Alert archive / Kansas / Special Weather Statements in 2017

Special Weather Statement, NWS Wichita, KS

April 20, 2017Woodson County, Kansas

NWS Wichita, KS issued this special weather statement at Apr 20, 2017, 1:35 AM CDT for Woodson County, Kansas. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 20, 2017, 1:35 AM CDT (06:35 UTC)
Expired: Apr 20, 2017, 2:15 AM CDT
In force: 40 min
Issued by: NWS Wichita, KS

County Woodson County, KS

The radar

The Wichita radar (KICT), 133 km from the middle of the area, began a volume at 06:37 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 (KFOE), launched 00:00Z, 6.6 hours before the alert went out and 137 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: 590 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1327 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 19, 11:41 PM CDT, 1 hour 54 minutes earlier.

Area forecast discussion, Apr 19, 11:41 PM CDT, 1 hour 54 minutes before

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Hazardous weather outlook, Apr 19, 10:59 PM CDT, 2 hours 36 minutes before

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In the hours before

Special weather statement, Apr 19, 10:24 PM CDT, 3 hours 11 minutes before

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Special weather statement, Apr 19, 10:59 PM CDT, 2 hours 36 minutes before

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Special weather statement, Apr 19, 11:43 PM CDT, 1 hour 52 minutes before

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Special weather statement, Apr 20, 12:04 AM CDT, 1 hour 31 minutes before

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Local storm report, Apr 20, 12:39 AM CDT, 56 minutes before

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Special weather statement, Apr 20, 1:35 AM CDT, 0 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
Apr 19, 7:06 PM CDT	Severe Thunderstorm Warning	ICT	Barton, Ellsworth, Rice	54 min
Apr 19, 7:35 PM CDT	Severe Thunderstorm Warning	ICT	Ellsworth, McPherson, Saline	55 min
Apr 19, 7:45 PM CDT	Severe Thunderstorm Warning	ICT	Saline	36 min
Apr 19, 7:48 PM CDT	Severe Thunderstorm Warning	ICT	Barton, Ellsworth, Rice	57 min
Apr 19, 8:26 PM CDT	Severe Thunderstorm Warning	ICT	McPherson	21 min
Apr 19, 8:41 PM CDT	Special Weather Statement	ICT	Rice	34 min
Apr 19, 8:48 PM CDT	Special Weather Statement	ICT	McPherson	27 min
Apr 19, 9:00 PM CDT	Severe Thunderstorm Warning	ICT	McPherson, Reno, Rice	45 min
Apr 19, 9:23 PM CDT	Special Weather Statement	ICT	Marion	37 min
Apr 19, 9:39 PM CDT	Special Weather Statement	ICT	Harvey	36 min
Apr 19, 9:43 PM CDT	Special Weather Statement	ICT	Reno	32 min
Apr 19, 10:24 PM CDT	Special Weather Statement	ICT	Kingman, Reno	51 min
Apr 19, 10:59 PM CDT	Special Weather Statement	ICT	Kingman, Reno	46 min
Apr 19, 11:43 PM CDT	Special Weather Statement	ICT	Harvey, Kingman, Sedgwick	47 min
Apr 20, 12:04 AM CDT	Special Weather Statement	ICT	Butler	26 min

Nearby

Special Weather Statements in Kansas, 2017 Every special weather statement in 2017

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.