170
FXUS65 KCYS 310540
AFDCYS
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1040 PM MST FRI JAN 30 2026
KEY MESSAGES
- LOCALLY STRONG GUSTY WINDS POSSIBLE OVER THE WIND PRONE AREAS
OF SOUTHEAST WYOMING LATE TONIGHT AND SATURDAY MORNING. GUSTS
OVER 50 MPH ARE EXPECTED.
- MOSTLY QUIET WEATHER EXPECTED NEXT WEEK, WITH A COLD FRONT
PUSHING THROUGH TUESDAY AND DROPPING TEMPERATURES BACK INTO
THE 40S AND 50S.
SHORT TERM /THROUGH SATURDAY NIGHT/
ISSUED AT 151 PM MST FRI JAN 30 2026
THERE IS A LOW PRESSURE SYSTEM THAT IS MOVING ACROSS THE CANADIAN
PROVIDENCES TONIGHT INTO SATURDAY. THIS SYSTEM WILL HELP PUSH THE
ARCTIC HIGH FURTHER EAST AND ALLOW FOR WARMER TEMPERATURES TO PUSH
INTO THE NEBRASKA PANHANDLE AS THE UPPER LEVEL RIDGE REGAINS CONTROL
OF THE INTERMOUNTAIN WEST. THIS AFTERNOON THERE IS SOME WARM AIR
ADVECTION MOVING OVER THE PANHANDLE INCREASING THE SYNOPTIC LIFT AND
CREATING THE LIGHT STRATIFORM SNOWFALL WE ARE CURRENTLY SEEING
ACROSS THE NEBRASKA PANHANDLE. ANOTHER FRONT IS PROGGED TO MOVE
ACROSS THE REGION ALLOWING FOR INCREASED CHANCES OF LIGHT SNOWFALL
TO CONTINUE THROUGH THE OVERNIGHT HOURS ACROSS THE PANHANDLE.
ACCUMULATIONS LOOK MINUSCULE TO MAYBE GET A LIGHT DUSTING
DURING THE OVERNIGHT HOURS. THE OVERNIGHT TEMPERATURES LOOK TO
DROP INTO THE TEENS AND LOW TWENTIES ACROSS THE PANHANDLE WITH
MID TO HIGH TWENTIES ACROSS SOUTHEAST WYOMING. DUE TO THE MOSTLY
CLOUDY TO OVERCAST CLOUD COVER, THE OVERNIGHT TEMPERATURES MAY
BE WARMER THAN FORECAST AS THE LOW TO MID LEVEL CLOUDS TRAP AND
REFLECT THE LONGWAVE RADIATIONAL WAVES EMITTED BY THE EARTH'S
SURFACE AT NIGHT. FOLLOWING THE FRONT, WARM AIR WILL GRADUALLY
PUSH EAST RAISING SURFACE TEMPERATURES INTO THE 50'S FOR THE
LOWER ELEVATIONS EAST OF I-25 AND A LITTLE BIT COOLER OF MID TO
UPPER 40'S WEST OF I-25 IN THE HIGHER ELEVATIONS. AS THE RIDGE
AND WARMER AIR REALLY START TO PUSH EAST THE SUBSIDENT FLOW
CAUSED BY THE RIDGE WILL HELP CLEAR OUT THE SKY AND THE SNOWFALL
SHOULD END AROUND EARLY TO MID MORNING FOR MOST AREAS IN THE
PANHANDLE. OVERNIGHT TEMPERATURES FOR THE OVERNIGHT PERIOD LOOK
TO FALL INTO THE MID TO UPPER TWENTIES FOR SATURDAY NIGHT.
LONG TERM /SUNDAY THROUGH FRIDAY/
ISSUED AT 151 PM MST FRI JAN 30 2026
NOT MANY VALUE ADDED CHANGES WILL BE FORTHCOMING THIS AFTERNOON AS
THE LONG TERM PERIOD APPEARS TO BE GENERALLY QUIET. THE PERIOD DOES
BEGIN WITH A HIGHLY AMPLIFIED UPPER PATTERN IN PLACE CHARACTERIZED
BY STOUT UPPER RIDGING OVER THE THE WESTERN CONUS AND SUBSEQUENT
DOWNSTREAM TROUGHING OVER THE EAST. GUIDANCE CONTINUES TO SHOW HIGH
TEMPERATURES BOTH SUNDAY AND MONDAY 10 DEGREES OR MORE ABOVE THE
CLIMATOLOGICAL AVERAGE.
THE RIDGE WILL BE KNOCKED DOWN FOR A FEW DAYS(TUESDAY AND WEDNESDAY)
BEHIND A COLD FRONT FORECAST TO MOVE THROUGH EARLY TUESDAY. THE COLD
FRONT ITSELF IS RATHER NON DESCRIPT AND WITH LITTLE MOISTURE TO WORK
WITH, WILL LIKELY ONLY PRODUCE A LITTLE LIGHT SNOW IN THE HIGHER
TERRAIN AREAS. HIGH TEMPERATURES ACROSS THE FORECAST AREA ON TUESDAY
AND WEDNESDAY WILL STILL MAKE IT INTO THE 40S TO LOWER 50S IN THE
LOWER ELEVATIONS WITH 20S AND 30S IN THE HIGH COUNTRY.
THE UPPER RIDGE REBUILDS QUICKLY OVER THE FOUR CORNERS BEHIND THIS
FRONT. HEIGHTS ON THURSDAY SUPPORT HIGH TEMPERATURES IN THE 50S AND
POSSIBLY LOWER 60S THE LOWER ELEVATION AREAS ON THURSDAY WITH ONLY
SLIGHTLY COOLER READINGS ON FRIDAY AS A COLD FRONT APPROACHES.
WHILE THE PERIOD DOES APPEAR TO BE QUIET, THE ONE EXCEPTION MAY BE
FRIDAY WITH SOME OF THE LONGER RANGE GUIDANCE SUGGESTING SOME STRONG
WINDS ASSOCIATED WITH THE AFOREMENTIONED COLD FRONT. IMPRESSIVE H7
JET ASSOCIATED WITH AN UPPER LOW DIVING INTO THE GREAT LAKES COULD
HELP GENERATE GUSTY WINDS BUT AS WE ARE TAKING A WEEK OUT, A WAIT
AND SEE APPROACH WILL BE TAKEN.
AVIATION /06Z TAFS THROUGH 06Z SUNDAY/
ISSUED AT 1040 PM MST FRI JAN 30 2026
FREEZING FOG HAS MOVED IN ACROSS SOUTHEAST WYOMING, IMPACTING KCYS
WITH VLIFR CONDITIONS. EXPECT THIS TO CONTINUE OVER THE NEXT SEVERAL
HOURS WITH FZFG DIMINISHING AROUND 09Z. ELSEWHERE, LOW CIGS OF LESS
THAN 2,000 FEET HAVE BEEN PLAGUING THE TERMINALS ACROSS THE NEBRASKA
PANHANDLE ALL AFTERNOON AND EVENING. CIGS SHOULD BEGIN TO LIFT
AROUND 09Z AS A SYSTEM, THAT BROUGHT LIGHT SNOW EARLIER TODAY, MOVES
OUT OF THE AREA. THEREAFTER, VFR CONDITIONS WILL RETURN AND PREVAIL
ACROSS ALL TERMINALS FOR THE REMAINDER OF THIS TAF PERIOD. WINDS IN
GENERAL WILL POSE LITTLE TO NO THREAT TO AVIATION OPERATIONS;
HOWEVER, GUSTY WINDS OF 20-30 KNOTS RAMP UP TONIGHT INTO SATURDAY
MORNING. THIS IS SHORT-LIVED AS WINDS WILL DECREASE TO LESS THAN
10 KNOTS ACROSS ALL TERMINALS BY 02Z SUNDAY.
CYS WATCHES/WARNINGS/ADVISORIES
WY...FREEZING FOG ADVISORY UNTIL 2 AM MST SATURDAY FOR WYZ117>119.
NE...NONE.
SHORT TERM...MM
LONG TERM...WFOCYS
AVIATION...RZ
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