Interactive NWS Alert

Radar valid at 100 am MDT, Sep 11th 2025

COZ001-110700-
Lower Yampa River Basin CO-
1227 AM MDT Thu Sep 11 2025

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL MOFFAT COUNTY
THROUGH 100 AM MDT...

At 1227 AM MDT, Doppler radar was tracking a strong thunderstorm 20
miles north of Dinosaur, or 33 miles east of Vernal, moving northeast
at 50 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.

Locations impacted include...
Greystone.

This includes Colorado 318 between mile markers 6 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4040 10885 4048 10904 4093 10893 4076 10845
TIME...MOT...LOC 0627Z 208DEG 44KT 4053 10891

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.