Jump to content
  • Member Statistics

    17,606
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

December 19 - 21 Storm System


IWXwx

Recommended Posts

  • Replies 256
  • Created
  • Last Reply

New GEM looks pretty similar to the 12z to me. At least the GEM and Euro provide some hope.

Looks like the new GEM pulls the cold air in better while the precipitation is around still into southern WI and parts of IL quicker than the 12Z. Looks like snow from the new run for your area. Better than a total torch.

Link to comment
Share on other sites

Lol nothing tops a storm going South of you and the 850mb temps roasting at 3-4c in Dec. Mother Nature is trolling pretty hard this winter. That is if you go by the Euro, if you go by the GGEM the low goes West of here and the 850 temps are below 0c. Maybe I should just bag it like Alek so I don't vest time in a fail storm.

Link to comment
Share on other sites

12z EURO through 120 misses the phase with the first s/w. Another lobe of energy is dropping down from MB at the time. It might try to phase with that but if the two streams remain disjointed this might be a suppressed looking run.

12z Euro is suppressed, not well-phased (at least over the Midwest), and anemic-looking, overall. 12z GFS op looks mediocre for my location: I would prefer a more southward track in the sfc low. The 540-dam line lies across southern Wisconsin through most of the event, and the 850-hPa 0 C isotherm lies at or just south of my location. Not having looked at any forecast soundings, I would guess that it would be a mainly rain event.

Not excited about this system. And, December 2006 was better than this around here, with the large storm (~11" here) on 30 November and 01 December.

Link to comment
Share on other sites

good summary of the situation by DVN

THE MODELS ARE IN TWO CAMPS NOW WITH RESPECT TO THE MONDAY THROUGH

WEDNESDAY STORM. THE GEM...UKMET...AND GFS RUNS SINCE 00Z LAST NIGHT

HAVE GONE FARTHER NORTH...AND BRING A SIMILAR STORM TO THE MIDWEST

THAN WAS SEEN IN THE PAST 2 DAYS. HOWEVER...THE ECMWF HAS TRENDED

SOUTH...AND CLIPS THE CWA WITH LIGHT SNOW ON TUESDAY/TUESDAY NIGHT.

THE MAJOR DIFFERENCE BETWEEN THESE MODELS BOILS DOWN TO HOW THEY

HANDLE A SEPARATE SHORT WAVE THAT ENTERS THE PACIFIC NORTHWEST

SATURDAY. THE GEM/UK/GFS ALL BRING THAT STORM INTO THE WA/OR

COAST...AND PHASE THAT WAVE/KICK THE CLOSED LOW NORTHEASTWARD AND

THEREFORE DEVELOP A SIGNIFICANT MIDWEST STORM. THE ECMWF BRINGS THIS

WAVE INTO CENTRAL BRITISH COLUMBIA...AND AS IT MOVES IT EAST...IT

OVER TOPS THE RIDGE ON THE WEST COAST VS KICKING THE LOW OUT WITH

IT. AFTER OVERTOPPING...IT SWEEPS HIGH PRESSURE AND COLD AIR DOWN

INTO THE MIDWEST FOR EARLY WEEK AND THEREFORE SUPPRESSES THE STORM

SYSTEM SOUTH. SUCH A SMALL DIFFERENCE...RESULTS IN A MAJOR

DIFFERENCES IN OUR WEATHER. THIS WAVE IN QUESTION IS REAL...BUT

FOUND OVER THE NORTH CENTRAL PACIFIC OCEAN AS OF NOW...AND IS WITHIN

A FAST BAND OF WESTERLY FLOW SOUTH OF A MAJOR ALEUTIAN LOW.

THUS...GLOBAL MODELS WILL NO LIKELY LOCK CORRECTLY ONTO ITS POSITION

AND STRENGTH FOR SOME DAYS. PREDICTING THE WEATHER IS A

CHALLENGE...BUT THIS ONE WILL TAKE TIME TO BE WORKED OUT. UNTIL WE

KNOW FOR SURE WHAT LATITUDE THIS WAVE MAKES LANDFALL IN THE PAC

NORTHWEST...WE WILL NO KNOW WHETHER IT OVERTOPS OR PHASES/KICKS OUT

OUR CLOSED LOW IN THE SOUTHWEST. TIME WILL CERTAINLY TELL.

Link to comment
Share on other sites

I'm going with the Euro at this point. Until the models quit jumping all over I won't put much faith in them. The Euro seems to be holding with the suppressed solution consistently for the last 24 hours or so, while the other models have jumped to showing a decent system after being suppressed. With this energy being out over the Pacific we won't have a good idea where that shortwave hits the coast until probably around 12hrs before it happens. In this forecasters mind another headache with so much variability in the models but I am riding the Euro as of now.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...