Alert archive / Missouri / Special Weather Statements in 2018

Special Weather Statement, NWS Kansas City, MO

May 29, 2018Clay County, Missouri

NWS Kansas City, MO issued this special weather statement at May 29, 2018, 7:35 PM CDT for Clay County, Missouri. It was in force for 25 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: May 29, 2018, 7:35 PM CDT (00:35 UTC)
Expired: May 29, 2018, 8:00 PM CDT
In force: 25 min
Issued by: NWS Kansas City, MO

County Clay County, MO

The radar

The Pleasant Hill radar (KEAX), 55 km from the middle of the area, began a volume at 00:34 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

Topeka, KS (KFOE), launched 00:00Z, 0.6 hours before the alert went out and 124 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: 312 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 2282 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 29, 6:30 PM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, May 29, 6:30 PM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, May 29, 5:27 AM CDT, 14 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
527 AM CDT Tue May 29 2018

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-301030-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
527 AM CDT Tue May 29 2018

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...Today and Tonight

 Strong to severe storms are possible this evening into the overnight
hours for northwest MO and northeast KS. Hail and damaging winds are
the main concerns.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

 Storm chances continue for Wednesday across the forecast area,
though no severe weather is expected at this time. Storms are also
possible Thursday, mainly for those south of HWY 36. There is
potential for strong to severe storms, with hail and damaging winds
be the main concerns right now.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

In the hours before

Special weather statement, May 29, 4:46 PM CDT, 2 hours 49 minutes before

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Special weather statement, May 29, 5:32 PM CDT, 2 hours 3 minutes before

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Special weather statement, May 29, 6:05 PM CDT, 1 hour 30 minutes before

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Special weather statement, May 29, 6:10 PM CDT, 1 hour 25 minutes before

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Local storm report, May 29, 6:46 PM CDT, 49 minutes before

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Special weather statement, May 29, 6:57 PM CDT, 38 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
May 29, 7:03 PM CDT	Special Weather Statement	EAX	Platte	27 min
May 29, 7:09 PM CDT	Areal Flood Advisory	EAX	Andrew, Buchanan, DeKalb	3 hr
May 29, 7:27 PM CDT	Special Weather Statement	EAX	Platte	18 min
May 29, 11:54 PM CDT	Special Weather Statement	EAX	Bates, Cass, Jackson	36 min
May 30, 12:07 AM CDT	Areal Flood Advisory	EAX	Platte	4 hr
May 30, 12:27 AM CDT	Special Weather Statement	EAX	Bates, Buchanan, Cass, Clay, Clinton, DeKalb and 1 more	48 min
May 30, 12:57 AM CDT	Areal Flood Advisory	EAX	Andrew, Buchanan, DeKalb	3 hr
May 29, 11:15 PM CDT	Special Weather Statement	EAX	Wyandotte	30 min

Nearby

Special Weather Statements in Missouri, 2018 Every special weather statement in 2018

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.