snow. The PoP
threshold is still
25%.
28
24 Jan
No significant weather
Bill Myers
Brent Shaw
29
25 Jan
Weather event approaching
from southwest and west.
Snowfall of 1-3 inches
predicted across routes.
Snow start time
approximately 01:00 on
26th.
30
26 Jan
Snow event. Snow (4-5
Chemical treatments and
Brent Shaw
inches) falling over routes
plowing recommended.
for long period (~12 hrs).
Some actual treatments
Road temperatures cold and
were entered.
treatments were
recommended.
Brent Shaw
31
27 Jan
Clear and cold
Insolation field
(short wave) from
WRF seems to be
underestimating
insolation on clear
days. Changed
weight blend to be
75% MM5 and
25% WRF.
Lost FSL model data after
Brent Shaw
32
28 Jan
Cloudy with light snow
05Z due to H/W problem
north and east of Ames
routes, but not over the
Ames routes
33
29 Jan
Light snow early in the
FSL model data
Display (version
Brent Shaw
morning. Not picked up by
unavailable
3.03): Weather
MDSS (sans FSL models).
alert criteria were
Treatments required around
MDSS Missed Event
modified to remove
morning rush hour. Some
the original simple
sand/salt mix used.
blowing snow
alerts. Blowing
snow alerts are still
being provided by
the new, more
sophisticated
algorithm.
34
30 Jan
Light snow event of ~3
FSL model data
Brent Shaw
inches. Temperatures near
unavailable
Paul Pisano
zero.
MDSS Missed Event
FSL model data
Brent Shaw
35
31 Jan
Light snow in morning.
unavailable
Temperature -2F. Not clear
if treatments needed.
36
1 Feb
Snow event. Temps in 20s.
FSL model data
Darin
MDSS predicted 4-6 for
unavailable
Meyers
Ames and 3-4 for DSM.
Long event with light rates.
Iowa DOT input several
`actual' treatments. Good
173
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