Lamar hail storm history
Prowers County·NOAA NCEI Storm Events Database·~75-day publication lag
Lamar in Prowers County has experienced 18 documented hail events of 1 inch or larger over the past 10 years, placing it within the Eastern Plains hail corridor—one of North America's most active hail zones. The largest recorded hailstone in this area measured 2.25 inches in diameter. This frequency reflects Lamar's geographic position where storm systems track northeast from the Rocky Mountains with regular occurrence during the growing season.
Hail risk in Lamar peaks during May, June, and July, with secondary activity in April and August. These months align with the collision of warm, moist air from the south and cold upper-level systems moving across the plains—conditions that generate severe thunderstorms capable of producing large hail. Storm systems typically develop to the west and move northeast across Prowers County.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 137 recorded events, 65 (47%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Hail measured to 1.25 inches fell in eastern Bent County.
Hail measured to 1.5 inches occurred in south central Kiowa County.
Hail up to 1.25 inches fell in parts of central Kiowa County from an isolated supercell.
There was 1.5 inch hail measured.
Hail measured to 1 inch fell north-northeast of Bristol.
A public source via mPing, reported hail of 1 inch in diameter.
A CoCoRaHS source reported hail of 1 inch in diameter.
Hail of 1 inch in diameter was reported by a storm chaser via social media.
Reported by an NWS Employee, with the time estimated with radar.
Six miles southeast Lamar.
Broadcast Media reported large hail, 2 inches.
Public report of large hail, the size of 1.5 inches.
One inch hail.
Near Hasty.
Trained spotter from 2 miles south of Wiley.
Public report of 1 inch hail.
Trained spotter reported large hail, 1 inch.
A few hailstones up to baseball sized.
Half dollar sized hail reported.
Large hail reported by Kiowa County Sheriff.
Large hail reported by Kiowa County Emergency Manager in Eads, CO.
Several windows and windshields broken due to hail and wind.
Wind-driven hail broke windows of vehicles and houses.
NOAA hail records for Prowers County rely on trained spotter reports, emergency management records, and public submissions through systems like mPing. Hailstones smaller than 1 inch are generally not included in official databases, meaning actual storm frequency in Lamar is higher than documented events reflect.
NOAA Storm Events Database source