Moderate Extreme Weather ● Active
Special Weather Statement issued October 21 at 3:31PM MDT by NWS Salt Lake City UT, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
At 331 PM MDT, Doppler radar was tracking a strong thunderstorm near
St George, or 31 miles southwest of Zion National Park, moving north
at 40 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
St George, Washington, Santa Clara, Dameron Valley, Ivins, Snow
Canyon State Park, Veyo, Pine Valley and Bloomington.
This includes the following highways...
Interstate 15 between mile markers 3 and 15. Utah Route 18 between
mile markers 0 and 18...and between mile markers 21 and 30.
Measurements
| Coordinates | 37.2300, -113.6000 |
|---|---|
| Region | Lower Washington County; Southern Mountains |
| Location Precision | polygon |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Observed |
| Cap Expires | 2026-10-21T16:00:00-06:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 21, 2026 21:32 UTC) · we last heard from WMO Alert Hub (national weather services) 5 seconds ago
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Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.
Open Lightning Safety Guide →Earlier extreme weather events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.