Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 85, NWS Wilmington, OH

December 31, 1990Darke County, Montgomery County, Preble County, Ohio

NWS Wilmington, OH issued this flash flood warning at Dec 31, 1990, 8:55 AM EST for Darke County, Montgomery County, Preble County, Ohio. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 31, 1990, 8:55 AM EST (13:55 UTC)
Expired
Dec 31, 1990, 2:00 PM EST
In force
5 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Darke County, OH, Montgomery County, OH, Preble County, OH

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

Dayton/James M C, OH (KDAY), launched 12:00Z, 1.9 hours before the alert went out and 27 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, Dayton/James M C, OH at 12:00Z on 1990-12-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Dayton/James M C, OH at 12:00Z on 1990-12-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
97 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDAY 311356
FFWDAY
OHC003-011-021-023-037-057-065-091-107-109-113-135-149-161-311900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE DAYTON OH
855 AM EST MON DEC 31 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SMALL STREAM
FLOOD WARNING EFFECTIVE UNTIL 200 PM EST FOR PEOPLE IN
THE FOLLOWING COUNTIES

   IN THE STATE OF OHIO
      ALLEN...AUGLAIZE...CHAMPAIGN...CLARK...DARKE...GREENE...
      HARDIN...LOGAN...MERCER...MIAMI...MONTGOMERY...PREBLE...
      SHELBY...VAN WERT

AT 845 AM EST...NEARLY ALL SMALL STREAMS WERE STILL FLOODED
ACROSS WESTERN OHIO.  SHERIFFS DEPARTMENTS REPORTED MANY ROAD
CLOSINGS IN EVERY COUNTY IN THE WARNING AREA.

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.

THIS WARNING IS A CONTINUATION OF THE PREVIOUS SMALL STREAM FLOOD
WARNING ISSUED.

LINDSEY

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, Dec 31, 4:39 AM EST, 4 hours 16 minutes before
OHZ006-007-009-011-311300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  COLUMBUS OH
438 AM EST MON DEC 31 1990

SLICK ROAD CONDITIONS ARE POSSIBLE ACROSS CENTRAL OHIO EARLY THIS
MORNING.

AT 430 AM NATIONAL WEATHER SERVICE RADAR INDICATED A FEW PATCHES OF
LIGHT SNOW AND LIGHT FREEZING RAIN ACROSS CENTRAL OHIO.  A MIXTURE
OF LIGHT SNOW AND LIGHT FREEZING RAIN WAS FALLING AT PORT COLUMBUS
INTERNATIONAL AIRPORT AT 430 AM.

TEMPERATURES HAVE NOW FALLEN WELL BELOW FREEZING ACROSS MOST OF THE
AREA AND WILL CONTINUE TO FALL THROUGH THE EARLY MORNING HOURS.
ANY WATER REMAINING ON ROADS FROM THE RAINFALL YESTERDAY WILL BEGIN
TO FREEZE CREATING ICY SPOTS ON STREETS AND HIGHWAYS.

LIGHT SNOW OR FLURRIES...AND A FEW PATCHES OF LIGHT FREEZING RAIN OR
DRIZZLE...WILL ADD TO THE HAZARDOUS DRIVING CONDITIONS EARLY THIS
MORNING.  MOTORISTS SHOULD BE EXTREMELY CAUTIOUS AND BE ALERT FOR
PATCHES OF ICE...ESPECIALLY ON BRIDGES AND OVERPASSES...IiNTO THE
MORNING RUSH HOUR.

THE LIGHT PRECIPITATION WILL END LATER THIS MORNING.  NO SIGNIFICANT
ACCUMULATION OF SNOW IS EXPECTED.

GERARD
Special weather statement, Dec 31, 5:46 AM EST, 3 hours 9 minutes before
OHZ006-007-009-011-311400-

SPECIAL WEATHER STATEMENT AND FLOOD STATEMENT
NATIONAL WEATHER SERVICE  COLUMBUS OH
545 AM EST MON DEC 31 1990

THE SMALL STREAM AND URBAN FLOOD WARNING FOR ALL THE COUNTIES OF
CENTRAL OHIO AND HOCKING AND VINTON COUNTIES IN SOUTH CENTRAL OHIO
AND ATHENS AND MORGAN COUNTIES IN SOUTHEAST OHIO IS NO LONGER IN
EFFECT.

REPORTS FROM AROUND THE REGION THIS MORNING INDICATED THAT MOST
SMALL STREAMS ARE RECEDING.  MOST STREAMS ARE NOW WITHIN THEIR
BANKS AND THOSE THAT ARE NOT SHOULD CONTINUE TO RECEDE TODAY.

ALTHOUGH THE SMALL STREAMS ARE RECEDING...MANY ROADS WERE STILL
IMPASSABLE DUE TO HIGH WATER.  MOTORISTS SHOULD BE ALERT FOR
WATER ON ROADWAYS TODAY.  DO NOT ATTEMPT TO CROSS WATER COVERED
ROADS.  ALSO...SOME MAJOR RIVERS ACROSS THE AREA WERE STILL IN FLOOD.

ANOTHER DEVELOPING PROBLEM THIS MORNING WAS A MIXTURE OF SNOW AND
FREEZING RAIN.  AT 540 AM NATIONAL WEATHER SERVICE RADAR INDICATED
THAT AN AREA OF SNOW...POSSIBLY MIXED WITH FREEZING RAIN...CONTINUED
TO DEVELOP ACROSS CENTRAL OHIO.  THIS AREA OF PRECIPITATION WAS OVER
UNION...DELAWARE...AND FRANKLIN COUNTIES AND WAS MOVING SOUTHEAST AT
20 MPH.

LAW ENFORCEMENT OFFICIALS HAVE REPORTED THAT MANY ROADS THROUGHOUT
CENTRAL OHIO ARE BECOMING ICY...ESPECIALLY IN THE COLUMBUS AREA AND
THE AREA NORTH AND WEST OF COLUMBUS.  SNOW AND POSSIBLY SOME FREEZING
RAIN WILL CONTINUE ACROSS THE AREA THROUGH AT LEAST THE EARLY MORNING
HOURS CAUSING ROAD CONDITIONS TO WORSEN FURTHER.

ALTHOUGH NO SIGNIFICANT ACCUMULATIONS OF ICE OR SNOW ARE EXPECTED...
RUSH HOUR MOTORISTS THIS MORNING SHOULD BE ALERT FOR ICY PATCHES ON
STREETS AND HIGHWAYS...ESPECIALLY ON BRIDGES AND OVERPASSES.  ALLOW
EXTRA TRAVEL TIME.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO OR TELEVISION FOR THE
LATEST WEATHER INFORMATION.

GERARD

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 30, 7:19 PM ESTFlash Flood WarningILNHighland4 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNClark, Greene, Montgomery2 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNAllen, Auglaize, Hardin, Van Wert2 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNChampaign, Logan, Shelby2 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNDarke, Mercer2 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNPreble2 hr
Dec 30, 8:14 PM ESTFlash Flood WarningILNMiami2 hr
Dec 31, 8:55 AM ESTFlash Flood WarningILNAllen, Auglaize, Hardin, Logan5 hr
Dec 31, 8:55 AM ESTFlash Flood WarningILNChampaign, Clark, Miami, Shelby5 hr
Dec 31, 8:55 AM ESTFlash Flood WarningILNMercer, Van Wert5 hr
Dec 31, 8:55 AM ESTFlash Flood WarningILNGreene5 hr

Nearby

Flash Flood Warnings in Ohio, 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.