Hail on Date

Hail in St. Louis on Tuesday, April 2, 2024

The Storm Prediction Center logged 6 hail reports in St. Louis on Tuesday, April 2, 2024, between 1:55 am and 2:01 am CDT, in 2 of the metro's 12 counties. The largest was 1.00 inches at 2 NE Oakville (St. Louis, MO) at 2:01 am. NOAA radar flagged 360 hail signatures inside the metro that day: 35 rated a 100% chance of hail and 26 with a maximum expected size of 1 inch or more.

6spotter hail reports in the metro
1.00 inlargest reported, 2 NE Oakville
360radar hail signatures inside the metro, 35 rated 100%
2.50 inlargest expected size on radar
Map of St. Louis counties with 360 radar hail signatures and 6 spotter hail reports on April 2, 2024 St. Louis St. Louis City St. Charles Jefferson Franklin Lincoln Warren Madison St. Clair Monroe Jersey Clinton 1.00 in, 2 NE Oakville
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 2 places in Monroe, IL and St. Louis, MO, 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
1:55 am1.002 NNE OakvilleSt. Louis, MOmPING report of quarter sized hail. (LSX)
1:55 am1.002 NE OakvilleSt. Louis, MOReport from mPING: Quarter (1.00 in.). (LSX)
1:57 am1.001 N ColumbiaMonroe, ILReport from mPING: Quarter (1.00 in.). (LSX)
1:58 am1.001 ENE ColumbiaMonroe, ILQuarter sized hail on the north side of Columbia. (LSX)
1:58 am1.001 N ColumbiaMonroe, ILmPING report of quarter sized hail just north of Columbia. (LSX)
2:01 am1.002 NE OakvilleSt. Louis, MOReport from mPING: Quarter (1.00 in.). (LSX)

What NEXRAD radar recorded inside the metro

360 signatures from 5 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; 35 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
KPAH128191422.50 in12:04 am10:33 am
KVWX122131022.25 in12:04 am10:21 am
KLSX652201.50 in12:02 am10:38 am
KILX411000.50 in12:03 am10:35 am
KSGF40000.75 in12:12 am12:56 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 April 2, 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 Daylight Time) and by county: a report counts for St. Louis when its coordinates fall inside one of the metro's 12 counties (the counties of St. Louis, MO, St. Louis City, MO, St. Charles, MO, Jefferson, MO, Franklin, MO, Lincoln, MO, Warren, MO, Madison, IL, St. Clair, IL, Monroe, IL, Jersey, IL and Clinton, IL). 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.