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March 2nd-4th Winter Storm


Powerball

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dryslot will be a bigger concern for you, although i'm not sure what side of MKE you are on, obviously W and N are better.

Right now I'm right near downtown, live just west of the city. The low, if anything, at 992, is a tad deeper than the NAM and GFS are progging (esp the NAM, with 992.9 at 18z).

Also, as I was saying, the 12z GFS has us nowhere near a dryslot, and the NAM doesn't either. I understand it's nowcast time, but those would be huge busts if we get dryslotted.

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URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI

1017 AM CST FRI MAR 2 2012

...INTENSE SNOWFALL THIS AFTERNOON AND EVENING...

.LOW PRESSURE IS EXPECTED TO RAPIDLY INTENSIFY AS IT MOVES FROM

SOUTHERN ILLINOIS AND INTO LOWER MICHIGAN BY THIS EVENING. WHILE

SOME WARMER AIR WILL LINGER IN FAR SOUTHEAST WISCONSIN AT THE

ONSET OF THE PRECIPITATION...THE STRENGTHENING LOW WILL ALLOW ANY

RAIN IN THE SOUTHEAST TO MIX WITH AND CHANGE OVER TO SNOW BY 4 PM

ON FRIDAY. ACCUMULATIONS OF 6 TO 9 INCHES ARE LIKELY WITH LOCALLY

HIGHER AMOUNTS POSSIBLE. SOME OF THE MOST INTENSE SNOWFALL...WITH

RATES APPROACHING 2 INCHES PER HOUR FOR A TIME... WOULD BE

OCCURRING DURING THE EVENING RUSH HOUR. THIS WILL BE A WET HEAVY

SNOW. THE MODEL TRACK OF THIS INTENSIFYING LOW PRESSURE SYSTEM IS

A CLASSIC TRACK FOR HEAVY SNOW IN SOUTHERN WISCONSIN.

WIZ051-052-058>060-030030-

/O.CON.KMKX.WS.W.0001.120302T2100Z-120303T0600Z/

FOND DU LAC-SHEBOYGAN-DODGE-WASHINGTON-OZAUKEE-

INCLUDING THE CITIES OF...FOND DU LAC...SHEBOYGAN...BEAVER DAM...

WEST BEND...PORT WASHINGTON

1017 AM CST FRI MAR 2 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS

AFTERNOON TO MIDNIGHT CST TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON

TO MIDNIGHT CST TONIGHT.

* TIMING...A MIX OF RAIN AND SNOW WILL SPREAD INTO SOUTHERN

WISCONSIN BY AFTERNOON. HEAVY SNOW IS EXPECTED TO DEVELOP BY MID

TO LATE AFTERNOON...A BIT LATER BY THE LAKE SHORE...AND CONTINUE

THROUGH THE EVENING.

* SNOW ACCUMULATIONS...6 TO 9 INCHES.

* WINDS...NORTHEAST 10 TO 20 MPH WILL INCREASE TO 15 TO 30 MPH

AND GRADUALLY SHIFT TO THE NORTH...THEN NORTHWEST LATER

TONIGHT. HIGHER WIND GUSTS ARE POSSIBLE NEAR THE LAKESHORE.

* IMPACTS...DETERIORATING TRAVEL CONDITIONS WITH THE HEAVY SNOW.

SNOW COVERED ROADS AND REDUCED VISIBILITIES ARE EXPECTED FOR THE

EVENING RUSH HOUR. SOME THUNDER SNOW IS ALSO POSSIBLE FROM LATE

AFTERNOON THROUGH EARLY EVENING OVER THE SOUTHEAST... WHICH

COULD LEAD TO 2 INCH PER HOUR SNOW RATES AND NEAR WHITEOUT

CONDITIONS.

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Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE CHICAGO IL

1029 AM CST FRI MAR 2 2012

...A PERIOD OF HEAVY SNOWFALL EXPECTED ACROSS FAR NORTHERN

ILLINOIS LATE THIS AFTERNOON AND THIS EVENING...

.A RAPIDLY DEVELOPING STORM SYSTEM WILL LIFT NORTHEASTWARD

THROUGH CENTRAL ILLINOIS BY AROUND NOON. AS THE SYSTEM CONTINUES

TO THE NORTHEAST...THROUGH NORTHERN INDIANA AND INTO SOUTHERN

LOWER MICHIGAN...IT WILL RAPIDLY DEEPEN AS COLDER AIR IS DRAWN INTO

THE SYSTEM. RAIN OVERSPREADING THE AREA WILL TRANSITION OVER TO

SNOW AND A RAIN SNOW MIX BY MID AFTERNOON AND ALL SNOW BY LATE

THIS AFTERNOON AND EARLY EVENING. THERE IS THE POSSIBILITY OF

SNOWFALL RATES ONE INCH PER HOUR. STRONG NORTHERLY WINDS ARE ALSO

EXPECTED TO DEVELOP AS THE SYSTEM INTENSIFIES. THE SNOW WILL TAPER

OFF THIS EVENING AS THE MAIN LOW PRESSURE SYSTEM PULLS OFF TO THE

NORTHEAST.

ILZ010>012-030030-

/O.NEW.KLOT.WW.Y.0007.120302T2100Z-120303T0300Z/

LEE-DE KALB-KANE-

INCLUDING THE CITIES OF...DIXON...DEKALB...AURORA

1029 AM CST FRI MAR 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO

9 PM CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER

WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT

FROM 3 PM THIS AFTERNOON TO 9 PM CST THIS EVENING.

* TIMING...RAIN WILL CHANGE TO SNOW BY MID TO LATE AFTERNOON. THE

SNOW WILL CONTINUE EARLY THIS EVENING BEFORE TAPERING OFF.

PERIODS OF HEAVY SNOW WITH ACCUMULATIONS UP TO AN INCH AN HOUR

ARE POSSIBLE DURING THE AFTERNOON.

* ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE

EXPECTED ACROSS THE ADVISORY AREA.

* MAIN IMPACT...THE SNOW MAY BE HEAVY AT TIMES. THIS WILL ALLOW

SNOW TO QUICKLY ACCUMULATE ON AREA ROADS MAKING TRAVEL HAZARDS BY

LATE THIS AFTERNOON AND INTO THE EVENING.

* OTHER IMPACTS...DUE TO THE HIGH LIQUID CONTENT OF THE SNOW...

THOSE WITH HEALTH CONCERNS SHOULD USE CAUTION WHEN SHOVELING.

THE HEAVY WET SNOW MAY ALSO LEAD TO WEIGHTED DOWN BRANCHES AND

POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW

WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW

COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE

DRIVING.

&&

$$

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wasn't expecting this..

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE CHICAGO IL

1029 AM CST FRI MAR 2 2012

...A PERIOD OF HEAVY SNOWFALL EXPECTED ACROSS FAR NORTHERN

ILLINOIS LATE THIS AFTERNOON AND THIS EVENING...

.A RAPIDLY DEVELOPING STORM SYSTEM WILL LIFT NORTHEASTWARD

THROUGH CENTRAL ILLINOIS BY AROUND NOON. AS THE SYSTEM CONTINUES

TO THE NORTHEAST...THROUGH NORTHERN INDIANA AND INTO SOUTHERN

LOWER MICHIGAN...IT WILL RAPIDLY DEEPEN AS COLDER AIR IS DRAWN INTO

THE SYSTEM. RAIN OVERSPREADING THE AREA WILL TRANSITION OVER TO

SNOW AND A RAIN SNOW MIX BY MID AFTERNOON AND ALL SNOW BY LATE

THIS AFTERNOON AND EARLY EVENING. THERE IS THE POSSIBILITY OF

SNOWFALL RATES ONE INCH PER HOUR. STRONG NORTHERLY WINDS ARE ALSO

EXPECTED TO DEVELOP AS THE SYSTEM INTENSIFIES. THE SNOW WILL TAPER

OFF THIS EVENING AS THE MAIN LOW PRESSURE SYSTEM PULLS OFF TO THE

NORTHEAST.

ILZ010>012-030030-

/O.NEW.KLOT.WW.Y.0007.120302T2100Z-120303T0300Z/

LEE-DE KALB-KANE-

INCLUDING THE CITIES OF...DIXON...DEKALB...AURORA

1029 AM CST FRI MAR 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO

9 PM CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER

WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT

FROM 3 PM THIS AFTERNOON TO 9 PM CST THIS EVENING.

* TIMING...RAIN WILL CHANGE TO SNOW BY MID TO LATE AFTERNOON. THE

SNOW WILL CONTINUE EARLY THIS EVENING BEFORE TAPERING OFF.

PERIODS OF HEAVY SNOW WITH ACCUMULATIONS UP TO AN INCH AN HOUR

ARE POSSIBLE DURING THE AFTERNOON.

* ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE

EXPECTED ACROSS THE ADVISORY AREA.

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looking more like all Chicago is going to see out of this is some drizzle and a dryslot. Can't wait for next week.

hmmm. looks to me like we will be solidly in the tail of the deformation band. Maybe I'm projecting radar trends wrong. Note: LOT's recent aviation discussion still hints at the possibility of heavy snow, albeit briefly. These spring scenarios are brutal for planning purposes. :cry:

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hmmm. looks to me like we will be solidly in the tail of the deformation band. Maybe I'm projecting radar trends wrong. Note: LOT's recent aviation discussion still hints at the possibility of heavy snow, albeit briefly. These spring scenarios are brutal for planning purposes. :cry:

LOT is leaning that way...I'm totally not seeing it. Either way best case this is a sloppy inch for me. Good luck with your clients, hope they get burried.

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LOT is leaning that way...I'm totally not seeing it. Either way best case this is a sloppy inch for me. Good luck with your clients, hope they get burried.

O.NEW.KLOT.WW.Y.0007.120302T2100Z-120303T0600Z/

DUPAGE-COOK-

INCLUDING THE CITIES OF...WHEATON...CHICAGO

1029 AM CST FRI MAR 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO

MIDNIGHT CST TONIGHT...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER

WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 PM THIS

AFTERNOON TO MIDNIGHT CST TONIGHT.

* TIMING...RAIN WILL CHANGE TO SNOW ACROSS DUPAGE AND NORTHERN

COOK COUNTY LATE THIS AFTERNOON. THE SNOW WILL CONTINUE THIS

EVENING BEFORE TAPERING OFF BY LATE EVENING.

* ACCUMULATIONS...TOTAL SNOW ACCUMULATIONS WILL VARY WIDELY ACROSS

COOK COUNTY. ACROSS NORTHERN COOK COUNTY 3 TO 5 INCHES ARE

EXPECTED. AMOUNTS WILL DROP QUICKLY TO AN INCH OR TWO IN THE

CITY OF CHICAGO...AND UNDER AN INCH ACROSS FAR SOUTHERN COOK

COUNTY.

* MAIN IMPACT...THE SNOW MAY BE HEAVY AT TIMES. THIS WILL ALLOW

SNOW TO QUICKLY ACCUMULATE ON AREA ROADS MAKING TRAVEL HAZARDS BY

LATE THIS AFTERNOON AND INTO THE EVENING.

* OTHER IMPACTS...DUE TO THE HIGH LIQUID CONTENT OF THE SNOW...

THOSE WITH HEALTH CONCERNS SHOULD USE CAUTION WHEN SHOVELING.

THE HEAVY WET SNOW MAY ALSO LEAD TO WEIGHTED DOWN BRANCHES AND

POWER LINES.

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MODEL DIAGNOSTIC DISCUSSION

NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD

1141 AM EST FRI MAR 02 2012

VALID MAR 02/1200 UTC THRU MAR 06/0000 UTC

...SEE NOUS42 KWNO ADMNFD FOR THE STATUS OF THE UPPER AIR INGEST...

12Z NAM/GFS EVALUATION AND PRELIMINARY PREFERENCES

ANY INITIALIZATION ERRORS WITH THE NAM AND GFS DO NOT APPEAR TO

SIGNIFICANTLY IMPACT THEIR SOLUTIONS.

...SURFACE WAVE TRACKING ACROSS THE UPPER MIDWEST ON FRIDAY...

PRELIM PREFERENCE: GENERAL MODEL COMPROMISE

THERE IS LITTLE MODEL SPREAD WITH THE SURFACE LOW AS IT TRACKS

THROUGH THE UPPER MIDWEST ON FRIDAY...AND THE 12Z NAM/GFS FIT IN

WELL WITH THE 00Z/06Z MODEL CONSENSUS.

...STRONG SURFACE CYCLONE MOVING FROM THE MIDDLE MISSISSIPPI

VALLEY TO SOUTHEASTERN CANADA...

...TRAILING COLD FRONT PUSHING TROUGH THE EASTERN U.S....

PRELIM PREFERENCE: BLEND OF THE 00Z ECMWF/UKMET

MODELS ARE IN GOOD AGREEMENT WITH TRACKING THE SURFACE LOW INTO

THE UPPER GREAT LAKES FRIDAY NIGHT...BUT DIFFERENCES IN THE

STRENGTH OF THE LOW DEVELOP EARLY IN THE FORECAST PERIOD. THE 12Z

GFS QUICKLY BECOMES THE DEEPEST WITH THE CYCLONE...WHILE 00Z ECMWF

BECOMES THE WEAKEST. THE NAM HAS BEEN FAIRLY CONSISTENT WITH THIS

FEATURE...WITH THE 12Z RUN INDICATING A SURFACE LOW A LITTLE

WEAKER THAN THE 12Z GFS...BUT STRONGER THAN THE 00Z ECMWF. THE

12Z GFS HAS ADJUSTED SLIGHTLY WEAKER WITH THE STRENGTH OF THE LOW

COMPARED TO ITS 00Z AND 06Z RUNS. THE 00Z CMC...AND TO A LESSER

EXTENT...THE 00Z UKMET BOTH LEAN TOWARDS THE WEAKER ECMWF

SOLUTION. IN REGARDS TO THE TRAILING COLD FRONT PUSHING TOWARDS

THE EASTERN U.S. ON FRIDAY...THE 12Z NAM/GFS FIT IN WELL WITHIN

THE ENVELOPE OF SOLUTIONS. DESPITE THE DECENT CLUSTERING WITH THE

LOCATION OF THE SURFACE LOW AND TIMING OF THE TRAILING COLD FRONT

FRONT...A BLEND OF THE 00Z ECMWF/UKMET SHOULD BEST ACCOUNT FOR THE

SLIGHT FAVORING TOWARDS A WEAKER SURFACE LOW THAN THE 12Z GFS

SUGGESTS.

us.namptype12-05.gif

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