Alert archive / Missouri / Special Weather Statements in 2019

Special Weather Statement, NWS Kansas City, MO

September 21, 2019Atchison County, Missouri

NWS Kansas City, MO issued this special weather statement at Sep 21, 2019, 10:31 PM CDT for Atchison County, Missouri. It was in force for 29 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: Sep 21, 2019, 10:31 PM CDT (03:31 UTC)
Expired: Sep 21, 2019, 11:00 PM CDT
In force: 29 min
Issued by: NWS Kansas City, MO

County Atchison County, MO

The radar

The Omaha radar (KOAX), 113 km from the middle of the area, began a volume at 03:34 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

Omaha, NE (KOAX), launched 00:00Z, 3.5 hours before the alert went out and 114 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: 1572 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1199 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.0

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 Kansas City, MO wrote its last area forecast discussion before this special weather statement went out at Sep 21, 6:09 PM CDT, 4 hours 22 minutes earlier.

Area forecast discussion, Sep 21, 6:09 PM CDT, 4 hours 22 minutes before

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Hazardous weather outlook, Sep 21, 5:00 AM CDT, 17 hours 31 minutes before

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In the hours before

Special weather statement, Sep 21, 10:31 PM CDT, 0 minutes before

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The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 21, 8:37 PM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	4 days
Sep 21, 8:37 PM CDT	River Flood Warning	EAX	Carroll, Chariton	3 days
Sep 21, 8:37 PM CDT	River Flood Warning	EAX	Buchanan	4 days
Sep 21, 8:37 PM CDT	River Flood Warning	EAX	Carroll	3 days
Sep 21, 9:01 PM CDT	River Flood Warning	EAX	Platte	5 days
Sep 21, 11:10 PM CDT	Special Weather Statement	EAX	Atchison	50 min
Sep 22, 12:00 AM CDT	Special Weather Statement	EAX	Nodaway	45 min
Sep 22, 12:26 AM CDT	Areal Flood Advisory	EAX	Atchison, Holt, Nodaway	6 hr
Sep 22, 10:51 AM CDT	River Flood Warning	EAX	Jackson	29 hr
Sep 22, 11:59 AM CDT	River Flood Warning	EAX	Jackson	34 hr
Sep 22, 11:59 AM CDT	River Flood Warning	EAX	Atchison, Holt	40 hr
Sep 22, 12:32 PM CDT	River Flood Warning	EAX	Carroll	59 hr
Sep 22, 1:27 PM CDT	River Flood Warning	EAX	Ray	42 hr
Sep 22, 3:42 PM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	39 hr
Sep 22, 9:52 AM CDT	River Flood Warning	EAX	Johnson	2 hr

Nearby

Special Weather Statements in Missouri, 2019 Every special weather statement in 2019

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.