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Daily Precipitation Report  
Station Number: CO-BO-435 Station Name: Longmont 3.0 SW
Data Explorer
Observation Date 12/18/2025 7:00 AM
Submitted 12/18/2025 7:08 AM
Gauge Catch
0.00 in.
Notes
 Though high wind alert predicted around 11 am, winds did not begin until midafternoon. Sunny, pleasant morning, high mid 60s. Dark heavy shelf clouds formed around 2 pm and high winds began about 345 pm Winds were unbelievably fierce til about 330 am. Sounded like freight trains. Unsure of wind speed or gusts in Longmont but similar to experience in Japan where wind speed reached 70 mph. Just read wind speeds reached 109 at NCAR in Boulder just a few miles from here. Cooler today- 49 but warmer temps ahead and another high wind alert for Friday. Though EXCEL Energy planned to shut down power for many counties along the Front Range, here in Longmont we have buried lines - what a gift. At least 200,000 people lost power from the winds and unsure how many EXCEL energy shut down power in advance of the storm.
Snow Information
24-hr Snowfall 0.0 in.
24-hr Snowfall SWE
(Snow Water Equivalent) 		0.00 in.
24-hr Snowfall SLR
(Snow to Liquid Ratio)		 NA
Snowpack Depth 0.0 in.
Snowpack SWE
(Snow Water Equivalent) 		0.00 in.
Snowpack Density NA
Duration Information
Precipitation Began --
Precipitation Ended --
Heavy Precip Began --
Heavy Precip Lasted --
Duration Time Accuracy --
Additional Information
Flooding --
Additional Data Recorded No