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Superbowl Snowstorm Thread Part 3


TugHillMatt

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It was a good rally though, from what I was expecting this morning. Looks like there's some filling in on ILX's radar at the moment, but not sure if it'll move north of us...or if it'll stay snow. :lol:

Just measured - I think I'll hit 3" by the time the dry slot moves in. The latest HRRR is promising - brief break but it quickly fills back in.

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URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE CHICAGO IL

1029 AM CST SUN FEB 1 2015

ILZ005-006-011>014-020-022-INZ001-020030-

/O.CAN.KLOT.WS.W.0002.000000T0000Z-150201T2000Z/

/O.EXT.KLOT.BZ.W.0001.150201T1629Z-150202T0600Z/

MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-

INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...DEKALB...

AURORA...WHEATON...CHICAGO...OSWEGO...JOLIET...GARY

1029 AM CST SUN FEB 1 2015

...blizzard warning now in effect until midnight cst tonight...

...winter storm warning is cancelled...

the blizzard warning replaces the winter storm warning.

* timing, snow, heavy at times, will continue through this

evening. blizzard conditions will also develop, especially

near the lake and in more open areas.

* winds/visibility, northeast winds will increase to 20 to 30

mph with gusts to 40 mph this afternoon, with even stronger

winds near the lake. the combination of falling and blowing

snow will frequently reduce visibilities to near zero in white

out conditions late this afternoon and evening.

* snow accumulations, 12 to 16 inches, with isolated totals up

to 18 inches possible.

* main impact, snow covered roads will make travel difficult. by

afternoon, the combination of the snow and very strong winds

will make travel extraordinarily dangerous.

* secondary impact, the combination of strong northeast winds and

snow covered power lines may lead to isolated power outages.

precautionary/preparedness actions...

a blizzard warning means severe winter weather conditions are

expected or occurring. falling and blowing snow with strong winds

and poor visibilities are likely. this will lead to whiteout

conditions, making travel extremely dangerous. do not travel. if

you must travel, have a winter survival kit with you. if you get

stranded, stay with your vehicle.

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Just measured - I think I'll hit 3" by the time the dry slot moves in. The latest HRRR is promising - brief break but it quickly fills back in.

 

3" sounds good before dry slot. And yeah, HRRR is a little more encouraging. Total snow globe right now. Very pretty.

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7.2" as of 9:30 a.m.  About an inch ahead of where I thought we'd be at this hour.

 

Enjoy some pictures of branches thoroughly caked:

 

10924656_10205069063461505_2630648322754

 

10974506_10205069063421504_4003728076622

 

 

starting to lose branches on my evergreens....sux....

 

10959599_497398533734275_360074194032343

Wow. Those are really great pics, it looks beautiful out there. The snow here is totally different, very powdery and blowing around all over.

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Looking at some of the traffic cams in southeast michigan it looks like it's coming down good around 96 and wixsom rd. any snow reports?

 

Heavy band came through Ann Arbor in the last 20 to 30 minutes. Hard to measure well - it's blowing and powdery, but 3"-ish so far I think.

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for posterity....

 

 

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1029 AM CST SUN FEB 1 2015

ILZ005-006-011>014-020-022-INZ001-020030-
/O.CAN.KLOT.WS.W.0002.000000T0000Z-150201T2000Z/
/O.EXT.KLOT.BZ.W.0001.150201T1629Z-150202T0600Z/
MCHENRY-LAKE IL-DE KALB-KANE-DUPAGE-COOK-KENDALL-WILL-LAKE IN-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...DEKALB...
AURORA...WHEATON...CHICAGO...OSWEGO...JOLIET...GARY
1029 AM CST SUN FEB 1 2015

...BLIZZARD WARNING NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE BLIZZARD WARNING REPLACES THE WINTER STORM WARNING.

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THIS
  EVENING. BLIZZARD CONDITIONS WILL ALSO DEVELOP...ESPECIALLY
  NEAR THE LAKE AND IN MORE OPEN AREAS.

* WINDS/VISIBILITY...NORTHEAST WINDS WILL INCREASE TO 20 TO 30
  MPH WITH GUSTS TO 40 MPH THIS AFTERNOON...WITH EVEN STRONGER
  WINDS NEAR THE LAKE. THE COMBINATION OF FALLING AND BLOWING
  SNOW WILL FREQUENTLY REDUCE VISIBILITIES TO NEAR ZERO IN WHITE
  OUT CONDITIONS LATE THIS AFTERNOON AND EVENING.

* SNOW ACCUMULATIONS...12 TO 16 INCHES...WITH ISOLATED TOTALS UP
  TO 18 INCHES POSSIBLE.

* MAIN IMPACT...SNOW COVERED ROADS WILL MAKE TRAVEL DIFFICULT. BY
  AFTERNOON...THE COMBINATION OF THE SNOW AND VERY STRONG WINDS
  WILL MAKE TRAVEL EXTRAORDINARILY DANGEROUS.

* SECONDARY IMPACT...THE COMBINATION OF STRONG NORTHEAST WINDS AND
  SNOW COVERED POWER LINES MAY LEAD TO ISOLATED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

 

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IND has transitioned to all rain now. But, with a temp of 30˚. 

 

SPECI KIND 011604Z 12008KT 3SM -PL BR BKN026 OVC034 M01/M01 A2984 RMK AO2 RAE04SNE04PLB04 P0002 T10111011 $

 

SPECI KIND 011620Z 11007KT 3SM -PLRASN BR SCT026 OVC032 M01/M01 A2983 RMK AO2 RAE04B19SNE04B06PLB04 P0004 T10111011 $

 

SPECI KIND 011634Z 11008KT 3SM -RA BR OVC032 M01/M01 A2981 RMK AO2 RAE04B19SNE04B06E33PLB04E33 P0006 T10111011 $

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IND has transitioned to all rain now. But, with a temp of 30˚. 

 

SPECI KIND 011604Z 12008KT 3SM -PL BR BKN026 OVC034 M01/M01 A2984 RMK AO2 RAE04SNE04PLB04 P0002 T10111011 $

 

SPECI KIND 011620Z 11007KT 3SM -PLRASN BR SCT026 OVC032 M01/M01 A2983 RMK AO2 RAE04B19SNE04B06PLB04 P0004 T10111011 $

 

SPECI KIND 011634Z 11008KT 3SM -RA BR OVC032 M01/M01 A2981 RMK AO2 RAE04B19SNE04B06E33PLB04E33 P0006 T10111011 $

 

Uh, what?!

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AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
1036 AM CST SUN FEB 1 2015  
   
UPDATE
 
1031 AM CST  
 
WE HAVE INCREASED SNOWFALL AMOUNTS SOME THIS AFTERNOON...ESPECIALLY  
ACROSS NORTHERN ILLINOIS AND FAR NORTHWESTERN INDIANA. A VERY  
IMPRESSIVE SYSTEM CONTINUES TO DEVELOP ACROSS THE CENTRAL CONUS THIS  
MORNING IN RESPONSE TO A STRONG PV ANOMALY OVER THE CENTRAL PLAINS.  
AS THIS STORM CONTINUES TO INTENSIFY THIS AFTERNOON...MODEL GUIDANCE  
SUGGESTS THAT A BAND OF STRONG FRONTOGENESIS WILL DEVELOP IN AN  
EMERGING DEFORMATION ZONE ASSOCIATED WITH THE 700 MB LOW...RIGHT  
ACROSS NORTHERN ILLINOIS. THIS ALSO LOOKS TO OCCUR DURING THE  
PERIOD OF BEST STRONG MID/UPPER LEVEL Q-VECTOR DIVERGENCE  
ASSOCIATED WITH THE MID/UPPER LEVEL SYSTEM. ALL IN ALL THIS POINTS  
TO STRONG DYANAMICS SUPPORTIVE OF PERIODS OF HEAVY SNOW THROUGH  
THE DAY TODAY...AND LINGERING THIS EVENING. IT APPEARS THE  
HEAVIEST AMOUNTS WILL EXCEED A FOOT IN MANY AREAS...WITH A FOOT  
AND A HALF NOT OUT OF THE QUESTION FOR NORTHERN ILLINOIS.  
 
THE OTHER CONCERN IS BLIZZARD CONDITIONS...WE ARE UPGRADING THE REST  
OF NORTH CENTRAL ILLINOIS TO A BLIZZARD WARNING. NORTHEASTERLY  
WINDS WILL ONLY INCREASE THROUGH THE AFTERNOON...WITH GUSTS  
POTENTIAL UP AROUND 40 KT AT TIMES GIVEN THE STRONG GRADIENT SETTING  
UP ON THE BACK SIDE OF THIS SYSTEM. THIS HAS ME SERIOUSLY CONCERNED  
THAT AS THE SNOW CONTINUES TO BECOME MORE POWDERY THROUGH THE  
DAY...THAT WHITE OUT CONDITIONS WILL BE OBSERVED ACROSS NORTHERN  
ILLINOIS. THE OTHER CONCERN IS FOR DOWNED TREE BRANCHES AND POWER  
LINES. THE SNOW THAT HAS FALLEN THUS FAR ACROSS THE AREA HAS BEEN A  
STICKY WET SNOW AND HAS PRODUCED SIGNIFICANT ACCUMULATIONS ON TREES  
AND POWER LINES. THE INCREASING WINDS COULD BRING DOWN POWER  
LINES...LEADING TO SOME ISOLATED POWER OUTAGES.

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Attempted to take a sounding.

 

Not sure what happened, but the sonde hit the wall of the obs deck, causing the de-reeler to de-reel too fast.  Long story short, our weather balloon is now dancing in the wind on top of the art & music building next door.

 

I hope they don't see this as an act of aggression against them...

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