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Two Clipper Systems Part II


mimillman

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Hey All-

I'm sorry to ask this question without contributing anything.. I'm flying into IND from HOU on Thursday evening.. I see that there is a chance of snow... My question: Is IND prepared to handle a bit of snow like my hometown of BOS, or does it shutdown at the first flake? I have courtside seats for the IU basketball game on Saturday, and would hate to get my travel plans messed up!

I landed at IND during a 2-4 inch snow last year. You will be fine Thursday night. And GO HOOSIERS!

Sent from my iPhone using Tapatalk

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MESOSCALE DISCUSSION 0029
NWS STORM PREDICTION CENTER NORMAN OK
0821 PM CST TUE JAN 19 2016

AREAS AFFECTED...CNTRL/SRN IL AND ADJACENT PORTIONS OF SE MO...WRN
KY...W CNTRL/SW IND

CONCERNING...HEAVY SNOW

VALID 200221Z - 200515Z

SUMMARY...SNOW...INCLUDING AT LEAST A COUPLE HOUR PERIOD OF HEAVY
SNOW RATES IN EXCESS OF 1 INCH PER HOUR...WILL OVERSPREAD MUCH OF
CENTRAL AND SOUTHERN ILLINOIS AND PORTIONS OF ADJACENT STATES
THROUGH 03-06Z...BEFORE DIMINISHING. HEAVIEST SNOW RATES MAY IMPACT
THE I-64 CORRIDOR NEAR MT. VERNON IL THROUGH THE EVANSVILLE IND
AREA.

DISCUSSION...AN AREA OF DEVELOPING SNOW ACROSS THE MIDDLE
MISSISSIPPI VALLEY APPEARS LARGELY IN RESPONSE TO FORCING ASSOCIATED
WITH LOW-LEVEL WARM ADVECTION...IN ADVANCE OF A COUPLE OF SHORT WAVE
TROUGHS PROGRESSING INTO/THROUGH THE MISSISSIPPI VALLEY. AS A
SOUTHWESTERLY 850 MB SPEED MAXIMUM STRENGTHENS EAST OF THE I-44
CORRIDOR OF SOUTH CENTRAL MISSOURI...TOWARD SOUTHERN ILLINOIS...
HOURLY SNOW RATES APPEAR TO BE INCREASING SOUTH THROUGH EAST OF THE
GREATER ST. LOUIS METROPOLITAN AREA. SNOW RATES MAY INTENSIFY
FURTHER THROUGH THE 03-06Z TIME FRAME...WITH INCREASING LARGE-SCALE
ASCENT AND LOW-LEVEL MOISTURE RETURN ACROSS AND SOUTH OF THE I-64
CORRIDOR OF SOUTHERN ILLINOIS INTO SOUTHERN INDIANA.

ANOTHER RELATIVE MAXIMUM IN SNOWFALL RATES APPEARS TO BE DEVELOPING
ALONG A LOWER/MID TROPOSPHERIC THERMAL GRADIENT ACROSS THE
SPRINGFIELD/DECATUR IL AREA TOWARD TERRE HAUTE IN. THIS MAY PERSIST
AND INTENSIFY FURTHER THROUGH LATE EVENING...BEFORE DIMINISHING
AFTER 06Z AS LARGE-SCALE ASCENT SHIFTS EASTWARD INTO THE OHIO VALLEY
AND WEAKENS.

GIVEN THE RELATIVELY HIGH SNOW TO LIQUID WATER RATIOS ASSOCIATED
WITH THE COLD LOW-LEVEL ENVIRONMENT...AND THE PLUME OF PRECIPITABLE
WATER ON THE ORDER OF ONE-HALF INCH OVERSPREADING THE REGION...LIFT
APPEARS SUFFICIENT TO SUPPORT AT LEAST A COUPLE HOUR PERIOD OF SNOW
RATES IN EXCESS OF 1 INCH PER HOUR.

 

post-3774-0-48759100-1453257514_thumb.gi

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My little area of West Michigan has a Winter Weather Advisory for SW flow lake enhancement as a result of this wave. GRR is saying possible 1" per hour rates for a few hours...3 to 5 inches. Nice big fluffy flakes have been coming down this evening. Hoping when I wake up early in the morning the snow will be ripping.

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