Field activities began at approximately 1930 UTC. A weather balloon was prepared for a 21 UTC launch. This launch occurred just prior to the onset of light rain. Following the launch, Kestrel data were collected at Fortress Mountain and rain-snow transition areas were observed. Bighorn Sheep were seen, and an Audi commercial was being filmed at Fortress.
The team forecast the event very well. Between 2120 UTC and 2240 UTC, mixed precipitation was observed, heavy at times, with some large snowflakes and visibilities < 3 km for > 20 min.
The Micro Rain Radar collected some excellent data, with surface reflectivity values > 30 dBZ, downward particle velocities of 4-6 m/s at the surface with velocities of 1-2 m/s between 400 m and 600 m above the ground. The Parsivel sampled instances with snowflakes > 3 mm with downward velocities of approximately 2 m/s.
A second weather balloon was launched at 00 UTC, which found a temperature decrease of approximately 6°C at the 775 mb level compared to the 21 UTC launch.
All of the instruments were performing properly.
Emilie P., Paul, and Stephen performed field duties during this event.
-Stephen Berg
The team forecast the event very well. Between 2120 UTC and 2240 UTC, mixed precipitation was observed, heavy at times, with some large snowflakes and visibilities < 3 km for > 20 min.
The Micro Rain Radar collected some excellent data, with surface reflectivity values > 30 dBZ, downward particle velocities of 4-6 m/s at the surface with velocities of 1-2 m/s between 400 m and 600 m above the ground. The Parsivel sampled instances with snowflakes > 3 mm with downward velocities of approximately 2 m/s.
A second weather balloon was launched at 00 UTC, which found a temperature decrease of approximately 6°C at the 775 mb level compared to the 21 UTC launch.
All of the instruments were performing properly.
Emilie P., Paul, and Stephen performed field duties during this event.
-Stephen Berg
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