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Major LES Event


TheWeatherPimp

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

725 PM CST SUN DEC 12 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0720 PM HEAVY SNOW VALPARAISO 41.48N 87.05W

12/12/2010 M4.0 INCH PORTER IN NWS EMPLOYEE

FOUR INCHES OF SNOW IN THE PAST 3 HOURS. STORM TOTAL

ESTIMATED AROUND 7 INCHES.

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

725 PM CST SUN DEC 12 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0720 PM HEAVY SNOW VALPARAISO 41.48N 87.05W

12/12/2010 M4.0 INCH PORTER IN NWS EMPLOYEE

FOUR INCHES OF SNOW IN THE PAST 3 HOURS. STORM TOTAL

ESTIMATED AROUND 7 INCHES.

Beat me to it...

Anyway, Michigan City and Western Starke County likely getting 2"+ per hour snowfall rates with that band. It looks mighty healthy.

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Western LaPorte into Northern Starke absolutely getting destroyed. Definitely will be 1'+ totals in that band..probably 2' near Michigan City.

The band right now looks eerily like that WRF run that Bo posted. Just a firehose from La Porte county all the way through areas just east of LAF.

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Hope we can get that band to shift a bit east later on tonight or in the morning, its just off to my west. How's the snow under that band this far south? Is it worth staying up for? Ive never seen LE this far south!

sometime is this set up you can get LES all the way into KY as what is left of the moisture gets upsloped over the higher terrian

Ihave seen actully solid plumes (although light) all the way to the OH river with scattered patches into KY and even N TN

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Took around 10 measurements and they all came up between about 7.9" and 8.5". It seems way high, but I really don't know what else to do. Drifts up to about 3 or 3.5 feet. A lot of these drifts are on the roadways, too.

Anyway, say my measurements are correct. Then, with the 0.5" taken off from the system, I would have received 7.4-8.0" of snow via the lake, making it the largest lake effect event here in 10 years.

This event is going to remain in my memory for a long time because of the winds and impact.

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PRELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
1134 PM EST SUN DEC 12 2010     

.TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON     
.DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE.                
..REMARKS..    

1130 PM     HEAVY SNOW       BENTON HARBOR           42.12N  86.45W  
12/12/2010  M7.5 INCH        BERRIEN            MI   TRAINED SPOTTER   

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0630Z MESOSCALE UPDATE

WELL DEFINED LAKE BAND EXTENDING THE FULL LENGTH OF THE STATE

EARLY THIS MORNING. AS OF 130 AM...THIS BAND EXTENDED OFF LAKE

MICHIGAN SOUTH INTO EASTERN CARROLL COUNTY...THEN SOUTHEAST INTO

THE NORTHERN/NORTHEAST INDY METRO...CONTINUING THROUGH WESTERN

HANCOCK...SHELBY AND DECATUR COUNTIES. RADAR TRENDS OVER THE LAST

TWO HOURS INDICATE A SUBTLE SHIFT EAST ON THE ORDER OF 10-20

MILES...ESPECIALLY FROM THE INDY METRO NORTH THROUGH CARROLL

COUNTY. ADDITIONAL HEAVIER RETURNS NOTED BEHIND THE BAND OVER

BOONE AND HENDRICKS COUNTY. THIS ACTIVITY POISED TO EXPAND BACK

ACROSS THE ENTIRE INDY METRO AREA BY 230 AM. MODERATE SNOWFALL WAS

OCCURRING WITHIN THE BAND WITH VISIBILITIES GREATLY REDUCED AT

TIMES. PRESENCE OF WIND GUSTS OVER 30MPH CONTINUE TO EXACERBATE

TRAVEL WITH BLOWING AND DRIFTING OF ROADWAYS ONGOING.

MOST CURRENT SHORT TERM MODEL GUIDANCE FROM RAPID REFRESH AND RUC

INDICATE THAT LOW LEVEL WIND FLOW WILL REMAIN FROM THE NORTH-

NORTHWEST OVER THE NEXT FEW HOURS AS A POTENT MID LEVEL VORT LOBE

SWINGS SOUTH ACROSS THE REGION. A SUBTLE VEERING OF FLOW TO A MORE

NORTHERLY DIRECTION IS NOTED BETWEEN 08Z AND 12Z. HAVE A FEELING

THAT THIS MAY PROMPT THE BAND TO REMAIN STEADY STATE FOR THE NEXT

HOUR OR TWO...THEN BEGIN TO SHIFT BACK WEST SLIGHTLY THROUGH THE

REMAINDER OF THE OVERNIGHT LIKELY ENCOMPASSING THE INDY METRO AREA

ONCE AGAIN.

ADDITIONAL ACCUMULATIONS ON THE ORDER OF ONE TO POSSIBLY AS MUCH

AS TWO INCHES WILL BE POSSIBLE THROUGH DAYBREAK UNDERNEATH AND IN

VICINITY OF THE MAIN LAKE MICHIGAN BAND. ELSEWHERE...LIGHTER AND

MORE SCATTERED SNOW SHOWERS WILL COMBINE WITH THE GUSTY NORTHWEST

WINDS TO MAINTAIN A CONTINUATION OF BLOWING AND DRIFTING OF

SNOWFALL WITH A REDUCTION IN VISIBILITIES.

PREVIOUS NEAR TERM DISCUSSION FROM 945 PM SUNDAY EVENING FOLLOWS.

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