113
FXUS65 KGJT 271946
AFDGJT
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
146 PM MDT MON APR 27 2026
KEY MESSAGES
- VALLEY RAIN AND MOUNTAIN SNOW SHOWERS ARE EXPECTED THROUGH
TOMORROW EVENING. WINTER DRIVING CONDITIONS ARE POSSIBLE
TONIGHT AND TOMORROW MORNING, MAINLY AT PASS LEVEL IN THE
NORTHERN AND CENTRAL MOUNTAINS.
- BELOW FREEZING TEMPERATURES ARE POSSIBLE IN SOME SOUTHWESTERN
COLORADO VALLEYS WHERE A FREEZE WARNING IS IN EFFECT FROM
MIDNIGHT TONIGHT THROUGH 9 AM TOMORROW.
- UNSETTLED CONDITIONS PAUSE BRIEFLY MID-WEEK, BUT ANOTHER
STRONGER SYSTEM WORKS ACROSS THE SOUTHWEST WITH POTENTIAL
IMPACTS LATE WEEK.
DISCUSSION
ISSUED AT 1252 PM MDT MON APR 27 2026
CONTINUED UNSETTLED WEATHER:
PERIODS OF UNSETTLED WEATHER ARE POSSIBLE THROUGHOUT THE WEEK.
THIS AFTERNOON LINGERING MOISTURE, PIECES OF ENERGY WITHIN THE
FLOW, AND INSTABILITY IS SUPPORTING WIDESPREAD SHOWERS AND SOME
THUNDERSTORMS. A SHORTWAVE MOVES THROUGH OUR AREA OVERNIGHT
TONIGHT, BRINGING RAIN AND HIGH ELEVATION SNOW, PRIMARILY NORTH
OF I-70. THE GREATEST SNOW ACCUMULATIONS ARE EXPECTED IN THE
NORTHERN MOUNTAINS, WHERE MINOR IMPACTS ON MOUNTAIN PASSES ARE
POSSIBLE THROUGH TOMORROW MORNING. SOME MOUNTAIN SNOW IS
POSSIBLE AFTER THIS SHORTWAVE PASSES, BUT A DECREASE IN
ATMOSPHERIC MOISTURE WILL KEEP SNOWFALL LIGHT. MOISTURE RETURNS
TO THE SOUTHERN HALF OF THE CWA LATER THIS WEEK AS A LOW TRACKS
TO OUR SOUTH. MODELS ARE SUGGESTING THE POTENTIAL FOR
ACCUMULATING MOUNTAIN SNOW, MOSTLY IN THE SOUTHERN MOUNTAINS,
BUT INCREASING TEMPERATURES AND UNCERTAINTY REGARDING THE TRACK
OF THE LOW MEANS CONFIDENCE IS NOT CURRENTLY HIGH REGARDING ANY
DETAILS.
ABOVE NORMAL TEMPERATURES BY THE WEEKEND:
INCREASED DAYTIME CLOUD COVER THE CURRENT SYNOPTIC SETUP ARE
KEEPING HIGH TEMPERATURES AROUND 5 TO 10 DEGREES BELOW AVERAGE
TODAY AND TOMORROW. TONIGHT DRIER AIR AND REDUCED CLOUD COVER
NEAR THE FOUR CORNERS REGION IS EXPECTED TO DROP LOW
TEMPERATURES BELOW FREEZING IN SOME SOUTHWESTERN COLORADO VALLEY
AREAS. SO, A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT TONIGHT
TO 9 AM TUESDAY FOR THE ANIMAS RIVER BASIN AND SAN JUAN RIVER
BASIN. TEMPERATURES WILL INCREASE TO NEAR NORMAL BEGINNING
WEDNESDAY, AND INCREASE TO ABOVE NORMAL BY SATURDAY.
AVIATION /18Z TAFS THROUGH 18Z TUESDAY/
ISSUED AT 1143 AM MDT MON APR 27 2026
BREAKPOINT CEILING CONDITIONS WILL CONTINUE ACROSS THE REGION THIS
AFTERNOON, AS SCATTERED SHOWERS AND THUNDERSTORMS IMPACT THE
TERMINALS. GUSTY WINDS AND SMALL HAIL CAN BE EXPECTED AROUND
SHOWERS TODAY. CONDITIONS WILL IMPROVE FOR SOUTHWEST CO THIS
AFTERNOON AND EVENING, BUT UNSETTLED WEATHER WILL CONTINUE ALONG
THE DIVIDE AND ACROSS NORTHEAST UT AND NORTHWEST CO INTO
TUESDAY. LOW CEILINGS AND SHOWERS WILL CONTINUE TO IMPACT
AVIATORS INTO TUESDAY MORNING.
GJT WATCHES/WARNINGS/ADVISORIES
CO...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM MDT TUESDAY FOR
COZ022-023.
UT...NONE.
DISCUSSION...TGJT
AVIATION...TGJT
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