textproduct: Grand Junction

KEY MESSAGES

- Widespread Red Flag Warnings and Fire Weather Watches continue each day through Wednesday.

- Each afternoon gusts above 25 mph are expected for most locations, and gusts around 25-35 mph will be common. The windiest day will be Tuesday and those gusts could exceed 45 mph for some spots.

- High-end fire weather conditions are likely for portions of the region on Tuesday due to very low relative humidity and strong winds.

DISCUSSION

Issued at 1139 AM MDT Sun Jun 7 2026

THE PATTERN:

Several low pressure systems will move through the Pacific Northwest and Northern Rockies through mid week. Winds increase with each system. The surface conditions are dry and this along with gusty winds will lead to critical fire weather each afternoon through most of the week. The increase flow does advect some midlevel moisture into our area that may support isolated showers and storms that will produce gusty winds with little rainfall. Today the chances for afternoon showers is mainly northeast Utah and far northwest Colorado, and tomorrow those chances are along the Divide. After these systems pass to our north flow generally stays out of the west, and is dry. Temperatures are expected to remain near to slightly above average through the week.

CRITICAL FIRE WEATHER:

Fire weather is a concern each afternoon through Thursday where fuels are deemed critical. The dry surface conditions will result in relative humidity dropping into the teens and single digits. Wind gusts will vary each day, but gusts above 25 mph are expected for most locations, and gusts around 25-35 mph will be common. The windiest day will be Tuesday and those gusts could exceed 45 mph for some spots. Isolated dry thunderstorms are possible at times for the next several days, which increases the potential for new fire starts.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 544 AM MDT Sun Jun 7 2026

Winds are mostly light and terrain driven at the moment, but over the next few hours gusts will begin at many sites. During the afternoon and early evening gusts 20 to 30 kts are forecast across the region. Gusty winds are expected to persist until around 02Z or 03Z. Mid and high level cloud cover is moving in from the west, and will increase in coverage throughout the day. VFR conditions are expected to prevail.

FIRE WEATHER

Issued at 1139 AM MDT Sun Jun 7 2026

A long stretch of critical fire weather persists through Thursday. This is being prompted by strong winds and dry surface conditions beneath a strong sustained southwesterly flow aloft. Through Monday, winds will gust 25-35 mph with isolated values to 40 mph possible and relative humidities will be near or in the single digits. Fire zones with critical fuels have been placed under Red Flag Warnings or Fire Weather Watches, with upgrades likely for the watches in subsequent forecast packages.

Isolated dry thunderstorms are possible at times for the next several days, which increases the potential for new fire starts. Critical fire weather amplifies on Tuesday, with increased concerns for high-end conditions due to the stronger winds beneath a tightening pressure gradient and single digit relative humidities. The majority of the region will see gusts of at least 35 mph, however gusts could reach as high as 50 mph. Multiple forecast runs have been consistently painting these stronger winds, leading to increasing confidence in the high-end nature of Tuesday's fire weather potential. Critical fire weather likely persists for portions of the region on Wednesday and Thursday as well.

GJT WATCHES/WARNINGS/ADVISORIES

CO...Red Flag Warning until 10 PM MDT this evening for COZ200-202- 203-205-207-290>293. Red Flag Warning from 10 AM to 10 PM MDT Monday for COZ200-202- 203-205-207-290>293. Red Flag Warning from 10 AM to 10 PM MDT Tuesday for COZ200- 202-203-205-207-290>293. Fire Weather Watch from Wednesday morning through Wednesday evening for COZ200-202-203-205-207-290>293. UT...Red Flag Warning until 10 PM MDT this evening for UTZ486-487- 490-491. Red Flag Warning from 10 AM to 10 PM MDT Monday for UTZ486-487- 490-491. Red Flag Warning from 10 AM to 10 PM MDT Tuesday for UTZ486- 487-490-491. Fire Weather Watch from Wednesday morning through Wednesday evening for UTZ486-487-490-491.