Alert archive / Colorado / Winter Storm Warnings in 2022

Winter Storm Warning 5, NWS Denver/Boulder, CO

March 16, 202211 counties in Colorado

NWS Denver/Boulder, CO issued this winter storm warning at Mar 16, 2022, 4:46 AM MDT for 11 counties in Colorado. It took effect at Mar 16, 2022, 6:00 PM MDT. It was in force for 18 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 16, 2022, 4:46 AM MDT (10:46 UTC)
In effect from
Mar 16, 2022, 6:00 PM MDT
Expired
Mar 17, 2022, 12:00 PM MDT
In force
18 hr
Issued by
NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Park County, CO

The radar

The Denver radar (KFTG), 43 km from the middle of the area, began a volume at 10:49 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.

What was reported inside it

TimeReportWhereRemark
Mar 16, 9:35 PM MDTSNOW 21 Nw Genesee, CO
Mar 16, 9:57 PM MDTSNOW 4.54 Ne Nederland, CO
Mar 17, 12:00 AM MDTSNOW 0.23 Ssw Boulder, CONATIONAL WEATHER SERVICE IN BOULDER.
Mar 17, 12:00 AM MDTSNOW 21 S Denver Intl Airport, COOFFICIAL SNOWFALL MEASUREMENT AT D.I.A.
Mar 17, 12:00 AM MDTSNOW 3.31 S Denver Intl Airport, COCORRECTED REPORT 1.8 AT MIDNIGHT, AN ADDITIONAL 1.5 AT 0100 OBSERVATION OFFICIAL SNOWFALL MEASUREMENT AT D.I.A.
Mar 17, 3:40 AM MDTSNOW 5.9Castle Rock, CO
Mar 17, 3:59 AM MDTSNOW 1.92 Ne Arvada, CO
Mar 17, 5:00 AM MDTSNOW 5.82 Wsw The Pinery, COCOCORAHS STATION CO-DG-327 THE PINERY 1.6 WSW.
Mar 17, 5:00 AM MDTSNOW 94 N Floyd Hill, COCOCORAHS STATION CO-GL-34 FLOYD HILL 3.7 N.
Mar 17, 5:44 AM MDTSNOW 4.63 Ssw Castle Pines, CO
Mar 17, 5:45 AM MDTSNOW 7.14 Ne The Pinery, CO
Mar 17, 5:56 AM MDTSNOW 91 Ssw Crescent Village, CO
Mar 17, 6:00 AM MDTSNOW 1.23 Ssw Boulder, COSTORM TOTAL SNOWFALL. 1 INCH IN THE PAST 6 HOURS.
Mar 17, 6:00 AM MDTSNOW 24 Wsw Arvada, COCOCORAHS STATION CO-JF-504 ARVADA 3.6 WSW.
Mar 17, 6:00 AM MDTSNOW 2.74 Nne Ken Caryl, COCOCORAHS STATION CO-JF-518 KEN CARYL 3.5 N.
Mar 17, 6:00 AM MDTSNOW 3.1Littleton, COCOCORAHS STATION CO-AR-386 LITTLETON 0.1 ESE.
Mar 17, 6:00 AM MDTSNOW 3.41 Wsw Aurora, COCOCORAHS STATION CO-AR-270 AURORA 0.7 WSW.
Mar 17, 6:00 AM MDTSNOW 43 Wsw Roxborough Park, COCO-OP OBSERVER STATION SSDC2 2.6 W ROXBOROUGH PARK.
Mar 17, 6:00 AM MDTSNOW 4.53 E Guffey, COCOCORAHS STATION CO-PK-113 2 E GUFFEY.
Mar 17, 6:00 AM MDTSNOW 4.62 Se Denver Intl Airpor, COSTORM TOTAL SNOWFALL THROUGH 6AM.
Mar 17, 6:00 AM MDTSNOW 11.7Rollinsville, COCOCORAHS STATION CO-GL-23 ROLLINSVILLE 0.1 WNW.
Mar 17, 6:00 AM MDTSNOW 12.94 Ene Nederland, COCOCORAHS STATION CO-BO-296 NEDERLAND 3.7 ENE.
Mar 17, 6:15 AM MDTSNOW 2.52 Nne Lakewood, CO
Mar 17, 6:15 AM MDTSNOW 3.71 Ese Ken Caryl, COCOCORAHS STATION CO-JF-338 KEN CARYL 0.6 WSW.
Mar 17, 6:20 AM MDTSNOW 6Pine Junction, COREPORT VIA TWITTER.
Mar 17, 6:21 AM MDTSNOW 4.53 Wsw Aurora, COCOCORAHS STATION CO-AR-308 AURORA 2.7 WSW.
Mar 17, 6:30 AM MDTSNOW 0.72 W Boulder, COCOCORAHS STATION CO-BO-437 BOULDER 2.1 W.
Mar 17, 6:30 AM MDTSNOW 10.52 Sw Golden, COCOCORAHS STATION CO-JF-497 GOLDEN 1.6 SW.
Mar 17, 6:30 AM MDTSNOW 112 Sse Harris Park, CODELAYED REPORT. RELAYED BY BROADCAST MEDIA.
Mar 17, 6:30 AM MDTSNOW 11.31 Nnw Genesee, CO1.3 INCHES IN THE PAST HOUR.
Mar 17, 6:35 AM MDTSNOW 10.94 Sse Pinecliffe, COCOCORAHS STATION CO-JF-331 GOLDEN 12.5 NW.
Mar 17, 6:50 AM MDTSNOW 4.33 N Cherry Creek Reserv, COCOCORAHS STATION CO-AR-105 DENVER 6.3 SSE.
Mar 17, 6:54 AM MDTSNOW 3.23 Wnw Arvada, CO0.73 INCHES OF LIQUID EQUIVALENT.
Mar 17, 7:00 AM MDTSNOW 0.51 Se Boulder, COCOCORAHS STATION CO-BO-409 BOULDER 1.4 SE.
Mar 17, 7:00 AM MDTSNOW 0.5Lyons, COCOCORAHS STATION CO-BO-146 LYONS 0.3 NNE.
Mar 17, 7:00 AM MDTSNOW 0.62 N Louisville, COCOCORAHS STATION CO-BO-468 LOUISVILLE 1.6 NNE.
Mar 17, 7:00 AM MDTSNOW 0.81 Ene Boulder, COCOCORAHS STATION CO-BO-457 BOULDER 0.7 ENE.
Mar 17, 7:00 AM MDTSNOW 11 Nnw Boulder, COCOCORAHS STATION CO-BO-496 BOULDER 1.5 NNW.
Mar 17, 7:00 AM MDTSNOW 11 W Boulder, COCOCORAHS STATION CO-BO-521 BOULDER 1.4 W.
Mar 17, 7:00 AM MDTSNOW 11 Wnw Boulder, COCOCORAHS STATION CO-BO-490 BOULDER 1.5 WNW.
Mar 17, 7:00 AM MDTSNOW 12 N Boulder, COCOCORAHS STATION CO-BO-477 BOULDER 2.3 N.
Mar 17, 7:00 AM MDTSNOW 12 Nw Longmont, COCOCORAHS STATION CO-BO-84 LONGMONT 2.6 NW.
Mar 17, 7:00 AM MDTSNOW 13 S Erie, COCOCORAHS STATION CO-BR-32 BROOMFIELD 3.2 NNE.
Mar 17, 7:00 AM MDTSNOW 13 Ssw Niwot, COCOCORAHS STATION CO-BO-552 BOULDER 4.8 ENE.
Mar 17, 7:00 AM MDTSNOW 1.23 Nw Louisville, COCOCORAHS STATION CO-BO-67 BOULDER 4.7 E.
Mar 17, 7:00 AM MDTSNOW 1.32 Nw Boulder, COCOCORAHS STATION CO-BO-465 BOULDER 1.8 NW.
Mar 17, 7:00 AM MDTSNOW 1.32 Wnw Erie, COCOCORAHS STATION CO-BO-285 ERIE 1.7 WNW.
Mar 17, 7:00 AM MDTSNOW 1.42 Ne Henderson, COCO-OP OBSERVER STATION BRIC2 2.4 NE HENDERSON.
Mar 17, 7:00 AM MDTSNOW 1.51 Se Todd Creek, COCOCORAHS STATION CO-AD-123 BRIGHTON 4.0 WNW.
Mar 17, 7:00 AM MDTSNOW 1.52 S Boulder, COCOCORAHS STATION CO-BO-4 BOULDER 2.9 S.
Mar 17, 7:00 AM MDTSNOW 1.72 E Broomfield, COCOCORAHS STATION CO-BR-54 BROOMFIELD 2.4 ESE.
Mar 17, 7:00 AM MDTSNOW 1.91 Nw Broomfield, COCOCORAHS STATION CO-BO-2 BROOMFIELD 1.2 NE.
Mar 17, 7:00 AM MDTSNOW 21 Ne Wheat Ridge, COCOCORAHS STATION CO-JF-499 WHEAT RIDGE 1.2 ENE.
Mar 17, 7:00 AM MDTSNOW 23 Sw Federal Heights, COCOCORAHS STATION CO-AD-250 WESTMINSTER 3.6 SW.
Mar 17, 7:00 AM MDTSNOW 2.12 Nw Marshall, COCOCORAHS STATION CO-BO-286 BOULDER 3.5 S.
Mar 17, 7:00 AM MDTSNOW 2.12 Se Commerce City, COCOCORAHS STATION CO-DN-304 DENVER 6.0 NE.
Mar 17, 7:00 AM MDTSNOW 2.12 Ssw Boulder, COCOCORAHS STATION CO-BO-485 BOULDER 2.3 SSW.
Mar 17, 7:00 AM MDTSNOW 2.14 W Arvada, COCOCORAHS STATION CO-JF-240 ARVADA 3.8 W.
Mar 17, 7:00 AM MDTSNOW 2.32 Ne Northglenn, COCOCORAHS STATION CO-AD-100 THORNTON 2.1 N.
Mar 17, 7:00 AM MDTSNOW 2.32 Se Mountain View, COCOCORAHS STATION CO-DN-259 DENVER 4.3 WNW.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 10.8 hours before the alert went out and 154 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2022-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2022-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
4469 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
202 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 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 winter storm warning went out at Mar 16, 4:23 AM MDT, 23 minutes earlier.

Area forecast discussion, Mar 16, 4:23 AM MDT, 23 minutes before
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Hazardous weather outlook, Mar 15, 10:38 AM MDT, 18 hours 8 minutes before
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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 4:46 AM MDTWinter Weather AdvisoryBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more31 hr

Nearby

Winter Storm Warnings in Colorado, 2022Every winter storm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.