Hail in Denver on Saturday, July 8, 2023
The Storm Prediction Center logged 17 hail reports in Denver on Saturday, July 8, 2023, between 3:33 pm and 4:09 pm MDT, in 4 of the metro's 7 counties. The largest was 1.75 inches at 1 ENE Columbine (Arapahoe County) at 3:41 pm. NOAA radar flagged 544 hail signatures inside the metro that day: 94 rated a 100% chance of hail and 126 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 6 places in Arapahoe, Denver, Douglas and Jefferson counties, named as the National Weather Service described them.
- Columbine 6 reports, up to 1.75 in
- Littleton 4 reports, up to 1.50 in
- Highlands Ranch 3 reports, up to 1.50 in
- Parker 2 reports, up to 1.25 in
- Chatfield Reservo 1 report, up to 1.00 in
- Ken Caryl 1 report, up to 1.00 in
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.
| Time | Size | Place | County | NWS comment |
|---|---|---|---|---|
| 3:33 pm | 1.00 | 2 NE Ken Caryl | Jefferson | Report from mPING: Quarter (1.00 in.) Time estimated by radar. (BOU) |
| 3:36 pm | 1.00 | 3 NNW Columbine | Denver | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:38 pm | 1.25 | 1 SE Littleton | Arapahoe | (BOU) |
| 3:39 pm | 1.00 | 2 NE Columbine | Arapahoe | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:39 pm | 1.25 | 3 NW Columbine | Jefferson | (BOU) |
| 3:41 pm | 1.75 | 1 ENE Columbine | Arapahoe | (BOU) |
| 3:42 pm | 1.25 | 1 W Columbine | Jefferson | (BOU) |
| 3:43 pm | 1.50 | 1 SSW Littleton | Arapahoe | (BOU) |
| 3:45 pm | 1.00 | 2 ENE Chatfield Reservo | Douglas | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:45 pm | 1.00 | Littleton | Arapahoe | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:47 pm | 1.50 | 2 NE Columbine | Arapahoe | Report from mPING: Ping Pong Ball (1.50 in.). Time estimated by radar. (BOU) |
| 3:51 pm | 1.50 | Highlands Ranch | Douglas | Report from mPING: Ping Pong Ball (1.50 in.). (BOU) |
| 3:53 pm | 1.00 | 3 SSE Highlands Ranch | Douglas | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:53 pm | 1.00 | Highlands Ranch | Douglas | Report from mPING: Quarter (1.00 in.). (BOU) |
| 3:54 pm | 1.50 | 1 SSE Littleton | Arapahoe | Report from mPING: Ping Pong Ball (1.50 in.). (BOU) |
| 4:08 pm | 1.25 | 3 W Parker | Douglas | Report from mPING: Half Dollar (1.25 in.). (BOU) |
| 4:09 pm | 1.00 | 1 WNW Parker | Douglas | Report from mPING: Quarter (1.00 in.). (BOU) |
What NEXRAD radar recorded inside the metro
544 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; 94 were rated 100% and 5 had a maximum expected size of 2 inches or more.
| Radar | Signatures | Rated 100% | 1 in or more | 2 in or more | Largest expected | First | Last |
|---|---|---|---|---|---|---|---|
| KDEN | 225 | 30 | 35 | 0 | 1.75 in | 12:01 am | 11:57 pm |
| KPUX | 104 | 18 | 31 | 1 | 2.25 in | 12:02 am | 10:54 pm |
| KFTG | 99 | 12 | 31 | 2 | 2.25 in | 12:05 am | 10:59 pm |
| KCYS | 84 | 24 | 26 | 2 | 2.00 in | 12:03 am | 10:52 pm |
| KGLD | 32 | 10 | 3 | 0 | 1.25 in | 3:22 pm | 8:14 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 8, 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 Denver when its coordinates fall inside one of the metro's 7 counties (Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and Jefferson 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.