Alert archive / Kansas / Frost Advisories in 2009

Frost Advisory 4, NWS Wichita, KS

October 9, 20096 counties in Kansas

NWS Wichita, KS issued this frost advisory at Oct 9, 2009, 3:01 PM CDT for 6 counties in Kansas. It took effect at Oct 10, 2009, 4:00 AM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Oct 9, 2009, 3:01 PM CDT (20:01 UTC)
In effect from: Oct 10, 2009, 4:00 AM CDT
Expired: Oct 10, 2009, 9:08 AM CDT
In force: 5 hr
Issued by: NWS Wichita, KS

Counties Chase County, KS, Harvey County, KS, Marion County, KS, McPherson County, KS, Reno County, KS, Rice County, KS

The radar

The Wichita radar (KICT), 65 km from the middle of the area, began a volume at 20:05 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

Topeka, KS (KTOP), launched 12:00Z, 8.0 hours before the alert went out and 183 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: 494 m above ground
0-6 km bulk shear: 96 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 42 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 frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wichita, KS wrote its last area forecast discussion before this frost advisory went out at Oct 9, 12:37 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Oct 9, 12:37 PM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Oct 9, 12:51 PM CDT, 2 hours 10 minutes before

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In the hours before

Special weather statement, Oct 9, 9:44 AM CDT, 5 hours 17 minutes before

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The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 9, 7:57 AM CDT	Areal Flood Warning	ICT	Allen, Chautauqua, Elk, Greenwood, Labette, Montgomery and 3 more	7 hr
Oct 9, 1:56 PM CDT	River Flood Warning	ICT	Montgomery	13 hr
Oct 9, 3:01 PM CDT	Freeze Warning	ICT	Barton, Ellsworth, Lincoln, Russell, Saline	19 hr

Nearby

Frost Advisories in Kansas, 2009 Every frost advisory in 2009

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.