349  
FXUS65 KCYS 131233  
AFDCYS  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE CHEYENNE WY  
533 AM MST THU FEB 13 2025  
   
KEY MESSAGES
 
 
- BITTERLY COLD WIND CHILLS CURRENTLY IN PLACE WILL COME TO AN  
END THIS MORNING.  
 
- STRONG WINDS AND AREAS OF BLOWING SNOW WILL CONTINUE IN THE  
WIND PRONE AREAS THROUGH THE MORNING TODAY. AFTER A POTENTIAL  
LULL, SOUTHWEST WINDS INCREASE AGAIN ACROSS CARBON COUNTY THIS  
AFTERNOON INTO FRIDAY MORNING.  
 
- HEAVY MOUNTAIN SNOWFALL RETURNS IN FORCE THURSDAY NIGHT AND  
WILL CONTINUE INTO THE WEEKEND. THE LOWER ELEVATIONS WILL SEE  
A CHANCE FOR LIGHT ACCUMULATING SNOW ON SATURDAY.  
 
- ACTIVE PATTERN CONTINUES THROUGH MID-WEEK WITH MULTIPLE  
ROUNDS OF SNOW, FRIGID TEMPERATURES, AND HIGH WINDS POSSIBLE.  
 

 
   
UPDATE
 
 
ISSUED AT 531 AM MST THU FEB 13 2025  
 
WIND SPEEDS HAVE INCREASED OVER THE I-80 SUMMIT IN THE LAST  
HOUR AND A HIGH WIND WARNING HAS BEEN ISSUED. THIS IS NOT  
EXPECTED TO BE VERY LONG DURATION, AND IS SCHEDULED TO EXPIRE AT  
18Z TODAY. SLICK CONDITIONS ARE ALSO EXPECTED IN THIS AREA DUE  
TO THE BLOWING SNOW.  
 

 
   
SHORT TERM /THROUGH FRIDAY NIGHT/
 
 
ISSUED AT 440 AM MST THU FEB 13 2025  
 
ACTIVE WEATHER WILL CONTINUE OVER THE NEXT SEVERAL DAYS AS A STRONG  
PACIFIC TROUGH MOVES INLAND. CURRENTLY, GOES SATELLITE IMAGERY SHOWS  
MAINLY CLEAR SKIES OVER THE AREA AS A VERY DRY AIRMASS MOVES  
OVERHEAD IN THE WAKE OF YESTERDAY'S STORM SYSTEM. WNW FLOW BEHIND  
THE DEPARTING TROUGH IS PRODUCING STRONG WINDS OVER THE WIND PRONE  
AREAS OF SOUTHEAST WYOMING THIS MORNING. 65+ MPH GUSTS HAVE BEEN  
OBSERVED NEAR ARLINGTON, MUDDY GAP, AND BORDEAUX. SO FAR, THE I-80  
SUMMIT HAS REMAINED BELOW 55 MPH, AND WITH LOW CONFIDENCE IS THIS  
INCREASING, DECIDED TO CONTINUE THE WATCH THERE. THE GUSTY WINDS ARE  
ALSO PRODUCING AREAS OF BLOWING SNOW AND SLICK TRAVEL CONDITIONS.  
VISIBILITY DROPS TO NEAR 1/4 MILE WERE OBSERVED WHEN WINDS FIRST  
PICKED UP, BUT SINCE RECENT SNOWFALL TOTALS WERE FAIRLY LIGHT, THERE  
ISN'T THAT MUCH SNOW TO BLOW AROUND. TO THE EAST, CALM WINDS AND  
CLEAR SKIES ARE LEADING TO TEMPERATURE STARTING THE DAY BELOW ZERO.  
COLD WEATHER ADVISORIES ARE ON TRACK FOR MOST OF THE AREA, THOUGH  
THE VALLEYS OF CARBON AND ALBANY COUNTIES ARE NOT QUITE AS COLD AS  
INITIALLY FORECAST. THE WINDS THIS MORNING ARE LUCKILY COMING WITH  
FAIRLY STRONG WARM AIR ADVECTION, WHICH IS EXPECTED TO MIX DOWN TO  
THE SURFACE ACROSS THE ENTIRE AREA AS THE ARCTIC HIGH PRESSURE  
RETREATS BACK TO THE EAST.  
 
THE CREST OF THE TRANSIENT RIDGE WILL MOVE OVER THE AREA AROUND  
MIDDAY TODAY, AFTER WHICH TIME THE FLOW ALOFT WILL TRANSITION TO  
SOUTHWEST AND CLOUDS WILL BEGIN TO INCREASE. MODEL GUIDANCE REMAINS  
CONSISTENT WITH VERY STRONG SOUTHWEST 700-MB WINDS EXTENDING ACROSS  
CARBON AND INTO CONVERSE COUNTY THIS AFTERNOON AND EVENING. LREF  
MEDIAN 700-MB WINDS REMAIN BETWEEN 55 AND 60 KNOTS OVER RAWLINS,  
WITH MODELS ALSO SHOWING FAIRLY GOOD SUBSIDENCE OVER CARBON COUNTY  
AND THE NORTHERN LARAMIE RANGE. TOGETHER, THIS BOOSTS CONFIDENCE  
ENOUGH TO UPGRADE ALL OF CENTRAL AND NORTHERN CARBON COUNTY TO A  
HIGH WIND WARNING. THERE WILL BE POTENTIAL FOR A FEW 75+ MPH GUSTS,  
PARTICULARLY IN FAR NORTHERN CARBON COUNTY AND NEAR ELK MOUNTAIN TO  
WALCOTT JUNCTION. UNCERTAINTY IS A LITTLE BIT HIGHER IN CONVERSE  
COUNTY. MODELS SHOW A FAIRLY GOOD MOUNTAIN WAVE SIGNAL, BUT WITH THE  
SURFACE TROUGH PUSHED RIGHT UP AGAINST THE LARAMIE RANGE, AND A  
MODEST SIGNAL FOR ASCENT OVER I-25 BETWEEN DOUGLAS AND GLENDO. THE  
SIGNAL FOR DESCENT IS MUCH MORE CLEAR IN THE WESTERN PART OF THE  
COUNTY NEAR GLENROCK, AND IN-HOUSE GUIDANCE SHOWS ABOUT A 40%  
PROBABILITY OF HIGH WINDS THERE. WITH LIGHT WINDS POSSIBLE IN THE  
EASTERN PART OF THE COUNTY AND LOW TO MEDIUM CONFIDENCE FOR THE  
WESTERN PART, DECIDED TO CONTINUE THE HIGH WIND WATCH FOR THE NEXT  
SHIFT TO TAKE ANOTHER LOOK BEFORE UPGRADING. FURTHER EAST, THE  
SIGNIFICANT SOUTHERLY COMPONENT OF THIS EVENT AND SURFACE TROUGH  
LOCATED WEST OF I-25 WILL LIMIT THE HIGH WIND POTENTIAL. ONE AREA  
THAT NEEDS A CLOSER LOOK WILL BE THE I-80 SUMMIT, WHERE 700-MB WINDS  
OVER 50 KNOTS MAY ALIGN WITH DESCENDING MOTION FOR A FEW HOURS  
BETWEEN LATE THIS EVENING AND MIDDAY FRIDAY. RIGHT NOW, THE  
PROBABILITY PEAKS AROUND 40%, SO DECIDED TO HOLD OFF ON EXTENDING  
THE WATCH OR EXPANDING THE WARNING.  
 
THURSDAY AFTERNOON, WE WILL SEE MOISTURE RAPIDLY INCREASE FROM THE  
SOUTHWEST AS THE NEXT PACIFIC TROUGH GETS CLOSER. DEEP MOISTURE WILL  
LEAD TO NEARLY SATURATED SOUNDINGS BETWEEN 700-MB AND 200-MB  
STARTING THIS AFTERNOON. STRONG SOUTHWEST WINDS WILL PROVIDE  
FAVORABLE UPSLOPE FLOW FOR THE SIERRA MADRE RANGE IN PARTICULAR,  
LEADING TO VERY HEAVY SNOWFALL RATES ANTICIPATED OVERNIGHT. THE  
SOUTHWESTERLY DIRECTION IS NOT AS FAVORABLE FOR THE SNOWY RANGE, BUT  
LIGHT TO MODERATE SNOWFALL IS STILL EXPECTED TONIGHT INTO FRIDAY  
MORNING. WHILE THIS EVENT WILL STRONGLY FAVOR THE MOUNTAINS WITH  
LITTLE ORGANIZED LIFT OUTSIDE OF THE IMPRESSIVE OROGRAPHIC  
COMPONENT, LIGHT TO MODERATE SNOW WILL ALSO EXTEND TO OTHER PARTS OF  
CARBON COUNTY. ACCUMULATIONS OF 1 TO 3 INCHES OR SO CAN BE EXPECTED  
IN SPILLOVER TO ADJACENT ZONES INCLUDING ARLINGTON/ELK MOUNTAIN,  
RAWLINS (PARTICULARLY JUST TO THE WEST), AND MUDDY GAP.  
PROBABILITIES FOR 1" OR MORE OF SNOW ARE AROUND 50 TO 70% FOR THE  
HIGHWAY IN THE AFOREMENTIONED AREAS.  
 
FRIDAY LOOKS LIKE A TRANSITION DAY AS THE AXIS OF THIS SLOPPY  
PACIFIC TROUGH MOVES OVERHEAD. THERE IS A BIT OF UNCERTAINTY  
REGARDING THE POTENTIAL FOR A LULL IN MOUNTAIN SNOWFALL ON FRIDAY.  
LREF MEDIAN 500-MB RH DROPS FROM 95%+ OVERNIGHT TO AROUND 70% FRIDAY  
AFTERNOON BEFORE INCREASING AGAIN LATE FRIDAY EVENING. HOWEVER, WE  
WILL SEE SOME MESSY VORTICITY ADVECTION ALOFT DURING THIS PERIOD  
PROVIDING WEAK SYNOPTIC LIFT, WHILE FULL TROPOSPHERIC LAPSE RATES  
REMAIN QUITE STEEP. RESULTING INSTABILITY MAY LEAD TO A PERIOD OF  
SHOWERY TYPE SNOW IN BETWEEN THE TWO MAIN PHASES OF SYNOPTIC  
SNOWFALL. WITH THIS POTENTIAL, DECIDED AGAINST SPLITTING THE WINTER  
WEATHER HAZARD FOR THE MOUNTAINS, SINCE THERE IS LOW CONFIDENCE IN A  
SIGNIFICANT LULL ACTUALLY OCCURRING. BY LATE FRIDAY EVENING, THE  
BACK EDGE OF THE TROUGH WILL START TO PUSH INTO THE AREA,  
RETURNING MID-LEVEL RH TO NEAR 100% AND THUS TURNING THE FAUCET  
OF MOUNTAIN SNOWFALL BACK ON. THIS PHASE WILL FEATURE NORTHWEST  
FLOW ALOFT, WHICH WILL BE MORE FAVORABLE TO THE SNOWY RANGE INTO  
THE DAYTIME HOURS SATURDAY. A WINTER STORM WARNING WAS ISSUED  
FOR THE SIERRA MADRE RANGE DUE TO HIGH CONFIDENCE IN HITTING  
WARNING CRITERIA IN JUST THE FIRST PART OF THE EVENT TONIGHT.  
WHILE THE SNOWY RANGE MAY HIT WARNING CRITERIA BY SUNDAY  
MORNING, NEITHER PHASE (AT THIS TIME) LOOKS TO BRING VERY HEAVY  
SNOWFALL RATES. FACTORING IN THE SEPARATION BETWEEN THE TWO MAIN  
ACCUMULATION PERIODS, A WINTER WEATHER ADVISORY SEEMED BETTER  
SUITED.  
 

 
   
LONG TERM /SATURDAY THROUGH WEDNESDAY/
 
 
ISSUED AT 440 AM MST THU FEB 13 2025  
 
AN ACTIVE WEEKEND AND WEEK IS SETTING UP FOR SOUTHEAST WYOMING AND  
WESTERN NEBRASKA WITH MULTIPLE SNOW-PRODUCING SYSTEMS MOVING IN, THE  
POTENTIAL FOR ARCTIC AIR ONCE MORE, AND HIGH WINDS RETURNING TO THE  
REGION. TO BEGIN THE WEEKEND, ON SATURDAY AN UPPER-LEVEL, SLIGHTLY  
POSITIVELY TILTED TROUGH WILL SLOWLY PUSH THROUGH THE INTERMOUNTAIN  
WEST WITH ONLY MODEST 500MB CYCLONIC VORTICITY ADVECTION OVERHEAD. A  
STOUT SURFACE TROUGH WILL MOVE THROUGH SATURDAY MORNING INTO THE  
AFTERNOON HOURS, WITH INCREASING WINDS AT 700MB DUE TO STRENGTHENING  
HEIGHT GRADIENTS AS A LOW OVER CANADA MOVES SLIGHTLY FURTHER SOUTH.  
STRONG FRONTOGENESIS WILL BE ASSOCIATED WITH THIS TROUGH AS A COLD  
FRONT PUSHES SOUTH. AS A RESULT, WIDESPREAD PRECIPITATION CHANCES  
ARE EXPECTED ACROSS THE CWA, ESPECIALLY AS MOISTURE ALONG THE 295K  
ISENTROPIC SURFACE INCREASES THROUGHOUT THE DAY. CURRENTLY, LONG  
RANGE MODELS ARE IN AGREEMENT ON THE COLDEST OF THE 700MB AIR BEHIND  
THE FRONT REMAINING OFF TO THE NORTH AND EAST, BUT THIS CONFIDENCE  
DECREASES THROUGHOUT THE FORECAST PERIOD. COLD AIR IS EXPECTED TO  
REMAIN ACROSS THE REGION ON SATURDAY, ESPECIALLY ACROSS THE NORTHERN  
ZONES AND THE WESTERN NEBRASKA PANHANDLE AS THE COLDER 700MB AIR  
REMAINS FIXED OVERHEAD OF THESE AREAS. BETWEEN 1 TO 2 INCHES OF SNOW  
ACCUMULATION IS POSSIBLE ACROSS THE LOWER-ELEVATIONS WITH THE  
PASSAGE OF THIS FRONT, WHILE SOUTHWESTERLY 700MB FLOW FAVOR THE  
SIERRA MADRES OVER THE SNOWIES. THE HIGHER TERRAIN COULD SEE BETWEEN  
6 TO 8 INCHES OF SNOW ON SATURDAY INTO EARLY SUNDAY MORNING. THIS  
ACCUMULATION WILL BE ADDITIONAL SNOWFALL ON TOP OF WHAT FALLS  
THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON, BUT SEE THE SHORT TERM  
DISCUSSION FOR THOSE DETAILS.  
 
SUNDAY WILL BE THE DRIEST DAY OF THE LONG TERM FORECAST AS THE  
REGION WILL BE IN BETWEEN TWO SYSTEMS, THOUGH NORTHWESTERLY FLOW  
WILL DOMINANT WITH THE LACK OF A RIDGE DEVELOPING. NORTHWESTERLY  
UPPER-LEVEL FLOW WILL SLOWLY TURN WESTERLY SUNDAY EVENING INTO EARLY  
MONDAY MORNING AS AN UPPER-LEVEL LOW OVER SOUTHERN CANADA, JUST  
NORTH OF MINNESOTA, SWINGS OFF THE THE SOUTH AND EAST AND ZONAL FLOW  
DEVELOPS BRIEFLY BEHIND IT. A BRIEF SURGE IN 500MB CVA SUNDAY  
AFTERNOON INTO THE EVENING AND OVERNIGHT HOURS WILL INCREASE  
SNOWFALL POTENTIAL FOR SEVERAL LOCATIONS ACROSS THE CWA, DESPITE THE  
ZONAL FLOW ALOFT AND BACK OF SIGNIFICANT MOISTURE. ADDITIONALLY,  
THIS SURGE IN CVA WILL BE FURTHER PROMOTED BY STRONG MOIST,  
ISENTROPIC UPGLIDE ACROSS EASTERN PORTIONS OF THE CWA. AS A RESULT,  
SNOW FALL CHANCES INCREASE TO AROUND 30-45% EAST OF THE LARAMIE  
RANGE SUNDAY EVENING, WITH MOUNTAIN SNOWFALL REMAINING POSSIBLE  
THROUGHOUT THE DAY, THOUGH INCREASING IN COVERAGE SUNDAY EVENING.  
700MB TEMPERATURES WILL REMAIN FAIRLY "WARM", AROUND -6C, LEADING TO  
TEMPERATURES IN THE MID-20S TO LOW-30S AREA-WIDE. HOWEVER,  
TEMPERATURES EAST OF THE LARAMIE RANGE ARE LIKELY TO BE A LITTLE  
WARMER THAN MOST AREAS AS 700MB FLOW INCREASES ONCE AGAIN AS THE  
SAME 700MB LOW MOVES INTO THE GREAT LAKES REGION AND A 50KT 700MB  
JET KICKS UP ACROSS THE CWA IN RESPONSE. SUNDAY HAS THE BEST CHANCE  
FOR HIGH WINDS, ESPECIALLY AT ARLINGTON, DUE TO THE STRENGTHENING  
700MB JET AND FAVORABLE OMEGA FIELDS WITH STRONG DESCENDING MOTION  
NEAR THE ARLINGTON WIND-PRONE REGION. DID INCREASE WINDS TO HIGH  
WIND CRITERIA, AS IN HOUSE RANDOM FOREST GUIDANCE SUGGESTS AROUND A  
65% PROBABILITY FOR HIGH WINDS AT ARLINGTON.  
 
MONDAY THROUGH WEDNESDAY, SIGNIFICANT MODEL DISAGREEMENT IS  
INTRODUCED INTO THE LONG TERM FORECAST, WITH NEARLY A 25 DEGREE  
SPREAD BETWEEN THE GFS AND ECMWF AND CANADIAN MODEL. THE UPPER-LEVEL  
LOW OVER SOUTHERN CANADA CONTINUES TO SPIN ON MONDAY, LEADING TO YET  
ANOTHER SHORTWAVE TRAVERSING THROUGH THE FLOW AND OVER THE CWA AS  
NORTHWESTERLY FLOW ALOFT LEAVES THE DOOR OPEN FOR SHORTWAVES TO MOVE  
OVERHEAD. AMPLE 500MB CVA WILL BE PRESENT AHEAD OF AND AS THIS  
SHORTWAVE SWINGS THROUGH, SO SYNOPTIC LIFT WILL ONCE AGAIN BE  
PRESENT ACROSS THE CWA. VERY STRONG FRONTOGENESIS WILL ONCE AGAIN BE  
PRESENT ACROSS THE REGION AS THE NEXT COLD FRONT PUSHES INTO THE  
REGION. THE FRONTOGENESIS WILL ACT TO STRENGTHEN LIFT ACROSS  
NORTHEASTERN TO CENTRAL PORTIONS OF THE CWA AS THE FRONT DIVES  
TOWARDS THE REGION. THIS IS, HOWEVER, WHEN MODEL DISAGREEMENT  
BECOMES SIGNIFICANT. THE ECMWF SUGGESTS THAT THE COLD FRONT WILL  
PASS THROUGH THE REGION MONDAY INTO TUESDAY, WITH A SECONDARY RE-  
ENFORCING SHOT OF COLD AIR RIGHT BEHIND THE FRONT ON TUESDAY MORNING  
THROUGH THE AFTERNOON AND EVENING HOURS. THIS RE-ENFORCING SHOT OF  
COLD AIR BRINGS 700MB TEMPERATURES CRASHING DOWN TO THE -24 TO -26C  
RANGE FOR NORTHEASTERN PORTIONS OF THE REGION, ALONG AND NORTHEAST  
OF HIGHWAY 26, WHILE THE SOUTHWESTERN AREAS SEE 700MB TEMPERATURES  
IN THE -18 TO -20C RANGE. THE GFS ON THE OTHER HAND KEEPS THE COLD  
FRONT PRIMARILY ALONG AND NORTHEAST OF HIGHWAY 26 WITH NO RE-  
ENFORCING SHOT OF COLD AIR. INSTEAD, THE GFS KEEPS THE REGION IN THE  
-10 TO -17C RANGE THROUGHOUT THE DAY TUESDAY AND INTO THE DAY  
WEDNESDAY. BY THURSDAY MORNING, THE ECMWF HAS THE COLD AIR JUST  
ABOVE DEPARTED FROM THE CWA, WHILE THE GFS CLEARED THE COLD AIR OUT  
OF THE REGION BY WEDNESDAY AFTERNOON. THE CANADIAN MODEL IS MORE IN  
AGREEMENT WITH THE ECMWF, BRINGING THE RE-ENFORCING SHOT OF COLD AIR  
WELL TO THE SOUTHWEST OF THAT HIGHWAY 26 LINE. OTHER ENSEMBLES ARE  
IN CLOSER AGREEMENT WITH THE GFS, THOUGH SLIGHTLY COLDER. THESE  
ENSEMBLES SUGGEST THE INITIAL COLD FRONT MOVES THROUGH, BUT THE RE-  
ENFORCING SHOT OF COLD AIR DOES NOT MOVE SOUTHWEST OF THAT HIGHWAY  
26 LINE. GIVEN THE DISCREPANCY BETWEEN THE MODELS, SURFACE  
TEMPERATURES FROM THE NBM HAVE A RANGE OF AROUND 25F FOR HIGHS  
TUESDAY AND WEDNESDAY, WITH TUESDAY, WEDNESDAY, AND THURSDAY  
MORNINGS ALSO HAVING AROUND A 25 DEGREE RANGE BETWEEN THE 25TH AND  
75TH PERCENTILES. WITH THE CANADIAN MODEL TENDING TO DO QUITE WELL  
WITH ARCTIC FRONTS, DID DECIDE TO DECREASE TEMPERATURES FROM THE NBM  
DOWN SEVERAL DEGREES TO SHOW THE POTENTIAL COLD UPCOMING THIS WEEK.  
WILL NEED TO MONITOR THE DISAGREEMENT BETWEEN MODELS TO DETERMINE IF  
THEY START COMING INTO BETTER AGREEMENT OVER THE NEXT FEW NIGHTS.  
 
ONE THING ALL LONG RAND MODELS ARE FAIRLY CONFIDENT IN IS MORE SNOW  
CHANCES MONDAY THROUGH THURSDAY. WITH SHORTWAVES PASSING OVERHEAD  
MONDAY NIGHT INTO TUESDAY MORNING AND ANOTHER SHORTWAVE THURSDAY,  
ENOUGH LIFT WILL BE PRESENT ACROSS THE REGION TO LEAD TO MULTIPLE  
DAYS OF SNOWFALL. THE MOUNTAINS HAVE THE BEST SHOT AT SEEING  
SIGNIFICANT SNOWFALL MONDAY THROUGH THURSDAY, WHILE THE PLAINS WILL  
SEE LOWERING SNOWFALL CHANCES TUESDAY MORNING. ANOTHER 1-3 INCHES OF  
SNOW LOOKS TO BE POSSIBLE MONDAY THROUGH TUESDAY MORNING ACROSS THE  
LOWER ELEVATIONS, WHILE THE HIGHER ELEVATIONS COULD SEE AN  
ADDITIONAL 10 TO 12 INCHES SUNDAY AFTERNOON THROUGH TUESDAY EVENING.  
AS A RESULT, AMPLE SNOW ACCUMULATION IS CURRENTLY EXPECTED IN THE  
HIGHER TERRAIN, WHILE A NICE 1-3 INCHES IS POSSIBLE IN THE LOWER  
ELEVATIONS.  
 

 
   
AVIATION /12Z TAFS THROUGH 12Z FRIDAY/
 
 
ISSUED AT 440 AM MST THU FEB 13 2025  
 
FAIRLY ACTIVE FORECAST ACROSS SOUTHEAST WYOMING AND WESTERN  
NEBRASKA. CLEAR SKIES AS OF 11Z THIS MORNING WILL SLOWLY TURN CLOUDY  
THROUGH THE MORNING AND EARLY AFTERNOON. LOW-LEVEL WIND SHEAR IS  
EXPECTED AROUND KCYS UNTIL 17Z THIS MORNING WHEN WINDS BEGIN TO  
INCREASE. GUSTY CONDITIONS EXPECTED AT KRWL AND KLAR TODAY, WITH  
GUSTS BETWEEN 30 AND 45KTS. GUSTS AT KRWL ARE EXPECTED TO CONTINUE  
THROUGH THE 12Z TAF PERIOD, WITH GUSTS PEAKING AROUND 50KTS THIS  
AFTERNOON AND EVENING. NEXT CONCERN FOR THE WYOMING TERMINALS WILL  
BE SNOW MOVING IN FROM THE WEST, IMPACTING KRWL AROUND 00Z AND KLAR  
AFTER 04Z. CONDITIONS AT KRWL WILL DROP INTO THE IFR CATEGORY AS THE  
HEAVIEST SNOW MOVES IN AROUND 03Z AND BLOWING SNOW FURTHER DECREASES  
THE VISIBILITY, WITH MVFR VISIBILITY FROM 01-03Z. NEBRASKA TERMINALS  
WILL SEE VFR CONDITIONS ALL DAY, WITH SOME LOW-LEVEL WIND SHEAR AT  
KBFF EXPECTED UNTIL 17Z THIS MORNING. FAIRLY CALM WINDS THROUGHOUT  
THE DAY, WITH CLOUDS INCREASING LATE IN THE PERIOD.  
 

 
   
CYS WATCHES/WARNINGS/ADVISORIES
 
 
WY...COLD WEATHER ADVISORY UNTIL 8 AM MST THIS MORNING FOR  
WYZ108>110-113-115>119.  
HIGH WIND WATCH FROM 5 PM MST THIS AFTERNOON THROUGH FRIDAY  
MORNING FOR WYZ101.  
HIGH WIND WARNING UNTIL 8 AM MST FRIDAY FOR WYZ104-110.  
HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 8 AM MST FRIDAY  
FOR WYZ105-109.  
HIGH WIND WARNING UNTIL 11 AM MST THIS MORNING FOR WYZ106-116.  
WINTER STORM WARNING FROM 5 PM THIS AFTERNOON TO 5 PM MST  
SATURDAY FOR WYZ112.  
WINTER WEATHER ADVISORY FROM 5 PM THIS AFTERNOON TO 5 PM MST  
SATURDAY FOR WYZ114.  
NE...COLD WEATHER ADVISORY UNTIL 8 AM MST THIS MORNING FOR NEZ002-  
003-019>021-054-055-095-096.  
 

 
 

 
 
UPDATE...MN  
SHORT TERM...MN  
LONG TERM...AM  
AVIATION...AM  
 
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