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December 26th - 27th Blizzard Part 4


Powerball

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MESOSCALE DISCUSSION 2238

NWS STORM PREDICTION CENTER NORMAN OK

0229 PM CST WED DEC 26 2012

AREAS AFFECTED...SRN LOWER MI...FAR NRN INDIANA

CONCERNING...HEAVY SNOW

VALID 262029Z - 262330Z

SUMMARY...BANDS OF SNOW WITH RATES LOCALLY APPROACHING 1 IN/HR WILL

CONTINUE THROUGH AROUND 23Z...WITH SNOW RATES EXPECTED TO DECREASE

THEREAFTER.

DISCUSSION...BANDS OF MODERATE TO LOCALLY HEAVY SNOW ROUGHLY ALIGN

WITH A NE/SW-ORIENTED AXIS OF 850-MB CONFLUENCE...NW OF THE CENTER

OF DEEP LOW PRESSURE OVER THE ERN CONUS. RADAR MOSAIC IMAGERY AS OF

AROUND 2020Z INDICATES ONE BAND CENTERED 30 NE MTC TO 25 SW

JXN...ANOTHER BAND CENTERED 30 NNE LAN TO 10 SW AZO...AND YET

ANOTHER BAND CENTERED 20 SW GRR TO 20 SW SBN. SFC OBSERVATIONS

SUGGEST THE RECENT OCCURRENCE OF HEAVY SNOW AT PTK AND YIP...AND

SNOW RATES LOCALLY APPROACHING 1 IN/HR MAY OCCUR WITH THE SNOW

BANDS. AS THE LOW-LEVEL FLOW GRADUALLY BACKS WHILE THE CYCLONE

SHIFTS NEWD TO THE SE OF THE AREA...SNOW BANDS MAY GRADUALLY PIVOT

AND BECOME ORIENTED MORE NNE/SSW. HOWEVER...AFTER 23Z...FORCING FOR

ASCENT ACCOMPANYING THE CYCLONE WILL BECOME INCREASINGLY REMOVED

FROM THE AREA WITH A DECREASE IN THE INFLUX OF LOW/MID-LEVEL

MOISTURE. AS SUCH...SNOW RATES ARE EXPECTED TO DECREASE AFTER 23Z.

..COHEN.. 12/26/2012

ATTN...WFO...DTX...IWX...GRR...

LAT...LON 42918254 42578271 42018388 41648472 41458584 41458663

41838667 42538596 43098460 43178353 42918254

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000

NOUS43 KDTX 262118

PNSDTX

MIZ047>049-053>055-060>063-068>070-075-076-082-083-262330-

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI

418 PM EST WED DEC 26 2012

SNOW REPORTS

LOCATION SNOWFALL DURATION

(INCHES) (HOURS) LAT LON

...OAKLAND COUNTY...

4 ENE HOLLY M 0.8 3.5 42.82N 83.55W

FERNDALE E 1.5 3.5 42.46N 83.13W

WHITE LAKE M 2.3 4 42.65N 83.50W

...WASHTENAW COUNTY...

ANN ARBOR M 3.0 3.5 42.28N 83.73W

...WAYNE COUNTY...

5 SSW ROMULUS M 2.0 4 42.16N 83.40W

NORTHVILLE E 3.0 3.5 42.44N 83.49W

ROMULUS M 3.8 4 42.22N 83.37W

M = MEASURED

E = ESTIMATED

$$

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Yeah, it was more of a tongue-in-cheek comment towards those who have lived here their entire life.

To be quite honest, the most intense bursts of snow I've ever seen usually come in the form of Lake Effect, but Blizzard of '99, Jan 22-23 2005, those two are up there along with that February storm in 2011 that was supposed to be an ice storm. I was out shoveling with streaks of lightning going overhead.

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Snow should develop here in Toronto within the next hour. No later than 6pm local time.

I'm rooting for you guys. So far so good down here in SEMI, hoping for the same up there.

OK measured over 10 spots just under 5"

Nice!

I estimate snowfall at 4.2" of powder as of 4:20pm...which means it has been snowing at well over 1"/hr the past 3 hours. Hard to measure with drifting, but it is an absolute winter wonderland!

Yep, about 4" here too. Very pretty and a nice Christmas gift.

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Blizzard Warning criteria has nothing to do with accumulations fwiw

Exactly, winds are not even close to being blizzard warning criteria. And even if this was a Winter Storm Warning, we'd need more than 6". Either type of warning is busting as the the blizzard warning was supposed to be an overlay over the winter storm warning, but CLE's weather software wouldn't allow it:

NOT SURE HOW WE CAN AVOID CALLING IT A BLIZZARD

GIVEN THAT THE HEAVY SNOW/BLOWING SNOW AND GUSTS OF 35 WILL LAST

AT LEAST 3 HOURS...PROBABLY LAST 6-8 HOURS. OUR SOFTWARE MAKES IT

DIFFICULT TO EMBED A BLIZZARD WITH THE WINTER STORM SO WILL JUST

CALL IT A BLIZZARD WEST OF I-71 AND THE LAKE SHORE COUNTIES DUE TO

THE WIND COMING OFF THE LAKE.

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