681  
FXUS63 KGRR 022338  
AFDGRR  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
638 PM EST MON FEB 2 2026  
   
KEY MESSAGES  
 
- LINGERING LIGHT SNOW THIS EVENING  
 
- SNOW THURSDAY NIGHT INTO FRIDAY  
 
- COLDER WITH LAKE EFFECT NEXT WEEKEND  
 
 
   
DISCUSSION  
 
ISSUED AT 306 PM EST MON FEB 2 2026  
 
-LINGERING LIGHT SNOW THIS EVENING  
 
THE WINTER WEATHER ADVISORY CONTINUES FOR AREAS OF FREEZING DRIZZLE  
AND ICY ROADS FROM MUSKEGON COUNTY TO GRATIOT COUNTY AND SOUTH. AS  
THE FRONT MOVES THROUGH OVER THE NEXT TWO HOURS ANY FREEZING  
DRIZZLE SHOULD TRANSITION TO SNOW. ANY ADDITIONAL ICE ACCUMULATIONS  
WOULD BE A LIGHT GLAZE WITH SNOW AMOUNTS LESS THAN A HALF INCH.  
AREAS TO THE NORTH HAVE ONLY OBSERVED SNOW, THEREFORE HAVE  
CANCELLED THE ADVISORY IN THESE AREAS.  
 
- SNOW THURSDAY NIGHT INTO FRIDAY  
 
NO CHANGES FROM THE PREVIOUS FORECAST AS PROBABILITIES CONTINUE TO  
FALL FOR 2 INCHES OR MORE OF SNOW NOW AT 20 PERCENT OR LESS ACROSS  
MUCH OF THE AREA. SOUTHWEST FLOW AHEAD OF THE TROUGH COULD BRING  
SOME LIGHT LAKE EFFECT SNOW SHOWERS EARLIER IN THE DAY THURSDAY  
OTHERWISE MOST OF THE SNOW IS EXPECTED TO OCCUR THURSDAY NIGHT INTO  
FRIDAY. MOST OF THE SYNOPTIC SUPPORT REMAINS NORTH OF THE AREA  
RESULTING IN THE LOWER SNOWFALL AMOUNTS. EITHER WAY THIS NUISANCE  
SNOW FOR THE FRIDAY MORNING COMMUTE COULD BRING SOME BRIEF TRAVEL  
IMPACTS. FRIDAY TEMPERATURES ARE FORECAST TO RISE ABOVE FREEZING  
WHICH WOULD BE THE FIRST TIME SINCE MID JANUARY.  
 
- COLDER WITH LAKE EFFECT NEXT WEEKEND  
 
BEHIND THE FRONT FRIDAY COLDER AIR WILL ADVECT INTO THE REGION  
BRINGING WITH IT HIGHS IN THE TEENS TO LOW 20S AND LOWS NEAR ZERO  
OVER THE WEEKEND. MEAN 850MB TEMPERATURES SATURDAY MORNING AROUND  
-16C WILL RESULT IN LAKE SURFACE TEMPERATURE DIFFERENCES AROUND -18C  
WHICH WILL BE SUPPORTIVE OF LAKE EFFECT SHOWERS. 850MB TEMPERATURES  
WILL SLOWLY WARM DURING THE WEEKEND REDUCING THAT TEMPERATURE  
DIFFERENCE WITH LAKE EFFECT GRADUALLY TAPERING OFF SUNDAY.  
 
 
   
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/  
 
ISSUED AT 634 PM EST MON FEB 2 2026  
 
RADAR SHOWS SNOW STILL FALLING ACROSS THE REGION. MODELS ARE NOT  
HANDLING THIS WELL AT ALL. INSTABILITY OVER THE LAKE REMAINS  
SUFFICIENT FOR LAKE EFFECT SNOW PRODUCTION THROUGH THE NIGHT.  
ADDITIONALLY, A SHORT WAVE WILL MOVE SOUTH OVER THE TERMINALS  
AFTER MIDNIGHT AND WE'RE LIKELY TO SEE AN UPTICK IN RADAR ECHOS.  
THE DGZ REMAINS SATURATED AND THE SAME HEIGHT OVERNIGHT. THUS, WE  
KEPT LIGHT SNOW FALLING AT THE TERMINALS THROUGH 12Z. MUCH OF THE  
LIFT IS SITUATED BELOW THE DGZ AND SO THE SNOW SHOULD REMAIN  
LIGHT. HOWEVER, MVFR WITH POCKETS OF IFR REMAIN THE MOST LIKELY  
SCENARIO OVERNIGHT.  
 
 
   
GRR WATCHES/WARNINGS/ADVISORIES  
 
MI...WINTER WEATHER ADVISORY UNTIL 7 PM EST THIS EVENING FOR  
MIZ050>052-056>059-064>067-071>074.  
MARINE...NONE.  
 
 
 
 
 
DISCUSSION...RAH  
AVIATION...04  
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