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March 4-6 Winter Storm pt 2


Harry

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GFS, much like the NAM, showing potential disaster for CMH.

was just trying to post this:

 

blech

 

00z runs blowing for cmh... this might be back to an advisory by tomorrow afternoon...if that. Lost that i-70 corridor deform band look and most of the heavier precip is further sw. Warm air further entrenched from southeast.

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GFS, much like the NAM, showing potential disaster for CMH.

 

Yeah, maybe a typical primary to coastal screw job?  I guess the low weakens so we don't get as much CAA to quickly change the rain over to snow.  Thus we are left with way lower totals...Looks like about 1 inch :axe:

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DVN not liking the NAM

 

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
922 PM CST MON MAR 4 2013

.UPDATE...
JUST SENT AN UPDATE TO LOWER POPS WEST BY A CATEGORY FOR THE REST
OF THE THIS EVENING. THE PRECIP HAS BEEN SLOWER TO EVOLVE THAN
PREVIOUSLY EXPECTED AND IT NOW LOOKS LIKE ANY SIGNIFICANT
PRECIP/SNOW SHOULD NOT BEGIN UNTIL AFTER MIDNIGHT. REGIONAL RADAR
COMPOSITES WERE SHOWING AN EXPANSION OF LIGHT RETURNS OVER WESTERN
IOWA THE PAST HOUR BETWEEN SOME HIGHER REFLECTIVITY/S MOVING
NORTHEAST OUT OF NORTH CENTRAL MO MORE SHOWERY LOOKING PRECIP FROM
NORTHERN IA INTO MN. THE CURRENT THINKING IS THE NORTHERN MO/IA
AREAS WILL MERGE THE NEXT FEW HOURS WITH THE BETTER FORCING AHEAD
OF THE NORTHERN PLAINS UPPER LOW MOVING IN.

NO OTHER CHANGES WERE MADE TO THE FORECAST CONCERNING SNOW FALL
AMOUNTS OR HEADLINES. THE 00Z NAM CAME IN WITH AN UPPER LOW TRACK
NORTHEAST OF THE MONDAYS RUNS SUGGESTING LOWER SNOW AMOUNTS...BUT
THE NAM HAS BEEN A NORTHEASTERN OUTLIER WITH THIS SYSTEM ON SEVERAL
RUNS. THE LATEST RAP RUNS CONTINUE TO MOVE THE UPPER LOW ALONG A
SIMILAR TRACK AS MONDAY/S MODEL RUNS SUGGESTED.


 

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Yeah, maybe a typical primary to coastal screw job?  I guess the low weakens so we don't get as much CAA to quickly change the rain over to snow.  Thus we are left with way lower totals...Looks like about 1 inch :axe:

 

I should have stuck to my guns with this one.  I said several days ago that these setups, (strong ULL dropping in from the nw), are almost ALWAYS a cmh screwjob.

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Oh my...this is priceless. One to hang on my wall for sure.  :axe:

 

attachicon.gif3:5 0z GFS snow.gif

 

lol, think that's just a quirk in the model run.  Really wouldn't take that seriously.  Run the same data through 20 times, and you'd probably get those little sucker holes popping up in all different areas. 

 

EDIT:  Still liking 3-6 for LAF.

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Yes, Dayton looks very good.

 

Buckeye, ouch.  My article I posted today had us in the 4-7 range :axe:  I think we can still pull off 4 at least.

 

well there's always the chaos factor with this storm...lol.   Dynamic thump cooling, warm pockets aloft.... no matter what this isn't going to be a 'clean' event.

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