Alert archive / Pennsylvania / Flash Flood Warnings in 1990
Flash Flood Warning 12, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Jun 18, 1990, 10:36 AM EDT for Elk County, McKean County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1990, 10:36 AM EDT (14:36 UTC)
- Expired
- Jun 18, 1990, 2:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Elk County, PA, McKean 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 2.6 hours before the alert went out and 146 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
- 2093 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 690 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPIT 181437 FFWERI PAC047-083-181800- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ERIE PA ISSUED BY PITTSBURGH PA 1036 AM EDT MON JUN 18 1990 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 200 PM EDT FOR THE FOLLOWING LOCATIONS... IN NORTHWEST PENNSYLVANIA ...ELK COUNTY...MCKEAN COUNTY AT 1035 AM WEATHER RADAR SHOWED THUNDERSTORMS WITH TORRENTIAL RAINS OVER MCKEAN AND ELK COUNTIES. NUMEROUS REPORTS OF ROADWAY FLOODING HAVE BEEN REPORTED NEAR BRADFORD...WITH 2 INCHES OF RAIN ALREADY FALLEN. 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. A FLASH FLOOD WARNING MEANS THAT 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 UP TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
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, Jun 18, 5:19 AM EDT, 5 hours 17 minutes before
OHZALL-191200- SEVERE WEATHER OUTLOOK FOR OHIO NATIONAL WEATHER SERVICE CLEVELAND OH 520 AM EDT MON JUN 18 1990 THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT THERE IS A SLIGHT CHANfCE OF SEVERE THUNDERSTORMS IN SOUTHEAST OHIO TODAY. NO SEVERE THUNDERSTORMS ARE EXPECTED IN OHIO TONIGHT. SJN
Special weather statement, Jun 18, 5:30 AM EDT, 5 hours 6 minutes before
PAZ001-002-181100 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 530 AM EDT MON JUN 18 1990 ...A LINE OF STRONG THUNDERSTORMS ARE HEADED FOR NORTHWEST PENNSYLVANIA AND THE PENNSYLVANIA WATERS OF LAKE ERIE... AT 530 AM ERIE WEATHER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS SITUATED FROM ASHTABULA COUNTY IN OHIO AND EXTENDING NORTH ACROSS LAKE ERIE INTO THE PORT BURWELL AND LONG POINT AREAS. THE LINE WAS MOVING TO THE EAST AT AROUND 45 TO 50 MILES AND HOUR AND WILL BE MOVING INTO PARTS OF NORTHWEST PENNSYLVANIA AND THE PENNSYLVANIA WATERS OF LAKE ERIE...BETWEEN 545 AND 600 AM THIS MORNING. SOME OF THESE STORMS MAY PRODUCE VERY HEAVY RAIN...STRONG AND GUSTY WINDS AND HAIL. SANDSTROM
Special weather statement, Jun 18, 6:10 AM EDT, 4 hours 26 minutes before
OHZ004-007-DDHHHH- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AKRON CANTON OH 610 AM EDT MON JUN 18 1990 AT 600 AM WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS OVER EAST CENTRAL OHIO THAT EXTEND FROM NEAR ST. CLAIRSVILLE IN BELMONT COUNTY SOUTH TO MARIETTA IN WASHINGTON COUNTY. THESE STORMS ARE MOVING EAST AT 35 MPH AND COULD PRODUCE LOCALLY HEAVY RAINS... SMALL HAIL... AND BRIEF WIND GUST AS THEY MOVE THROUGH. THESE STORMS SHOU$LD REACH THE OHIO RIVER IN BELMONT AND MONROE COUNTIES BETWEEN 630AM AND 700AM. ALTO
Special weather statement, Jun 18, 10:17 AM EDT, 19 minutes before
PAZ003-181600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 1016 AM EDT MON JUN 18 1990 THUNDERSTORMS WITH HEAVY RAIN WERE MOVING THROUGH LAWRENCE COUNTY PENNSYLVANIA THIS MORNING. AT 1010 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF THUNDERSTORMS FROM FRANKLIN PENNSYLVAINA THROUGH NEWCASTLE TO THE OHIO-PENNSYLVANIA BORDER. THESE STORMS WERE MOVING EAST AT 35 MPH AND WILL MOVE OUT OF LAWRENCE COUNTY BY 11 AM. VERvY HEAVY RAIN... STRONG GUSTY WINDS AND SMALL HAIL ARE POSSIBLE WITH THE PASSAGE OF THESE STORMS. APFEL
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 5:54 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 66 min |
| Jun 18, 6:53 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 82 min |
| Jun 18, 9:08 AM EDT | Severe Thunderstorm Warning | CLE | McKean | 67 min |
| Jun 18, 11:14 AM EDT | Flash Flood Warning | CLE | Potter | 61 min |
| Jun 18, 11:14 AM EDT | Severe Thunderstorm Warning | CLE | Potter | 61 min |
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.