Hail map — September 18, 2026
NOAA radar detected hail of an inch or more over 41 cities across 2 states on September 18, 2026. The largest stones — 2.00″, hen egg size — fell over Layton, UT.
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- States hit
- 2
- Cities hit
- 41
- Largest stone
- 2.00″
- hen egg size
- Impact rating
- 7/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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States hit on September 18, 2026
Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.
Hardest hit on September 18, 2026
Showing the 24 largest of 41 cities hit. The rest are under their state above.
What people on the ground measured in the US on September 18, 2026
15 reports filed with the National Weather Service — 4 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.75″ golf ball size Emergency Mngr16 SE Randlett, UT3:46 AM MDTUintah County
- 1.50″ half dollar size Public2 W Kaysville, UT1:45 PM MDTDavis County
From a picture shared with our office via social media, reported as Kaysville just west of I-15.
- 1.50″ half dollar size Trained Spotter1 W Farmington, UT2:38 PM MDTDavis County
Report shared via Spotter Network.
- 1.25″ half dollar size Public1 W Layton, UT2:15 PM MDTDavis County
Public report of measured half-dollar sized hail.
- 1.00″ quarter size Public2 NW Kimball Jct, UT9:16 AM MDTSummit County
Public report of quarter sized hail.
- 1.00″ quarter size Trained Spotter1 NW Farmington, NM1:15 PM MDTSan Juan County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained Spotter3 NE Farmington, NM1:20 PM MDTSan Juan County
- 1.00″ quarter size Public1 WSW Layton, UT1:39 PM MDTDavis County
Multiple social media reports depicting quarter sized hail. Time estimated via radar.
- 1.00″ quarter size Public1 SW Farmington, UT2:30 PM MDTDavis County
Multiple social media reports depicting quarter sized hail. Time estimated via radar and other hail reports within the vicinity.
- 1.00″ quarter size Public2 W Midvale, UT4:04 PM MDTSalt Lake County
Social media video depicting estimated quarter sized hail in West Jordan. Time estimated via radar.
- 1.00″ quarter size Public1 WSW Taylorsville, UT4:04 PM MDTSalt Lake County
Estimated quarter sized hail reported on social media. Time estimated via radar.
- 1.00″ quarter size Public2 SW Taylorsville, UT4:10 PM MDTSalt Lake County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size CocorahsDinosaur, CO4:30 PM MDTMoffat County
Maximum hail size of 1.00 inch, did cause some damage to car roofs and shredded leaves. Average hail size was 0.375 inches.
- 1.00″ quarter size Cocorahs6 NNW Massadona, CO5:45 PM MDTMoffat County
Maximum hail size 1.00 inch, average hail size 0.50 inch.
- 0.88″ penny size Public1 SSW Pleasant Grove, UT7:00 AM MDTUtah County
Social media report of nickel sized hail around 7AM MT.
Showing the 15 largest of 26 hail reports filed that day.
These are verified ground reports, updated every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other hail days
US hail on September 18, 2026
NOAA radar put hail of an inch or more over 41 cities across 2 states on September 18, 2026. The largest stones — 2.00 inches, hen egg size — were over Layton, UT. Every state hit is listed on this page, and every city under it.