Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Winter Weather Advisory
Area(s): Little Belt and Highwood Mountains
Effective: 4apeor20ap -> 5apeor0ap
Onset: 4apeor0ap -> 5aaeor0aa
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 4apeor20ap
Headline: Winter Weather Advisory issued May 4 at 1:20PM MDT until May 5 at 12:00PM MDT by NWS Great Falls MT
Description: * WHAT...Wet snow expected. Total snow accumulations of 3 to 6
inches. Winds gusting as high as 35 mph.

* WHERE...Little Belt and Highwood Mountains.

* WHEN...From 9 PM this evening to noon MDT Monday.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.

Alert: Red Flag Warning
Area(s): Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties; Dawson/McCone/Prairie/Richland/Wibaux Counties
Effective: 4aaeor56aa -> 4apeor0ap
Onset: 4apeor0ap -> 4apeor0ap
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 4aaeor56aa
Headline: Red Flag Warning issued May 4 at 2:56AM MDT until May 4 at 8:00PM MDT by NWS Glasgow MT
Description: * AFFECTED AREA...Fire weather zones 120 and 122.

* WIND...South at 15 to 25 mph with gusts to 30 mph.

* HUMIDITY...As low as 10 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 4aaeor51aa -> 5apeor0ap
Onset: 4apeor0ap -> 4apeor0ap
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 4aaeor51aa
Headline: Lake Wind Advisory issued May 4 at 2:51AM MDT until May 5 at 9:00PM MDT by NWS Glasgow MT
Description: * WHAT...North winds 15 to 25 mph with gusts up to 35 mph expected.

* WHERE...Fort Peck Lake.

* WHEN...From 9 PM this evening to 9 PM MDT Monday.

* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.

* ADDITIONAL DETAILS...Waves up to 4 feet are expected on the open
waters of Fort Peck Lake.