A system producing 1-2 inches of snow fell in east central Indiana.
Every event with a place to put it; 3 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 system producing 1-2 inches of snow fell in east central Indiana.
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, 10:55 AM EST, 1 hour 5 minutes earlier.
AREA FORECAST DISCUSSION
National Weather Service Wilmington OH
1055 AM EST Wed Feb 26 2020
.SYNOPSIS...
Low pressure will move northeast through the region today,
bringing a mix of rain and snow to the area. A cold front will
then move east through the Ohio Valley this afternoon, changing
precipitation to snow, and bringing cooler temperatures through
the rest of the week. Additional light snow will be possible on
Thursday night into Friday, with drier conditions over the
weekend.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Precipitation has overspread the region. This precipitation is
primarily rain across the east, snow across the west, and a mix
in between. Colder air will work in through the day and
precipitation will eventually change over to all snow. The
highest totals will be across northwestern portions of the
forecast area where the cold air will be in place longer. Kept
current winter weather advisory in place.
Lapse rates steepen later today and have winds increasing later
in the near term.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/...
Precipitation intensity should gradually diminish as the evening
progresses, but winds will be doing the opposite, as cold
advection behind the eastward-moving front leads to some
boundary layer mixing -- and some 20-30 MPH wind gusts. Any snow
that persists into the overnight will become more showery, with
little to no additional accumulation expected. Dry conditions
are expected on Thursday, but with a sharp pressure gradient
still in place, westerly winds will remain gusty. In this cold
advection pattern, with clouds generally remaining in place, max
temps will only reach the mid 20s to lower 30s.
&&
.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
Well advertised clipper will be dropping into the long wave
trough at the beginning of the period and then rounding the base
Friday into Friday night. This is a relatively compact system,
so the slight positional differences in the 00Z guidance could
have substantial impact on sensible weather. Have used a blend
weighted more towards ECMWF and its ensemble which take the
system just south of the forecast area. Thus only have chance
PoPs. But this will have to be monitored closely, because if the
slightly more northern solution of the GFS/NAM verify, there
there will be some light snow in southern counties for the
Friday morning commute. If precipitation does get into the
forecast area, it will eventually mix with or even change over
to rain on Friday afternoon before heading east.
Long wave pattern will deamplify as the trough moves east. This
will put the region in more zonal flow by Sunday which then
becomes southwesterly early next week. Thus after experiencing
temperatures nearly 10 degrees below normal on Friday and
Saturday, there will be a substantial warming trend. Sunday will
be a transition day and then readings will be above normal for
the remainder of the period. However, with the warmth will come
increasing moisture and precipitation. Precipitation may break
out as early as Sunday night, but there will be a better chance
on Monday with an initial impulse. There may be a lull in
activity before a stronger system approaches which brings the
potential for higher rainfall amounts.
&&
.AVIATION /15Z WEDNESDAY THROUGH SUNDAY/...
LIFR conditions are occurring at all TAF sites this morning,
with very poor aviation conditions in terms of both visibilities
and ceilings. As precipitation begins in the next couple hours,
visibilities may actually improve slightly, but still remaining
in the IFR to MVFR range. LIFR ceilings are expected through
much of the day, at least through afternoon.
Precipitation will begin as rain at all the TAF sites, switching
to snow during the late afternoon / evening time frame.
Impactful snow is most likely at KDAY, where accumulations and
IFR to possibly LIFR visibilities will occur. At the other
airports, snow should generally be lighter, with MVFR to
possibly IFR visibilities.
Though precipitation will gradually begin to decrease in
intensity during the evening, westerly winds will become
stronger, with gusts to around 25 knots by the end of the TAF
period. Ceilings will gradually improve overnight, reaching MVFR
levels before morning, as precipitation comes to an end.
OUTLOOK...MVFR ceilings will continue into Thursday morning and
possibly into the afternoon. Gusty winds will continue on
Thursday as well.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...Winter Weather Advisory until 4 AM EST Thursday for OHZ026-034-
035-042>044.
KY...None.
IN...None.
&&
SYNOPSIS...Hatzos
NEAR TERM...Novak
SHORT TERM...Hatzos
LONG TERM...
AVIATION...HatzosHazardous Weather Outlook National Weather Service Wilmington OH 407 AM EST Wed Feb 26 2020 OHZ026-034-035-042>044-270915- Hardin-Mercer-Auglaize-Darke-Shelby-Logan- 407 AM EST Wed Feb 26 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM EST THURSDAY... This Hazardous Weather Outlook is for West 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...Thursday through Tuesday. 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-OHZ045-046-051-052-270915- Wayne-Union OH-Delaware-Miami-Champaign- 407 AM EST Wed Feb 26 2020 This Hazardous Weather Outlook is for East Central Indiana, Central Ohio and West Central Ohio. .DAY ONE...Today and tonight. Rain is expected to change to snow today, with accumulations of around an inch, with locally higher amounts. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report snow accumulations to the National Weather Service. INZ058-059-066-073>075-080-KYZ089>100-OHZ053>056-060>065-070>074- 077>082-088-270915- Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-Switzerland- Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken- Robertson-Mason-Lewis-Clark-Madison-Franklin OH-Licking-Preble- Montgomery-Greene-Fayette OH-Pickaway-Fairfield-Butler-Warren- Clinton-Ross-Hocking-Hamilton-Clermont-Brown-Highland-Adams-Pike- Scioto- 407 AM EST Wed Feb 26 2020 This Hazardous Weather Outlook is for East Central Indiana, Southeast Indiana, Northeast Kentucky, Northern Kentucky, Central Ohio, South Central Ohio, Southwest Ohio and West Central Ohio. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. HATZOS
The national radar mosaic for the moment the first event began.
3 winter weather. Local standard time, as filed.
An inch of snow was reported in Richmond, and in Centerville via social media.
A half inch of snow was measured northeast of Osgood.
A half inch of snow was measured in Liberty.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2020Every state in 2020This day in weather historyWarnings in Indiana, February 2020
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 2026-09-30. Each event’s entry at NCEI: 878915, 878916, 878917.