Tallguy001 Posted December 20, 2012 Share Posted December 20, 2012 Lurker here, but thought this may help. http://www.511wi.gov/Web/map.aspx?region=southeast Traffic cams along I94. The cam east of Lake Mills is at Johnson Creek, near Jefferson. Looks to be starting to changeover a bit there. The cam west of Lake Mills is in extreme East Dane County, and they have been all snow. Link to comment Share on other sites More sharing options...
Nelson Posted December 20, 2012 Share Posted December 20, 2012 Update Link to comment Share on other sites More sharing options...
hawkeye_wx Posted December 20, 2012 Share Posted December 20, 2012 I still only have about 3.6", not exactly the 9-12 that was expected. There are several reports of 5-6 inches in the Cedar Rapids area, but I'm guessing spotters are not accounting for the grass layer. This stuff is caked together and is sitting on top of an inch of airy grass. I just took a core sampled from my snowboard and got 1.03" of liquid. That's a 3.5 to 1 ratio. This horrible stuff is as wet and heavy as anything I've ever had to clean from the driveway. Just awful. Only a couple inches of this stuff on the pavement kept clogging the blower so I had to pause every couple feet to let it clear out. The light/moderate snow currently falling is blowing around, but the 3.5 inches of concrete on the ground won't budge. This storm isn't even on the same planet as the much colder, much snowier Groundhog Day blizzard. Link to comment Share on other sites More sharing options...
Nelson Posted December 20, 2012 Share Posted December 20, 2012 i don't care what side of a landcane i am on...sure i would prefer the snowy side... i just dig the dynamics..cheers For sure, my comment was related to the tool that posted a few hours ago saying this was run of the mill. But, yeah, I'm with you - shouldn't matter where you are at. if you're interested in weather, you have to be into this storm. Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 nice pic andy, legit +SN with fat flakes Link to comment Share on other sites More sharing options...
Nelson Posted December 20, 2012 Share Posted December 20, 2012 nice pic andy, legit +SN with fat flakes Yep. Hard to capture winter scenes sometime. Taking pics with my iphone probably doesn't help. Link to comment Share on other sites More sharing options...
Natester Posted December 20, 2012 Share Posted December 20, 2012 You know, if this snowstorm occured 2 months ago, there would have been tons of damage and widespread power outages. Link to comment Share on other sites More sharing options...
dmc76 Posted December 20, 2012 Share Posted December 20, 2012 meh... run of the mill Madison Link to comment Share on other sites More sharing options...
Gilbertfly Posted December 20, 2012 Share Posted December 20, 2012 LOT update.... NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL1047 AM CST THU DEC 20 2012 .MESOSCALE DISCUSSION... 1040 AM CST THE IMPRESSIVELY STRONG WINTER SYSTEM IS FOR THE MOST PART UNFOLDING SO FAR AS TO PLAN...WITH NO IMMINENT CHANGES PLANNED TO HEADLINES...TIMING...OR FORECAST SNOWFALL AMOUNTS. THE MORNING SATELLITE AND HAND UPPER AIR AND SURFACE ANALYSES REVEAL A CLASSIC MID-LATITUDE CYCLONE. THE CLOSED UPPER LOW IS SWINGING NEGATIVELY TITLED LATE THIS MORNING...WITH A DRY SLOT HAVING ENVELOPED THE SOUTHEAST TWO-THIRDS OF THE FORECAST AREA...INCLUDING CHICAGO. ARCS OF SHOWERS...WITH A CONVECTIVE-LIKE APPEARANCE ON RADAR...CONTINUE TO DEVELOP WITHIN THIS DRY SLOT ACROSS WEST CENTRAL TO CENTRAL IL AND PROPAGATE NORTHWARD INTO THE COOL SECTOR. THESE HAVE BEEN MOVING INTO A WELL ESTABLISHED HEAVY SNOW BAND...NOW CENTERED NEAR THE MISSISSIPPI RIVER INTO SOUTHWEST/SOUTH CENTRAL WI. THIS LINES UP PERFECTLY WITH A SYNOPTICALLY FAVORED AREA IN THIS STORM SYSTEM FOR THE MOST INTENSE DYNAMICS...TIGHTEST THERMAL GRADIENT...AND WIND AND MOISTURE CONVERGENCE. IN ADDITION...THE RAP CONTINUES TO ANALYZE DEEP LIFT BEING CROSS-HAIRED WITHIN THE DENDRITIC GROWTH ZONE...OWING TO MORE EFFICIENT SNOW PRODUCTION IN THIS AREA...AND ESPECIALLY WHEN CONSIDERING PWATS ARE NEAR 0.70 AND INFLOW MIXING RATIOS ARE 3.5-5.0 G/KG. VISIBILITIES UNDERNEATH THIS SNOW BAND HAVE REGULARLY BEEN UNDER ONE HALF MILE...AND A ONE INCH PER HOUR RATE WAS ALREADY OBSERVED IN ROCK ISLAND IL. THE SURFACE LOW IS CENTERED NEAR LACON AND MOVING NORTHEAST WITH THE PRESSURE FALL/RISE COUPLET MAGNITUDE AT 7MB/9MB RESPECTIVELY. SHOWER AND THUNDER POTENTIAL EAST... WHILE THE DRY SLOT HAS MINIMIZED MUCH OF THE AREAL COVERAGE OF MODERATE TO HEAVY RAIN SEEN EARLIER THIS MORNING...SCATTERED CONVECTIVE ECHOES ARE DEVELOPING ALONG AN IMMEDIATE PRE-FRONTAL TROUGH ACROSS EAST CENTRAL IL. THE PRE-FRONTAL AIR MASS HAS SURFACE DEW POINTS OF 45 TO EVEN THE LOWER 50S AS FAR NORTH AS NORTHWEST/WEST CENTRAL IN. WHILE NO LOW-LEVEL CAPE IS ANALYZED BY DIAGNOSTIC GUIDANCE AS OF 10 AM...ADAPTED FORECAST SOUNDINGS WITH 54F/50F DO PRODUCE AROUND 50 J/KG OF 0-3 KM CAPE THROUGH 20Z. WITH THE DYNAMIC WIND FIELD...THERE MAY BE A BRIEF WINDOW OF GUSTY WIND POTENTIAL WITH THIS ACROSS NORTHWEST IN...THOUGH NO EXPLICIT CONVECTIVE MODELS THAT WERE LOOKED AT PRODUCE ANYTHING LOOKING OVERLY OMINOUS. ACROSS CHICAGO...PERIODS OF LIGHT TO MODERATE SHOWERS SHOULD PREVAIL THROUGH MUCH OF THE DAY WITHIN THE LOW-LEVEL MOISTURE TRANSPORT UNDER DEEP HEIGHT FALLS/DIFFLUENCE OWING TO ASCENT. RAIN TO SNOW TIMING...VARIOUS THICKNESS AND WET BULB ANALYSIS TECHNIQUES ON THE RAP FOR PRECIP TYPE CHANGE LINE UP VERY WELL WITH THE OBSERVED CHANGE OVER...AND THESE ARE ALL FORECAST TO CREEP EASTWARD AS THE SURFACE WINDS TURN MORE NNW LOWERING BOUNDARY LAYER TEMPERATURES. THERE HAS BEEN A REPORT OF SNOW MIXING IN JUST NORTHWEST OF ROCKFORD AND WITH CONTINUED DYNAMIC AND ADVECTIVE COOLING IT SHOULD REACH ROCKFORD SOON. THE CHANGE OVER LINE SHOULD BE NORTH-TO-SOUTH ORIENTED AROUND NOON AND LIKELY SWING NORTHWEST TO SOUTHEAST ORIENTED BY LATE AFTERNOON AS IT APPROACHES CHICAGO. THE CHANGE SHOULD ALSO PICK UP IN PROGRESSION SPEED IN THE WAKE OF THE SURFACE LOW AND UNDERNEATH THE RAPID COOLING OF THE UPPER LOW. SNOWFALL AND WIND...WITH CURRENT RADAR AND SATELLITE TRENDS AND THE PROJECTED PATH OF THE LOW AND ASSOCIATED DEFORMATION...THE MOST INTENSE SNOWFALL AREA/BANDS WITH RATES OF ONE INCH OR GREATER PER HOUR SHOULD SLOWLY WORK EASTWARD NORTH OF I-80 THROUGH THE AFTERNOON. SHORT TERM MODEL FORECASTS OF PRECIP AND VISIBILITY AGREE WITH THIS EVOLUTION. RATES OF TWO INCHES PER HOUR ARE POSSIBLE TOWARD ROCKFORD/BELVIDERE/DIXON GIVEN SOME OF THE 40 PLUS DBZ /NOT ASSOCIATED WITH BRIGHT BANDING/ SEEN ALREADY AND PER THE FORECAST INSTABILITY...BOTH SLANTWISE AND EVEN UPRIGHT IN FORECAST SOUNDINGS/CROSS SECTIONS. WINDS HAVE BEEN GUSTING IN EXCESS OF 40 KT ACROSS MUCH OF IA AND MO AND WITH THE DEEPENING OF THE SYSTEM AND CONTINUED STRENGTHENING COLD AIR ADVECTION...THESE TYPES OF GUSTS WILL ONLY INCREASE AS THEY ROTATE EAST INTO THE AREA WHICH MATCHES WELL WITH THE 50-60 MPH WINDS SEEN IN THE BOUNDARY LAYER OF NAM AND GFS AND SURPRISING EVEN THE RAP. WILL HAVE TO WATCH TO SEE IF THE BLIZZARD WARNING WILL NEED TO BE EXPANDED SOUTH OR EAST...TO INCLUDE COUNTIES SUCH AS DEKALB AND LASALLE. ALSO WITH AS FAR SOUTH AS SNOW HAS BEEN OBSERVED TO THE WEST AND THE EXTENT OF THE TROWAL...THERE IS NO DOUBT IT WILL SNOW IN THE HIGH WIND WARNING AREA OF THE SOUTHERN CWA. IT IS JUST UNCERTAIN ON HOW INTENSE IT WILL BE. WILL CONTINUE TO MENTION BLOWING SNOW AS A SECONDARY IMPACT IN THE NPW. Link to comment Share on other sites More sharing options...
wisconsinwx Posted December 20, 2012 Share Posted December 20, 2012 meh... run of the mill Madison I know, run of the mill foot plus for some areas plus 35-40 mph sustained winds on the backside. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted December 20, 2012 Share Posted December 20, 2012 KBRL 201653Z AUTO 34025G36KT 1/4SM +SN VV004 00/ A2926 RMK AO2 PK WND 34039/1558 FZRAE06SNB06 SLP912 T0000 PNO $ KUIN 201654Z AUTO 31024G31KT 1/4SM +SN FG VV004 00/M01 A2931 RMK AO2 PK WND 31031/1653 RAE02SNB02 SLP927 P0002 T00001011 Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 nice little update from LOT...they're probably glad to have something exciting to do for the first time in 6 months Link to comment Share on other sites More sharing options...
Justin Posted December 20, 2012 Share Posted December 20, 2012 Very heavy snow for the last hour hour and a half. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted December 20, 2012 Share Posted December 20, 2012 Solid discussion from LOT Link to comment Share on other sites More sharing options...
Gilbertfly Posted December 20, 2012 Share Posted December 20, 2012 MESOSCALE DISCUSSION 2191 NWS STORM PREDICTION CENTER NORMAN OK 1052 AM CST THU DEC 20 2012 AREAS AFFECTED...FAR NERN MO...FAR ERN IA...CNTRL/NRN IL CONCERNING...BLIZZARD VALID 201652Z - 202245Z SUMMARY...BLIZZARD CONDITIONS WILL OVERSPREAD AREAS ALONG AND EAST OF THE MS RIVER LATE THIS MORNING INTO THE AFTERNOON...AS A STRONG SFC LOW DEEPENS AND SNOWFALL INTERACTS WITH VERY STRONG WINDS. DISCUSSION...RECENT WATER VAPOR/IR SATELLITE LOOPS DEPICT A WELL-DEFINED COMMA HEAD STRUCTURE WITH A COMPACT VORT CENTER APPROACHING THE MS RIVER N OF ST. LOUIS. AN ASSOCIATED 985-MB SFC LOW IS ANALYZED JUST NW OF PEORIA AT 16Z. ENHANCED CONVECTIVE INSTABILITY AND WEAK WAA WITHIN THE BRANCH OF THE BIFURCATED WARM CONVEYOR BELT THAT WRAPS AROUND THE CYCLONE WILL SUPPORT BANDS OF MODERATE TO LOCALLY HEAVY SNOW W/SW OF THE SFC LOW...WHICH IS FORECAST TO TRACK NEWD AND REACH CHICAGO BY MID/LATE AFTERNOON. SNOWFALL RATES OF 0.5-1 IN/HR WILL BE COMMON WITH THIS ACTIVITY. AN ISOLATED LIGHTNING STRIKE MAY OCCUR WITH THE MOST INTENSE SNOWFALL RATES. THE TIGHT SFC PRESSURE GRADIENT WITHIN THE WRN SEMICIRCLE OF THE LOW WILL FURTHER TIGHTEN AS THE LOW DEEPENS AT A RATE OF 0.5 TO 1 MB PER HOUR. THIS IS IN RESPONSE TO ITS INTERACTION WITH A SECONDARY SUBTLE VORT MAX NEAR THE APEX OF THE DRY SLOT CURLING INTO THE COMMA HEAD NEAR CHICAGO. FORECAST SOUNDINGS SUGGEST 45-60 KT OF 0-1-KM MEAN FLOW EVOLVING WITHIN THE SWRN QUADRANT OF THE LOW...WHICH WILL LIKELY BECOME MANIFESTED AT THE SFC AS WLY TO NWLY WINDS OF 35-50 MPH WITH GUSTS REACHING 60 MPH. HIGH-RESOLUTION GUIDANCE SUGGESTS THAT THE SPATIOTEMPORAL PHASING OF THESE WINDS WITH THE SNOW FOR 2-4 HOURS WILL OCCUR...CREATING BLIZZARD CONDITIONS WITH NEAR-ZERO VISIBILITIES. BLIZZARD CONDITIONS WILL LIKELY MOVE ACROSS THE MS RIVER PRIOR TO 18Z...REACHING A LINE FROM NEAR ROCKFORD TO SPRINGFIELD BY 20Z...AND A LINE EXTENDING FROM E OF ROCKFORD TO NEAR BLOOMINGTON/NORMAL BY 22Z. INITIALLY...RAIN/SLEET MAY BRIEFLY MIX WITH THE PRECIPITATION BEFORE A QUICK PHASE CHANGE TO SNOW OCCURS AS THE LOWER TROPOSPHERE COOLS. ..COHEN.. 12/20/2012 ATTN...WFO...LOT...ILX...LSX...DVN... Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 Very heavy snow for the last hour hour and a half. pics? Link to comment Share on other sites More sharing options...
Luftfeuchtigkeit Posted December 20, 2012 Share Posted December 20, 2012 Still really coming down out there. Went from a period of moderate to heavy snow back to being really heavy. Measured 0.9" in last 30 minutes, 12.0" total. No thunder so far this morning. Really getting windy so this may be close to the end of being able to easily measure it. In the last hour it's really started to drift whereas before it wasn't moving around too much. Keep it coming!! Link to comment Share on other sites More sharing options...
gosaints Posted December 20, 2012 Share Posted December 20, 2012 Still snowing at a good clip here just across the river from la crosse. La crosse nws reported 6 inches at 930. Probably close to 8 or so when it quits. Took a drive up on the ridge. Whole different world up there. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted December 20, 2012 Share Posted December 20, 2012 All Southwest Airlines flights have been cancelled in/out of Midway starting at 4:30 this afternoon. Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 ripple after ripple moving into Madison. Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 All Southwest Airlines flights have been cancelled in/out of Midway starting at 4:30 this afternoon. flying southwest out of MDW is dangerous as it is....and there's a history there Link to comment Share on other sites More sharing options...
dmc76 Posted December 20, 2012 Share Posted December 20, 2012 ripple after ripple moving into Madison. 20"?? Possible Link to comment Share on other sites More sharing options...
Natester Posted December 20, 2012 Share Posted December 20, 2012 The frequency of the flickering of power has increased quite a bit in the past 30 minutes. Might lose power I'm afraid and this is only for about 5-6 inches of wet snow. Link to comment Share on other sites More sharing options...
TimChgo9 Posted December 20, 2012 Share Posted December 20, 2012 Like LOT's discussion. Talking to my boss about whether or not I should take the day off, 50 to 60 mph gusts almost guarantee power outages, or because of the "smart grid" I am on, lots of power drops as ComEd switches us between grids. This is going to be interesting to watch as it unfolds. On the bright side, my landlord cut down the trees near the house, considering them a hazard if we get high winds, he also had the large tree in the back yard cut way back, and all of the dead branches removed, so that is one less thing to worry about, as well as the tree that hangs over the driveway. Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 20"?? Possible That's what i said earlier...plenty of reports coming out of nearly 2" per hour rates and radar shows another 6 hrs of solid cranking to go. Link to comment Share on other sites More sharing options...
gosaints Posted December 20, 2012 Share Posted December 20, 2012 Really impressed with the staying power of the little band located over la crosse right now Link to comment Share on other sites More sharing options...
Natester Posted December 20, 2012 Share Posted December 20, 2012 10087 customers out in just Linn County according to Alliant Energy. I still have power and lights haven't flickered in 10 minutes. Link to comment Share on other sites More sharing options...
Geos Posted December 20, 2012 Share Posted December 20, 2012 Jefferson, WI looks pretty nasty now. Link to comment Share on other sites More sharing options...
Fickle Heights Posted December 20, 2012 Share Posted December 20, 2012 Some wind damage here. Poplar tree snapped at the base, about a foot in diameter. It may have been weakened by the drought this summer. Winds have been gusting to 35 pretty regularly. Link to comment Share on other sites More sharing options...
LizardMafia Posted December 20, 2012 Share Posted December 20, 2012 Temps on the rise across Indiana, Terre Haute up to 56 and Vincennes up to 57. Link to comment Share on other sites More sharing options...
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