textproduct: Cheyenne

KEY MESSAGES

- A Red Flag Warning has been issued for portions of southeast Wyoming and western Nebraska from noon to 9 PM on Monday.

- Fire weather concerns continue Tuesday through at least Friday, with dry, breezy conditions and very warm temperatures. Minimal precipitation expected during this time. A Fire Weather Watch has been issued for Tuesday afternoon through Wednesday evening.

- A high wind event is looking increasingly likely for Tuesday evening into Wednesday for the wind prone regions of southeast Wyoming.

SHORT TERM /THROUGH MONDAY NIGHT/

Issued at 229 PM MDT Sun Jun 14 2026

Clouds and patchy fog continue to persist east of the Laramie Range this afternoon, leading to a cool day in the wake up yesterday's cold front. Temperatures are currently only sitting in the 50s and 60s and are not expected to get much warmer as the afternoon progresses. While the clouds remain, cannot rule out some light showers and sprinkles as observed this morning. Any precipitation that falls will likely be negligible since model soundings show a shallow saturated layer. Clouds will slowly dissipate through the afternoon, eventually becoming mostly clear later in the evening.

A return to warmer temperatures and drier conditions is expected for Monday. With strong upper-level ridging dominating the west coast, some of that continental tropical airmass will start to spill over into the Rockies. 700 mb temperatures will return to around +10C, leading to average highs in the 70s and 80s. Mid-level relative humidity will also drop to about 30 percent, leading to a mostly sunny day across the forecast area. The CWA will sit at the western periphery of a 250 mb jet during the day Monday, leading to gusty conditions. The warmer, drier, and windier conditions will lead to critical fire weather across much of the Nebraska panhandle and eastern Wyoming. As a result, the Fire Weather Watch in place has been upgraded to a Red Flag Warning as surface relative humidity will fall to about 15 percent with 30 MPH wind gusts. The Red Flag Warning will continue through Monday evening. Humidity recoveries Monday night will be fairly good due to increased cloud cover.

LONG TERM /TUESDAY THROUGH SUNDAY/

Issued at 229 PM MDT Sun Jun 14 2026

Tuesday morning starts off in Northwest flow on the front side of the Ridge. The clouds from Monday's shortwave should be clearing out during the as subsident and partial downsloping flow start to take over the Intermountain West. Depending on how fast we clear the clouds will result in potential Red Flag conditions in the afternoon and evening. Min RH is progged in the teens with an overnight recovery in the 30's and 40's. A 700mb jet will start to ramp up Tuesday night to around 50 to 60 knots as an upper level trough gets pushed into the Intermountain West and the Central CONUS area. This trough is attached to the parent low spinning over the Hudson bay that retrogrades slightly to the west and south tightening the pressure gradient over the Rockies. High winds may be possible over the I-80 corridor near the Arlington area with peak winds between 12-18z Wednesday morning. A high wind watch may be needed but we will wait until Monday to decide the headline decisions as High winds are typically uncommon for us in the summer, but it will definitely be windy. As the upper level trough peels off to the east our Northern counties from Niobrara to Dawes county in the Nebraska Panhandle looks likely to experience borderline high winds in the afternoon on top of elevated to critical Fire weather conditions. A fire weather watch was put out from 18z Tuesday to 02z Thursday (Wednesday Evening) to highlight these dangerous conditions. Wednesday afternoon to Wednesday evening another cold front is progged to push through our region. While the parent low moves across the Northern plains to our north. Some moisture may be accompanying the cold front effectively ending the critical to near critical conditions that evening. While the front may not produce any showers there looks to be enough moisture to potential allowing overnight recoveries to reach 60 percent and above for most of the area. Friday may have fire weather conditions but there is another system that may impact our region sometime Friday evening and through the weekend. So far the global models are hinting at finally getting some rain but we shall see how the models trend.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 520 PM MDT Sun Jun 14 2026

Cloud cover is beginning to gradually break up over the High Plains this afternoon, and expect this to continue through the evening. Overall winds will be light overnight (except RWL and possibly LAR), but the direction may become variable at times. There is a slight chance (20 to 30%) for a flight category reduction due to low CIGs at CYS and SNY, but this was too low to add to the TAF at this time. Look for mostly clear skies on Monday. Gusty northwest winds will spread across the area between late morning and mid afternoon. Expect gusts of 20 to 35 knots.

CYS WATCHES/WARNINGS/ADVISORIES

WY...Red Flag Warning from noon to 9 PM MDT Monday for WYZ417-418- 432-433. Fire Weather Watch from Tuesday afternoon through Wednesday evening for WYZ417-418-430>433. NE...Red Flag Warning from noon to 9 PM MDT Monday for NEZ434>437. Fire Weather Watch from Tuesday afternoon through Wednesday evening for NEZ434>437.