Alert archive / Ohio / Flash Flood Warnings in 1991
Flash Flood Warning 17, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Aug 20, 1991, 1:36 AM EDT for Ottawa County, Ohio. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1991, 1:36 AM EDT (05:36 UTC)
- Expired
- Aug 20, 1991, 5:45 AM EDT
- In force
- 4 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Ottawa County, OH
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 5.6 hours before the alert went out and 142 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
- 362 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 43 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 KTOL 200541 COR FFWTOL OHC123-200945- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE TOLEDO OH 136 AM EDT TUE AUG 20 1991 THE NATIONAL WEATHER SERVICE IN TOLEDO HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 545 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN NORTH CENTRAL OHIO ...OTTAWA COUNTY AT 125 AM WEATHER RADAR INDICATED AREAS OF THUNDERSTORMS OVER OTTAWA COUNTY. NEAR TEN INCHES OF RAIN /9.85/ WAS REPORTED BY A WEATHER OBSERVER IN PORT CLINTON FROM 2 PM MONDAY THROUGH MIDNIGHT. THE OTTAWA COUNTY SHERIFF`S OFFICE REPORTED SEVERAL STREETS UNDERWATER IN PORT CLINTON. THE THUNDERSTORMS WILL CONTINUE THROUGH THE EARLY MORNING HOURS AND FLOODING OF STREETS AND LOW-LYING AREAS WILL ALSO CONTINUE. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS. DO NOT DRIVE YOUR VEHICLE ACROSS FLOODED ROADS. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. MURPHY CORRECTED WORDING LAST PARAGRAPH
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, Aug 20, 12:51 AM EDT, 45 minutes before
OHZ001-002-200600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OHIO 1250 AM EDT TUE AUG 20 1991 A STRONG THUNDERSTORM WAS MOVING OVER KELLEYS ISLAND EARLY THIS MORNING. AT 1245 AM RADAR SHOWED SCATTERED STRONG THUNDERSTORMS OVER LAKE ERIE NORTH OF CLEVELAND...OVER KELLEYS ISLAND...PELEE ISLAND AND EAST OF TOLEDO NEAR OAK HARBOR AND FREMONT. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 15 MPH. A FLOOD WARNING CONTINUES IN EFFECT FOR OTTAWA COUNTY UNTIL 130 AM EDT. BETWEEN 2 PM AND MIDNIGHT ALMOST 10 INCHES OF RAIN /9.85/ FELL IN PORT CLINTON...30 MILES SOUTHEAST OF TOLEDO. THESE THUNDERSTORMS CAN PRODUCE HEAVY RAIN...GUSTY WINDS AND HAIL AND PONDING OF WATER ON ROADS. -PEOPLE OVER THE NORTHWEST QUARTER OF OHIO CAN EXPECT SHOWERS AND THUNDERSTORMS INTO THE EARLY MORNING HOURS. IF THREATENING WEATHER IS OBSERVED MOVE TO A PLACE OF SAFETY. KIELTYKA
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:14 PM EDT | Tornado Warning | CLE | Stark | 31 min |
| Aug 19, 11:32 PM EDT | Flash Flood Warning | CLE | Ottawa | 118 min |
| Aug 20, 5:44 AM EDT | Flash Flood Warning | CLE | Ottawa | 6 hr |
| Aug 20, 4:59 PM EDT | Flash Flood Warning | CLE | Columbiana | 61 min |
Nearby
Flash Flood Warnings in Ohio, 1991Every flash flood warning in 1991
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.