565
FPUS85 KBOU 070321
OPUBOU
Developmental Probabilistic Snow Accumulation Forecast
National Weather Service Denver/Boulder, Colorado
2021 MST Wednesday, November 06, 2024

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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 3- or 12-hour periods.  The probabilities indicate the amount of snow that
is expected to accumulate on runways and other concrete surfaces at DIA.
[T (trace) means more than zero.]
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Short Term (06/23-07/23 MST): Light snow showers are expected to shutoff for a
few hours overnight tonight. Any additional accumulations should be minimal,
with less than a trace possible before sunrise.  Snow returns to the area
Thursday morning, mainly south of the airport, but there is a chance it reaches
DIA.  Accumulations of up to 1 inch are possible between 12Z Thursday and 0Z
Friday.  The most likely timing of heaviest accumulations would likely be
between 15Z-20Z.

                   0"    T or   1" or   3" or   10" or
Day/Hour MST             more    more    more     more
            --------------------------------------------------
06/23-07/02 |      80      20       0       0
07/02-07/05 |      80      20       0       0
07/05-07/08 |      55      45      10       0
07/08-07/11 |      45      55      10       0
06/23-07/11 |                                        0
07/11-07/14 |      55      45       5       0
07/14-07/17 |      70      30       5       0
07/17-07/20 |      80      20       0       0
07/20-07/23 |      80      20       0       0
07/11-07/23 |                                        0

Long Term (07/23-08/23 MST): Models are coming into better agreement with this
prolonged winter storm system concerning snowfall at DIA.  Light snowfall will
begin on grassy surfaces Friday morning. Snow could accumulate along runways as
early as late Friday afternoon.  Snow expected accumulations between 2-4 inches
could occur through Friday night. The heaviest period of snowfall accumulation
could occur Friday midnight into Saturday morning;  early Saturday morning,
there is a 70 percent chance of an additional 1-2 inches  accumulating on
runways.  Snowfall should end by mid-day Saturday.

                   0"    T or   1" or   3" or   10" or
Day/Hour MST             more    more    more     more
            --------------------------------------------------
07/23-08/02 |      75      25       0       0
08/02-08/05 |      75      25       0       0
08/05-08/08 |      55      45       0       0
08/08-08/11 |      25      75       5       0
07/23-08/11 |                                        0
08/11-08/14 |      15      85      15       0
08/14-08/17 |      10      90      65       0
08/17-08/20 |      10      90      50       0
08/20-08/23 |      10      90      65       0
08/11-08/23 |                                        0