Ohio, 2011

Flash Flooding and Flooding in Ohio, February 28, 2011

February 28, 2011 · NWS CLE · 28 events in 22 counties and zones

A strong area of low pressure moved northeast across Ohio on February 28th. Heavy rain fell over northern Ohio in association with this low.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
2
Injuries
0
Property damage
$14 million
Crop damage
None recorded
Events
28

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS CLE wrote it up.

A strong area of low pressure moved northeast across Ohio on February 28th. Heavy rain fell over northern Ohio in association with this low. Rainfall totals of between one and three inches were reported. Up to ten inches of heavy snow was one the ground at daybreak on the 27th. Temperatures warmed into the 40s on the 27th and eventually reached the 50s on the 28th. This resulted in a rapid snow melt that released up to another inch of liquid equivalent rainfall. The snow melt and the rain combined to create widespread flooding. Rapid rises in area streams and rivers occurred with near record crests eventually reported at some river locations. Some flash flooding was also reported. A woman was killed near Norwalk after her car was swept off of the road by flood waters. Dozens of water rescues were reported and hundreds of people had to be evacuated from their homes. Dozens of roads had be closed because of flooding and washouts were reported in several counties. Over a thousand homes were damaged by flooding. Damage estimates from northern Ohio topped $30 million for this event.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before the first event at Feb 27, 11:50 PM EST, 2 hours 10 minutes earlier.

Area forecast discussion, Feb 27, 11:50 PM EST, 2 hours 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
1150 PM EST SUN FEB 27 2011

.SYNOPSIS...
LOW PRESSURE SYSTEM FROM OKLAHOMA WILL MOVE QUICKLY ACROSS
NORTHERN OHIO EARLY MONDAY MORNING. A WARM FRONT AHEAD OF THE LOW
WILL PUSH NORTH ACROSS THE AREA OVERNIGHT WITH THE ASSOCIATED COLD
FRONT SWEEPING ACROSS THE AREA MONDAY MORNING. HIGH PRESSURE FROM
THE NORTHERN PLAINS WILL MOVE TO THE OHIO VALLEY BY TUESDAY
MORNING.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
MADE SOME ADJUSTMENTS TO THE GRAPHICS AND THE FORECAST EARLY THIS
EVENING. SOME OF THE MODELS ARE PICKING UP ON THE FACT THAT THE
SURFACE LOW IS TRACKING TOWARD NORTHWEST OHIO. IT APPEARS HEADED
TOWARD THE CENTRAL LAKESHORE BY DAYBREAK. IT IS MOVING QUICKLY...
OVER 50 MPH. THIS PRESENTS SOME MINOR TEMPERATURE PROBLEMS MAINLY
ALONG THE WEST LAKESHORE...WEST OF LORAIN...INCLUDING TOLEDO...
WHERE THE WIND WILL BACK TO THE NORTHEAST OFF THE LAKE. HAVE
ADJUSTED THE TEMPERATURES IN THIS AREA TO TRY AND CAPTURE THE
GRADIENT. ALSO ADJUSTED THE TEMPERATURES UP ELSEWHERE OVERNIGHT AS
THE WARM FRONT LIFTS NORTH. IT IS ALREADY IN THE LOWER AND MID 50S
ACROSS CENTRAL OHIO AND THIS WARM AIR WILL LIFT NORTH.
TEMPERATURES MAY BE SUPPRESSED SOMEWHAT AS THE SHOWERS BREAK
OUT. AS MENTIONED EARLIER... THE 50 TO 70 KNOT LOW LEVEL JET WILL
BE CONDUCIVE FOR SCATTERED THUNDERSTORMS.

THE FIRST ROUNDS OF SHOWERS APPEAR HEADED MAINLY SOUTH AND
NORTHWEST OF THE AREA BUT THE SHOWERS WILL FILL IN OVERNIGHT.
STILL HOPING FOR THE LEAST AMOUNT OF RAIN AS POSSIBLE AS WE WILL
HAVE TO CONTEND WITH THE SNOW MELT QUICKLY GOING INTO THE RIVER
BASINS. ANY HEAVY RAIN WILL QUICKLY PRODUCE PROBLEMS IN POOR
DRAINAGE AREAS AND AREAS WHERE SNOW PILES MIGHT BE BLOCKING
DRAINAGE. WATERWAYS OF ALL SIZES WILL SEE RAPID RISES. THE FLOOD
WATCH REMAINS IN EFFECT.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH WEDNESDAY NIGHT/...
THREAT FOR SEVERE TSRA WILL CONTINUE INTO TOMORROW MORNING.  HPC DAY
2 HAS SLIGHT RISK INTO EXTREME SOUTHERN COUNTIES.

IN ADDITION WITH DEVELOPING RAIN AND CURRENT SNOW PACK...POTENTIAL
FOR FLOODING CONTINUES. CURRENT FORECAST IS FOR APPROXIMATELY AN
INCH OR SO OF RAIN FROM THE SYSTEM.  FLOOD THREAT IS NOT ONLY
SNOW PACK...BUT SATURATED GROUNDS FROM OUR PREVIOUS THAW IN ADDITION
TO RAINFALL FROM THIS UPCOMING SYSTEM.

THE LOW WILL MOVE ACROSS LAKE ONTARIO BY EARLY AFTERNOON DRAGGING
FRONT ACROSS THE FORECAST AREA.  COLD FRONT WILL BE SOUTH OF THE
AREA BY THIS TIME MONDAY. SO EXPECT FALLING TEMPERATURES DURING THE
AFTERNOON. AS A RESULT...RAIN IN THE MORNING WILL CHANGE TO SNOW
TOMORROW AFTERNOON.  DO NOT EXPECT MUCH IN THE WAY OF ACCUMULATION
AS VERY DRY AIR PUSHES IN QUICKLY BEHIND THE FRONT.

RATHER QUIET AFTER THAT THROUGH MID WEEK. MODELS CONTINUE MOVING
LARGE HIGH ACROSS THE AREA ON TUESDAY.  WEAK FRONT SWINGS ACROSS
GREAT LAKES WEDNESDAY...BUT AIR IS SO DRY JUST WENT WITH FLURRIES
OVER NE OH AND NW PA.

&&

.LONG TERM /THURSDAY THROUGH SUNDAY/...
THE LONG TERM FORECAST BEGINS THURSDAY WITH HIGH PRESSURE MOVING
EAST OF THE AREA WITH FAIR WEATHER. THEN CHANCE OF SHOWERS ON FRIDAY
AS A COLD FRONT APPROACHES FROM THE WEST. 12Z GFS RUN IS MORE
PROGRESSIVE IN BRINGING THIS FRONT THROUGH WHILE THE 12Z ECMWF IS
SLOWER. BOTH SHOW LOW MOVING UP ALONG THE FRONT BUT ARE QUITE
DIFFERENT ON TIMING. OVERALL WENT CLOSER TO THE GFS SOLUTION BEING
MORE PROGRESSIVE WITH ITS UPPER LEVELS FEATURES WHERE AS ECMWF
SEEMED TO DEEPEN THE TROUGH IN THE EASTERN STATES TOO MUCH. CHANCE
RAIN SHOWERS SATURDAY THEN DRY SUNDAY WITH THE FRONT BEING OFF TO
THE EAST.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
STORM SYSTEM IS STILL EXPECTED TO MOVE NORTHEAST TOWARD THE AREA.
WARM FRONT TO LIFTING NORTH ACROSS THE AREA AT THIS TIME. THIS
WILL PUT THE ENTIRE AREA IN THE WARM SECTOR OVERNIGHT. THE THREAT
FOR WIND SHEAR IS DIMINISHING WITH TIME AS WARM FRONT MOVES NORTH
OF THE AREA. WILL CONTINUE WITH THE MENTION OF THE WIND SHEAR FOR
NOW.

LOW PRESSURE SYSTEM MOVES NORTHEAST ALONG THE WARM FRONTAL BOUNDARY
ONCE IT BECOMES STATIONARY AND THIS WILL CAUSE WINDS TO INCREASE
EAST OF TOLEDO TO FINDLAY LINE. LOW LEVEL WINDS AT 925 MB REACH 50
KNOTS IN THE LOW LEVEL JET.  SO I AM EXPECTING GUSTY WINDS JUST
AHEAD OF THE COLD FRONT. WINDS DROP OFF AT FRONTAL PASSAGE FOR A FEW
HOURS AND THEN PICK BACK UP DURING THE AFTERNOON TOMORROW.

CB DEVELOPMENT CONTINUES IN THE WARM SECTOR AND CONTINUES TO FILL
IN WITH TIME. MODERATE RAINFALL RATES ALSO LIKELY IN THE
CONVECTION WITH SOME GUSTS TO 30 KNOTS IN THE THUNDERSTORMS.
NOT REAL CONFIDENT NOW THAT PRECIPITATION WILL CHANGE OVER TO SNOW
SO WILL LEAVE IT OUT FOR NOW. PRECIPITATION MAY CUT OFF FAIRLY
QUICKLY AFTER FRONTAL PASSAGE.

OUTLOOK...VFR.

&&

.MARINE...
LAKE REMAINS MOSTLY ICE COVERED.  EXPECT NO HEADLINES THROUGH THE
FORECAST PERIOD.  LIGHT SOUTH TO SOUTHEAST WILL INCREASE TO 15 TO 20
KNOTS OR SO FROM THE SOUTHWEST EARLY MONDAY BEFORE TURNING NORTHWEST
WITH THE PASSAGE OF A COLD FRONT AND INCREASING TO 15 TO 25 KNOTS.
TUESDAY WINDS BACK TO SOUTHWEST AND HIGH PRESSURE SLIDES ACROSS THE
AREA. WEDNESDAY WINDS WILL SHIFT BACK TO THE NORTHWEST AFTER PASSAGE
OF ANOTHER COLD FRONT EARLY IN THE DAY...GRADUALLY TURNING TO THE SE
THURSDAY AS HIGH MOVES EAST AND TO THE SOUTH AND SOUTHWEST FRIDAY AS
ANOTHER LOW PRESSURE AND COLD FRONT APPROACH.

&&

.HYDROLOGY...
LOOK FOR RAIN TO QUICKLY OVERSPREAD THE AREA THIS EVENING.
EMBEDDED THUNDERSTORMS WILL PRODUCE LOCALLY HIGHER RAINFALL
AMOUNTS...BUT IN GENERAL THREE QUARTERS OF AN INCH TO AN INCH AND
A QUARTER OF RAINFALL IS LIKELY. SNOW MELT WILL ALSO CONTRIBUTE TO
ANOTHER INCH OF RUNOFF. THIS WILL LIKELY PRODUCE FAIRLY
WIDESPREAD MINOR FLOODING PROBLEMS TO FLOOD PRONE AREAS. WITH
ELEVATED STREAM LEVELS ALREADY...RIVER/STREAM RISES WILL OCCUR
AND THE AREA WILL BE VULNERABLE TO RIVER FLOODING. THE
SIGNIFICANCE OF THE FLOODING WILL COME DOWN TO THE DETAILS ON
WHERE THE HEAVIEST RAINFALL FALLS AND THE SNOW PACK CONTRIBUTION.
THE FLOOD POTENTIAL IS HIGH AND SOME SIGNIFICANT FLOODING IS
POSSIBLE. IN ADDITION...THUNDERSTORMS MAY POSE A RISK FOR
LOCALIZED RAPID FLOODING. A FLOOD WATCH HAS BEEN ISSUED.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...FLOOD WATCH THROUGH MONDAY EVENING FOR OHZ003-006>014-017>023-
     027>033-036>038-047-089.
PA...FLOOD WATCH THROUGH MONDAY EVENING FOR PAZ001>003.
MARINE...NONE.

&&

SYNOPSIS...KOSARIK
NEAR TERM...KOSARIK
SHORT TERM...DJB
LONG TERM...RANDEL
AVIATION...LOMBARDY
MARINE...RANDEL
HYDROLOGY...
Hazardous weather outlook, Feb 27, 3:43 AM EST, 22 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
343 AM EST SUN FEB 27 2011

OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-281100-
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
ASHTABULA INLAND-HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
343 AM EST SUN FEB 27 2011

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
OHIO...NORTHEAST OHIO...NORTHWEST OHIO AND NORTHWEST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

LEZ061-142>149-162>169-281100-
LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY-
MAUMEE BAY TO RENO BEACH OH-RENO BEACH TO THE ISLANDS OH-
THE ISLANDS TO VERMILION OH-VERMILION TO AVON POINT OH-
AVON POINT TO WILLOWICK OH-WILLOWICK TO GENEVA-ON-THE LAKE OH-GENEVA-
ON-THE-LAKE TO CONNEAUT OH-CONNEAUT OH TO RIPLEY NY-
LAKE ERIE OPEN WATERS FROM MAUMEE BAY TO RENO BEACH-
LAKE ERIE OPEN WATERS FROM RENO BEACH TO THE ISLANDS-
LAKE ERIE OPEN WATERS FROM THE ISLANDS TO VERMILION-
LAKE ERIE OPEN WATERS FROM VERMILION TO AVON POINT-
LAKE ERIE OPEN WATERS FROM AVON POINT TO WILLOWICK-
LAKE ERIE OPEN WATERS FROM WILLOWICK TO GENEVA-ON-THE-LAKE-
LAKE ERIE OPEN WATERS FROM GENEVA-ON-THE-LAKE TO CONNEAUT-
LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY-
343 AM EST SUN FEB 27 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

OUDEMAN

The radar

The Cleveland radar (KCLE), 83 km away, was scanning. The volume nearest the first event began at 07:00 UTC.

Open the radar archive at this moment

Event by event

23 flood, 5 flash flood. Local standard time, as filed.

Flood, Richland

When
February 28, 2:00 AM EST to 11:59 PM EST
Where
Richland County, 1.57 mi SSE of Plymouth to 2.4 mi NE of Adario
Cause
Heavy Rain / Snow Melt
Property damage
$750,000
Reported by
Emergency Manager
Coordinates
40.980, -82.665

Heavy rain and rapid snow melt led to widespread flooding across Richland County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from stranded vehicles. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding, including State Route 13 on the north side of Mansfield and State Route 96 to the north of the city. Officially 2.12 inches of rain was measured at Mansfield Lahm Airport. A spotter near Lucas reported 2.72 inches of rainfall.

Flood, Marion

When
February 28, 2:00 AM EST to 11:59 PM EST
Where
Marion County, Meeker to Caledonia
Cause
Heavy Rain / Snow Melt
Property damage
$750,000
Reported by
Emergency Manager
Coordinates
40.650, -83.300

Heavy rain and rapid snow melt led to widespread flooding across Marion County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from stranded vehicles. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding. Officially 2.78 inches of rain was measured at the Marion Airport.

Flood, Morrow

When
February 28, 2:00 AM EST to 11:59 PM EST
Where
Morrow County, Iberia to Steam Corners
Cause
Heavy Rain / Snow Melt
Property damage
$300,000
Reported by
Emergency Manager
Coordinates
40.670, -82.850

Heavy rain and rapid snow melt led to widespread flooding across Morrow County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from stranded vehicles. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding.

Flood, Knox

When
February 28, 2:00 AM EST to 11:59 PM EST
Where
Knox County, Waterford to Jelloway
Cause
Heavy Rain / Snow Melt
Property damage
$400,000
Reported by
Law Enforcement
Coordinates
40.550, -82.620

Heavy rain and rapid snow melt led to widespread flooding across Knox County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding.

Flood, Holmes

When
February 28, 2:00 AM EST to 11:59 PM EST
Where
Holmes County, Lakeville to Winesburg
Cause
Heavy Rain / Snow Melt
Property damage
$300,000
Reported by
Trained Spotter
Coordinates
40.650, -82.130

Heavy rain and rapid snow melt led to widespread flooding across Holmes County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding. The Killbuck Creek crested at 18.07 feet, the eight highest height on record. South end of Millersburg and western portions of the Killbuck sustained flood damage.

Flood, Ashland

When
February 28, 3:00 AM EST to 11:59 PM EST
Where
Ashland County, 1.51 mi N of Nova to 1.74 mi NE of Albion
Cause
Heavy Rain / Snow Melt
Property damage
$500,000
Reported by
Emergency Manager
Coordinates
41.052, -82.321

Heavy rain and rapid snow melt led to widespread flooding across Ashland County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the the flooding.

Flood, Wayne

When
February 28, 3:00 AM EST to 11:59 PM EST
Where
Wayne County, West Salem to 4 mi W of Doylestown
Cause
Heavy Rain / Snow Melt
Property damage
$500,000
Reported by
Trained Spotter
Coordinates
40.970, -82.100

Heavy rain and rapid snow melt led to widespread flooding across Wayne County. Rainfall totals across the county ranged from one to two inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding. Officially 1.53 inches of rain was measured at the Wooster Airport.

Flood, Lorain

When
February 28, 4:00 AM EST to 11:59 PM EST
Where
Lorain County, Vermilion on the Lk to 4 mi S of Avon Lake
Cause
Heavy Rain / Snow Melt
Property damage
$750,000
Reported by
Law Enforcement
Coordinates
41.420, -82.330

Heavy rain and rapid snow melt led to widespread flooding across Lorain County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from stranded vehicles. At least 100 people were evacuated from around 50 homes in North Ridgeville and Avon Lake. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding. Officially 2.24 inches of rain was measured at the Lorain County Airport.

Flash Flood, Richland

When
February 28, 5:00 AM EST to 10:00 AM EST
Where
Richland County, 18 mi NE of Bellville to 10 mi NNW of Alta
Cause
Heavy Rain / Snow Melt
Property damage
$2.0 million
Reported by
County Official
Coordinates
40.804, -82.277

Much of Bellville was closed part of the day as water flooded the village's east side. Water surrounded the elementary school and covered the township garage as the Clear Fork rose out of banks. Around 60 water rescues were reported in the Mansfield area. Water damaged commercial businesses around 5th and Main Streets. The main Post Office in Mansfield was flooded.

Flash Flood, Crawford

When
February 28, 5:00 AM EST to 8:00 AM EST
Where
Crawford County, 15 mi NW of Galion to 5 mi WSW of Galion
Cause
Heavy Rain / Snow Melt
Reported by
County Official
Coordinates
40.883, -82.983

Heavy rain and rapid snow melt led to a rapid rise in the Sandusky River at Bucyrus, which reached a 100 year crest of 10.86 feet. The only official rainfall observation was in Galion where 2.38 was reported. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from homes and vehicles as the water came up. About 30 homes in Bucyrus were flooded as the Sandusky River came out of banks. Countyline Road was one of the most affected areas where at least a dozen homes were damaged. Several dozen new cars were destroyed as flood waters inundated a car dealership. Several homes flooded as well in Galion.

Flood, Hancock

When
February 28, 5:00 AM EST to 11:00 PM EST
Where
Hancock County, 10 mi NW of Findlay to 10 mi SW of Findlay
Cause
Heavy Rain / Snow Melt
Property damage
$1.2 million
Reported by
Newspaper
Coordinates
41.132, -83.786

Heavy rain and rapid snow melt led to widespread flooding across Hancock County. Rainfall totals across the county ranged from one to three inches on February 27th and 28th. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from stranded vehicles. Hundreds of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding, mainly in downtown Findlay. The Blanchard River reached 16.42 feet,the 6th highest crest of record. Both the Lye and Eagle Creeks reached major flood stages as well. Officially Mt. Blanchard observed 2.32 inches of rain, with Findlay reporting 2.08 inches.

Flood, Crawford

When
February 28, 5:00 AM EST to 6:00 PM EST
Where
Crawford County, 7 mi NW of Bucyrus to 7 mi NE of Bucyrus
Cause
Heavy Rain / Snow Melt
Property damage
$1.5 million
Reported by
Newspaper
Coordinates
40.872, -83.075

Heavy rain and rapid snow melt led to a rapid rise in the Sandusky River at Bucyrus, which reached a 100 year crest of 10.86 feet. The only official rainfall observation was in Galion where 2.38 was reported. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from homes and vehicles as the water came up. About 30 homes in Bucyrus were flooded as the Sandusky River came out of banks. Countyline Road was one of the most affected areas where at least a dozen homes were damaged. Several dozen new cars were destroyed as flood waters inundated a car dealership.

Flash Flood, Huron

When
February 28, 5:50 AM EST to 12:00 PM EST
Where
Huron County, 3 mi NW of Norwalk to 4 mi W of Norwalk
Cause
Heavy Rain / Snow Melt
Deaths
1 direct, 0 indirect
Reported by
County Official
Coordinates
41.261, -82.661

A motorist on South Norwalk Road entered flooded waters of a tributary of the Huron River, Cole Creek, in the town of Norwalk. The car was washed into the creek where the driver was killed. Witness report water depths of 2 to 3 feet over the bridge at time of incident.

Flood, Medina

When
February 28, 6:00 AM EST to 8:00 PM EST
Where
Medina County, 8.48 mi W of Spencer to 0.63 mi WNW of Erhart
Cause
Heavy Rain / Snow Melt
Property damage
$100,000
Reported by
Emergency Manager
Coordinates
41.088, -82.282

Heavy rain and rapid snow melt led to a rapid runoff and road flooding across Medina County Rainfall observation show 2-2.5 fell during the early morning hours of February 28th. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from vehicles as the water came up. Some of the roads that were flooded were mainly in the cities of Medina and Wadsworth.

Flood, Summit

When
February 28, 6:00 AM EST to 4:00 PM EST
Where
Summit County, 2.29 mi N of Twinsburg to 2.05 mi W of Ellet
Cause
Heavy Rain / Snow Melt
Deaths
0 direct, 1 indirect
Property damage
$300,000
Reported by
County Official
Coordinates
41.353, -81.432

Heavy rain and rapid snow melt led to a rapid rise in the Cuyahoga River in Summit County which reached moderate flood stage at Old Portage. One to two inches of rainfall fell during the overnight hours of the 27th into the 28th, and combined with six to ten inches of heavy snow was on the ground resulted in rapid runoff. Several people had be rescued from homes and vehicles as the water came up. One rescue worker suffered hypothermia rescuing a motorists floating away in flood waters in Northfield Center.

Flash Flood, Seneca

When
February 28, 7:00 AM EST to 10:00 AM EST
Where
Seneca County, 7 mi W of Tiffin to 10 mi N of Tiffin
Cause
Heavy Rain / Snow Melt
Property damage
$1.5 million
Reported by
Newspaper
Coordinates
41.100, -83.304

Portions of the Heidelberg University campus in Tiffin and the local YMCA were flooded as Rock Creek came out of it's banks. Waist deep water was reported in the Clinton Mobile Home park. The Riverbend Apartments experienced flooding in the lower-level apartments. At least 30 vehicles were damaged by flooding on the Heidelberg campus. Two drivers were rescued from submerged vehicles on county road 16 in Bloomville. One rescue occurred at US 224 just east of county road 17. Additional water rescues occurred at SR 19, CR 16, and TR 218.

Flood, Cuyahoga

When
February 28, 7:00 AM EST to 8:00 PM EST
Where
Cuyahoga County, 4 mi WSW of North Royalton to 5 mi ESE of North Royalton
Cause
Heavy Rain / Snow Melt
Property damage
$700,000
Reported by
Emergency Manager
Coordinates
41.298, -81.801

Heavy rain and rapid snow melt led to widespread flooding across Cuyahoga County. Rainfall totals across the county averaged 2 inches. Up to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Dozens of homes in the county sustained damage, mainly from basement flooding. Many roads had to be closed because of the flooding. Several schools in North Royalton received considerable damage.

Flood, Hancock

When
February 28, 7:00 AM EST to 9:00 PM EST
Where
Hancock County, 10 mi WSW of Mt Cory to 10 mi WNW of Mt Cory
Cause
Heavy Rain / Snow Melt
Property damage
$100,000
Reported by
Newspaper
Coordinates
40.875, -83.997

Heavy rain and rapid snow melt led to a rapid rise in the Riley Creek at Bluffton in southern Hancock County. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Rainfall totals averaged 1 to 2 inches during the early morning hours of the 28th. Several people had to be evacuated from their homes as the creek came out of banks by noon. Several businesses and homes were flooded, including the local schools.

Flood, Lake

When
February 28, 7:00 AM EST to 11:00 PM EST
Where
Lake County, 2.3 mi WSW of Fairport Harbor to 3.78 mi NW of Redbird
Cause
Heavy Rain / Snow Melt
Property damage
$200,000
Reported by
Emergency Manager
Coordinates
41.742, -81.313

Heavy rain and rapid snow melt led to a rapid rise in the Grand River at Painesville, which reached moderate flood stage with a crest of 13.29 feet. Rainfall reports across the basin ranged from 1.6 to 2.2 which fell mainly during the early morning hours of February 28th. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Over 100 homes in and around Painesville had to be evacuated because of the rising flood waters. In Fairport Harbor several homes near the Grand River had flooded basements. Numerous roads across the county were flooded.

Flood, Stark

When
February 28, 7:00 AM EST to 11:00 PM EST
Where
Stark County, 0.64 mi NNE of Canal Fulton to 2.57 mi S of Wilmot
Cause
Heavy Rain / Snow Melt
Property damage
$300,000
Reported by
Fire Department/Rescue
Coordinates
40.889, -81.596

Heavy rain and rapid snow melt led to a rapid rise in the Tuscarawas River and the Nimishillen Creek. The Nimishillen Creek reached a 100 year flood stage and it's second highest crest on record of 12.96 feet. Rainfall observations across the county ranged from 1.5-2 which fell mainly during the morning of the 28th. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Reports that 40 to 50 people people had be rescued from homes and vehicles as the water came up.

Flood, Mahoning

When
February 28, 7:00 AM EST to 11:00 PM EST
Where
Mahoning County, 2.08 mi ESE of Scienceville to 1.69 mi WNW of Campbell
Cause
Heavy Rain / Snow Melt
Property damage
$200,000
Reported by
County Official
Coordinates
41.105, -80.535

Heavy rain and rapid snow melt led to a widspread flooding across portions of Mahoning County. Rainfall reports in the county ranged from 1.5 to 1.75. Around six inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several residents had to be rescued or evacuated primarily in the Poland and and Hubbard areas. Numerous homes received flooded basements.

Flood, Huron

When
February 28, 8:00 AM EST to 11:00 PM EST
Where
Huron County, 15 mi NE of Steuben to 12 mi N of Steuben
Cause
Heavy Rain / Snow Melt
Property damage
$750,000
Reported by
Newspaper
Coordinates
41.254, -82.476

More than 127 sites on Huron County roads needed repairs after flood waters caused erosion damage. Along with severe roadside erosion, many culverts and small bridges were washed out from the flooding.

Flash Flood, Richland

When
February 28, 8:00 AM EST to 8:00 PM EST
Where
Richland County, 2 mi NW of Lexington to 2 mi SW of Lexington
Cause
Heavy Rain / Snow Melt
Property damage
$250,000
Reported by
Newspaper
Coordinates
40.691, -82.607

Heavy rain and rapid snow melt led to a rapid rise in the Clear Fork at Lexington. Six to ten inches of heavy snow was on the ground at the onset of the rain which measured between 1.5-2. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several homes and businesses were impacted by the flood waters which climbed quickly, with reports of water levels 4 feet high on the first floor of a church on Lexington Avenue.

Flood, Wood

When
February 28, 8:00 AM EST to 11:00 PM EST
Where
Wood County, 1.31 mi NE of Grand Rapids to 0.99 mi E of Grand Rapids
Cause
Heavy Rain / Snow Melt
Property damage
$10,000
Reported by
Emergency Manager
Coordinates
41.414, -83.853

Heavy rain and rapid snow melt led to a flooding over Grand Rapids in Wood County. Around two inches of rainfall fell on six inches of heavy snow was on the ground. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Small streams and creeks overran their banks, flooding low lying portions of Grand Rapids. Backup in the town storm water and sewer systems were reported to have caused some of the flooding issued as well. The only property damage reported was minor basement flooding.

Flood, Trumbull

When
February 28, 8:00 AM EST to 11:00 PM EST
Where
Trumbull County, 1.36 mi SW of Phalanx to 0.8 mi NE of Newton Falls
Cause
Heavy Rain / Snow Melt
Property damage
$600,000
Reported by
Official NWS Observations
Coordinates
41.254, -80.995

Heavy rain and rapid snow melt led to a rapid rise in the Mahoning River in Trumbull County. Official river forecast points of Leavittsburg and Warren obseved moderate flooding, while a small tributary Eagle Creek at Braceveille saw major flooding. Heavy rainfall and around six inches of heavy snowmelt lead to the river rise. Several people had be rescued from homes and vehicles as the water came up.

Flood, Ashtabula

When
February 28, 8:00 AM EST to 6:00 PM EST
Where
Ashtabula County, 1.22 mi W of Conneaut to 1 mi NW of Geneva Woerner Arpt
Cause
Heavy Rain / Snow Melt
Property damage
$300,000
Reported by
Public
Coordinates
41.951, -80.574

Heavy rain and rapid snow melt led to a rapid rise in rivers and streams across Ashtabula County. Rainfall amounts of 2 to 2.25 fell on top of six to ten inches of heavy snow. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Small streams and creeks came out of banks flooding farmland, roads, and a few homes.

Flood, Sandusky

When
February 28, 9:00 AM EST to 11:00 PM EST
Where
Sandusky County, 1.26 mi SSE of Ballville to 2.81 mi NNW of Fremont Progress Arp
Cause
Heavy Rain / Snow Melt
Property damage
$50,000
Reported by
Department of Highways
Coordinates
41.314, -83.118

Heavy rain and rapid snow melt led to a rapid runoff and flooded roads across Sandusky County. An average of two inches of rainfall fell on top of six to ten inches of heavy snow was on the ground. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from vehicles as the water came up. Some homes south and north of Fremont experienced basement flooding. Roads that were closed because of flooding from rivers and creeks include OH 19 between Fremont and Oak Harbor, OH 105, US 23, OH 5282. Local roads included South River Road, Haynes Street, and Fulton Streets.

Flood, Cuyahoga

When
February 28, 10:12 AM EST to 12:00 PM EST
Where
Cuyahoga County, 0.69 mi SSE of Gates Mills to 1.9 mi SW of Gates Mills
Cause
Dam / Levee Break
Reported by
County Official
Coordinates
41.511, -81.395

Heavy rainfall and rapid snow melt on the morning of Februar 28th resulted in a the Gates Mill dam failing. This low head dam was located along the Chagrin River in the town of Gates Mill. The released flood waters caused no additional damage from the ongoing flooding downstream on the Chagrin, which was already at moderate flood levels.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Flash Flood, Huron2011-02-2851FemaleVehicle/Towed TrailerDirect
Flood, Summit2011-02-28MaleIn WaterIndirect

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Ohio in 2011Every state in 2011This day in weather historyWarnings in Ohio, February 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 286655, 286657, 286659, 286666, 286667, 286656, 286668, 286828, 282083, 282086, 286966, 286974, 282079, 287016, 287046, 282087, 286968, 286983, 286990, 286992, 287003, 282125, 286975, 286985, 287005, 287051, 287014, 286989.