2-4 inches here, 2-4 inches there, next thing you know, we have a foot

Looks like we are in for a slow-moving storm that will bring regular snow over the next few days. The earlier model runs had a major precipitation event for tonight. Now, we are looking a few inches of snow now and then through Saturday. When the storm has passed, we should have a nice blanket of snow that is 7-12 inches deep. I think it will start after sundown tonight, which matches the National Weather Service. The commute tonight could be messy. I think I will blog about the different winter weather notices the NWS uses.

The National Weather Service has issued a Winter Weather Advisory for the Flagstaff area.

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
323 AM MST THU DEC 13 2012

AZZ015-131830-
/O.CON.KFGZ.WW.Y.0009.121214T0400Z-121214T1900Z/
WESTERN MOGOLLON RIM-
INCLUDING THE CITY OF...FLAGSTAFF
323 AM MST THU DEC 13 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO NOON MST FRIDAY...

* TIMING...SNOW WILL BEGIN AFTER SUNSET THURSDAY EVENING AND
  WILL BECOME STEADY BY LATE EVENING. SNOW MAY BECOME HEAVY AT
  TIMES AFTER MIDNIGHT MST...THROUGH EARLY FRIDAY MORNING.
  PERIODS OF SNOW WILL BECOME SHOWERY AND INTERMITTENT BY FRIDAY
  AFTERNOON.

* TOTAL ACCUMULATIONS...4 TO 8 INCHES ABOVE 6500 FEET... WITH 6 TO
  10 INCHES ABOVE 7000 FEET. THE LOWEST AMOUNTS WILL BE NORTHEAST
  OF FLAGSTAFF. LOCALLY HIGHER AMOUNTS OF 12 TO 16 INCHES WILL BE
  POSSIBLE SOUTH OF FLAGSTAFF AND 16 TO 24 INCHES OVER THE SAN
  FRANCISCO PEAKS.

* OTHER IMPACTS...GUSTY SOUTHWEST WINDS OF 15 TO 25 MPH WILL
  CAUSE AREAS OF BLOWING AND DRIFTING SNOW...AND REDUCED
  VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF FALLING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES.

PLAN EXTRA TIME FOR TRAVEL...AND USE CAUTION WHILE DRIVING. TAKE
EMERGENCY TRAVEL SUPPLIES INCLUDING WINTER CLOTHING...FOOD...
WATER AND A FLASHLIGHT.

FOR THE LATEST ROAD CONDITIONS AND CLOSURES...CALL THE ADOT
FREEWAY MANAGEMENT SYSTEM AT 1 888 411 7623 OR VISIT THEIR WEB
SITE AT WWW.AZ511.COM.

ADDITIONAL WEATHER INFORMATION IS ON THE WEB AT
WWW.WEATHER.GOV/FLAGSTAFF.