Heavy Snow in Ohio, February 6, 2007

Name: Heavy Snow in Ohio, February 6, 2007
Start: 2007-02-06T13:00
End: 2007-02-06T23:00
Location: Ohio

February 6, 2007 · NWS ILN · 21 events in 21 counties and zones

A clipper system tracked northwest to southeast through the Ohio Valley and brought a quarter to a third of an inch of precipitation. Cold air in place over the region allowed for significant snow accumulation due to a high snow to water ratio.

Where it happened

Every event with a place to put it; 21 filed by county or forecast zone are drawn at its center, in a lighter ring. 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: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 21

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 ILN wrote it up.

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 Wilmington, OH wrote its last area forecast discussion before the first event at Feb 6, 12:43 PM EST, 17 minutes earlier.

Area forecast discussion, Feb 6, 12:43 PM EST, 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
1243 PM EST TUE FEB 6 2007

.AVIATION /18Z-18Z/...
AVIATORS WILL ENCOUNTER SNOW FOR THE FIRST HALF OF THE FORECAST.
VISIBILITIES WILL BE AS LOW AS LIFR. IFR CEILINGS WILL BE COMMON.
IMPROVEMENT WILL OCCUR AFTER 05Z WHEN THE ALBERTA CLIPPER THAT IS
AFFECTING THE REGION PULLS EAST.
&&

.SHORT TERM /THIS AFTERNOON/...
RADAR AND OBS INDCG SNOW BEGINNING TO OVERSPREAD WESTERN FCST AREA
ATTM. GLANCE AT UPSTREAM OBS OVER INDIANA/ILLINOIS INDCG HEAVY
SNOW IN A SWATH ACRS CNTRL ILLINOIS INTO CNTRL/SO CNTRL INDIANA.
SNOW IS ARRIVING A LITTLE BIT FASTER THAN 12Z GFS/NAM INDCG...AND
ALSO A BIT FURTHER NORTH THAN 12Z MODELS PROGGED. 15Z RUC AND SREF
INDCG HEAVIEST SWATH OF SNOW MAY END UP FALLING IN BROAD SWATH OVER
CINCY METRO FROM NRN KY COUNTIES NORTH INTO BUTLER/WARREN/CLINTON
CORRIDOR. HAVE EXPANDED HVY SNOW WARNING NORTH TO ENCOMPASS
ANOTHER TIER OF COUNTIES...FROM DAYTON TO CHILLICOTHE. TEMPS
REMAIN ANYWHERE FROM 9 DEG INTO LWR TEENS ACRS MUCH OF THIS
AREA...SO EVEN THOUGH HIGHEST QPF VALUES WILL LIKELY BE SOUTH OF
HERE...COULD BE DEALING WITH 30 TO 1 SNOW TO LIQUID RATIOS IN THIS
AREA. FURTHER SOUTH...HAVE ALSO CHOSEN TO RAISE SNOWFALL AMOUNTS
ACRS TRI STATE AREA AND INTO SOUTH CNTRL OH/NE KY WHERE 15 OR 20
TO 1 SNOW/LIQUID RATIOS SHOULD BE REALIZED FOR DURATION OF EVENT.
NOW INDCG STORM TOTAL ACCUMS OF 4 TO 7 INCHES THRU THIS
AREA...WITH OUTSIDE POSSIBILITY AT ISOLD HIGHER AMTS APPCHG 8
INCHES.

SNOWFALL RATES OF 1-2 INCHES PER HOUR CAN BE EXPECTED LATER THIS
AFTN...WITH ROAD CONDITIONS EXPECTED TO DETERIORATE RAPIDLY OVER
THE NEXT FEW HOURS.

NEW WARNING PRODUCT AND ZONE FCST ALREADY OUT. PREV DISCUSSION
FOLLOWS.

RYAN

&&

.PREV DISCUSSION...
/ISSUED 1040 AM EST TUE FEB 6 2007/

SHORT TERM /TODAY/...
WITH SNOW ON THE WAY...AND MODELS IN GOOD AGREEMENT...NO FORECAST
UPDATE IS NEEDED AT THIS TIME. SINCE WIND CHILLS HAVE RISEN ABOVE
-10...WILL CANCEL ADVISORY AND UPDATE ZONES TO DROP WIND CHILL
HEADLINES.

AVIATION /12Z-12Z/...
CLIPPER FEATURE QUICKLY MOVING INTO MID/UPR MISSISSIPPI VLY THIS
MORNING W/ WIDESPREAD MID/HIGH CLOUDS OVERSPREADING OH VLY. -SN
CURRENTLY ENTERING WRN IL AND IS TIMED INTO WRN TAF SITES BETWEEN
15Z AND 18Z. BULK OF PRECIP LOOKS TO BE OH RIVER SOUTH...SO HIT
CVG/LUK WITH LOWEST VSBYS AND CIGS. OBS UPSTREAM SHOW GENERALLY
IFR W/ OCCL LIFR IN HEAVIER SNOW BANDS...AND EXPECT SIMILAR
CONDITIONS WHEN ACTIVITY MOVES INTO OH VLY. KCMH/KLCK MAY BE FAR
ENOUGH N TO AVOID HEAVIEST PRECIP SO DID NOT GO BELOW IFR VSBYS
OR CIGS THERE. BEST FORCING IS TIMED FOR 21Z- 02Z...WITH PRECIP
TAPERING OFF BY 06Z. MODELS SHOW LL MOISTURE LINGERING BEHIND
PRECIP SO KEPT MVFR CIGS THRU 12Z.

HAWBLITZEL

PREV DISCUSSION...
 /ISSUED 300 AM EST TUE FEB 6 2007/

SHORT TERM /TODAY THROUGH THURSDAY/...
GFS AND NAM CONTINUING TO SHOW GOOD RUN TO RUN CONTINUITY WITH TRACK
OF CLIPPER SYSTEM FOR THIS AFTERNOON AND THIS EVENING. THE NAM HAS
SPED UP SOME AND IS NOW A LITTLE MORE IN LINE WITH THE FASTER GFS
AND WILL CONTINUE TO TREND THE FORECAST TOWARD THIS FASTER SOLUTION.
IT STILL LOOKS LIKE A 6 TO POSSIBLY 9 HOUR PERIOD OF PRETTY GOOD
ISENTROPIC LIFT WITH THIS SYSTEM. AVERAGE MIXING RATIOS DURING
THE PERIOD RANGE FROM 1.8 ACROSS OUR NORTH TO 3.4 FOR OUR FAR
SOUTHWEST. USING A MODIFIED GARCIA TECHNIQUE YIELDS MAX SNOW AMOUNTS
OF ABOUT 2.5 IN THE FAR NORTH TO ABOUT 5.5 INCHES IN THE SOUTH. IN
ADDITION...BOTH THE NAM AND GFS ARE SHOWING A LITTLE BETTER QPFS
THIS RUN WITH EACH INDICATING SOME AREAS OF 0.5 INCH LIQUID ACROSS
OUR SOUTH.

WILD CARD REMAINS THE LIQUID TO SNOW RATIO THAT WE WILL END UP BEING
ABLE TO ACHIEVE. USING A 20 TO 1 RATIO FOR TEMPS IN THE 10 TO 20
DEGREE RANGE AND A 15 TO 1 RATIO FOR 20 TO 28 DEGREES...YIELD SOME
PRETTY HIGH SNOWFALL TOTALS FOR PARTS OF OUR SOUTH (IN EXCESS OF 7
INCHES). GIVEN THE SPEED OF THE SYSTEM...WILL NOT GO THAT HIGH BUT
WE WILL NUDGE UP TO A STORM TOTAL OF 4 TO 6 INCHES FOR AREAS ALONG
AND SOUTH OF THE OHIO RIVER. WILL KEEP 3 TO 5 INCHES GOING FOR THE
REMAINDER OF THE WARNING AREA. ELSEWHERE...WILL HAVE A TIER OR TWO
OF COUNTIES BORDERING THE WARNING AT 2 TO 4 INCHES WITH 1 TO 3
INCHES ACROSS THE FAR NORTH.

ONLY CHANGES PLANNED TO THE HEADLINES WILL BE TO MOVE THE START TIME
OF THE SNOW ADVISORY AND THE HEAVY SNOW WARNING FOR THE SOUTHEAST UP
TO 1 PM.

SYSTEM PULLS OUT QUICKLY THIS EVENING AND WOULD NOT BE SURPRISED IF
SNOW IS PRETTY MUCH OVER BY ABOUT MIDNIGHT. ELONGATED SURFACE HIGH
WILL THEN BUILD DOWN INTO THE AREA...KEEPING COLD TEMPERATURES IN
PLACE THROUGH THE REST OF THE SHORT TERM. A WEAK VORT PASSES QUICKLY
TO OUR SOUTH WEDNESDAY NIGHT INTO THURSDAY MORNING AND THIS MAY BE
ENOUGH TO PRODUCE A FEW FLURRIES ACROSS OUR FAR SOUTH.

WINDS SHOULD REMAIN FAIRLY LIGHT THROUGH THIS MORNING SO WIND CHILLS
SHOULD NOT BE THAT MUCH OF A FACTOR. HOWEVER...GIVEN VERY COLD TEMPS
IN PLACE CURRENTLY...WILL GO AHEAD AND JUST KEEP THE WIND CHILL
ADVISORY UP FOR THE NORTH THROUGH THIS MORNING.

PREV DISCUSSION...
 /ISSUED 441 PM EST MON FEB 5 2007/

LONG TERM /THURSDAY THROUGH MONDAY/
NRN STREAM REMAINS DOMINANT FOR MUCH OF THE PERIOD...WITH ERN US
TROF REMAINING IN PLACE. PERIOD BEGINS WITH THE REGION ON THE
EXTREME SERN EDGE OF HIGH PRESSURE WHICH IS CENTERED OVER S CNTRL
CANADA INTO THE NRN PLAINS.

STRONG H5 S/W DROPS THRU THE LAKES FRI WITH AN A REINFORCING SHORT
OF COLD AIR...AS H8 TEMPS DROP TO -20C.  THIS SHOULD KICK OFF LAKE
EFFECT SHSN FRI AFTN INTO FRI EVE. SCT SHSN WILL LINGER INTO SAT AS
CENTER OF HIGH REMAINS OVER THE NRN PLAINS.

AS HIGH SLIDES EAST SAT NGT INTO SUN...THE SHSN WILL END AND HIGH
PRESSURE WILL DOMINATE THE WEATHER.

BY EARLY NEXT WEEK...THE CENTER OF THE HIGH WILL BE ALONG THE EAST
COAST AND A SRLY FLOW WILL BRING UP TEMPS A LITTLE.

GENERALLY KEPT TEMPS WELL BELOW NORMAL INTO THE WEEKEND...WITH A
GRADUAL WARM UP TOWARDS MONDAY.

SITES

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...HEAVY SNOW WARNING UNTIL 1 AM EST WEDNESDAY FOR OHZ060-061-070-
     071-077-078.

     SNOW ADVISORY UNTIL 7 AM EST WEDNESDAY FOR OHZ026-034-035-
     042>046-051>056-064-065-074.

     HEAVY SNOW WARNING UNTIL 7 AM EST WEDNESDAY FOR OHZ062-063-072-
     073-079>082-088.

KY...HEAVY SNOW WARNING UNTIL 1 AM EST WEDNESDAY FOR KYZ089>096.

     HEAVY SNOW WARNING UNTIL 7 AM EST WEDNESDAY FOR KYZ097>100.

IN...HEAVY SNOW WARNING UNTIL 1 AM EST WEDNESDAY FOR INZ050-058-059-
     066-073>075-080.

&&

Hazardous weather outlook, Feb 6, 4:51 AM EST, 8 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
451 AM EST TUE FEB 6 2007

OHZ026-034-035-042>046-051>056-061>065-073-074-071000-
HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-
CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING-MONTGOMERY-GREENE-
FAYETTE OH-PICKAWAY-FAIRFIELD-ROSS-HOCKING-
451 AM EST TUE FEB 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL OHIO...
MIAMI VALLEY OF OHIO AND WEST CENTRAL OHIO.

.DAY ONE...TODAY AND TONIGHT

DANGEROUSLY LOW WIND CHILL VALUES OF 10 TO 20 BELOW ZERO CAN BE
EXPECTED THIS MORNING.

SNOW WILL DEVELOP ACROSS THE AREA LATE THIS MORNING AND EARLY THIS
AFTERNOON. THE SNOW WILL THEN CONTINUE INTO THIS EVENING. STORM TOTAL
ACCUMULATIONS OF 2 TO 4 INCHES CAN BE EXPECTED BY MIDNIGHT ALONG AND
SOUTH OF A LINE FROM GREENVILLE TO LONDON TO LOGAN. TO THE NORTH OF
THIS LINE...STORM TOTAL ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD CALL IN SNOW AMOUNTS.

INZ050-058-059-066-OHZ060-070>072-071000-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-PREBLE-BUTLER-WARREN-
CLINTON-
451 AM EST TUE FEB 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...MIAMI VALLEY OF OHIO AND SOUTHWEST
OHIO.

.DAY ONE...TODAY AND TONIGHT

DANGEROUSLY LOW WIND CHILL VALUES OF 10 TO 20 BELOW ZERO CAN BE
EXPECTED THIS MORNING.

SNOW WILL DEVELOP ACROSS THE AREA LATE THIS MORNING AND EARLY THIS
AFTERNOON. THE SNOW WILL THEN CONTINUE INTO THIS EVENING. STORM TOTAL
ACCUMULATIONS OF 3 TO 5 INCHES CAN BE EXPECTED BY MIDNIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD CALL IN SNOW AMOUNTS.

INZ073>075-080-KYZ089>100-OHZ077>082-088-071000-
RIPLEY-DEARBORN-OHIO-SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-
CAMPBELL-OWEN-GRANT-PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-
HAMILTON-CLERMONT-BROWN-HIGHLAND-ADAMS-PIKE-SCIOTO-
451 AM EST TUE FEB 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...SOUTH CENTRAL
OHIO AND SOUTHWEST OHIO.

.DAY ONE...TODAY AND TONIGHT

SNOW WILL DEVELOP ACROSS THE AREA LATE THIS MORNING AND EARLY THIS
AFTERNOON. THE SNOW WILL THEN CONTINUE INTO THIS EVENING. STORM TOTAL
ACCUMULATIONS OF 4 TO 6 INCHES CAN BE EXPECTED BY MIDNIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD CALL IN SNOW AMOUNTS.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

21 heavy snow. Local standard time, as filed.

Heavy Snow, Adams

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Adams forecast zone
Reported by: Unknown
Coordinates: 38.846, -83.472 (the zone’s center; the record gives no point)

An estimated 5.5 inches of snow fell over the county.

Heavy Snow, Brown

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Brown forecast zone
Reported by: Department of Highways
Coordinates: 38.934, -83.867 (the zone’s center; the record gives no point)

Three and a half inches of snow was measured in Georgetown.

Heavy Snow, Butler

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Butler forecast zone
Reported by: Trained Spotter
Coordinates: 39.439, -84.576 (the zone’s center; the record gives no point)

Seven inches of snow was reported in Trenton. Six and a half inches was reported near Oxford and 5 inches was reported in both Fairfield and Monroe.

Heavy Snow, Clermont

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Clermont forecast zone
Reported by: Trained Spotter
Coordinates: 39.047, -84.152 (the zone’s center; the record gives no point)

Three and a half inches of snow was recorded in Batavia.

Heavy Snow, Clinton

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Clinton forecast zone
Reported by: Official NWS Observations
Coordinates: 39.415, -83.808 (the zone’s center; the record gives no point)

Six inches of snow was measured at the NWS office in Wilmington.

Heavy Snow, Darke

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Darke forecast zone
Reported by: Department of Highways
Coordinates: 40.133, -84.619 (the zone’s center; the record gives no point)

Four inches of snow was reported in Greenville.

Heavy Snow, Fayette

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Fayette forecast zone
Reported by: Department of Highways
Coordinates: 39.560, -83.456 (the zone’s center; the record gives no point)

Four inches of snow was reported at Washington Court House.

Heavy Snow, Franklin

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Franklin forecast zone
Reported by: Trained Spotter
Coordinates: 39.970, -83.009 (the zone’s center; the record gives no point)

Four and a half inches of snow was reported in Reynoldsburg. Three and a half inches of snow was measured at the Columbus international airport.

Heavy Snow, Hamilton

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Hamilton forecast zone
Reported by: Trained Spotter
Coordinates: 39.196, -84.543 (the zone’s center; the record gives no point)

Forest Park measured 6.8 inches of snow. Six inches fell in Sharonville with 5 inches falling in White Oak.

Heavy Snow, Greene

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Greene forecast zone
Reported by: Trained Spotter
Coordinates: 39.692, -83.890 (the zone’s center; the record gives no point)

Five inches of snow was reported in Beavercreek and at the county garage in Xenia.

Heavy Snow, Highland

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Highland forecast zone
Reported by: Trained Spotter
Coordinates: 39.185, -83.601 (the zone’s center; the record gives no point)

Four and a half inches of snow was reported at Sinking Spring and at the county garage in Hillsboro.

Heavy Snow, Montgomery

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Montgomery forecast zone
Reported by: Trained Spotter
Coordinates: 39.755, -84.291 (the zone’s center; the record gives no point)

Five and a half inches of snow was reported in Miamisburg.

Heavy Snow, Clark

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Clark forecast zone
Reported by: Newspaper
Coordinates: 39.917, -83.784 (the zone’s center; the record gives no point)

Four inches of snow was reported in Springfield.

Heavy Snow, Pickaway

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Pickaway forecast zone
Reported by: Department of Highways
Coordinates: 39.642, -83.024 (the zone’s center; the record gives no point)

Four inches of snow was reported at the county garage in Circleville.

Heavy Snow, Miami

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Miami forecast zone
Reported by: Trained Spotter
Coordinates: 40.053, -84.229 (the zone’s center; the record gives no point)

Four inches of snow was reported in both Piqua and Troy.

Heavy Snow, Pike

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Pike forecast zone
Reported by: Department of Highways
Coordinates: 39.077, -83.067 (the zone’s center; the record gives no point)

Five and a half inches of snow was reported by the county garage in Piketon.

Heavy Snow, Preble

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Preble forecast zone
Reported by: Trained Spotter
Coordinates: 39.742, -84.648 (the zone’s center; the record gives no point)

In Eaton, 5.3 inches of snow was measured.

Heavy Snow, Ross

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Ross forecast zone
Reported by: Department of Highways
Coordinates: 39.338, -83.057 (the zone’s center; the record gives no point)

Four inches of snow was reported at the county garage in Chillicothe. A spotter in the same town measured 5 inches.

Heavy Snow, Scioto

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Scioto forecast zone
Reported by: Emergency Manager
Coordinates: 38.804, -82.993 (the zone’s center; the record gives no point)

Six and a half inches of snow was reported in Portsmouth. In Wheelersburg, 5 inches was reported.

Heavy Snow, Union

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Union forecast zone
Reported by: Trained Spotter
Coordinates: 40.299, -83.372 (the zone’s center; the record gives no point)

At Marysville, 3.8 inches of snow was measured.

Heavy Snow, Warren

When: February 6, 1:00 PM EST to 11:00 PM EST
Where: Warren forecast zone
Reported by: NWS Employee
Coordinates: 39.428, -84.167 (the zone’s center; the record gives no point)

Seven inches of snow was measured in both Morrow and Lebanon.

What these are

Heavy Snow: Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

Every storm in Ohio in 2007 Every state in 2007 This day in weather history Warnings in Ohio, February 2007

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: 17461, 17463, 17464, 17465, 17466, 17467, 17469, 17471, 17474, 17476, 17477, 17480, 17491, 17493, 17496, 17498, 17499, 17501, 17506, 17507, 17508.