Alert archive / Colorado / Freeze Warnings in 2022
Freeze Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this freeze warning at Oct 17, 2022, 2:05 PM MDT for 6 counties in Colorado. It took effect at Oct 18, 2022, 12:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 17, 2022, 2:05 PM MDT (20:05 UTC)
- In effect from
- Oct 18, 2022, 12:00 AM MDT
- Expired
- Oct 18, 2022, 9:00 AM MDT
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Larimer County, CO, Weld County, CO
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 8.1 hours before the alert went out and 345 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2335 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this freeze warning went out at Oct 17, 9:21 AM MDT, 4 hours 44 minutes earlier.
Area forecast discussion, Oct 17, 9:21 AM MDT, 4 hours 44 minutes before
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</html>Hazardous weather outlook, Oct 17, 9:38 AM MDT, 4 hours 27 minutes before
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Freeze Warnings in Colorado, 2022Every freeze warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.