Alert archive / Colorado / Winter Storm Watches in 2023

Winter Storm Watch 4, NWS Pueblo, CO

February 20, 20236 counties in Colorado

NWS Pueblo, CO issued this winter storm watch at Feb 20, 2023, 4:14 AM MST for 6 counties in Colorado. It took effect at Feb 21, 2023, 5:00 PM MST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 20, 2023, 4:14 AM MST (11:14 UTC)
In effect from: Feb 21, 2023, 5:00 PM MST
Expired: Feb 20, 2023, 3:09 PM MST
In force
Issued by: NWS Pueblo, CO

Counties Chaffee County, CO, Conejos County, CO, Lake County, CO, Mineral County, CO, Rio Grande County, CO, Saguache County, CO

The radar

The Grand Junction radar (KGJX), 193 km from the middle of the area, began a volume at 11:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 00:00Z, 11.2 hours before the alert went out and 218 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2134 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this winter storm watch went out at Feb 19, 10:34 PM MST, 5 hours 40 minutes earlier.

Area forecast discussion, Feb 19, 10:34 PM MST, 5 hours 40 minutes before

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Hazardous weather outlook, Feb 19, 5:08 AM MST, 23 hours 6 minutes before

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In the hours before

Local storm report, Feb 19, 10:39 PM MST, 5 hours 35 minutes before

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Local storm report, Feb 20, 12:19 AM MST, 3 hours 55 minutes before

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Local storm report, Feb 20, 2:10 AM MST, 2 hours 4 minutes before

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The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 20, 3:00 PM MST	High Wind Watch	PUB	Alamosa, Baca, Conejos, Costilla, Las Animas, Rio Grande	14 hr
Feb 20, 3:06 PM MST	Red Flag Warning	PUB	Baca, Huerfano, Las Animas, Otero	27 hr
Feb 20, 3:09 PM MST	Blizzard Warning	PUB	Conejos, Mineral, Rio Grande	62 hr
Feb 20, 3:09 PM MST	Winter Storm Warning	PUB	Chaffee, Lake, Mineral, Rio Grande, Saguache	62 hr
Feb 20, 3:09 PM MST	Winter Weather Advisory	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 6 more	62 hr

Nearby

Winter Storm Watches in Colorado, 2023 Every winter storm watch in 2023

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; radar from the NEXRAD Level II archive.