Alert archive / Iowa / Winter Storm Watches in 2006

Winter Storm Watch 2, NWS Des Moines, IA

March 15, 200613 counties in Iowa

NWS Des Moines, IA issued this winter storm watch at Mar 15, 2006, 4:20 AM CST for 13 counties in Iowa. It took effect at Mar 15, 2006, 6:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Mar 15, 2006, 4:20 AM CST (10:20 UTC)
In effect from: Mar 15, 2006, 6:00 PM CST
Expired: Mar 15, 2006, 3:37 PM CST
In force
Issued by: NWS Des Moines, IA

Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 140 km from the middle of the area, began a volume at 10:22 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

Minneapolis, MN (KMPX), launched 00:00Z, 10.3 hours before the alert went out and 207 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: 1252 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 109 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 Des Moines, IA wrote its last area forecast discussion before this winter storm watch went out at Mar 15, 3:36 AM CST, 44 minutes earlier.

Area forecast discussion, Mar 15, 3:36 AM CST, 44 minutes before

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Hazardous weather outlook, Mar 14, 5:17 PM CST, 11 hours 3 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 15, 3:37 PM CST	Winter Storm Warning	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 7 more	18 hr
Mar 15, 3:37 PM CST	Winter Weather Advisory	DMX	Grundy, Hamilton, Hardin, Pocahontas, Tama, Webster	19 hr

Nearby

Winter Storm Watches in Iowa, 2006 Every winter storm watch in 2006

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.