Heavy rain and gusty winds from Tropical Storm Moke will impact the Big Island into Monday, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Dangerous heat persists across the Southern Plains and Lower Mississippi Valley, building further into the Southwest by midweek. Read More >
Overview
From the morning hours of Wednesday February 2nd through the morning hours on Friday February 4th, a strong winter system moved through central Indiana initially bringing heavy rain to the area which then transitioned to a mix of sleet and freezing rain before becoming all snow. Snow began across the Lafayette area Wednesday morning with the heaviest snow during the day. The transition line spread to a line roughly from Muncie to Terre Haute before slowing down significantly. Heavy snow then impacted the I-70 corridor and points south on Thursday with additional light snow through the morning hours Friday. Significant travel impacts were noted throughout the storm with at least 15 of 39 central Indiana categories reaching their most severe form of county status, Travel Warning.
Snow
...2-DAY SNOWFALL REPORTS...7 AM 2/2 to 7 AM 2/4/2022... Note: Values from Tippecanoe and Warren Counties are 3-DAY SNOWFALL REPORTS...7 AM 2/1 to 7 AM 2/4/2022 I. GREATEST REPORTS for each COUNTY, where 8.0 or greater... County Location Snowfall Source CARROLL Camden 15.5 in Public TIPTON Tipton 5 SW 13.6 in CoCoRaHS FOUNTAIN Veedersburg 13.5 in Public TIPPECANOE West Lafayette 1 NW 13.2 in Broadcast Media HOWARD Kokomo 12.8 in Broadcast Media MONTGOMERY Waynetown 12.5 in Public CLINTON Frankfort 12.0 in Public WARREN State Line City 1 ENE 11.8 in Public DELAWARE Ball State University 10.5 in Public HANCOCK New Palestine 1.2 NW 10.0 in CoCoRaHS RUSH Morristown 3.8 ENE 10.0 in CoCoRaHS MARION Indianapolis Downtown 9.9 in Public HENRY Lewisville 1 W 9.8 in Public RANDOLPH Modoc 9.5 in CoCoRaHS MADISON North Anderson 8.8 in Public HENDRICKS Avon 1.6 NNW 8.7 in CoCoRaHS JOHNSON Greenwood 2.6 W 8.7 in CoCoRaHS HAMILTON Mccordsville 2.6 NE 8.6 in CoCoRaHS SULLIVAN Farmersburg TV-2 8.3 in COOP PARKE Rockville 3.6 ENE 8.0 in CoCoRaHS II. STORM TOTAL FROZEN PRECIPITATION REPORTS, by county... Central Indiana location Amount Time/Date Provider ...Bartholomew County... Taylorsville 0.8 SSW 6.5 in 0430 AM 2/4 CoCoRaHS Clifford 2 SSE 6.0 in 1049 AM 2/4 Trnd Spotter Columbus 2.2 NE 5.5 in 0700 AM 2/4 CoCoRaHS Columbus 6 WSW 5.5 in 0950 AM 2/4 Public Flat Rock 1.2 SSW 4.6 in 0700 AM 2/4 CoCoRaHS ...Boone County... Whitestown 3.1 E 8.6 in 0700 AM 2/4 CoCoRaHS Pike 1.5 ESE 8.5 in 0700 AM 2/4 CoCoRaHS Jamestown 2 E 8.0 in 0700 AM 2/4 COOP Sheridan 2.0 SW 7.5 in 0700 AM 2/4 CoCoRaHS Lebanon 6 W 7.2 in 0700 AM 2/4 COOP Zionsville 6.7 in 0600 AM 2/4 CoCoRaHS Thorntown 2 SW 6.5 in 1245 PM 2/3 Trnd Spotter ...Brown County... Beanblossom 1 NNE 6.3 in 1103 AM 2/4 Public Needmore 1.7 SSW 4.4 in 1000 AM 2/4 CoCoRaHS Stone head 2.3 ENE 3.6 in 0700 AM 2/4 CoCoRaHS ...Carroll County... Camden 15.5 in 0321 PM 2/4 Trnd Spotter Delphi 2 E 15.0 in 0321 PM 2/3 Public Burlington 14.5 in 0405 PM 2/3 Public Flora 14.5 in 1010 PM 2/3 Public Burlington 12.5 in 0700 AM 2/4 CoCoRaHS Flora 12.0 in 0700 AM 2/4 COOP Yeoman 2 WSW 12.0 in 0320 PM 2/3 Public Burrows 2 S 12.0 in 0400 PM 2/3 Public ...Clay County... Clay City 8.4 in 0700 AM 2/4 CoCoRaHS Brazil 1 E 6.2 in 1056 AM 2/4 Public Howesville 5.2 in 0908 AM 2/4 CoCoRaHS Bowling Green 1 W 5.0 in 0700 AM 2/4 COOP ...Clinton County... Frankfort 12.0 in 1114 AM 2/4 Public Mulberry 0.6 SSE 12.0 in 0800 AM 2/4 CoCoRaHS Kilmore 1.0 ENE 11.6 in 0700 AM 2/4 CoCoRaHS Frankfort Disposal 11.0 in 1159 PM 2/3 COOP ...Daviess County... Elnora 5.7 in 0400 PM 2/4 COOP Plainville 1.3 S 5.4 in 0700 AM 2/4 CoCoRaHS Washington 1 W 4.8 in 0600 PM 2/4 COOP Washington 3.3 SE 3.9 in 0700 AM 2/4 CoCoRaHS ...Decatur County... Lake Santee 1 NW 3.0 in 0536 PM 2/3 Public ...Delaware County... Ball State University 10.5 in 1049 AM 2/4 Public Muncie 1.2 SE 7.9 in 0755 AM 2/4 CoCoRaHS Macedonia 7.8 in 0700 AM 2/4 CoCoRaHS Yorktown 1.1 NNW 7.3 in 0700 AM 2/4 CoCoRaHS ...Fountain County... Veedersburg 13.5 in 0700 PM 2/4 Public Covington 7.0 in 0700 AM 2/3 CoCoRaHS ...Greene County... Elliston-Bloomfield 6.3 in 0800 AM 2/4 COOP Owensburg 1.0 N 5.0 in 0654 AM 2/4 CoCoRaHS Bloomfield 5.3 ESE 4.5 in 0830 AM 2/4 CoCoRaHS ...Hamilton County... McCordsville 2.6 NE 8.6 in 0700 AM 2/4 CoCoRaHS Carmel 2 NNW 8.1 in 0847 PM 2/3 Public Fishers 2 NE 8.0 in 0950 AM 2/4 Public Fishers 4.3 ENE 7.5 in 0700 AM 2/4 CoCoRaHS Sherridan 2.0 SW 7.5 in 0700 AM 2/4 CoCoRaHS Carmel 1.4 NNE 7.2 in 0700 AM 2/4 CoCoRaHS Carmel 2.8 NE 6.5 in 0700 AM 2/4 CoCoRaHS Westfield 2 SE 6.0 in 0830 PM 2/3 Public Noblesville 1 SE 5.0 in 0237 PM 2/3 Public Strawtown 2.2 E 5.0 in 0700 AM 2/4 CoCoRaHS ...Hancock County... New Palestine 1.2 NW 10.0 in 0800 AM 2/4 CoCoRaHS Greenfield 9.4 in 0900 AM 2/4 Public Greenfield 5 W 8.9 in 0800 AM 2/4 Public New Palestine 1.4 S 8.0 in 0700 AM 2/4 CoCoRaHS Wilkinson 4.1 W 6.5 in 0700 AM 2/4 CoCoRaHS Mccordsville 4 SSE 5.0 in 0215 PM 2/3 Public ...Hendricks County... Avon 1.6 NNW 8.7 in 0700 AM 2/4 CoCoRaHS Avon 1.4 SSW 7.6 in 0700 AM 2/4 CoCoRaHS Brownsburg 5.1 NNE 7.5 in 0700 AM 2/4 CoCoRaHS Plainfield 7.5 in 0700 AM 2/4 Public Brownsburg 0.8 NNW 7.3 in 0700 AM 2/4 CoCoRaHS Eagle Creek Reservoir 5 NNW 7.1 in 0804 PM 2/3 Amtr Radio Brownsburg 2 SSE 7.0 in 0638 PM 2/3 Trnd Spotter ...Henry County... Lewisville 1 W 9.8 in 0953 AM 2/4 Public New Castle 3.2 W 8.2 in 0700 AM 2/4 CoCoRaHS New Castle 3 SW 8.0 in 0700 AM 2/4 COOP Straughn 2 NW 6.5 in 0342 PM 2/3 Amtr Radio Knightstown 6.3 in 1001 AM 2/4 Public ...Howard County... Kokomo 12.8 in 1016 AM 2/4 Brdcst Media Kokomo 3 WSW 11.0 in 0700 AM 2/4 CoCoRaHS Indian Heights 1 WNW 11.0 in 0100 PM 2/3 Public Kokomo 1 NNW 10.0 in 0950 AM 2/4 Public ...Jackson County... Brownstown 2 ENE 4.8 in 1057 AM 2/4 Emrgncy Mngr Seymour 2.4 in 0700 AM 2/4 CoCoRaHS ...Jennings County... North Vernon 4.3 in 0954 AM 2/4 Public ...Johnson County... Greenwood 2.6 W 8.7 in 0700 AM 2/4 CoCoRaHS Waverly 4 ENE 8.5 in 0648 PM 2/3 Public Franklin 8.2 in 0700 AM 2/4 Public New Whiteland 8.0 in 0824 PM 2/3 Public Franklin WWTP 7.9 in 0700 AM 2/4 COOP Greenwood 4.6 SW 7.1 in 0700 AM 2/4 CoCoRaHS Franklin 1 W 6.3 in 0700 AM 2/4 COOP ...Knox County... Bicknell 0.5 W 4.5 in 0730 AM 2/4 CoCoRaHS Vincennes 4 E 4.3 in 0700 AM 2/4 COOP ...Lawrence County... Harrodsburg 2.9 SSW 6.1 in 0945 AM 2/4 CoCoRaHS Buddha 4.0 in 0700 AM 2/4 CoCoRaHS Oolitic 2.8 ENE 3.7 in 0700 AM 2/4 CoCoRaHS Mitchell 4.1 E 3.5 in 0730 AM 2/4 CoCoRaHS ...Madison County... North Anderson 8.8 in 0700 AM 2/4 Public Ingalls 3.0 WNW 8.0 in 0700 AM 2/4 CoCoRaHS Anderson 4.0 N 7.1 in 0700 AM 2/4 CoCoRaHS Country Club Heights 2 N 7.1 in 0933 PM 2/3 CoCoRaHS Elwood 7.0 in 0400 PM 2/3 Public Woodlawn Heights 1 S 6.0 in 0231 PM 2/3 Public Linwood 4 E 5.7 in 0341 PM 2/3 Amtr Radio Anderson 2.0 S 5.0 in 0700 AM 2/4 CoCoRaHS ...Marion County... Indianapolis Downtown 9.9 in 0700 AM 2/4 Public Irvington 9.6 in 0700 AM 2/4 CoCoRaHS Warren Park 1 SW 8.2 in 0725 PM 2/3 Public Clermont 1.1 N 8.0 in 0700 AM 2/4 CoCoRaHS Indianapolis 1 ENE 8.0 in 0824 PM 2/3 Public Southport 5 E 8.0 in 0700 AM 2/4 NWS Emply Indianapolis Intl Arpt 1 SE 7.6 in 1259 AM 2/4 NWS WFO McCordsville 1.3 W 7.6 in 0700 AM 2/4 CoCoRaHS Oaklandon 7.5 in 1052 AM 2/4 Public Meridian Hills 7.0 in 0700 AM 2/4 CoCoRaHS Speedway 6.9 in 0700 AM 2/4 CoCoRaHS Williams Creek 6.5 in 0700 AM 2/4 CoCoRaHS ...Martin County... Shoals 8 S 2.5 in 0700 AM 2/4 COOP Shoals 4.0 E 2.5 in 0700 AM 2/4 CoCoRaHS ...Monroe County... Ellettsville 2.7 NE 6.5 in 0700 AM 2/4 CoCoRaHS Ellettsville 1 WNW 6.5 in 0954 AM 2/4 Amtr Radio Unionville 3.2 NNW 6.0 in 0843 AM 2/4 CoCoRaHS Stinesville 2 NE 5.8 in 1013 PM 2/3 Public Ellettsville 0.5 W 5.6 in 0700 AM 2/4 CoCoRaHS Bloomington 6.5 WNW 5.5 in 0800 AM 2/4 CoCoRaHS Bloomington 1.7 NNW 4.5 in 0700 AM 2/4 CoCoRaHS ...Montgomery County... Waynetown 12.5 in 949 AM 2/4 Public Crawfordsville 1 S 12.0 in 0953 AM 2/4 Public Crawfordsville 6 SE 11.6 in 0600 AM 2/4 COOP New Market 2.6 WNW 10.3 in 0700 AM 2/4 NWS Emply ...Morgan County... Brooklyn 7.8 in 0820 AM 2/4 CoCoRaHS Paragon 3.2 ENE 7.5 in 0700 AM 2/4 CoCoRaHS Mooresville 1.8 NE 7.4 in 0700 AM 2/4 CoCoRaHS Camby 1 SSW 7.0 in 0714 PM 2/3 NWS Emply Martinsville 2.3 SE 5.4 in 0700 AM 2/4 CoCoRaHS ...Owen County... Mccormicks Creek State Park 6.2 in 1059 AM 2/4 Public Stinesville 2 W 5.8 in 0744 PM 2/3 Public Spencer 3 NW 5.7 in 1008 AM 2/4 Public Spencer 5.5 in 0700 AM 2/4 COOP Freeman 2.7 WSW 5.0 in 0700 AM 2/4 CoCoRaHS Freeman 2.8 NNE 4.8 in 0700 AM 2/4 CoCoRaHS ...Parke County... Rockville 3.6 ENE 8.0 in 0700 AM 2/4 CoCoRaHS ...Putnam County... Bainbridge 6.0 in 0253 PM 2/3 Public Greencastle 1 w 6.0 in 0321 PM 2/3 Trnd Spotter Cloverdale 3.5 W 5.8 in 0745 AM 2/4 CoCoRaHS ...Randolph County... Modoc 9.5 in 0700 AM 2/4 CoCoRaHS Parker City 9.0 in 0700 AM 2/4 CoCoRaHS Winchester 2.2 WSW 8.0 in 0700 AM 2/4 CoCoRaHS ...Rush County... Morristown 3.8 ENE 10.0 in 0700 AM 2/4 CoCoRaHS Carthage 1 NNE 6.1 in 1102 AM 2/4 Public Rushville 0.7 ENE 4.8 in 0607 PM 2/3 Public Rushville 3.5 in 0700 AM 2/4 COOP Homer 3.0 in 0700 AM 2/4 CoCoRaHS ...Shelby County... Shelbyville 2 SSW 7.9 in 0629 AM 2/4 Public Shelbyville 6.4 in 0700 AM 2/4 CoCoRaHS Shelbyville 1.6 SSE 6.1 in 0700 AM 2/4 CoCoRaHS ...Sullivan County... Farmersburg TV-2 8.3 in 1158 PM 2/3 COOP Graysville 5 WNW 6.6 in 0700 AM 2/4 COOP Hymera 5.0 in 0700 AM 2/4 CoCoRaHS ...Tippecanoe County... West Lafayette 1 NW 13.2 in 0545 PM 2/3 Brdcst Media Otterbein 2.0 ESE 13.0 in 0700 AM 2/4 CoCoRaHS West Lafayette 3.3 WNW 12.7 in 0700 AM 2/4 CoCoRaHS West Lafayette 12.0 in 0100 PM 2/3 Brdcst Media Battle Ground 4.0 WNW 11.8 in 0700 AM 2/4 CoCoRaHS Lafayette 8 S 11.7 in 0700 AM 2/4 COOP Lafayette 2.5 NE 10.4 in 0700 AM 2/4 CoCoRaHS Lafayette 2.2 S 10.2 in 0700 AM 2/4 CoCoRaHS ...Tipton County... Tipton 5 SW 13.6 in 0600 AM 2/4 CoCoRaHS ...Vigo County... Shepardsville 3.8 SE 7.0 in 0830 AM 2/4 CoCoRaHS Terre Haute 6.3 in 0902 PM 2/3 Public Seelyville 3.2 S 5.0 in 0842 AM 2/4 CoCoRaHS ...Warren County... State Line City 1 ENE 11.8 in 1101 AM 2/4 Public Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official.
Photos & Video
Assorted Pictures From the Snowfall
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Courtesy of Adam Wiggington Tipton County |
Courtesy of Samia Woodward Covington, IN |
Courtesy of Megan Fennell Lafayette, IN |
Courtesy of Daun Clark Elwood, IN |
Ice Reports
Location Amount Time/Date Provider
...Indiana...
...Jackson County...
3 ENE Seymour 0.10 in 1047 AM 02/04 Public
...Jennings County...
2 NE North Vernon 0.12 in 1048 AM 02/04 Public
Radar
Radar Imagery
WSR-88D KIND radar beginning 12Z 2Feb2022 - 00Z 4Feb2022 Base Reflectivity.
With this radar imagery you will see the multiple waves of precipitation that moved across Indiana. You will notice the higher reflectivity south of the Indy Metro area on the afternoon of the 3rd.
The higher reflectivity was likely attributed to a couple things. One is known as bright banding, which is associated with dendrites (snow) melting as it is falling. Which means the presence of warmer air aloft was in the vicinity. The liquid that encapsulated the dendrite will reflect back higher than that of a regular dendrite, thus causing the “bright banding” appearance on radar
Environment
As seen from the 12Z 2Feb2022 images below, frontogenesis from 950mb to 700mb is sloped. This is common when expecting banded precipitation. What dictates the size of the banded precipitation is a result in how stable/unstable the atmosphere is. The result of this particular case was that the environment was slightly more stable, thus producing a larger area of precipitation vs a defined deformation axis common with synoptically driven winter events.
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| Figure 1: 925mb Petterssen Frontogenesis | Figure 2: Petterssen Frontogenesis | Figure 3: 700mb Petterssen Frontogenesis |
Image below is from 18Z looking at the mean 925-850mb frontogenesis, and the gradient remaining over southern IL stretching northeast through central IN.
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| Figure 4: 925-850mb Petterssen Frontogenesis |
The Correlation Coefficient (CC) from the WSR-88D can show where mixed precipitation is occurring, as mixed precipitation contains many different sized particles than all of one type, e.g. snowflakes. The images below show a mosaic of CC at the 2km elevation across the region. As time passes and snow spreads slowly southeast, more of the area has a the smoother look of high CC values. (images courtesy of the MRMS program at NSSL)
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| Figure 5: CC at 7:00 PM EST Feb 2 | Figure 6: CC at 1:00 PM EST Feb 2 | Figure 7: CC at 7:00 PM EST Feb 2 |
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| Figure 8: CC at 7:00 AM EST Feb 3 | Figure 9: CC at 1:00 PM EST Feb 3 |
Broad southwest flow was aloft across central Indiana during the event. This kept warm air aloft for a long time, especially across southern portions of central Indiana. At the surface, cold air flowed in behind a cold front. Waves of low pressure riding long the front brought additional forcing for precipitation. Below are a couple of surface maps with radar. The upper air sounding image shows the cold air at the surface but lingering warm air aloft, which caused the mixed precipitation.
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| Figure 10: Surface Map and Radar valid at 7:00 PM EST Feb 2 | Figure 11: Surface Map and Radar valid at 7:00 AM EST Feb 3 | Figure 12: Sounding from Wilmington, OH at 7:00 AM EST Feb 3 |
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