Alert archive / Ohio / Flash Flood Warnings in 1991

Flash Flood Warning 8, NWS Cleveland, OH

May 25, 1991Ottawa County, Sandusky County, Ohio

NWS Cleveland, OH issued this flash flood warning at May 25, 1991, 7:12 PM EDT for Ottawa County, Sandusky County, Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 25, 1991, 7:12 PM EDT (23:12 UTC)
Expired
May 25, 1991, 10:15 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Ottawa County, OH, Sandusky County, OH

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 11.2 hours before the alert went out and 147 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.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 1991-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 1991-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
502 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTOL 252313
FFWTOL
OHC123-143-260215-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TOLEDO OH
712 PM EDT SAT MAY 25 1991
 
THE NATIONAL WEATHER SERVICE IN TOLEDO HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1015 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL OHIO
 
   ...OTTAWA COUNTY...SANDUSKY COUNTY
 
AT 710 PM WEATHER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
ENTERING WESTERN OTTAWA AND SANDUSKY COUNTIES. THE STORMS WERE MOVING
NORTHEAST AT 25 MPH. HEAVY RAIN FROM THESE STORMS WILL CAUSE
SIGNIFICANT FLOODING OF LOW-LYING AREAS.
 
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.
 
MURPHY

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

Local storm report, May 25, 4:06 PM EDT, 3 hours 6 minutes before
STORM REPORT CORRECTION
NATIONAL WEATHER SERVICE ERIE, PA
404 PM EDT SAT MAY 25 1991

STORM REPORT FOR  FRIDAY MAY 24 1991

TIME  EDT    EVENT
=====================================================================
 1550 EDT....NUMEROUS TREES/LIMBS DOWN 5 MILES NW OF CAMBRIDGE
             SPRINGS IN CRAWFORD COUNTY...REPORTED BY FIRE
             CONTROL...HIGH WIND GUSTS.
 1615 EDT....NUMEROUS TREES/LIMBS DOWNED...POWER LINE POLES
             SNAaPPED/LINES DOWN/POWER OUTAGES AT WATERFORD IN SOUTHERN
             ERIE COUNTY...REPORTED BY WJET TV-24 ON LOCAL NEWS.

 PARRISH
Special weather statement, May 25, 4:53 PM EDT, 2 hours 19 minutes before
OHZALL-252300-

SPECIAL WEATHER STATEMENT AND AFTERNOON OHIO WEATHER STORY
NATIONAL WEATHER SERVICE CLEVELAND OH
455 PM EDT SAT MAY 25 1991

OHIO IS APT TO GET A LOT OF THUNDERY WEATHER OVER THE NEXT FEW DAYS.

SHOWERS AND THUNDERSTORMS ARE A GOOD BET IN OHIO BOTH TONIGHT AND
SUNDAY. FOR SUNDAY NIGHT AND MONDAY SHOWERS AND THUNDERSTORMS SHOULD
BECOME LESS LIKELY... BUT SOME COULD STILL OCCUR.

SOME OF THE THUNDERSTORMS THAT WILL AFFECT NORTHWEST OHIO TONIGHT COULD
BRING DAMAGING WINDS OR LARGE HAIL... AND A SEVERE THUNDERSTORM WATCH
IS IN EFFECT THERE UNTIL 10 PM. MAJOR CITIES IN THE WATCH AREA
INCLUDE BOWLING GREEN... DEFIANCE... FINDLAY... AND TOLEDO. BRIEF
TORRENTIAL RAINS FROM THUNDERSTORMS WILL BE POSSIBLE ANYWHERE IN THE
STATE TONIGHT.

ALONG WITH A PERSISTENT THREAT OF SHOWERS AND THUNDERSTORMS... OHIO WILL
SEE CONTINUED WARM HUMID WEATHER FOR THE NEXT FEW DAYS. LOWS BOTH
TONIGHT AND SUNDAY NIGHT ARE FORECAST TO BE FROM 65 TO 70. HIGHS BOTH
SUNDAY AND MEMORIAL DAY ARE PREDICTED TO BE NEAR 85. NORMALLY AT THIS
TIME OF YEAR LOWS ARE FROM THE UPPER 40S TO THE MID 50S AND HIGHS ARE
IN THE MID 70S.

TODAY IN OHIO BROUGHT VARIABLE CLOUDINESS WITH DRY WEATHER TO THE
SOUTHERN COUNTIES... AND VARIABLE CLOUDINESS WITH SCATTERED SHOWERS AND
THUNDERSTORMS TO THE NORTH. MOST PLACES SAW AFTERNOON TEMPERATURES IN
THE MID OR UPPER 80S... BUT THE MERCURY CLIMBED INTO THE 90S IN THE
COLUMBUS AREA.

THE AFTERNOON WEATHER MAP SHOWED A COLD FRONT JUST NORTH OF LAKE ERIE
AND A SYSTEM OF HIGH PRESSURE OVER THE EASTERN THIRD OF THE UNITED
STATES. THE COLD FRONT IS EXPECTED TO TURN INTO A WARM FRONT FROM
TONIGHT INTO TOMORROW... AND MOVE TO THE EAST COAST MONDAY. THE HIGH
PRESSURE SYSTEM IS UNLIKELY TO CHANGE MUCH OVER THE NEXT FEW DAYS.

KWIATKOWSKI
Special weather statement, May 25, 5:08 PM EDT, 2 hours 4 minutes before
OHZ001-002-011-252230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
508 PM EDT SAT MAY 25 1991

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WILLIAMS... DEFIANCE...
FULTON... HENRY... PAULDING... LUCAS... AND WOOD COUNTIES IN NORTHWEST
OHIO UNTIL 1000 PM EDT.

AT 500 PM WEATHER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN
EXTENDING FROM NEAR WAUSEON IN FULTON COUNTY SOUTH THROUGH HENRY
COUNTY AND INTO NORTHERN PUTNAM COUNTY.  THESE STORMS WERE MOVING
EAST AT 25 MPH.  THE STORMS SHOULD BE INTO WEST TOLEDO AROUND 530 PM.

SOME THUNDERSTORMS THAT WILL AFFECT NORTHWEST OHIO THIS EVENING COULD
PRODUCE DAMAGING WINDS OR LARGE HAIL.  REMAIN ALERT TO RAPIDLY CHANGING
WEATHER CONDUITIONS.  IF THREATENING WEATHER APPROACHES... SEEK SHELTER.

MURPHY
Special weather statement, May 25, 5:49 PM EDT, 1 hour 23 minutes before
OHZALL-260000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
550 PM EDT SAT MAY 25 1991

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTHWEST OHIO
UNTIL 10 PM.

MAJOR CITIES IN THE WATCH AREA INCLUDE BOWLING GREEN... DEFIANCE...
FINDLAY... AND TOLEDO.

AT 540 PM WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS
BETWEEN FINDLAY AND TOLEDO. THE STORMS WERE MOVING NORTHEAST AT ABOUT
25 MPH. IF THEY MAINTAIN THIS COURSE THEY WILL BE OVER LAKE ERIE BY 7
PM.

BESIDES THE CLUSTER OF STRONG STORMS BETWEEN FINDLAY AND TOLEDO...
WEAKER THUNDERSTORMS WERE SCATTERED OVER THE REST OF NORTHWEST OF OHIO
AT 540 PM. THESE STORMS WERE ALSO MOVING NORTHEAST AT 25 MPH. IT IS
POSSIBLE THAT SOME OF THEM WILL STRENGTHEN AS THE EVENING GOES ON.

NO SEVERE WEATHER HAD BEEN REPORTED TO THE WEATHER SERVICE IN OHIO AS
OF 540 PM. HOWEVER SOME OF THE STORMS THAT WILL AFFECT THE NORTHWEST
COUNTIES THIS EVENING COU0LD PRODUCE DAMAGING WINDS OR LARGE HAIL. VERY
HEAVY DOWNPOURS MIGHT ALSO OCCUR. RESIDENTS OF NORTHWEST OHIO SHOULD
REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATEST INFORMATION
FROM THE WEATHER SERVICE.

KWIATKOWSKI
Special weather statement, May 25, 6:10 PM EDT, 1 hour 2 minutes before
OHZALL-260000-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE CLEVELAND OH
610 PM EDT SAT MAY 25 1991

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTHWEST OHIO
UNTIL 10 PM.

MAJOR CITIES IN THE WATCH AREA INCLUDE BOWLING GREEN... DEFIANCE...
AND TOLEDO.

AT 540 PM WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS
BETWEEN FINDLAY AND TOLEDO. THE STORMS WERE MOVING NORTHEAST AT ABOUT
25 MPH. IF THEY MAINTAIN THIS COURSE THEY WILL BE OVER LAKE ERIE BY 7
PM.

BESIDES THE CLUSTER OF STRONG STORMS BETWEEN FINDLAY AND TOLEDO...
WEAKER THUNDERSTORMS WERE SCATTERED OVER THE REST OF NORTHWEST OF OHIO
AT 540 PM. THESE STORMS WERE ALSO MOVING NORTHEAST AT 25 MPH. IT IS
POSSIBLE THAT SOME OF THEM WILL STRENGTHEN AS THE EVENING GOES ON.

NO SEVERE WEATHER HAD BEEN REPORTED TO THE WEATHER SERVICE IN OHIO AS
OF 540 PM. HOWEVER SOME OF THE STORMS THAT WILL AFFECT THE NORTHWEST
COUNTIES THIS EVENING COULD PRODUCE DAMAGING WINDS OR LARGE HAIL. VERY
HEAVY DOWNPOURS MIGHT ALSO OCCUR. RESIDENTS OF NORTHWEST OHIO SHOULD
REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATEST INFORMATION
FROM THE WEATHER SERVICE.

KWIATKOWSKI

CORRECTED TO REMOVE MENTION OF FINDLAY FROM BEING IN WATCH AREA
Special weather statement, May 25, 6:54 PM EDT, 18 minutes before
OHZALL-260100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
655 PM EDT SAT MAY 25 1991

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF NORTHWEST OHIO
UNTIL 10 PM.

MAJOR CITIES IN THE WATCH AREA INCLUDE BOWLING GREEN... DEFIANCE... AND
TOLEDO.

AT 640 PM WEATHER SERVICE RADAR NUMEROUS SHOWERS AND THUNDERSTORMS OVER
NORTHWEST OHIO. THE STRONGEST STORMS WERE IN WOOD COUNTY ABOUT 10 MILES
SOUTH OF TOLEDO. INDIVIDUAL STORMS WERE MOVING NORTHEAST AT ABOUT 20
MPH. HOWEVER NEW THUNDERSTORMS WERE CONTINUALLY FORMING OVER OHIO'S
NORTHWEST COUNTIES... SO THERE WILL BE A THREAT OF THUNDERY WEATHER FOR
MUCH OF THE EVENING.

NO SEVERE WEATHER HAD BEEN REPORTED TO THE WEATHER SERVICE IN OHIO AS
OF 640 PM... ALTHOUGH THERE HAD BEEN SOME HEAVY RAIN.  HOWEVER IT IS
POSSIBLE SOME STORMS IN THE WATCH AREA WILL CAUSE DAMAGING WINDS OR
LARGE HAIL. DOWNPOURS WILL REMAIN POSSIBLE AND PONDING OF WATER MIGHT
OCCUR. RESIDENTS OF NORTHWEST OHIO SHOULD STAY ALERT FOR THREATENING
WEATHER AND LISTEN FOR LATEST INFORMATION FROM THE WEATHER SERVICE.

KWIATKOWSKI

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.