Hail on Date

Hail in Rapid City on Tuesday, July 11, 2023

The Storm Prediction Center logged 18 hail reports in Rapid City on Tuesday, July 11, 2023, between 4:56 pm and 11:00 pm MDT, in 2 of the metro's 2 counties. The largest was 2.00 inches at 4 S Dwtn Rapid City (Pennington County) at 10:23 pm. NOAA radar flagged 147 hail signatures inside the metro that day: 9 rated a 100% chance of hail and 13 with a maximum expected size of 1 inch or more.

18spotter hail reports in the metro
2.00 inlargest reported, 4 S Dwtn Rapid City
147radar hail signatures inside the metro, 9 rated 100%
2.75 inlargest expected size on radar
Map of Rapid City counties with 147 radar hail signatures and 18 spotter hail reports on July 11, 2023 Pennington Meade 2.00 in, 4 S Dwtn Rapid City
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 9 places in Meade and Pennington counties, named as the National Weather Service described them.

Every hail report logged that day

Times are Mountain 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
4:56 pm1.50Box ElderPennington(UNR)
5:48 pm1.002 NNE Johnson SidingPennington(UNR)
6:11 pm1.254 S Dwtn Rapid CityPennington(UNR)
6:15 pm1.00CaputaPennington(UNR)
6:19 pm1.004 S Dwtn Rapid CityPennington(UNR)
7:59 pm1.508 NNE HerefordMeade(UNR)
10:00 pm1.75Pactola ResvPennington(UNR)
10:10 pm1.00HisegaPennington(UNR)
10:19 pm1.755 NE RockervillePenningtonmPING report (UNR)
10:20 pm1.505 SW Dwtn Rapid CityPennington(UNR)
10:20 pm1.003 SW Dwtn Rapid CityPenningtonmPING report (UNR)
10:22 pm1.001 S Dwtn Rapid CityPennington(UNR)
10:23 pm2.004 S Dwtn Rapid CityPennington(UNR)
10:24 pm1.504 SW Dwtn Rapid CityPenningtonmPING report (UNR)
10:25 pm1.754 SSW Dwtn Rapid CityPennington(UNR)
10:25 pm1.504 WSW Dwtn Rapid CityPennington(UNR)
10:34 pm1.502 WSW RockervillePennington(UNR)
11:00 pm1.005 WNW HermosaPennington(UNR)

What NEXRAD radar recorded inside the metro

147 signatures from 1 radar 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; 9 were rated 100% and 2 had a maximum expected size of 2 inches or more.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KUDX14791322.75 in2:26 am8:27 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 July 11, 2023

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 (Mountain Daylight Time) and by county: a report counts for Rapid City when its coordinates fall inside one of the metro's 2 counties (Pennington and Meade 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.