Other Public Products


093 
NZUS99 KBOU 130935
OPUBOU
Developmental Probabilistic Snow Accumulation Forecast
National Weather Service Denver/Boulder, Colorado
0234 MST Wednesday, December 13, 2017
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This developmental product contains the probabilities (%) that the given snow
amounts (inches) will occur at Denver International Airport during the respec-
tive 6- or 12-hour periods.  The probabilities indicate the amount of snow that
will fall from the clouds.  They do not consider the amount of melting that may
or may not occur on various ground surfaces. [T (trace) means more than zero.]
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Short Term Discussion (13/12Z-14/12Z): A disturbance will bring light snow to
DIA later tonight.  Expect scattered snow showers to develop during the late
evening after 10 PM, and then a period of light snow from midnight through 5
AM.  Snowfall will be light with accumlations around one inch.  There is a low
probability of up to 2 inches with this system.  Temperatures will drop into
the upper 20s during the snowfall period with northeast winds of 7 to 15 mph.
                 0"   T or    1" or    3" or    6" or   10" or
Day/Hour GMT          more     more     more     more     more
            --------------------------------------------------
13/12-13/18 |  100       0        0        0
13/18-14/00 |  100       0        0        0
13/12-14/00 |                                       0        0
14/00-14/06 |   80      20        0        0
14/06-14/12 |   40      60       10        0
14/00-14/12 |                                       0        0
Long Term Discussion (14/12Z-15/12Z): Light snow will likely continue early
Thursday morning, tapering off by mid-morning.  Up to a quarter inch additional
accumulation may be possible in this time frame.  Isolated showers may continue
through the early afternoon hours, but most activity should be far east of the
airport with little to no accumulation.  Winds will be light out of the west in
the morning, then increase out of the north in the afternoon to 15 to 30 mph.
                 0"   T or    1" or    3" or    6" or   10" or
Day/Hour GMT          more     more     more     more     more
            --------------------------------------------------
14/12-14/18 |   70      30        0        0
14/18-15/00 |  100       0        0        0
14/12-15/00 |                                       0        0
15/00-15/06 |  100       0        0        0
15/06-15/12 |  100       0        0        0
15/00-15/12 |                                       0        0
Deterministic Forecast for Denver International Airport created at
1414 MST Tuesday, December 12, 2017
Valid at  Sky  PoP  CWR   T  Td  AT  RH   Wind(mph)    QPF  Snow  Tx RHn  Tn RHx
MM/DD:UT    %    %    %   F   F   F   %  Dir  Sp  Gs  inch  inch   F   %   F   %
================================================================================
12/13:00    0    0    0  53  16  53  23    S   6   7  ----  ----                
12/13:01    0    0    0  49  16  46  26  SSW   7   8    |     |                 
12/13:02    0    0    0  45  15  41  28   SW   8  13    |     |                 
12/13:03    0    0    0  42  15  37  32   SW  10  16  0.00   0.0                
12/13:04    0    0    0  40  15  34  35   SW  10  15    |     |                 
12/13:05    1    0    0  39  15  32  37   SW   9  15    |     |                 
12/13:06    1    0    0  37  14  31  39   SW   9  15  ----  ----                
12/13:07    2    0    0  36  13  29  39   SW   9  14    |     |                 
12/13:08    4    0    0  34  13  27  41   SW   9  13    |     |                 
12/13:09    4    0    0  34  13  26  42  SSW   9  15  0.00   0.0                
12/13:10    5    0    0  33  12  26  40  SSW   9  15    |     |                 
12/13:11    8    0    0  33  11  27  38    S   8  15    |     |                 
12/13:12    9    0    0  33  11  26  39  SSE   8  15  ----  ----                
12/13:13   19    0    0  32  10  26  40  SSE   7  12    |     |                 
12/13:14   37    0    0  32  10  26  39    S   6   8    |     |           32  43
12/13:15   46    0    0  33  12  28  41    S   6   8  0.00   0.0                
12/13:16   45    0    0  38  14  33  37   SE   6   9    |     |                 
12/13:17   42    0    0  44  14  40  29  ENE   6  14    |     |                 
12/13:18   40    0    0  50  14  47  23  ENE   7  16  ----  ----                
12/13:19   43    0    0  53  14  53  20   NE   8  16    |     |                 
12/13:20   50    0    0  55  14  55  20   NE   9  17    |     |                 
12/13:21   53    0    0  53  14  53  21   NE   9  17  0.00   0.0                
12/13:22   54    1    0  50  14  48  23   NE   9  16    |     |                 
12/13:23   57    3    1  46  15  42  28   NE   8  15    |     |   55  20        
12/14:00   71   25    6  43  15  39  31   NE   7   7  ----  ----                
12/14:01   75   25    6  40  16  35  37   NE   8   8    |     |                 
12/14:02   84   25    6  38  18  33  44   NE   8   8    |     |                 
12/14:03   88   25    6  37  19  31  50   NE   8   8  0.00   0.0                
12/14:04   88   25    6  35  20  29  55   NE   7   7    |     |                 
12/14:05   88   25    6  34  22  28  62   NE   7   7    |     |                 
12/14:06   88   31   10  33  23  28  67  NNE   6   6  ----  ----                
12/14:07   86   31   10  32  24  26  72  NNE   6   6    |     |                 
12/14:08   82   31   10  31  25  25  77  NNW   6   6    |     |                 
12/14:09   80   31   10  31  25  24  79   NW   6   6  0.03   0.5                
12/14:10   79   31   10  30  25  23  82   NW   6   6    |     |                 
12/14:11   78   31   10  29  24  23  82  WNW   6   6    |     |                 
12/14:12   77   21    4  28  24  22  85  WNW   6   6  ----  ----                
12/14:13   75   21    4  28  24  22  86  WNW   6   6    |     |                 
12/14:14   71   21    4  28  24  22  87    W   6   6    |     |           28  87
12/14:15   69   21    4  29  24  23  80    W   7   7  0.00   0.0                
12/14:16   64   21    4  32  23  25  68  WNW   9  13    |     |                 
12/14:17   53   21    4  37  22  28  55  NNW  14  21    |     |                 
12/14:18   47    6    1  41  21  32  45    N  17  26  ----  ----                
12/14:19   50    6    1  43  19  34  39    N  21  31    |     |                 
12/14:20   55    6    1  44  18  35  34    N  23  33    |     |                 
12/14:21   57    6    1  43  16  34  33    N  23  35  0.00   0.0                
12/14:22   52    6    1  42  16  32  35    N  21  31    |     |                 
12/14:23   40    6    1  39  16  29  39    N  17  26    |     |   44  33        
12/15:00   34    1    0  35  16  26  45    N  14  21  ----  ----                
________________________________________________________________________________
Sky= Amount of sky covered by opaque clouds (percent)
PoP= Probability of receiving .01 inch or more liquid (melted, if frozen) precip
CWR= Probability of receiving .10 inch or more liquid (melted, if frozen) precip
T  = Air temperature (degrees Fahrenheit)
Td = Dew point temperature (degrees Fahrenheit)
AT = Apparent temperature (wind chill or heat index; degrees Fahrenheit)
RH = Relative humidity (percent)
Dir= Compass direction from which the wind is blowing (e.g. NE= northeast)
Sp = Wind speed (miles per hour)
Gs = Wind gust speed (miles per hour)
QPF= Liquid precip amount (inches) expected thru the 6-hour period between ----
Snow= Snow amount (inches) expected during the 6-hour period between ---
Tx = Maximum temperature (F) during the period ending at the given hour
RHn= Minimum relative humidity (%) during the period ending at the given hour
Tn = Minimum temperature (F) during the period ending at the given hour
RHx= Maximum relative humidity (%) during the period ending at the given hour