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January 16-18th Potential Storm


dmc76

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This storm looks blah here. Not nearly the torching with it the euro showed at one time, but prolonged period of mid-upper 30s should wipe out my 2" snowcover and LES looks minimal to none on the backside as the cold air moves in. Cutting losses, onto Wed night clipper.

You need a 12 step program to help with your white powder addiction.

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Per GRR morning AFD:

SHORT TERM...(400 AM EST MON JAN 16 2012)

(TODAY THROUGH WEDNESDAY AFTERNOON)

LIGHT RAIN AND DRIZZLE WILL DEVELOP THIS AFTN AS SOUTH TO SW WINDS

ADVECT MILDER AIR INTO OUR FCST AREA. MAX TEMPS THIS AFTN ARE

EXPECTED TO REACH THE 35 TO 40 DEGREE MARK IN THE WAA PATTERN AND IN

SPITE OF THE SNOW COVER. WILL NEED TO MONITOR FOR POTENTIAL FOR A

LITTLE FREEZING DRIZZLE ACROSS OUR NORTHERN FCST AREA TODAY

DEPENDING ON HOW QUICKLY SFC TEMPS MODERATE IN THE WAA PATTERN. THE

COMBINATION OF LIGHT RAIN AND MELTING SNOW AND WARMER AIR

OVERRUNNING SOME MELTING SNOW COVER SHOULD SET THE STAGE FOR SOME

AREAS OF LIGHT FOG TO DEVELOP THIS AFTN AND PARTICULARLY THIS EVE

WHEN IT COULD BECOME RATHER DENSE.

A LIGHT WINTRY MIX OF PCPN IS ANTICIPATED TONIGHT FOLLOWED BY

SYNOPTIC SNOW ON THE BACK SIDE OF THE STRENGTHENING SFC LOW

TUESDAY... RANGING FROM AROUND 2 TO 4 INCHES AND PERHAPS LOCALLY

HIGHER AMOUNTS ESPECIALLY UP NORTH. IT WILL ALSO BECOME RATHER

BREEZY TUESDAY AFTN/EVE. WE DID BUMP UP POPS TO CATEGORICAL FOR SNOW

TUESDAY AND TWEAKED FCST SNOW ACCUMS UP A BIT TO NEAR 4 INCHES

ACROSS OUR NORTHERN FCST AREA. THIS BASED LARGELY ON 00Z GFS

GUIDANCE. AFTER LOOKING AT 00Z ECMWF GUIDANCE... IT IS POSSIBLE THAT

FUTURE SHIFTS MAY NEED TO CONTINUE THE TREND OF BUMPING UP FCST SNOW

AMOUNTS A LITTLE MORE FOR TUESDAY.

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LOT discussion:

...WINTRY MIX AND SNOWFALL POSSIBLE LATE TONIGHT AND TUESDAY... WITH RISING TEMPERATURES AND AN INCREASE IN MOISTURE OUT AHEAD OF AN APPROACHING SURFACE LOW...LIGHT RAIN OR DRIZZLE...AND FOG WILL DEVELOP ACROSS MUCH OF NORTHERN ILLINOIS AND NORTHWEST INDIANA TODAY. THIS SURFACE LOW WILL THEN MOVE EAST THROUGH THE AREA TONIGHT WITH AN ASSOCIATED COLD FRONT USHERING IN MUCH COLDER AIR...PROVIDING A TRANSITION TO A WINTRY MIX AND THEN SNOW ON TUESDAY. CURRENT INDICATIONS ARE THAT THIS LIGHT RAIN WILL TRANSITION TO LIGHT FREEZING RAIN LATE TONIGHT AND EARLY TUESDAY MORNING FOR AREAS NORTHWEST OF A LINE FROM LA SALLE TO CHICAGO. ALTHOUGH...THIS SHOULD BE A BRIEF WINDOW WITH NO ICE ACCUMULATION EXPECTED. A TRANSITION TO ALL SNOW IS THEN EXPECTED TO OCCUR THROUGH MID MORNING TUESDAY FOR ALL AREAS IN NORTHERN ILLINOIS AND NORTHWEST INDIANA. BEFORE THE SNOW ENDS TUESDAY AFTERNOON...A FEW INCHES OF SNOW CAN BE EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

Sounds like enough snowfall to cause morning rush hour headaches!

:yikes:

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12z ECMWF

LSE:

 
TUE 12Z 17-JAN  -3.8   -10.6    1012	  78	  95    0.04	 537	 528   
TUE 18Z 17-JAN  -5.2   -14.5    1018	  66	  99    0.12	 531	 517   
WED 00Z 18-JAN -12.1   -13.3    1023	  64	  32    0.01	 528	 511

MSN:

 
TUE 06Z 17-JAN   0.1	 0.2    1008	  91	  55    0.02	 548	 541   
TUE 12Z 17-JAN  -2.0    -5.0    1007	  90	  84    0.06	 542	 537   
TUE 18Z 17-JAN  -3.7   -12.1    1013	  75	  99    0.17	 534	 523   
WED 00Z 18-JAN  -7.1   -14.5    1020	  71	  72    0.02	 529	 513

MKE:

 
TUE 06Z 17-JAN   1.8	 1.9    1008	  92	  44    0.02	 549	 543   
TUE 12Z 17-JAN   0.7    -0.7    1004	  94	  67    0.04	 544	 541   
TUE 18Z 17-JAN  -2.9    -8.6    1009	  80	  98    0.14	 535	 528   
WED 00Z 18-JAN  -5.8   -13.8    1018	  73	  97    0.02	 529	 515

SBM:

 
TUE 06Z 17-JAN   0.6    -1.7    1009	  88	  71    0.01	 547	 539   
TUE 12Z 17-JAN  -0.7    -5.4    1006	  87	  78    0.04	 542	 537   
TUE 18Z 17-JAN  -4.2   -10.0    1009	  82	  99    0.17	 533	 525   
WED 00Z 18-JAN  -6.4   -14.7    1018	  70	  97    0.05	 527	 513

CID:

 
TUE 00Z 17-JAN   2.6	 2.4    1007	  92	  29    0.01	 552	 546   
TUE 06Z 17-JAN   1.2    -0.3    1008	  93	  35    0.01	 549	 543   
TUE 12Z 17-JAN  -1.7    -6.0    1009	  89	  97    0.11	 542	 535   
TUE 18Z 17-JAN  -5.1   -11.2    1019	  73	  97    0.04	 536	 521

DVN:

 
TUE 06Z 17-JAN   2.7	 2.1    1006	  98	  46    0.01	 551	 546   
TUE 12Z 17-JAN   0.6    -2.0    1006	  98	 100    0.13	 544	 540   
TUE 18Z 17-JAN  -1.9   -10.5    1016	  76	  61    0.05	 538	 525

PIA:

 
TUE 12Z 17-JAN   4.0	 1.9    1005	  97	  84    0.11	 549	 545   
TUE 18Z 17-JAN   0.3    -8.3    1014	  76	  31    0.02	 543	 532   
WED 00Z 18-JAN  -4.7   -11.3    1023	  61	  53    0.01	 540	 522

RFD:

 
TUE 06Z 17-JAN   2.1	 2.9    1006	  98	  42    0.03	 551	 545   
TUE 12Z 17-JAN   0.6    -0.5    1004	  97	  99    0.13	 545	 542   
TUE 18Z 17-JAN  -2.3    -9.6    1012	  79	  72    0.12	 537	 527   
WED 00Z 18-JAN  -5.0   -13.8    1020	  73	  94    0.01	 532	 516

ORD:

 
TUE 12Z 17-JAN   2.2	 1.7    1003	  98	  99    0.07	 548	 545   
TUE 18Z 17-JAN  -0.3    -6.7    1009	  85	  77    0.12	 539	 532   
WED 00Z 18-JAN  -4.2   -13.3    1019	  71	  96    0.01	 533	 518

MDW:

 
TUE 12Z 17-JAN   3.5	 2.7    1002	  98	  98    0.09	 548	 547   
TUE 18Z 17-JAN   0.6    -6.2    1008	  87	  73    0.10	 540	 533   
WED 00Z 18-JAN  -3.3   -12.8    1018	  70	  97    0.01	 534	 519

VPZ:

 
TUE 12Z 17-JAN   6.7	 5.6    1001	 100	 100    0.14	 551	 550   
TUE 18Z 17-JAN   1.7    -4.5    1007	  95	  69    0.10	 543	 537   
WED 00Z 18-JAN  -2.6   -12.4    1017	  68	  98    0.03	 536	 522   
WED 06Z 18-JAN  -4.9   -13.6    1024	  62	  10    0.01	 534	 516

LAF:

 
TUE 12Z 17-JAN  12.1	 7.6    1002	  98	  85    0.42	 554	 553   
TUE 18Z 17-JAN   5.1    -1.0    1008	  77	  30    0.17	 549	 542   
WED 00Z 18-JAN  -0.4   -11.2    1018	  65	  21    0.01	 543	 529   
WED 06Z 18-JAN  -4.5   -11.8    1024	  65	   9    0.01	 539	 520

MKG:

 
TUE 12Z 17-JAN   1.7	 1.8    1003	  95	  58    0.04	 546	 543   
TUE 18Z 17-JAN   0.8    -5.1    1002	  90	  98    0.21	 537	 535   
WED 00Z 18-JAN  -2.7   -13.1    1014	  76	 100    0.07	 528	 517   
WED 06Z 18-JAN  -6.2   -16.0    1021	  70	  19    0.03	 528	 512

GRR:

 
TUE 12Z 17-JAN   1.9	 3.6    1002	  99	  68    0.04	 547	 545   
TUE 18Z 17-JAN   1.4    -1.0    1000	  96	  89    0.22	 539	 538   
WED 00Z 18-JAN  -2.7   -11.8    1012	  80	  99    0.04	 530	 520   
WED 06Z 18-JAN  -8.6   -15.7    1021	  79	  18    0.01	 529	 513

BTL:

 
TUE 18Z 17-JAN   4.6	 0.0    1000	  96	  59    0.20	 542	 542   
WED 00Z 18-JAN  -1.9   -10.7    1012	  82	  91    0.02	 533	 524   
WED 06Z 18-JAN  -6.4   -15.1    1021	  75	  36    0.02	 531	 515

DTW:

 
TUE 18Z 17-JAN  10.7	 5.5	 996	  95	  74    0.28	 546	 549   
WED 00Z 18-JAN   1.6    -7.9    1007	  80	  25    0.02	 536	 531   
WED 06Z 18-JAN  -3.7   -13.8    1017	  61	  73    0.01	 531	 517

PHN:

 
TUE 18Z 17-JAN   8.0	 6.1	 995	  98	  83    0.19	 544	 548   
WED 00Z 18-JAN   0.7    -8.3    1005	  84	  40    0.04	 534	 530   
WED 06Z 18-JAN  -4.1   -14.3    1015	  67	  78    0.02	 527	 516

YKF:

 
TUE 18Z 17-JAN   5.2	 4.4	 998	  98	 100    0.16	 546	 547   
WED 00Z 18-JAN   2.0    -3.3	 997	  92	  41    0.16	 534	 537   
WED 06Z 18-JAN  -4.0   -13.2    1009	  68	  73    0.02	 526	 519   
WED 12Z 18-JAN  -7.1   -15.7    1018	  65	  42    0.02	 525	 511

YYZ:

 
TUE 18Z 17-JAN   4.4	 3.9	 999	  96	 100    0.25	 546	 546   
WED 00Z 18-JAN   5.8    -0.2	 994	  86	  42    0.17	 535	 540   
WED 06Z 18-JAN  -3.0   -13.4    1008	  66	  78    0.01	 525	 519   
WED 12Z 18-JAN  -6.6   -15.9    1017	  66	  68    0.01	 524	 511

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12z ECMWF

LAF:

TUE 12Z 17-JAN  12.1	 7.6	1002	  98	  85	0.42	 554	 553  
TUE 18Z 17-JAN   5.1	-1.0	1008	  77	  30	0.17	 549	 542  
WED 00Z 18-JAN  -0.4   -11.2	1018	  65	  21	0.01	 543	 529  
WED 06Z 18-JAN  -4.5   -11.8	1024	  65	   9	0.01	 539	 520

A dusting. Pretty sure that's an improvement for LAF. :guitar:

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