A slow moving front will produce a threat for heavy rainfall and severe weather from New Mexico into the western High Plains through the weekend. Heavy rainfall is also expected this weekend in South Florida. The Bering Sea storm continues to bring heavy precipitation, strong winds, and minor to major coastal flooding through the weekend across western Alaska. Read More >
Overview
A storm system affected the southern Great Lakes and Ohio Valley in two distinct pieces Tuesday evening through Wednesday. The initial phase of this system Tuesday night into early Wednesday morning produced between 1 and 3 inches of snow across many areas north of Route 24. The stronger portion of this system brought an additional 2 to 5 inches of snow on Wednesday. Temperatures near or slightly above freezing Tuesday evening resulted in slushy snow. The combination of colder air moving into the region Wednesday and increasing winds led patchy blowing and drifting snow Wednesday afternoon into Wednesday evening.
Snow/Ice
Below is a graphical depiction of some storm reports across the region. This plot of storm reports will soon be replaced with a more detailed snowfall map some time late Thursday as all of the event storm reports are received.
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1152 AM EST THU FEB 27 2020
LOCAL STORM REPORT SUMMARY FOR LATE FEB 25 TO EARLY FEB 27 2020 SNOWSTORM.
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 AM SNOW 3 NE FORT WAYNE 41.10N 85.11W
02/27/2020 M4.6 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-51 FORT WAYNE 2.6 NE.
0700 AM SNOW 2 NE ROLLING HILLS 41.05N 85.24W
02/27/2020 M5.3 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-6 FORT WAYNE 5.4 WSW.
0700 AM SNOW 4 N NEW HAVEN 41.13N 85.03W
02/27/2020 M4.4 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-39 FORT WAYNE 7.0 NE.
0700 AM SNOW 3 WSW WOODBURN 41.12N 84.91W
02/27/2020 M4.9 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-32 WOODBURN 2.8 WSW.
0700 AM SNOW 4 NE FORT WAYNE 41.12N 85.09W
02/27/2020 M4.5 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-1 FORT WAYNE 4.1 NE.
0700 AM SNOW 3 N WOODBURN 41.16N 84.85W
02/27/2020 M3.8 INCH ALLEN IN CO-OP OBSERVER
CO-OP OBSERVER STATION WDBI3 WOODBURN 3 N.
0642 AM SNOW 3 NW FORT WAYNE 41.10N 85.18W
02/27/2020 M3.3 INCH ALLEN IN COCORAHS
COCORAHS STATION IN-AL-78 FORT WAYNE 2.6 NW.
0500 AM SNOW HUNTERTOWN 41.23N 85.17W
02/27/2020 M4.7 INCH ALLEN IN PUBLIC
VIA FACEBOOK.
0100 AM SNOW 2 NE NINE MILE 40.99N 85.19W
02/27/2020 M3.6 INCH ALLEN IN OFFICIAL NWS OBS
UPDATES PREVIOUS SNOW REPORT FROM 2 NE NINE
MILE. STORM TOTAL SNOWFALL.
0800 AM SNOW 2 NNW MILL GROVE 40.44N 85.29W
02/27/2020 M3.9 INCH BLACKFORD IN CO-OP OBSERVER
CO-OP OBSERVER STATION HRRI3 HARTFORD CITY 4
ESE.
0700 AM SNOW 1 N HARTFORD CITY 40.46N 85.37W
02/27/2020 M3.8 INCH BLACKFORD IN COCORAHS
COCORAHS STATION IN-BL-11 (KA9VIS) HARTFORD
CITY 0.7 N.
0800 AM SNOW 1 E LOGANSPORT 40.75N 86.35W
02/27/2020 M2.5 INCH CASS IN COCORAHS
COCORAHS STATION IN-CS-16 LOGANSPORT 0.6 E.
0800 AM SNOW 5 S DEACON 40.57N 86.33W
02/27/2020 M2.0 INCH CASS IN CO-OP OBSERVER
CO-OP OBSERVER STATION YNGI3 YOUNG AMERICA.
1200 AM HEAVY SNOW 2 ESE HELMER 41.52N 85.13W
02/27/2020 M8.0 INCH DE KALB IN TRAINED SPOTTER
STORM TOTAL SNOWFALL.
0800 AM SNOW 1 WNW JIMTOWN 41.64N 86.04W
02/27/2020 M4.1 INCH ELKHART IN COCORAHS
COCORAHS STATION IN-EL-36 ELKHART 4.8 SW.
0700 AM SNOW 2 NNE WAKARUSA 41.57N 85.99W
02/27/2020 M3.4 INCH ELKHART IN COCORAHS
COCORAHS STATION IN-EL-8 WAKARUSA 2.4 NNE.
0700 AM SNOW 1 SW GOSHEN 41.57N 85.85W
02/27/2020 M5.8 INCH ELKHART IN COCORAHS
COCORAHS STATION IN-EL-59 GOSHEN 1.2 SW.
0700 AM SNOW 3 WSW GOSHEN 41.56N 85.88W
02/27/2020 M5.5 INCH ELKHART IN COCORAHS
COCORAHS STATION IN-EL-39 GOSHEN 3.0 WSW.
0700 AM SNOW 1 WNW ROCHESTER 41.07N 86.21W
02/27/2020 M2.0 INCH FULTON IN CO-OP OBSERVER
CO-OP OBSERVER STATION RCRI3 ROCHESTER.
0400 PM SNOW AKRON 41.04N 86.02W
02/26/2020 M4.0 INCH FULTON IN TRAINED SPOTTER
VIA PHONE.
0713 AM SNOW 2 NNE MARION 40.58N 85.66W
02/27/2020 M3.3 INCH GRANT IN CO-OP OBSERVER
CO-OP OBSERVER STATION MZZI3 2.2 N MARION.
0700 AM SNOW 2 NE UPLAND 40.48N 85.49W
02/27/2020 M2.5 INCH GRANT IN COCORAHS
COCORAHS STATION IN-GR-33 (KB9ZLT) UPLAND
1.5 NE.
0700 AM SNOW 1 ENE UPLAND 40.47N 85.50W
02/27/2020 M3.0 INCH GRANT IN COCORAHS
COCORAHS STATION IN-GR-29 (KD9CQQ)UPLAND 0.7
ENE.
0515 AM SNOW 2 NW MARION 40.57N 85.69W
02/27/2020 M3.2 INCH GRANT IN COCORAHS
COCORAHS STATION IN-GR-2 MARION 1.8 NW.
0825 PM SNOW MARION 40.55N 85.67W
02/26/2020 M4.5 INCH GRANT IN TRAINED SPOTTER
VIA TWITTER.
0540 PM SNOW 1 W HOME CORNER 40.52N 85.67W
02/26/2020 E4.9 INCH GRANT IN TRAINED SPOTTER
VIA TWITTER. MEASURED ON SNOWBOARD.
0700 AM SNOW HUNTINGTON 40.88N 85.51W
02/27/2020 M5.7 INCH HUNTINGTON IN COCORAHS
COCORAHS STATION IN-HT-1 HUNTINGTON 0.3 W.
0700 AM SNOW 2 ENE WINONA LAKE 41.23N 85.78W
02/27/2020 M5.1 INCH KOSCIUSKO IN COCORAHS
COCORAHS STATION IN-KS-59 WARSAW 3.7 E.
0700 AM SNOW 1 N MILFORD 41.42N 85.85W
02/27/2020 M5.5 INCH KOSCIUSKO IN COCORAHS
COCORAHS STATION IN-KS-42 MILFORD 0.9 N.
0700 AM SNOW LEESBURG 41.33N 85.85W
02/27/2020 M6.5 INCH KOSCIUSKO IN COCORAHS
COCORAHS STATION IN-KS-11 LEESBURG 0.1 WNW.
1200 AM SNOW 3 S LAKE WAWASEE 41.36N 85.70W
02/27/2020 M7.3 INCH KOSCIUSKO IN OFFICIAL NWS OBS
STORM TOTAL SNOWFALL.
1100 PM SNOW JAMES LAKE 41.31N 85.72W
02/26/2020 M7.0 INCH KOSCIUSKO IN NWS EMPLOYEE
STORM TOTAL SNOWFALL.
0900 AM SNOW 2 W HANNA 41.41N 86.81W
02/27/2020 M4.0 INCH LA PORTE IN COCORAHS
COCORAHS STATION IN-LP-2 WANATAH 4.4 ESE.
1100 AM SNOW LAGRANGE 41.65N 85.42W
02/27/2020 M7.0 INCH LAGRANGE IN BROADCAST MEDIA
VIA CHAT.
0500 AM SNOW 2 N TWIN LAKES 41.33N 86.36W
02/27/2020 M4.9 INCH MARSHALL IN COCORAHS
COCORAHS STATION IN-ML-6 PLYMOUTH 2.5 WSW.
0700 AM SNOW 1 NE DENVER 40.88N 86.06W
02/27/2020 M3.5 INCH MIAMI IN COCORAHS
COCORAHS STATION IN-MM-4 DENVER 1.3 NE.
0637 PM SNOW CONVERSE 40.58N 85.87W
02/26/2020 M4.0 INCH MIAMI IN TRAINED SPOTTER
VIA TWITTER.
0700 AM SNOW 3 ENE ROME CITY 41.50N 85.31W
02/27/2020 M5.5 INCH NOBLE IN COCORAHS
COCORAHS STATION IN-NB-24 KENDALLVILLE 4.5
NW.
0330 PM SNOW AVILLA 41.37N 85.24W
02/26/2020 E5.0 INCH NOBLE IN PUBLIC
VIA FACEBOOK.
0730 AM SNOW NEW CARLISLE 41.71N 86.50W
02/27/2020 M3.5 INCH ST. JOSEPH IN CO-OP OBSERVER
CO-OP OBSERVER STATION NCLI3 NEW CARLISLE.
0710 AM SNOW 2 NW OSCEOLA 41.68N 86.10W
02/27/2020 M5.6 INCH ST. JOSEPH IN COCORAHS
COCORAHS STATION IN-SJ-26 MISHAWAKA 3.9 ENE.
0700 AM SNOW 2 ENE GULIVOIRE PARK 41.62N 86.22W
02/27/2020 M4.8 INCH ST. JOSEPH IN COCORAHS
COCORAHS STATION IN-SJ-58 SOUTH BEND 4.5 SE.
0700 AM SNOW 2 ENE GULIVOIRE PARK 41.62N 86.22W
02/27/2020 M4.6 INCH ST. JOSEPH IN COCORAHS
COCORAHS STATION IN-SJ-28 SOUTH BEND 4.6 SE.
0700 AM SNOW 3 N TEEGARDEN 41.50N 86.39W
02/27/2020 M4.3 INCH ST. JOSEPH IN COCORAHS
COCORAHS STATION IN-SJ-17 WALKERTON 5.7 ENE.
1200 AM SNOW 1 S ROSELAND 41.70N 86.25W
02/27/2020 M4.5 INCH ST. JOSEPH IN OFFICIAL NWS OBS
STORM TOTAL SNOWFALL.
0755 AM SNOW 1 WSW GOLDEN LAKE 41.60N 85.09W
02/27/2020 M6.5 INCH STEUBEN IN COCORAHS
COCORAHS STATION IN-SN-3 HUDSON 4.6 N.
0700 AM SNOW 2 WNW ANGOLA 41.65N 85.03W
02/27/2020 M9.2 INCH STEUBEN IN COCORAHS
COCORAHS STATION IN-SN-33 ANGOLA 1.7 WNW.
0700 AM SNOW 2 WSW GOLDEN LAKE 41.59N 85.10W
02/27/2020 M8.9 INCH STEUBEN IN COCORAHS
COCORAHS STATION IN-SN-2 HUDSON 4.1 NNW.
0545 AM SNOW 3 ENE CROOKED LAKE 41.70N 84.99W
02/27/2020 M7.1 INCH STEUBEN IN COCORAHS
COCORAHS STATION IN-SN-9 ANGOLA 4.1 N.
0457 PM SNOW ANGOLA 41.65N 85.00W
02/26/2020 E7.0 INCH STEUBEN IN PUBLIC
VIA FACEBOOK.
0400 PM SNOW 1 ENE CROOKED LAKE 41.68N 85.02W
02/26/2020 M6.5 INCH STEUBEN IN PUBLIC
VIA FACEBOOK.
0600 AM SNOW WABASH 40.80N 85.83W
02/27/2020 M3.0 INCH WABASH IN COCORAHS
COCORAHS STATION IN-WB-18 WABASH 0.3 NNW.
0600 AM SNOW 1 NW LA FONTAINE 40.68N 85.74W
02/27/2020 M3.0 INCH WABASH IN COCORAHS
COCORAHS STATION IN-WB-10 LA FONTAINE 1.1
NW.
0700 AM SNOW 1 SE BLUFFTON 40.73N 85.16W
02/27/2020 M2.5 INCH WELLS IN COCORAHS
COCORAHS STATION IN-WL-11 BLUFFTON 0.9 SE.
0830 PM SNOW 1 N BLUFFTON 40.76N 85.17W
02/26/2020 M2.3 INCH WELLS IN TRAINED SPOTTER
24 HOUR TOTAL. VIA PHONE.
0600 AM SNOW 1 NNE MONTICELLO 40.76N 86.76W
02/27/2020 M3.1 INCH WHITE IN COCORAHS
COCORAHS STATION IN-WH-18 MONTICELLO 1.0
NNE.
0500 AM SNOW 5 W CHALMERS 40.67N 86.95W
02/27/2020 M1.7 INCH WHITE IN CO-OP OBSERVER
CO-OP OBSERVER STATION CHRI3 5.6 N BADGER
GROVE.
0900 AM SNOW 1 WSW COLUMBIA CITY 41.16N 85.49W
02/27/2020 M3.4 INCH WHITLEY IN COCORAHS
COCORAHS STATION IN-WY-24 COLUMBIA CITY 0.5
WSW.
0700 AM SNOW 1 SSW BIG LAKE 41.26N 85.51W
02/27/2020 M6.2 INCH WHITLEY IN COCORAHS
COCORAHS STATION IN-WY-1 COLUMBIA CITY 6.9
N.
0400 PM SNOW 1 SSE PEABODY 41.08N 85.49W
02/26/2020 E4.5 INCH WHITLEY IN PUBLIC
VIA FACEBOOK.
0700 AM SNOW 1 ESE BUCHANAN 41.82N 86.34W
02/27/2020 M4.6 INCH BERRIEN MI COCORAHS
COCORAHS STATION MI-BN-3 BUCHANAN 1.4 ESE.
0700 AM SNOW 1 WNW BUCHANAN 41.84N 86.39W
02/27/2020 M4.5 INCH BERRIEN MI COCORAHS
COCORAHS STATION MI-BN-5 BUCHANAN 1.3 WNW.
0610 AM SNOW 2 SSE STEVENSVILLE 41.99N 86.51W
02/27/2020 M4.4 INCH BERRIEN MI COCORAHS
COCORAHS STATION MI-BN-2 STEVENSVILLE 1.7
SSE.
0644 AM SNOW 3 SE COLON 41.92N 85.28W
02/27/2020 M6.6 INCH BRANCH MI COCORAHS
COCORAHS STATION MI-BH-6 COLON 3.5 SE.
0404 PM SNOW 1 ESE COLDWATER 41.94N 84.99W
02/26/2020 E7.0 INCH BRANCH MI PUBLIC
VIA FACEBOOK.
0700 PM SNOW 1 NW DEWEY LAKE 42.07N 86.21W
02/26/2020 M6.0 INCH CASS MI PUBLIC
VIA FACEBOOK.
0800 AM SNOW 2 W CAMDEN 41.75N 84.79W
02/27/2020 M5.7 INCH HILLSDALE MI COCORAHS
COCORAHS STATION MI-HL-9 MONTGOMERY 1.9 SSE.
0635 AM SNOW LITCHFIELD 42.05N 84.75W
02/27/2020 M7.9 INCH HILLSDALE MI COCORAHS
COCORAHS STATION MI-HL-1 LITCHFIELD 0.3 ENE.
0600 AM SNOW 2 NW YODER 40.70N 84.10W
02/27/2020 M3.0 INCH ALLEN OH COCORAHS
COCORAHS STATION OH-AL-10 LIMA 3.0 SSE.
0600 AM SNOW 2 ESE DELPHOS 40.83N 84.30W
02/27/2020 M4.5 INCH ALLEN OH COCORAHS
COCORAHS STATION OH-AL-8 DELPHOS 2.3 ESE.
0733 AM SNOW 2 SSE BRAILEY 41.53N 83.91W
02/27/2020 M6.0 INCH FULTON OH COCORAHS
COCORAHS STATION OH-FL-13 SWANTON 4.0 S.
0935 PM SNOW 3 ESE FAYETTE 41.66N 84.27W
02/26/2020 M7.0 INCH FULTON OH TRAINED SPOTTER
VIA TWITTER.
0800 AM SNOW 1 WSW NAPOLEON 41.39N 84.14W
02/27/2020 M3.6 INCH HENRY OH COCORAHS
COCORAHS STATION OH-HY-7 NAPOLEON 0.6 WSW.
0700 AM SNOW 3 SSE MCCLURE 41.33N 83.91W
02/27/2020 M3.5 INCH HENRY OH COCORAHS
COCORAHS STATION OH-HY-5 MCCLURE 3.4 SSE.
1030 AM SNOW OTTAWA 41.02N 84.04W
02/27/2020 M4.6 INCH PUTNAM OH TRAINED SPOTTER
0930 AM SNOW 1 WNW VAN WERT 40.87N 84.60W
02/27/2020 M3.0 INCH VAN WERT OH EMERGENCY MNGR
STORM TOTAL SNOW.
0600 AM SNOW 1 WNW MONTPELIER 41.59N 84.62W
02/27/2020 M4.0 INCH WILLIAMS OH CO-OP OBSERVER
CO-OP OBSERVER STATION MOPO1 MONTPELIER.
$$
Environment
A mid and upper level system was responsible for bringing the heaviest snow to the region during the day Thursday.
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| Figure 1: 300 mb analysis 2/26/20 7am. Note the strong upper level jet streak lifting across the Ohio Valley. | Figure 2: 850 mb analysis 2/26/20 7am. This system was accompanied by a strong low level front which helped focus the period of best snowfall rates Wednesday. | Figure 3: Surface analysis 2/26/20 7am. Note the strengthening surface pressure gradient across the region. This provided gusty north winds and areas of blowing and drifting snow. |
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| Figure 4: 700-500 mb lapse rates 2/26/20 11am. Some instability aloft allowed some banded snow to form. In this image note the elevated instability axis nosing into northern Indiana midday Wednesday | Figure 5: RH Dendritic Growth Layer 2/26/20 12pm. A good deal of moisture in dendritic growth zone allowed for increasing snow to liquid ratios during the day Wednesday. | Figure 6: Dendritic Layer Depth 2/26/20 12pm. The dendritic growth zone also had some notable depth in excess of 1200 meters which allowed for more efficient snow production Wednesday afternoon. |
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