Alert archive / Colorado / Areal Flood Advisories in 2011

Areal Flood Advisory 49, NWS Pueblo, CO

August 28, 2011Chaffee County, Fremont County, Saguache County, Colorado

NWS Pueblo, CO issued this areal flood advisory at Aug 28, 2011, 3:18 PM MDT for Chaffee County, Fremont County, Saguache County, Colorado. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Aug 28, 2011, 3:18 PM MDT (21:18 UTC)
Expired: Aug 28, 2011, 5:22 PM MDT
In force: 2 hr
Issued by: NWS Pueblo, CO
Area: Storm-based polygon

Counties Chaffee County, CO, Fremont County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 156 km from the middle of the area, began a volume at 21:21 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 (KDNR), launched 12:00Z, 9.3 hours before the alert went out and 285 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: 2882 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 29 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 areal flood advisory 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 areal flood advisory went out at Aug 28, 2:57 PM MDT, 21 minutes earlier.

Area forecast discussion, Aug 28, 2:57 PM MDT, 21 minutes before

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Hazardous weather outlook, Aug 28, 11:32 AM MDT, 3 hours 46 minutes before

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In the hours before

Special weather statement, Aug 28, 2:22 PM MDT, 56 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
Aug 28, 4:57 PM MDT	Areal Flood Advisory	PUB	Costilla, Huerfano	116 min

Nearby

Areal Flood Advisories in Colorado, 2011 Every areal flood advisory in 2011

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.