Alert archive / Pennsylvania / Flash Flood Warnings in 1990
Flash Flood Warning 40, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Jul 15, 1990, 7:39 AM EDT for Crawford County, Venango County, Warren County, Pennsylvania. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1990, 7:39 AM EDT (11:39 UTC)
- Expired
- Jul 15, 1990, 10:00 AM EDT
- In force
- 2 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Crawford County, PA, Venango County, PA, Warren 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, 11.7 hours before the alert went out and 140 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
- 196 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KERI 151139
FFWERI
PAC039-121-123-151400-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ERIE PA
739 AM EDT SUN JUL 15 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1000 AM EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE NORTHWEST PART OF PENNSYLVANIA
CRAWFORD...VENANGO...WARREN
AT 730 AM WEATHER RADAR CONTINUES TO INDICATE HEAVY RAIN ACROSS
PORTIONS OF CRAWFORD...VENANGO AND WARREN COUNTIES. NUMEROUS
REPORTS OF FLOODING HAVE BEEN RECEIVED FROM ALL THREE COUNTIES.
A FLASH FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT.
MOST FLASH FLOOD DEATHS 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.
TO ESCAPE RISING WATER MOVE TO HIGHER GROUND.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE 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 IMMEDIATELY.
MOVE TO HIGHER GROUND.
A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT. IT IS IMPORTANT TO
KNOW WHERE Y]OU ARE IN RELATION TO STREAMS...RIVERS...OR CREEKS THAT
CAN BECOME DEADLY WHEN SWOLLEN BY HEAVY RAIN.
SANDSTROMThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 1:07 AM EDT | Flash Flood Warning | CLE | Lawrence | 2 hr |
| Jul 15, 1:59 AM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| Jul 15, 2:06 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 3:10 AM EDT | Flash Flood Warning | CLE | Lawrence, Mercer | 3 hr |
| Jul 15, 4:40 AM EDT | Flash Flood Warning | CLE | Venango | 3 hr |
| Jul 15, 5:26 AM EDT | Flash Flood Warning | CLE | Warren | 3 hr |
| Jul 15, 5:44 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 9:53 AM EDT | Flash Flood Warning | CLE | Crawford, Venango, Warren | 3 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.