267
FXUS65 KGJT 272335
AFDGJT
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
535 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 /00Z TAFS THROUGH 00Z WEDNESDAY/
ISSUED AT 530 PM MDT MON APR 27 2026
WIDESPREAD SHOWERS, WITH A FEW EMBEDDED THUNDERSTORMS, CONTINUE
TO STREAM OVER THE REGION THIS EVENING. THESE SHOWERS ARE
CAPABLE OF SOME BRIEF HEAVY RAIN, SNOW AT HIGHER ELEVATIONS,
AND WITH GUSTY, ERRATIC WINDS. WHEN SHOWERS IMPACT A TERMINAL,
CEILINGS WILL LIKELY DROP BELOW BREAKPOINTS FOR SHORT PERIOD OF
TIME, ALONG WITH REDUCTION TO MVFR/IFR CONDITIONS. ACTIVITY WILL
TAPER AFTER SUNSET, WITH CLEARING FROM SOUTHWEST TO NORTHEAST.
CLOUDS AND SHOWERS LINGER LONGEST ALONG THE CENTRAL, NORTHERN
DIVIDE. SOUTHERLY TO SOUTHWESTERLY WINDS DOMINATE SOUTH OF
I-70, WITH NORTHERLY TO NORTHWESTERLY WINDS TO THE NORTH. WINDS
WILL BECOME GENERALLY LIGHT AND TERRAIN DRIVEN AFTER 06Z. LOOK
FOR WESTERLY WINDS TO PICK UP AGAIN TOMORROW AFTERNOON, GUSTING
20-25 KNOTS. VFR CONDITIONS WILL PREVAIL.
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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