Alert archive / Missouri / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 107, NWS Kansas City, MO

June 5, 2020Atchison County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 5, 2020, 1:00 AM CDT for Atchison County, Missouri. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 5, 2020, 1:00 AM CDT (06:00 UTC)
Expired: Jun 5, 2020, 1:30 AM CDT
In force: 30 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Atchison County, MO

The radar

The Omaha radar (KOAX), 127 km from the middle of the area, began a volume at 05:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 4, 11:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.0 hours before the alert went out and 127 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: 1422 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 2024 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 5, 12:24 AM CDT, 36 minutes earlier.

Area forecast discussion, Jun 5, 12:24 AM CDT, 36 minutes before

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Hazardous weather outlook, Jun 4, 5:22 AM CDT, 19 hours 38 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
522 AM CDT Thu Jun 4 2020

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-051030-
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-
522 AM CDT Thu Jun 4 2020

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

.DAY ONE...Today and Tonight

Storms will return to the area overnight tonight across northern
Missouri. These storms could be strong to severe with damaging wind
being the main threat.

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

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

 Friday we are looking for temperatures to climb into the lower 90s
with heat indices near 100 across most of the area. Late Friday
afternoon into the event another round of isolated strong to severe
thunderstorms is possible over western and northern Missouri. Large
hail and damaging winds will be possible with these storms. The
pattern settles down until Monday night into Tuesday when the
remnants of a tropical system may move into the area creating a
flooding hazard for our region on Tuesday.

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

In the hours before

Local storm report, Jun 4, 7:53 PM CDT, 5 hours 7 minutes before

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Local storm report, Jun 4, 8:01 PM CDT, 4 hours 59 minutes before

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Local storm report, Jun 4, 8:35 PM CDT, 4 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
835 PM CDT THU JUN 4 2020

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

0307 AM     TSTM WND DMG     4 N WARRENSBURG         38.81N 93.73W
06/04/2020                   JOHNSON            MO   PUBLIC

            75 FT TALL OAK TREE SNAPPED ABOUT 6 FEET
            ABOVE THE GROUND AND FELL INTO OTHER TREES.
            TIME ESTIMATED FROM RADAR.

&&

CDB

Special weather statement, Jun 5, 12:42 AM CDT, 18 minutes before

Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
1242 AM CDT Fri Jun 5 2020

KSZ102-MOZ001-011-050630-
Doniphan KS-Atchison MO-Holt MO-
1242 AM CDT Fri Jun 5 2020

...SIGNIFICANT WEATHER ADVISORY FOR ATCHISON AND NORTHWESTERN HOLT
COUNTIES UNTIL 130 AM CDT...

At 1242 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Nebraska City to near Talmage to near
Johnson. Movement was southeast at 45 mph.

Half inch hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Tarkio, Mound City, Rock Port, Fairfax, Craig, White Cloud, Rockport,
Big Lake, Westboro, Watson, Blanchard, Fortescue, Bigelow, Corning,
Phelps City and Indian Cave State Park.

This includes Interstate 29 between mile markers 84 and 123.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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.

&&

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northeastern Kansas...and northwestern Missouri.

LAT...LON 4058 9577 4058 9520 4024 9518 3991 9533
      4000 9534 4000 9531 4004 9542 4012 9539
      4018 9548 4024 9547 4026 9555 4030 9556
      4031 9566 4034 9562 4046 9564 4048 9570
      4054 9565 4056 9568 4052 9575 4057 9577
TIME...MOT...LOC 0542Z 300DEG 40KT 4072 9588 4055 9592 4038 9598

CDB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 8:30 PM CDT	River Flood Warning	EAX	Carroll, Lafayette, Saline	29 hr
Jun 4, 8:30 PM CDT	River Flood Warning	EAX	Cooper, Howard	49 hr
Jun 5, 12:42 AM CDT	Special Weather Statement	EAX	Atchison	48 min
Jun 5, 1:22 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	25 hr
Jun 5, 1:26 AM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt, Nodaway	49 min
Jun 5, 1:57 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, Holt, Nodaway	48 min
Jun 5, 2:30 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, DeKalb, Gentry, Holt, Nodaway	60 min
Jun 5, 2:57 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clay, Clinton, Jackson, Platte	48 min
Jun 5, 3:05 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Clay, Clinton, Daviess, DeKalb and 6 more	40 min
Jun 5, 3:23 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Jackson	52 min
Jun 5, 3:36 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Clay, Clinton, Jackson, Johnson, Lafayette and 2 more	39 min
Jun 5, 3:40 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Clay, Clinton, Daviess, DeKalb and 4 more	50 min
Jun 5, 4:11 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Clay, Henry, Jackson, Johnson, Lafayette and 1 more	49 min
Jun 5, 4:12 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	48 min
Jun 5, 4:20 AM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Lafayette, Linn, Livingston, Ray and 1 more	40 min
Jun 5, 4:54 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Henry, Johnson, Lafayette, Pettis, Saline	36 min
Jun 5, 4:57 AM CDT	Special Weather Statement	EAX	Chariton, Howard, Randolph, Saline	78 min
Jun 5, 5:29 AM CDT	Special Weather Statement	EAX	Cooper	46 min
Jun 5, 2:41 PM CDT	Heat Advisory	EAX	Bates, Buchanan, Cass, Clay, Jackson, Platte	28 hr
Jun 5, 2:13 AM CDT	Severe Thunderstorm Warning	EAX	Doniphan	32 min
Jun 5, 2:44 AM CDT	Special Weather Statement	EAX	Leavenworth	46 min
Jun 5, 2:51 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Leavenworth, Miami, Wyandotte	39 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2020 Every severe thunderstorm warning in 2020

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.