Other Public Products
Issued by NWS
Issued by NWS
935
NZUS99 KBOU 171449
OPUAPA
Developmental Probabilistic Snow Accumulation Forecast (APA)
National Weather Service Denver/Boulder, Colorado
0849 MDT Thursday, April 17, 2025
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This developmental product contains the probabilities (%) that the given snow
amounts (inches) will occur at Centennial Airport during the respective
3 hour or 12 hour periods. The probabilities indicate the amount of snow that
is expected to accumulate on runways and other concrete surfaces at APA.
[T (trace) means more than zero.]
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Discussion (17/09-18/12 MDT): Rain showers will develop Thursday evening after
9pm following a cold front, with a rain/snow mix or even brief freezing rain
possible between 10pm and 1am tonight. Past midnight, precipitation should
transition to snow, with generally light to moderate intensity and snowfall
rates 0.5"/hr or less. Fairly steady snow will continue through the day Friday,
and taper off by Saturday morning. Air and pavement temperatures are likely to
be marginal for most of the day Friday, with any accumulations being primarily
confined to grassy and colder surfaces. Snow accumulation on runways and
taxiways will become more likely after 6pm Friday as temperatures drop to or
below freezing. Total accumulations on runways/taxiways of 1 to 4" expected
through Saturday, occurring mainly Friday evening and night. Total accumulations
on colder surfaces may be closer to 2 to 6" through Saturday.Rain showers will
develop Thursday evening following a cold front, with a rain to snow transition
expected to occur near midnight Thursday night. Steady light to moderate
snowfall will continue through most of the day Friday. Temperatures by early
Friday morning should support some snow accumulation on all surfaces, but
daytime temperatures on Friday may climb into the mid 30`s, with potential for
limited accumulation on runways and taxiways. Snowfall rates are expected to
generally remain at or below 0.5"/hr, with total snow accumulations through
Friday evening of 2 to 5 inches anticipated.Rain showers will develop Thursday
eveningfollowing a cold front, with a rain to snow transition expected to occur
nearmidnight Thursday night. Steady light to moderate snowfall will continue
throughmost of the day Friday. Temperatures by early Friday morning should
support somesnow accumulation on all surfaces, but daytime temperatures on
Friday may climbinto the mid 30`s, with potential for limited accumulation on
runways andtaxiways. Snowfall rates are expected to generally remain at or below
0.5"/hr,with total snow accumulations through Friday evening of 2 to 5
inchesanticipated.
0" T or 1" or 3" or 10" or
Day/Hour MDT more more more more
--------------------------------------------------
17/09-17/12 | 100 0 0 0
17/12-17/15 | 100 0 0 0
17/15-17/18 | 100 0 0 0
17/18-17/21 | 100 0 0 0
17/21-18/00 | 80 20 0 0
17/12-18/00 | 0
18/00-18/03 | 20 80 25 0
18/03-18/06 | 20 80 25 0
18/06-18/09 | 20 80 15 0
18/09-18/12 | 20 80 20 0
18/00-18/12 | 0
0" T or 1" or 3" or 10" or
Day/Hour MDT more more more more
--------------------------------------------------
18/12-18/15 | 20 80 25 0
18/15-18/18 | 20 80 30 0
18/18-18/21 | 20 80 50 0
18/21-19/00 | 10 90 60 0
18/12-19/00 | 0
19/00-19/03 | 50 50 0 0
19/03-19/06 | 70 30 0 0
19/06-19/09 | 85 15 0 0
19/09-19/12 | 100 0 0 0
19/00-19/12 | 0