Hail on Date

Hail in Kansas City on Thursday, May 27, 2021

The Storm Prediction Center logged 7 hail reports in Kansas City on Thursday, May 27, 2021, between 5:04 pm and 5:56 pm CDT, in 3 of the metro's 11 counties. The largest was 1.75 inches at 2 SSE Basehor (Leavenworth, KS) at 5:37 pm. NOAA radar flagged 961 hail signatures inside the metro that day: 30 rated a 100% chance of hail and 66 with a maximum expected size of 1 inch or more.

7spotter hail reports in the metro
1.75 inlargest reported, 2 SSE Basehor
961radar hail signatures inside the metro, 30 rated 100%
4.00 inlargest expected size on radar
Map of Kansas City counties with 961 radar hail signatures and 7 spotter hail reports on May 27, 2021 Jackson Clay Platte Cass Ray Clinton Lafayette Johnson Wyandotte Leavenworth Miami 1.75 in, 2 SSE Basehor
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 5 places in Clay, MO, Leavenworth, KS and Wyandotte, KS, named as the National Weather Service described them.

Every hail report logged that day

Times are Central Daylight 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
5:04 pm1.504 SSW KearneyClay, MOCALLER PHONED INTO OFFICE REPORTING LARGE HAIL WHILE DRIVING NORTH ON I-35 TOWARDS KEARNEY. (EAX)
5:37 pm1.752 SSE BasehorLeavenworth, KS(EAX)
5:37 pm1.751 S BasehorLeavenworth, KSREPORT OF GOLF BALL SIZED HAIL AND 65MPH WINDS IN BASEHOR. (EAX)
5:50 pm1.001 E PiperWyandotte, KSREPORT FROM MPING: QUARTER (1.00 IN.). (EAX)
5:52 pm1.501 NNW MaywoodWyandotte, KS(EAX)
5:52 pm1.002 SE FairmountLeavenworth, KSREPORT FROM MPING: QUARTER (1.00 IN.). (EAX)
5:56 pm1.001 W MaywoodWyandotte, KS1 INCH HAIL REPORTED ON SOCIAL MEDIA... A PICTURE VERIFYING MEASUREMENT WAS PROVIDED. LOCATION WAS NEAR LEGENDS NEAR KC SPEEDWAY. (EAX)

What NEXRAD radar recorded inside the metro

961 signatures from 7 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; 30 were rated 100% and 7 had a maximum expected size of 2 inches or more.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KMCI28701901.75 in2:48 am7:54 pm
KTWX255132043.25 in2:49 am9:09 pm
KEAX254102434.00 in2:49 am7:40 pm
KSGF1607301.00 in3:06 am7:30 pm
KICT20000.50 in9:07 am9:13 am
KDMX20000.50 in7:33 pm7:38 pm
KOAX10000.50 in2:56 am2:56 am

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 May 27, 2021

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 Daylight Time) and by county: a report counts for Kansas City when its coordinates fall inside one of the metro's 11 counties (the counties of Jackson, MO, Clay, MO, Platte, MO, Cass, MO, Ray, MO, Clinton, MO, Lafayette, MO, Johnson, KS, Wyandotte, KS, Leavenworth, KS and Miami, KS). 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.