PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1140 AM MST THU DEC 18 2014 ...STORM TOTAL SNOW AS OF THURSDAY MORNING... LOCATION STORM TOTAL TIME/DATE ELEVATION SNOWFALL OF /INCHES/ MEASUREMENT ...GRAHAM COUNTY... MOUNT GRAHAM 6.0 900 AM 12/18 10600 FT 3 S MOUNT GRAHAM 3.5 900 AM 12/18 9000 FT ...GREENLEE COUNTY... HANNAGAN MEADOW 6.0 1100 AM 12/18 8900 FT 6 NE HANNAGAN MEADOW 1.0 1100 AM 12/18 8000 FT ...PIMA COUNTY... 3 SE SUMMERHAVEN 9.0 900 AM 12/18 7900 FT MT LEMMON SKI 8.0 900 AM 12/18 9100 FT SUMMERHAVEN 8.0 900 AM 12/18 7800 FT 2 SE SUMMERHAVEN 6.5 900 AM 12/18 8200 FT
Although there was more snowfall during day yesterday, I
have not seen any updated information.
About 60% of the ALERT network stations measured additional
rainfall yesterday. Two mountain sites had 0.31", 7 sites
had 0.20" or more, and other reports were light. Here at
house we had mid-morning showers that produced another
0.04".
This morning it is cold and frosty here and some spots in
Arizona are reporting thick fog this early morning.
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Christmas is now within seven days and here is update on
what ECMWF and GFS global models are forecasting for North America.
These 168-h 500 mb and sfc forecasts are again valid at 5 pm MST Christmas afternoon (as per the earlier post showing 240-h forecasts). Top forecasts are from the ECMWF and those below are from the GFS,
The ECMWF continues to forecast a strong, winter storm system over the West. It is now forecasting a considerably stronger storm just northeast of the Great Lakes Region that would bring lake effect snows and general snows for much of New England. Features in the ECMWF forecast continue much stronger than similar features within the GFS forecast.
The GFS forecasts seem to be trending toward the ECMWF solutions. The GFS now forecasts a wintry, upslope storm from Colorado to Montana. The storm impacting the Great Lakes and New England is shifted north over Hudson's Bay, with mostly lake effect snows within its forecast.
Will check back a couple more times as the Holiday approaches. Air travel could be snarled the day before Christmas in Chicago and the big Northeast Airports. Travel after Christmas could be difficult through Denver and Chicago, so stay alert if you're heading those directions.
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