOVING EAST AT 25 MPH. BE OEN THE LOOKOUT FOR FLASH FLOODING TONIGHT IF IT RAINS HEAVY FOR 15 MINUTES OR MORE IN YOUR AREA. ALTO
Special weather statement, Jul 23, 12:46 AM EDT, 8 minutes before
OHZ004-007-230600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AKRON CANTON OH 1235 AM EDT SUN JUL 22 1990 A SMALL STREAM AND URBAN FLOOD WARNING IS IN EFFECT FOR STARK... TUSCARAWAS... CARROLL... HARRISON... JEFFERSON AND GUERNSEY COUNTIES UNTIL 315 AM MONDAY MORNING. A FLOOD WATCH CONTINUES OVERNIGHT FOR MOST OF NORTHEAST AND EAST CENTRAL OHIO...AND UNTIL 4AM FOR THE NORTHERN PANHANDLE COUNTIES OF WEST VIRGINIA AND PARTS OF WESTERN PENNSYLVANIA. AT 1230 AM RADAR SHOWED WIDESPREAD RAIN EAST OF A LINE FROM ANDOVER TO CANTON TO ZANESVILLE. MODERATE TO HEAVY RAIN WAS SHOWING UP FRON NEAR YOUNGSTOWN TO LISBON TO JUST NORTH OF CADIZ. THE PRECIPITATION WAS MOVING EAST AT 25 MPH. JBE ON THE LOOKOUT FOR FLASH FLOODING TONIGHT IF IT RAINS HEAVY FOR 15 MINUTES OR MORE IN YOUR AREA. ALTO $$ ...CORRECTED TIME OF STATEMENT...
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 11:49 PM EDT | Flash Flood Warning | CLE | Venango | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1990Every flash flood warning in 1990
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.