textproduct: Grand Junction

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- Near-record heat is expected to continue for western Colorado and eastern Utah through tomorrow.

- Daytime highs for the lower elevations are forecast to run between 100F and 106F. Consider limiting time outdoors during the heat of the day.

- Moisture returns to the region this week. Afternoon storms are possible each day with coverage increasing as the week progresses.

UPDATE

Issued at 1153 PM MDT Sun Jul 12 2026

Temperatures have decreased to below Heat Advisory criteria in southwestern Colorado, and Heat Warning criteria in southeastern Utah, so these products have been allowed to expire. Heat Warnings remain in effect through midnight tomorrow night.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 543 PM MDT Sun Jul 12 2026

VFR conditions are expected to prevail through the TAF period. Storm activity is beginning to dissipate for the evening which will lighten up some of our winds. Winds are expected to resume terrain driven patterns overnight, with some TAF sites seeing higher sustained wind speeds and gustiness during that time period. Gusts are not expected to be impactful to aviation operations, but nonetheless worth a mention. Shower and storm activity will redevelop come Monday afternoon, particularly in the Four Corners area, but cannot rule out some activity up towards KGUC. Gusty outflows will be the main concern with those. Lastly, fires burning southeast of KHDN could possibly introduce smoke into that terminal. Therefore, chose to mention it in the TAF through Monday morning.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1228 AM MDT Mon Jul 13 2026

A few gusty winds will continue overnight but shouldn't pose any aviation concerns. Showers and storms will develop again this afternoon and evening over southern portions of the forecast area. As of now, KDRO and KTEX have the best chances to see convection and included it in TAFs.

GJT WATCHES/WARNINGS/ADVISORIES

CO...Extreme Heat Warning until midnight MDT tonight for COZ001-002- 006-007. UT...Extreme Heat Warning until midnight MDT tonight for UTZ024-027.

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