Alert archive / Missouri / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 102, NWS Kansas City, MO

June 11, 20154 counties in Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 11, 2015, 8:49 PM CDT for 4 counties in Missouri. It was in force for 41 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 11, 2015, 8:49 PM CDT (01:49 UTC)
Expired: Jun 11, 2015, 9:30 PM CDT
In force: 41 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 0.88 in
Wind: 70.0 mph

Counties Buchanan County, MO, Clinton County, MO, DeKalb County, MO, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 95 km from the middle of the area, began a volume at 01:53 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.

What was reported inside it

Time	Report	Where	Remark
Jun 11, 8:57 PM CDT	TSTM WND GST 60	Gower, MO
Jun 11, 9:18 PM CDT	TSTM WND GST 60	Plattsburg, MO	RELAYED FROM FOX 4 WDAF.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 8 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 11, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 1.8 hours before the alert went out and 123 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: 938 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1811 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 314 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 10.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

390 
WUUS53 KEAX 120149
SVREAX
MOC021-049-063-165-120230-
/O.NEW.KEAX.SV.W.0102.150612T0149Z-150612T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
849 PM CDT THU JUN 11 2015

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BUCHANAN COUNTY IN NORTHWEST MISSOURI...
  CLINTON COUNTY IN NORTHWEST MISSOURI...
  SOUTH CENTRAL DEKALB COUNTY IN NORTHWEST MISSOURI...
  NORTHEASTERN PLATTE COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 930 PM CDT

* AT 848 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM AGENCY TO CAMDEN POINT...AND MOVING EAST AT 40 MPH.

  HAZARD...70 MPH WIND GUSTS AND NICKEL SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  GOWER...PLATTSBURG...LATHROP...CAMERON...EDGERTON...
  STEWARTSVILLE...OSBORN...EASTON AND TURNEY.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...

  I-35 BETWEEN MILE MARKERS 38 AND 53.
  I-29 BETWEEN MILE MARKERS 26 AND 43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 3981 9424 3967 9421 3952 9425 3946 9480
      3958 9481 3970 9481
TIME...MOT...LOC 0149Z 258DEG 34KT 3971 9471 3960 9468
          3945 9476

HAIL...0.88IN
WIND...70MPH

$$

MJ

2 follow-up statements

490 
WWUS53 KEAX 120207
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
907 PM CDT THU JUN 11 2015

MOC021-165-120217-
/O.CAN.KEAX.SV.W.0102.000000T0000Z-150612T0230Z/
BUCHANAN MO-PLATTE MO-
907 PM CDT THU JUN 11 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PLATTE AND
SOUTHEASTERN BUCHANAN COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 3981 9424 3967 9421 3952 9425 3949 9460
      3962 9459 3967 9461 3973 9460
TIME...MOT...LOC 0207Z 262DEG 44KT 3971 9439 3959 9434
          3950 9442

$$

MOC049-063-120230-
/O.CON.KEAX.SV.W.0102.000000T0000Z-150612T0230Z/
CLINTON MO-DEKALB MO-
907 PM CDT THU JUN 11 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
DEKALB AND CLINTON COUNTIES UNTIL 930 PM CDT...

AT 906 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM OSBORN TO LATHROP TO 5 MILES SOUTH OF PLATTSBURG...AND
MOVING EAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
LATHROP...CAMERON...OSBORN AND TURNEY.

THIS WILL IMPACT

 I-35 BETWEEN MILE MARKERS 37 AND 52.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 3981 9424 3967 9421 3952 9425 3949 9460
      3962 9459 3967 9461 3973 9460
TIME...MOT...LOC 0207Z 262DEG 44KT 3971 9439 3959 9434
          3950 9442

HAIL...0.75IN
WIND...60MPH

$$

MJ

759 
WWUS53 KEAX 120227 RRA
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
927 PM CDT THU JUN 11 2015

MOC049-063-120236-
/O.EXP.KEAX.SV.W.0102.000000T0000Z-150612T0230Z/
CLINTON MO-DEKALB MO-
927 PM CDT THU JUN 11 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL DEKALB AND 
CLINTON COUNTIES HAS BEEN REISSUED AND CONTINUED EAST INTO CALDWELL 
AND DAVIESS COUNTIES...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

LAT...LON 3981 9424 3967 9421 3952 9425 3949 9460
      3962 9459 3967 9461 3973 9460
TIME...MOT...LOC 0226Z 262DEG 44KT 3974 9409 3962 9404
          3953 9412

$$

CDB

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 11, 6:26 PM CDT, 2 hours 23 minutes earlier.

Area forecast discussion, Jun 11, 6:26 PM CDT, 2 hours 23 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
626 PM CDT Thu Jun 11 2015

.DISCUSSION...
Issued at 203 PM CDT THU JUN 11 2015

An active afternoon and evening is starting to shape up for strong
to severe thunderstorms that should affect most of the area. At this
time we have a tornado watch out until 02z where supercells are
expected to develop ahead of a surface low and along a warm front
across our far northwestern counties. Shear and instability
parameters favor very large hail and a possible tornado or two. The
surface low should track across southern IA this evening with an
attended cold front moving into the CWA from the northwest.
Additional storms are anticipated to develop along the cold front and
those too are expected to be strong to severe. Would not be surprised
to see a severe watch issued to handle those storms. Latest NPW,
especially the HRRR, bring the line of storms into the KC Metro area
between 6 to 9 pm. Large hail, strong wind gusts, and locally heavy
rain will be the concerns with the line. Also, we have many of our
northern counties under a flash flood watch through 12z tomorrow
given the saturated soils and the expected convection. Lastly a
portion of a MCS may work in from the southwest very late tonight
along and north of the cold front. At this time, if the MCS develops,
our southeast counties would get brushed by it.

The rest of the forecast period will remain unsettled and on the wet
side of things as multiple disturbances track across the region.

&&

.AVIATION...(For the 00Z TAFS through 00Z Friday Evening)
Issued at 617 PM CDT THU JUN 11 2015

VFR conditions at the terminals will give way to MVFR and possibly
IFR conditions this evening as a modest front and associated
thunderstorms moves through. Latest TEMPO groups in the TAFs
highlight the best timing for the storms, though vicinity activity
might bubble up ahead of and behind the timed front. Gusty surface
winds will veer to the southwest and finally the northwest behind the
front late tonight as they bring in MVFR clouds. Confidence in the
height of the cloud deck and how long it will hang around though is
low. Otherwise, threat of storms Friday afternoon is sufficiently
scattered enough that we have left any mention out of the terminals
for now.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...FLASH FLOOD WATCH through Friday morning FOR KSZ102.

MO...FLASH FLOOD WATCH through Friday morning FOR MOZ001>008-011>017.

&&

DISCUSSION...Pietrycha
AVIATION...Cutter

Hazardous weather outlook, Jun 11, 5:35 AM CDT, 15 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
535 AM CDT THU JUN 11 2015

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-121045-
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-
535 AM CDT THU JUN 11 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND
WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS.

.DAY ONE...TODAY AND TONIGHT

 THUNDERSTORMS LATER TODAY ARE EXPECTED TO REDEVELOP WITH STRONG
TO SEVERE STORMS POSSIBLE. THE PRIMARY HAZARDS WITH THE STRONGEST
STORMS WILL BE MODERATE TO HEAVY RAINFALL...CAUSING LOCALIZED
FLOODING CONCERNS...GUSTY TO DAMAGING WINDS...HAIL...DANGEROUS
CLOUD-TO-GROUND LIGHTNING...AND A SLIGHT RISK FOR TORNADO
DEVELOPMENT.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

 MULTIPLE ROUNDS OF THUNDERSTORM ACTIVITY WILL CONTINUE THROUGH
NEXT WEEK WITH MODERATE TO HEAVY RAINFALL VERY POSSIBLE OVER THE
WEEKEND.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

In the hours before

Local storm report, Jun 11, 8:11 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
811 PM CDT THU JUN 11 2015

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

0706 PM     TSTM WND DMG     SAVANNAH                39.94N 94.83W
06/11/2015                   ANDREW             MO   LAW ENFORCEMENT

            ESTIMATED 40 TO 50 POWER POLES SNAPPED BETWEEN AMAZONIA
            AND SAVANNAH AND ROSENDALE. MULTIPLE TREES UPROOTED IN
            SAVANNAH. TIME ESTIMATED FROM RADAR.

&&

PMURRAY

Local storm report, Jun 11, 8:12 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
812 PM CDT THU JUN 11 2015

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

0706 PM     HAIL             SAVANNAH                39.94N 94.83W
06/11/2015  E0.75 INCH       ANDREW             MO   LAW ENFORCEMENT

            DIME TO PENNY SIZE HAIL. TIME ESTIMATED FROM RADAR.

&&

PMURRAY

Local storm report, Jun 11, 8:19 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
819 PM CDT THU JUN 11 2015

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

0812 PM     FLASH FLOOD      2 ENE ROSENDALE         40.05N 94.79W
06/11/2015                   ANDREW             MO   LAW ENFORCEMENT

            HWY 48 FLOODING. LOCATION ESTIMATED BASED OFF RADAR
            RAINFALL ESTIMATES.

&&

PMURRAY

Local storm report, Jun 11, 8:23 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
823 PM CDT THU JUN 11 2015

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

0812 PM     FLASH FLOOD      5 WNW SAVANNAH          39.97N 94.91W
06/11/2015                   ANDREW             MO   LAW ENFORCEMENT

            FLOODING REPORTED ALONG HWY 59. LOCATION ESTIMATED BASED
            ON RADAR RAINFALL TOTALS.

&&

PMURRAY

Local storm report, Jun 11, 8:24 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
824 PM CDT THU JUN 11 2015

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

0815 PM     TSTM WND GST     1 E GALLATIN            39.91N 93.94W
06/11/2015  E60 MPH          DAVIESS            MO   TRAINED SPOTTER

            60 MPH WIND GUST WITH VERY HEAVY RAIN.

&&

AEP

Local storm report, Jun 11, 8:42 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
842 PM CDT THU JUN 11 2015

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

0738 PM     TSTM WND DMG     4 S LANCASTER           39.52N 95.31W
06/11/2015                   ATCHISON           KS   LAW ENFORCEMENT

            TWO BARNS HEAVILY DAMAGED ALONG 260TH ROAD.

&&

PMURRAY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:11 PM CDT	Flash Flood Warning	EAX	Andrew, Buchanan, Caldwell, Clinton, Daviess, DeKalb and 2 more	6 hr
Jun 11, 7:14 PM CDT	Flash Flood Warning	EAX	Adair, Grundy, Harrison, Mercer, Putnam, Schuyler and 1 more	6 hr
Jun 11, 7:17 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, DeKalb	43 min
Jun 11, 7:24 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan	36 min
Jun 11, 7:32 PM CDT	Severe Thunderstorm Warning	EAX	Putnam, Sullivan	43 min
Jun 11, 7:42 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess, DeKalb, Grundy, Livingston	48 min
Jun 11, 7:54 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler, Sullivan	51 min
Jun 11, 8:22 PM CDT	Severe Thunderstorm Warning	EAX	Grundy, Linn, Livingston, Sullivan	38 min
Jun 11, 8:34 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan	41 min
Jun 11, 8:40 PM CDT	Areal Flood Advisory	EAX	Buchanan, Platte	4 hr
Jun 11, 8:40 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon, Schuyler	50 min
Jun 11, 9:22 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess, Grundy, Livingston	38 min
Jun 11, 9:25 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Daviess, DeKalb	29 min
Jun 11, 9:34 PM CDT	River Flood Warning	EAX	Daviess, Gentry	55 hr
Jun 11, 9:52 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Livingston	38 min
Jun 11, 9:55 PM CDT	Severe Thunderstorm Warning	EAX	Linn, Livingston, Sullivan	14 min
Jun 11, 10:20 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Linn, Livingston, Macon	40 min
Jun 11, 10:28 PM CDT	Flash Flood Warning	EAX	Andrew, Holt	3 hr
Jun 11, 10:50 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Macon, Randolph	30 min
Jun 11, 10:51 PM CDT	Areal Flood Warning	EAX	Atchison, Holt, Nodaway	7 hr
Jun 11, 11:29 PM CDT	Areal Flood Warning	EAX	Adair, Caldwell, Chariton, Daviess, Grundy, Linn and 3 more	6 hr
Jun 12, 12:42 AM CDT	Areal Flood Warning	EAX	Andrew, Atchison, Holt, Nodaway	10 hr
Jun 12, 1:09 AM CDT	Special Weather Statement	EAX	Sullivan	36 min
Jun 12, 8:36 AM CDT	River Flood Warning	EAX	Daviess, Livingston	56 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.