Marine Weather and Tide Forecast for Pierce, CO

DISCUSSION /Through Tuesday/
Issued at 110 AM MDT Wed Jun 10 2026

A cold front has pushed through nearly the entire forecast area early this morning, bringing briefly gusty winds of about 20 to 30 mph. The latest radar imagery shows isolated showers ongoing across the eastern plains. The front will have a minimal effect on today's high temperatures with most locations reaching the mid to upper 80s on the plains. We are more confident that today's high temperatures will not be affected by any clouds or a shear zone, such as what occurred on Tuesday. The air at mid-levels should be much drier meaning there will be fewer clouds overhead. There will also be subsidence in place during the day today leading to a higher confidence of downslope winds occurring for the area.

Critical fire weather conditions are likely across the plains east of I-25 (except for Washington County) where a Red Flag Warning is in place. See the Fire Weather Discussion for more details. Cross sections show a strong jet overhead with cross barrier flow and winds of about 35 kts in the 500 to 700 mb layer. This will lead to wind gusts as high as 50 to 60 mph in the mountains during the day.
Wind gusts for the plains of 25 to 40 mph are likely, especially for wind-prone areas near I-25 north of Fort Collins and our northern tier of counties bordering Wyoming.

The well-advertised cold front tonight continues to look quite potent and thus we have nudged wind gusts higher. In general, winds should gust between 35 and 45 mph behind the front as it quickly moves through the forecast area. Some gusts across the eastern plains could even reach as high as 50 mph into early Thursday morning. There is a very low chance (10-20%) for showers/thunderstorms across the far northeastern plains this evening and overnight as the front moves through. We have slightly nudged down Thursday's high temperatures into the mid to upper 70s for the plains given the latest model guidance.

Temperatures will rebound on Friday and Saturday with highs across the plains in the upper 80s to mid 90s and zonal flow aloft. Models continue to show that the next decent chance for any measurable precipitation could come late on Saturday with a trough moving in from Canada. More widespread precipitation is becoming increasingly likely on Sunday as the trough strengthens overhead and a low pressure system dives south into Montana and Wyoming. Temperatures on Sunday will likely stay in the low to mid 70s.

Ensembles show a decent spread in high temperatures starting on Monday. For now, the majority of model guidance keeps the trough and some precipitation chances lingering over the area and thus keeping high temperatures in the 70s on Monday and Tuesday for the plains.
As the trough moves out on Wednesday, high pressure will build in and center to our southwest. This will return us to above average temperatures towards the end of next week.

AVIATION /06Z TAFS through 06Z Thursday/
Issued at 1149 PM MDT Tue Jun 9 2026

Weak cool front is bringing a surge of N-NE winds to start this period, but that will quickly weaken with winds transitioning to more southerly flow in its wake by 09Z. Then winds should turn a little more SW toward 15Z before stronger mixing occurs. There is modest confidence in the timing of mixing and arrival of gusty W-NW winds. Given stronger subsidence, there's also greater confidence that we will see those winds versus what happened Tuesday. The most likely time for the wind increase would be between 16Z-18Z at BJC, 16Z-18Z at APA, and 18Z-20Z at DEN. After winds increase, most gusts should range from 26-32 kts.

A cold front will move across the terminals Wednesday night roughly between 03-05Z Thursday. This will bring gusty northerly winds.

VFR conditions will persist with no precipitation expected. Any post-frontal storms through 09Z Wednesday should stay east of KDEN.

FIRE WEATHER
Issued at 110 AM MDT Wed Jun 10 2026

Critical fire weather conditions are expected for the plains today. We have kept the Red Flag Warning in place from 12pm to 8pm today for the plains east of I-25 and upgraded Lincoln County and eastern Elbert County to be included in this Red Flag Warning.
Winds could gust between 30 and 40 mph during the day with the strongest wind gusts along the Wyoming border and northern I-25 corridor. Relative humidity will drop into the lower teens this afternoon. Winds in Washington County will be below Red Flag Warning criteria for today, so we have canceled the Fire Weather Watch that was previously in place. Some spotty fire weather conditions are possible on Thursday and Friday, but will be limited in duration and scope, especially on Friday.

BOU WATCHES/WARNINGS/ADVISORIES
Red Flag Warning from noon today to 8 PM MDT this evening for COZ240>248-250-251.