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12/15-12/16 MV/GL snow event?


Thundersnow12

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This is a quote from Beau Dodson's evening update on his daily analysis regarding icy conditions down his way.

At 5:15 PM Cape Girardeau County, Missouri is reporting black ice with cars moving at about 2 mph. Several wrecks have been reported. Roads appear wet but are actually covered in black ice. Extremely dangerous driving conditions.

Freezing drizzle and freezing rain has also started to fall over far western Kentucky. Again, numerous accidents have been reported over southeast Missouri from a light glaze of freezing drizzle. I have light drizzle or freezing drizzle here at my place in Massac County - as of 5 pm. Fulton and Graves County Kentucky are also reporting black ice. Don't be fooled by what appears to be wet roadways. It may be ice.

The area of precipitation continues to expand and grow over southeast Missouri, western Kentucky, southern Illinois. Radar is a bit deceptive - it is not picking up all of the precipitation that is actually falling (it is too light). However, don't be fooled by these light precipitation returns - freezing drizzle has caused roadways to become extremely slick over southeast Missouri and far southwest Kentucky (as mentioned above).

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Started as ZR here when we were supposed to have 2 inches of snow first, not a good sign.

That sucks. From KIND's recent update, sounds like the models may have been originally a bit too cold/wrong in its orientation early on.

BASED ON HOW PRECIPITATION TYPE IS EVOLVING OFF TO THE SOUTHWEST

COUPLED WITH PROGGED THICKNESSES OFF THE MODELS...AM A LITTLE

CONCERNED THAT THE CURRENT PLACEMENT OF THE SNOW/FREEZING RAIN LINE

MAY BE TOO FAR SOUTH OVER THE SOUTHWEST AND TOO FAR NORTH OVER THE

SOUTHEAST AS THICKNESSES SUGGEST MORE OF A NORTHWEST-SOUTHEAST

ORIENTATION OF PRECIPITATION TYPE. UPPER AIR OBSERVATION FROM

CENTRAL ILLINOIS ALREADY SHOWS AN ELEVATED WARM LAYER CLOSE TO

FREEZING. WILL KEEP THE CURRENT ORIENTATION OF PRECIPITATION TYPE AS

IS FOR NOW...BUT WILL SPEED UP THE ARRIVAL OF THE FREEZING RAIN

THREAT IN THE SOUTHWEST. WILL HAVE TO KEEP A CLOSE EYE ON HOW

PRECIPITATION TYPE EVOLVES OVER THE NEXT SEVERAL HOURS.

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Make that tripled then. :guitar: Whatcha think, 1-2" sound good?

2-4"...probably at the lower end though. The NAM was a dry holdout for us and it has been looking better the past couple runs. More importantly, the current trends don't really support a horrendous outcome/near shutout.

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2-4"...probably at the lower end though. The NAM was a dry holdout for us and it has been looking better the past couple runs. More importantly, the current trends don't really support a horrendous outcome/near shutout.

I guess I'll just back to my original first call of 1-3". Lock the 1", feel good about the 2", and pray for the 3". :unsure::lol::arrowhead:

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AREA FORECAST DISCUSSION...CORRECTED

NATIONAL WEATHER SERVICE QUAD CITIES IA IL

1004 PM CST WED DEC 15 2010

.UPDATE...

SNOW CONTINUES ACROSS MUCH OF AREA NORTH OF HWY 34... THOUGH

DRY AIR HOLDING ON ACROSS FAR NORTHWEST IL KEEPING SNOW

AT BAY THERE FOR TIME BEING. QUICK LOOK AT DATA THIS EVE

COUPLED WITH RECENT RADAR TRENDS SUPPORTS SHIFTING

HEAVIEST SNOW AXIS A LITTLE FURTHER SWWD... AND ANTICIPATE HIGHER

TOTALS IN CORRIDOR FROM INDEPENDENCE AND VINTON SEWD TO NEAR THE

QUAD CITIES... WHERE LIKELY 3 TO UPWARDS OF 5 INCHES WITH

LOCALLY HIGHER AMOUNTS NOT OUT QUESTION AS MAIN FORCING OVERLAID

WITH FAVORABLE DENDRITIC PROFILE FOR PDS OF MODERATE TO

BRIEFLY HEAVY SNOW AT TIMES OVRNGT. DRY AIR WILL CUT INTO

AMOUNTS HEADING EITHER NORTH OR SOUTH OF THIS MAIN CORRIDOR.

ACROSS THE FAR SOUTH THERE IS SOME CONCERNS WITH FREEZING DRIZZLE

OR VERY LIGHT FREEZING RAIN... AND THERE HAS BEEN SOME LIGHT

GLAZING JUST SOUTH OF CWA IN QUINCY IL. AREA JUST SOUTH OF CWA

APPEARS TO BE MORE FAVORABLE FOR SOME ICING BEING NEAR 850 MB

WARM FRONT BUT CANT RULE OUT IN THE SOUTH AND POSSIBLY NEEDING

ADVISORY. NOT CONFIDENT THOUGH ON EXTENT AND WILL CONTINUE TO

HIGHLIGHT IN SPS FOR NOW.

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It's been snowing for over 4 hours now and we have a whopping 0.7" so far. Flake size has been around salt size since it started. The heavier band to the southwest is trying to get here, but it's fighting the drier air. This clipper pales in comparison to the one a few weeks ago. I think we'll be doing good if we manage to squeeze 2 inches out of this thing.

Note to self, next time the NAM is unusually dry compared to the GFS within 24hrs, disregard the overly wet GFS.

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