Alert archive / Missouri / Special Weather Statements in 2018

Special Weather Statement, NWS Kansas City, MO

June 28, 2018Chariton County, Missouri

NWS Kansas City, MO issued this special weather statement at Jun 28, 2018, 6:47 AM CDT for Chariton County, Missouri. It was in force for 28 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: Jun 28, 2018, 6:47 AM CDT (11:47 UTC)
Expired: Jun 28, 2018, 7:15 AM CDT
In force: 28 min
Issued by: NWS Kansas City, MO

County Chariton County, MO

The radar

The Pleasant Hill radar (KEAX), 156 km from the middle of the area, began a volume at 11:49 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, 11.8 hours before the alert went out and 249 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: 4944 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1466 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 13.9

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 Jun 28, 6:31 AM CDT, 16 minutes earlier.

Area forecast discussion, Jun 28, 6:31 AM CDT, 16 minutes before

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Hazardous weather outlook, Jun 28, 5:20 AM CDT, 1 hour 27 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
520 AM CDT Thu Jun 28 2018

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-291030-
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-
520 AM CDT Thu Jun 28 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

 Isolated strong to severe storms possible this morning with hail up
 to one inch being the primary threat.

 An Extreme Heat Warning is in effect from noon today through
 Saturday evening for northeast Kansas and much of western Missouri
 for temperatures in the upper 90s and around 100 and heat index
 values of 105 to 112 degrees.

 Elsewhere, a Heat Advisory will be in effect today through
 Saturday. Highs will be in the mid to upper 90s with heat index
 values between 103 and 109.

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

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

 Hot weather will continue through Saturday with temperatures
 ranging from the mid to upper 90s for much of the area. Heat
 indices will generally range from 100 to 105 degrees Friday and
 Saturday.

 Storm chances return Saturday night with strong to severe storms
 possible across northwest Missouri.

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

In the hours before

Special weather statement, Jun 28, 2:53 AM CDT, 3 hours 54 minutes before

Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
253 AM CDT THU JUN 28 2018

MOZ006-015-016-280830-
Grundy MO-Mercer MO-Sullivan MO-
253 AM CDT THU JUN 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN GRUNDY...
SOUTHEASTERN MERCER AND NORTHWESTERN SULLIVAN COUNTIES UNTIL 330 AM
CDT...

At 252 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southeast of Princeton, or 19 miles northwest of Milan, moving
southeast at 30 mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Newtown, Humphreys, Harris and Osgood.

LAT...LON 4042 9337 4038 9337 4038 9325 4034 9308
      4009 9330 4029 9359 4044 9346
TIME...MOT...LOC 0752Z 297DEG 24KT 4034 9344

Grana

Special weather statement, Jun 28, 3:45 AM CDT, 3 hours 2 minutes before

Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
345 AM CDT THU JUN 28 2018

MOZ015-016-024-280915-
Grundy MO-Linn MO-Sullivan MO-
345 AM CDT THU JUN 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LINN...SOUTHEASTERN
GRUNDY AND SOUTHWESTERN SULLIVAN COUNTIES UNTIL 415 AM CDT...

At 345 AM CDT, Doppler radar was tracking a strong thunderstorm near
Galt, or 8 miles east of Trenton, moving southeast at 20 mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Trenton, Galt, Laredo and Humphreys.

LAT...LON 4012 9312 3988 9332 3991 9337 3997 9336
      3997 9345 4007 9360 4020 9351
TIME...MOT...LOC 0845Z 295DEG 19KT 4009 9345

Grana

Special weather statement, Jun 28, 4:36 AM CDT, 2 hours 11 minutes before

Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
436 AM CDT THU JUN 28 2018

MOZ006-007-016-281000-
Putnam MO-Mercer MO-Sullivan MO-
436 AM CDT THU JUN 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN PUTNAM...EASTERN MERCER
AND NORTHWESTERN SULLIVAN COUNTIES UNTIL 500 AM CDT...

At 436 AM CDT, Doppler radar was tracking a strong thunderstorm 11
miles east of Mercer, or 16 miles west of Unionville, moving
southeast at 25 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Unionville, Mercer, Newtown, Pollock, Lucerne, Harris, Powersville,
South Lineville and Lemons.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4043 9285 4019 9330 4025 9337 4027 9336
      4026 9339 4057 9374 4058 9357 4058 9316
TIME...MOT...LOC 0936Z 298DEG 21KT 4050 9332

PP

Local storm report, Jun 28, 6:02 AM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
602 AM CDT THU JUN 28 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 AM     HAIL             5 NW HUMPHREYS          40.20N 93.24W
06/28/2018  E1.00 INCH       SULLIVAN           MO   TRAINED SPOTTER

&&

PP

Special weather statement, Jun 28, 6:47 AM 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
Jun 28, 2:53 AM CDT	Special Weather Statement	EAX	Sullivan	37 min
Jun 28, 3:45 AM CDT	Special Weather Statement	EAX	Grundy	30 min
Jun 28, 3:53 AM CDT	Severe Thunderstorm Warning	EAX	Grundy, Linn, Sullivan	37 min
Jun 28, 4:21 AM CDT	Severe Thunderstorm Warning	EAX	Linn	24 min
Jun 28, 4:36 AM CDT	Special Weather Statement	EAX	Mercer, Putnam	24 min
Jun 28, 4:42 AM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn	33 min
Jun 28, 5:05 AM CDT	Severe Thunderstorm Warning	EAX	Grundy, Mercer, Putnam, Sullivan	40 min
Jun 28, 5:13 AM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn, Saline	20 min
Jun 28, 5:38 AM CDT	Severe Thunderstorm Warning	EAX	Grundy, Linn, Sullivan	37 min
Jun 28, 5:54 AM CDT	Severe Thunderstorm Warning	EAX	Putnam, Schuyler	23 min
Jun 28, 6:10 AM CDT	Severe Thunderstorm Warning	EAX	Linn, Sullivan	35 min
Jun 28, 12:55 PM CDT	Severe Thunderstorm Warning	EAX	Putnam, Schuyler	65 min
Jun 28, 1:46 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler, Sullivan	59 min
Jun 28, 2:05 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon	40 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.