Tornado Alley (PROG)

[F6]

for the record -- latest Boston-area blizzard warning -- the one obvious change from the earlier Boston-area blizzard warning is upping the expected accumulations from "18 to 24 inches" to "more than 2 feet" (which I've bolded below) -- they are now pretty much calling for the number one all-time storm (heard late last evening [but have not verified] that that one of the models, the NAM, was calling for 40 to 60 inches of snow in some locations; two of the Weather Channel meteorologists in Boston to report the storm just set their over/under for total snowfall in Boston at 30 inches, which would be the all-time single-storm record, and mentioned a model run showing 40 inches of snow in/near Boston):

 URGENT - WINTER WEATHER MESSAGE 
 NATIONAL WEATHER SERVICE TAUNTON MA 
 439 AM EST FRI FEB 8 2013 
  
 ...A POTENTIAL HISTORIC WINTER STORM AND BLIZZARD IS EXPECTED TO 
 DROP UP TO 3 FEET OF SNOW THROUGH SATURDAY... 
  
 MAZ005>007-012>023-NHZ012-RIZ001>008-081745- 
 /O.CON.KBOX.BZ.W.0001.130208T1100Z-130209T1800Z/ 
 CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA- 
 SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA- 
 SUFFOLK MA-EASTERN NORFOLK MA-NORTHERN BRISTOL MA- 
 WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA- 
 SOUTHERN PLYMOUTH MA-BARNSTABLE MA-DUKES MA- 
 EASTERN HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI- 
 SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- 
 BRISTOL RI-WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI- 
 INCLUDING THE CITIES OF...FRAMINGHAM...LOWELL...LAWRENCE... 
 GLOUCESTER...MILFORD...WORCESTER...FOXBORO...NORWOOD... 
 CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... 
 FALL RIVER...NEW BEDFORD...MATTAPOISETT...CHATHAM...FALMOUTH... 
 PROVINCETOWN...VINEYARD HAVEN...MANCHESTER...NASHUA...FOSTER... 
 SMITHFIELD...PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL... 
 NARRAGANSETT...WESTERLY...NEWPORT...BLOCK ISLAND 
 439 AM EST FRI FEB 8 2013 
  
 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 1 PM EST SATURDAY... 
  
 * LOCATIONS...EASTERN AND SOUTHEASTERN MASSACHUSETTS...INCLUDING 
   BOSTON AND THE BOSTON METRO AREA...ALL OF RHODE ISLAND INCLUDING 
   BLOCK ISLAND...AND SOUTHEASTERN NEW HAMPSHIRE. 
  
 * HAZARD TYPES...HEAVY SNOW...BLOWING AND DRIFTING AT TIMES... 
   QUARTER MILE VISIBILITIES...AND WINDS GUSTING NEAR 60 MPH. 
  
 * ACCUMULATIONS...SNOW ACCUMULATION OF MORE THAN 2 FEET. 
  
 * TIMING...LIGHT SNOW WILL DEVELOP BY THIS MORNING...BECOMING 
   HEAVY LATE IN THE DAY INTO THE EVENING COMMUTE. THE HEAVIEST 
   SNOW...ESPECIALLY FOCUSED ALONG THE I-95 CORRIDOR... WILL FALL 
   TONIGHT INTO SATURDAY. 
  
 * IMPACTS...BLIZZARD CONDITIONS AND DANGEROUS TRAVEL. WHITEOUT 
   CONDITIONS ARE ANTICIPATED AS ROADS BECOME SNOW COVERED BY THIS 
   EVENINGS COMMUTE. STRONG NORTH-NORTHEAST WINDS ARE ANTICIPATED 
   WITH GUSTS UP TO AROUND 60 MPH...RESULTING IN BLOWING AND 
   DRIFTING OF SNOW. DAMAGE TO TREES AND STRUCTURES ALONG WITH 
   SCATTERED POWER OUTAGES ARE ANTICIPATED. 
  
 * WINDS...NORTHEAST 30 TO 40 MPH WITH GUSTS UP TO 70 MPH. 
  
 * VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES. 
  
 * TEMPERATURES...IN THE UPPER 20S. 
  
 PRECAUTIONARY/PREPAREDNESS ACTIONS... 
  
 A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WINDS OR FREQUENT 
 GUSTS OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE FALLING AND/OR 
 BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL BECOME POOR WITH 
 WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING OUTDOORS MAY 
 BECOME LOST OR DISORIENTED...SO PERSONS IN THE WARNING AREA ARE 
 ADVISED TO STAY INDOORS. 
  
 && 
  
 $$

http://forecast.weather.gov/showsigwx.php?warnzone=MAZ014&warncounty=MAC017&firewxzone=MAZ014&local_place1=&product1=Blizzard+Warning