Hail on Date

Hail in Amarillo on Monday, May 17, 2021

The Storm Prediction Center logged 10 hail reports in Amarillo on Monday, May 17, 2021, between 7:22 pm and 8:00 pm CDT, in 3 of the metro's 5 counties. The largest was 2.75 inches at Palo Duro Canyon (Randall County) at 7:25 pm. NOAA radar flagged 707 hail signatures inside the metro that day: 323 rated a 100% chance of hail and 230 with a maximum expected size of 1 inch or more.

10spotter hail reports in the metro
2.75 inlargest reported, Palo Duro Canyon
707radar hail signatures inside the metro, 323 rated 100%
4.00 inlargest expected size on radar
Map of Amarillo counties with 707 radar hail signatures and 10 spotter hail reports on May 17, 2021 Potter Randall Carson Armstrong Oldham 2.75 in, Palo Duro Canyon
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 6 places in Oldham, Potter and Randall counties, 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
7:22 pm1.003 E WildoradoOldham(AMA)
7:25 pm1.2512 SSE CanyonRandall(AMA)
7:25 pm2.75Palo Duro CanyonRandallHAIL DAMAGED SOME VEHICLES AND CAMPERS MAINLY ON THE SOUTH SIDE OF THE PARK. SOME HIKERS REPORTEDLY HAD SOME MINOR BUMPS AND BRUISES FROM THE HAIL. (AMA)
7:26 pm1.50Boys RanchOldham(AMA)
7:29 pm1.251 ESE Palo Duro CanyonRandallREPORT FROM MPING: HALF DOLLAR (1.25 IN.). (AMA)
7:29 pm1.752 E WildoradoOldhamGOLF BALL SIZE HAIL REPORTED EAST OF WILDORADO ON I-40. (AMA)
7:36 pm1.75Boys RanchOldham(AMA)
7:47 pm2.006 E Lake TanglewoodRandall(AMA)
7:54 pm1.256 E AmarilloPotterREPORT FROM MPING: HALF DOLLAR (1.25 IN.). (AMA)
8:00 pm1.256 E AmarilloPotterREPORT FROM MPING: HALF DOLLAR (1.25 IN.). (AMA)

What NEXRAD radar recorded inside the metro

707 signatures from 4 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; 323 were rated 100% and 46 had a maximum expected size of 2 inches or more.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KAMA28010280154.00 in12:03 am9:16 pm
KLBB21612784213.50 in12:00 am9:23 pm
KFDX1959063103.00 in12:04 am9:19 pm
KFDR164301.25 in7:52 pm9:19 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 May 17, 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 Amarillo when its coordinates fall inside one of the metro's 5 counties (Potter, Randall, Carson, Armstrong and Oldham 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.