A strong low pressure system over the northeastern portion of the country pushed cold air into the Ohio Valley, resulting in a period of snow showers. Gusty northwest winds of 15 to 20 mph with gusts to 30 mph caused some blowing and drifting through the early morning hours of the 27th.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS ILN wrote it up.
A strong low pressure system over the northeastern portion of the country pushed cold air into the Ohio Valley, resulting in a period of snow showers. Gusty northwest winds of 15 to 20 mph with gusts to 30 mph caused some blowing and drifting through the early morning hours of the 27th. One to two inches of snow fell on average.
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 26, 12:54 PM EST, 1 hour 6 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
1254 PM EST FRI FEB 26 2010
.SYNOPSIS...
A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL LIFT SLOWLY NORTHEAST
ALONG THE NEW ENGLAND COAST THROUGH THE WEEKEND. SEVERAL PIECES OF
ENERGY ASSOCIATED WITH THIS LOW WILL ROTATE DOWN INTO THE UPPER
OHIO VALLEY. THIS WILL LEAD TO OCCASIONAL SNOW SHOWERS TODAY
THROUGH SATURDAY.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
RADAR SHOWS SNOW SHOWERS SPREADING IN FROM THE NORTHEAST. THIS
SEEMS TO BE WELL HANDLED BY THE SHORT RANGE MODELS AND HAVE
FOLLOWED THAT CONSENSUS IN TERMS OF POPS. THUS TIGHTENED UP
GRADIENT WITH LITTLE OR NO PRECIPITATION EXPECTED IN THE
SOUTHWEST. IN FACT SKIES HAVE CLEARED THERE AND IT MAY BE UNTIL
LATE IN THE DAY BEFORE CLOUDS SPREAD BACK IN TO FAR SOUTHWESTERN
COUNTIES. EXPECT ACCUMULATIONS TO BE LIMITED DURING THE DAYLIGHT
HOURS DUE TO INCREASING SOLAR RADIATION THIS TIME OF YEAR.
FORECAST TEMPERATURES LOOK REASONABLE. BACKED OFF SLIGHTLY ON WIND
GUSTS.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/...
UPPER LEVEL ENERGY WILL CONTINUE TO PIVOT SLOWLY SOUTHWEST ACROSS
THE AREA OVERNIGHT. THIS SHOULD LEAD TO AN INCREASING CHANCE OF
SNOW SHOWERS ACROSS THE SOUTHWEST HALF OF OUR AREA. THE BEST LIFT
TONIGHT LINES UP NICELY WITH THE FAVORABLE DENDRITIC GROWTH ZONE
SO EXPECT MORE EFFICIENT SNOW PRODUCTION TONIGHT. WILL THEREFORE
GO WITH 1 TO 2 INCHES MOST PLACES...DESPITE SOMEWHAT WEAKER
FORCING. WILL CONTINUE WITH ADVISORY ACROSS THE FAR NORTHEAST AS
GUSTY WINDS WILL LIKELY PERSIST THROUGH MUCH OF THE EVENING.
EXPECT A CONTINUATION OF SNOW SHOWERS ON INTO SATURDAY AS ANOTHER
SPOKE OF ENERGY ROTATES DOWN ACROSS THE REGION. HOWEVER...THE BEST
LIFT ASSOCIATED WITH THIS IS FORECAST TO REMAIN MAINLY TO OUR
EAST AND WITH IT BEING DURING THE DAYTIME PERIOD...WILL GO AHEAD
AND LIMIT SNOWFALL ACCUMULATIONS TO AN INCH OR LESS.
SNOW SHOWER ACTIVITY SHOULD THEN SLOWLY TAPER OFF SATURDAY NIGHT
INTO SUNDAY AS UPPER LEVEL LOW LIFTS SLOWLY OFF TO THE NORTHEAST.
WILL CONTINUE TO TREND TEMPS TOWARD THE COOLER MET GUIDANCE
THROUGH THE WEEKEND.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
THE 12Z GFS MADE A SIGNIFICANT JUMP TOWARD THE SOLUTION BEING
ADVERTISED BY THE 00Z ECMWF AND THEN GENERALLY UPHELD BY THE 12Z
ECMWF. A SHORTWAVE WILL SWING SOUTH THROUGH THE OHIO VALLEY MONDAY
NIGHT AND CLOSE OFF AS IT HEADS FURTHER SOUTH...BUT AT THE TIME IT
PASSES THROUGH HERE MOISTURE LOOKS RELATIVELY UNIMPRESSIVE. WHILE
SOME FLURRIES OR LIGHT SNOW SHOWERS MAY BE POSSIBLE WILL KEEP THIS
OUT OF THE FORECAST FOR NOW UNTIL TIMING AND PLACEMENT IS BETTER
DEFINED. AS THIS UPPER LOW STRENGTHENS MARKEDLY WHILE SWINGING
SOUTH AND THEN EAST...IT WILL HELP BUILD A WINTER STORM EVENT
ACROSS THE MID-ATLANTIC...BUT RIGHT NOW ITS NORTHWARD EXTENT DOES
NOT QUITE LOOK LIKE IT WILL BUILD BACK INTO OUR FORECAST AREA.
HIGH PRESSURE WILL BUILD IN FROM THE NORTH FOR THURSDAY...ALLOWING
SOME OF THE MORE OPTIMISTIC SKY GRIDS FOR THE FORECAST PACKAGE.
SOLUTIONS DIVERGE AFTER THIS POINT ON ANOTHER LOW PRESSURE SYSTEM
ADVANCING FROM THE WEST...WITH THE ECMWF BEING A FASTER BUT WEAKER
SOLUTION. SOME DEGREE OF PRECIPITATION MAY BE APPROACHING THE AREA
BY DAY 7...BUT NOT IN TIME FOR THE CURRENT 7 DAY CYCLE.
FOR TEMPERATURES...WENT CLOSE TO GUIDANCE NUMBERS BUT WITH MORE
MUTED SWINGS DUE TO CLOUDS IN THE FIRST HALF OF THE EXTENDED. AS
SKIES CLEAR LATER IN THE EXTENDED...HIGHS ARE CLOSE TO
GUIDANCE...BUT DROPPED THE BOTTOM OUT ON LOWS A LITTLE BIT. ASIDE
FROM A SLIGHT COOL DOWN ON TUESDAY...TEMPERATURES WILL BE GRADUALLY
MODERATING BY THE END OF THE FORECAST. EVEN STILL...CONDITIONS WILL
REMAIN BELOW NORMAL.
&&
.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
BAND OF SNOW SHOWERS WILL SWEEP SOUTH SOUTHWEST ACROSS THE REGION
DURING THE FIRST HALF OF THE PERIOD. AS THIS MOVES ACROSS EXPECT
VISIBILITIES TO DROP TO IFR TO LIFR. THESE SNOW SHOWERS WILL PUSH
SOUTH OF THE TERMINALS AFTER 06Z WITH SOME LINGERING FLURRIES
POSSIBLE THEREAFTER. APPEARS THAT CEILINGS WILL REMAIN MVFR
THROUGH THE PERIOD...PRIMARILY BELOW 2000 FT. WEST NORTHWEST
WINDS GUSTING UP TO 26 KT WILL START TO SLOWLY DIMINISH AROUND
DUSK WITH GUSTS DROPPING OFF BY 06Z.
OUTLOOK...MVFR CEILINGS WILL LIKELY PERSIST THROUGH WEDNESDAY.
MVFR TO OCCASIONALLY IFR VISIBILITIES POSSIBLE SATURDAY AFTERNOON
AND EVENING AND THEN AGAIN TUESDAY INTO WEDNESDAY.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...WINTER WEATHER ADVISORY UNTIL 6 AM EST SATURDAY FOR OHZ046-055-
056-065-074.
KY...NONE.
IN...NONE.
&&
SYNOPSIS...JGL
NEAR TERM...
SHORT TERM...JGL
LONG TERM...HATZOS
AVIATION...HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 417 AM EST FRI FEB 26 2010 OHZ046-055-056-065-074-271000- DELAWARE-FRANKLIN OH-LICKING-FAIRFIELD-HOCKING- 417 AM EST FRI FEB 26 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 AM EST SATURDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL OHIO. .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. WINTER WEATHER ADVISORY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SNOW ACCUMULATIONS TO THE NATIONAL WEATHER SERVICE. INZ050-058-059-066-073>075-KYZ091>093-OHZ026-034-035-042>045-051>054- 060>064-070>073-077>082-088-271000- WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-BOONE- KENTON-CAMPBELL-HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH- MIAMI-CHAMPAIGN-CLARK-MADISON-PREBLE-MONTGOMERY-GREENE-FAYETTE OH- PICKAWAY-BUTLER-WARREN-CLINTON-ROSS-HAMILTON-CLERMONT-BROWN-HIGHLAND- ADAMS-PIKE-SCIOTO- 417 AM EST FRI FEB 26 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO. .DAY ONE...TODAY AND TONIGHT. SNOW SHOWERS WILL BECOME MORE NUMEROUS THROUGH THIS AFTERNOON AND CONTINUE INTO TONIGHT. SNOW ACCUMULATIONS THROUGH TONIGHT OF 1 TO 2 INCHES WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SNOW ACCUMULATIONS TO THE NATIONAL WEATHER SERVICE. INZ080-KYZ089-090-094>100-271000- SWITZERLAND-CARROLL-GALLATIN-OWEN-GRANT-PENDLETON-BRACKEN-ROBERTSON- MASON-LEWIS- 417 AM EST FRI FEB 26 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST INDIANA...NORTHEAST KENTUCKY AND NORTHERN KENTUCKY. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The national radar mosaic for the moment the first event began.
4 winter weather. Local standard time, as filed.
Spotters in Centerville and in Richmond both measured 2 inches of snowfall.
A spotter in Alpine measured an inch of snowfall.
A spotter in Versailles measured 0.8 inches of snowfall.
A spotter in Manchester measured a half inch of snowfall.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2010Every state in 2010This day in weather historyWarnings in Indiana, February 2010
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 2026-10-01. Each event’s entry at NCEI: 217422, 217424, 217425, 217426.