Hail on Date

Hail in Chicago on Tuesday, February 27, 2024

The Storm Prediction Center logged 31 hail reports in Chicago on Tuesday, February 27, 2024, between 6:52 pm and 8:54 pm CST, in 5 of the metro's 7 counties. The largest was 2.50 inches at 1 SW Darien (DuPage County) at 7:54 pm. NOAA radar flagged 2,529 hail signatures inside the metro that day: 1,026 rated a 100% chance of hail and 846 with a maximum expected size of 1 inch or more.

31spotter hail reports in the metro
2.50 inlargest reported, 1 SW Darien
2,529radar hail signatures inside the metro, 1,026 rated 100%
2.25 inlargest expected size on radar
Map of Chicago counties with 2529 radar hail signatures and 31 spotter hail reports on February 27, 2024 Cook DuPage Kane Lake McHenry Will Kendall 2.50 in, 1 SW Darien
Amber dots are radar hail signatures inside the metro's counties (every cell the algorithm rated, 10% to 100% chance of hail), darkest under 1 inch, brighter from 1 inch, brightest at 2 inches and up. Triangles are spotter reports; the filled one is the largest. County names are drawn at each county's center.

Where hail was reported

Reports came from 24 places in Cook, DuPage, Kane, McHenry and Will counties, named as the National Weather Service described them.

Every hail report logged that day

Times are Central Standard Time. Sizes are in inches, as reported. The comment is the National Weather Service's text as published in the Storm Prediction Center's daily log.

TimeSizePlaceCountyNWS comment
6:52 pm1.00HuntleyMcHenryPublic report of quarter sized hail in Huntley. (LOT)
7:05 pm1.003 ESE Maple ParkKaneRelayed via mPING. Time estimated by radar. (LOT)
7:25 pm1.001 N WayneDuPagePhoto shared via social media showing 1 inch diameter hail in Wayne. Time estimated from radar. (LOT)
7:30 pm1.003 SSE East DundeeKaneRelayed via mPING. Time estimated by radar. (LOT)
7:34 pm1.001 SSW Hoffman EstatesCookRelayed via mPING. Time estimated by radar. (LOT)
7:38 pm1.004 ESE AuroraDuPageEstimated quarter size hail near Eola and Ogden. (LOT)
7:47 pm1.503 N PlainfieldWillNWS employee reports hail up to 1.5 inch diameter in Plainfield. Time estimated by radar. (LOT)
7:49 pm1.003 SSE NapervilleDuPageQuarter sized hail near 87th Street and Naper Boulevard in Naperville. Time estimated by radar. (LOT)
7:50 pm1.503 N PlainfieldWill(LOT)
7:51 pm1.003 WSW BolingbrookWillWill County EMA reported hail up to quarter sized in west Bolingbrook. Time estimated by radar. (LOT)
7:54 pm2.501 SW DarienDuPagePhoto shared via social media showing 2.5 inch diameter hailstone on the south side of Downers Grove. Another report of 2 inch diameter hail was also received from the (LOT)
7:56 pm1.003 SSE NapervilleDuPageNickel to quarter size hail near Washington and 87th. (LOT)
7:57 pm1.75RomeovilleWillPhoto shared via broadcast media showed golf ball sized hail in north Romeoville. Time estimated by radar. (LOT)
8:00 pm2.002 ESE WoodridgeDuPagePhoto shared via social media shows hail up to hen egg size between Downers Grove and Darien. Time estimated by radar. (LOT)
8:00 pm1.001 S Downers GroveDuPageQuarter sized hail reported in south Downers Grove. (LOT)
8:01 pm1.251 E BolingbrookWillPublic report of half dollar sized hail in eastern Bolingbrook. Time estimated by radar. (LOT)
8:06 pm1.752 SW DarienDuPageRelayed via mPING. Time estimated by radar. (LOT)
8:09 pm1.001 E LockportWillNWS employee observed quarter sized hail in Lockport. Time estimated by radar. (LOT)
8:09 pm1.75DarienDuPageRelayed via mPING. Time estimated by radar. (LOT)
8:10 pm1.00La Grange ParkCookRelayed via mPING. Time estimated by radar. (LOT)
8:11 pm1.00LockportWill(LOT)
8:12 pm1.00Homer GlenWill(LOT)
8:13 pm1.003 ESE LemontCookRelayed via mPING. Time estimated by radar. (LOT)
8:30 pm1.003.0 SW Midway AirportCookQuarter size hail from 830pm to 835pm. Peak wind 41 mph. (LOT)
8:36 pm1.501 W Oak LawnCookRelayed via mPING. Time estimated by radar. (LOT)
8:37 pm1.251 ENE Orland HillsCookPhoto relayed by Kane County EMA shows hail approximately half dollar sized near 162nd Street and 88th Avenue in Orland Park. Time estimated by radar. (LOT)
8:44 pm2.001 NNW Oak ForestCookTime estimated from radar. (LOT)
8:45 pm1.501 NW Oak ForestCookTrained spotter reports hail up to ping pong ball sized near 155th and Long Avenue in Oak Forest. Hail occurred from 840pm to 852pm. (LOT)
8:46 pm1.501 WNW MidlothianCookRelayed via mPING. Time estimated by radar. (LOT)
8:52 pm1.00South HollandCookPhoto shared via social media showing 1 inch diameter hail in South Holland. Time estimated from radar. (LOT)
8:54 pm1.75Hegeswisch - ChicagoCookPhoto shared via social media showing hail in the Hegewisch community area of Chicago with the largest hailstone appearing to be roughly the size of a golf ball. Time e (LOT)

What NEXRAD radar recorded inside the metro

2,529 signatures from 9 radars fell inside the metro's counties on this local date, counting every cell the algorithm rated from a 10% to a 100% chance of hail; 1,026 were rated 100% and 4 had a maximum expected size of 2 inches or more.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KORD1,07929434301.75 in5:40 pm9:01 pm
KMDW85338132201.75 in5:44 pm8:58 pm
KMKE237931201.00 in6:25 pm8:12 pm
KMKX89634512.00 in5:46 pm8:58 pm
KLOT74353401.50 in5:40 pm8:53 pm
KILX69582601.50 in5:58 pm8:59 pm
KDVN65523522.25 in6:05 pm8:31 pm
KIWX42362212.00 in7:21 pm9:00 pm
KGRR2114701.00 in7:34 pm8:57 pm

Each radar that scans a storm writes its own signature about every 4 to 6 minutes, so one storm produces many rows and overlapping radars count it more than once. The raw rows for this day are in NOAA's Severe Weather Data Inventory.

Check an address for February 27, 2024

See, free, how many hail signatures NOAA recorded within 1, 3 and 5 miles of one address that day and the nearest spotter report. The full report is $19.

Spotter reports come from the Storm Prediction Center's preliminary daily logs, grouped here by local calendar date (Central Standard Time) and by county: a report counts for Chicago when its coordinates fall inside one of the metro's 7 counties (Cook, DuPage, Kane, Lake, McHenry, Will and Kendall counties). Radar signatures are estimates from the Hail Detection Algorithm, not measured stones; they include every cell it rated, from a 10% to a 100% probability of hail. How these pages are built.