Alert archive / Colorado / High Wind Watches in 2014

High Wind Watch 11, NWS Denver/Boulder, CO

April 27, 20146 counties in Colorado

NWS Denver/Boulder, CO issued this high wind watch at Apr 27, 2014, 1:58 PM MDT for 6 counties in Colorado. It took effect at Apr 28, 2014, 9:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: Apr 27, 2014, 1:58 PM MDT (19:58 UTC)
In effect from: Apr 28, 2014, 9:00 AM MDT
Expired: Apr 28, 2014, 3:46 AM MDT
In force
Issued by: NWS Denver/Boulder, CO

Counties Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 139 km from the middle of the area, began a volume at 20:01 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

Denver, CO (KDEN), launched 12:00Z, 8.0 hours before the alert went out and 70 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: 1820 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -107 m²/s²
0-3 km storm-relative helicity: 57 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 high wind watch 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 high wind watch went out at Apr 27, 9:12 AM MDT, 4 hours 46 minutes earlier.

Area forecast discussion, Apr 27, 9:12 AM MDT, 4 hours 46 minutes before

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Hazardous weather outlook, Apr 27, 11:28 AM MDT, 2 hours 30 minutes before

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In the hours before

Local storm report, Apr 27, 11:05 AM MDT, 2 hours 53 minutes before

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Local storm report, Apr 27, 12:09 PM MDT, 1 hour 49 minutes before

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Local storm report, Apr 27, 1:45 PM MDT, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:30 PM MDT	High Wind Watch	BOU	Phillips, Sedgwick	7 hr
Apr 26, 9:30 PM MDT	High Wind Warning	BOU	Adams, Arapahoe, Elbert, Larimer, Lincoln, Logan and 5 more	24 hr
Apr 27, 4:42 AM MDT	Winter Weather Advisory	BOU	Grand, Jackson	8 hr
Apr 27, 12:34 PM MDT	Winter Weather Advisory	BOU	Boulder, Clear Creek, Gilpin, Grand, Jefferson, Park and 1 more	8 hr

Nearby

High Wind Watches in Colorado, 2014 Every high wind watch in 2014

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.