Alert archive / Missouri / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 268, NWS Kansas City, MO

September 10, 2015Jackson County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Sep 10, 2015, 9:15 PM CDT for Jackson County, Missouri. It was in force for 30 min. 3 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: Sep 10, 2015, 9:15 PM CDT (02:15 UTC)
Expired: Sep 10, 2015, 9:45 PM CDT
In force: 30 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 37 km from the middle of the area, began a volume at 02:14 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
Sep 10, 9:20 PM CDT	TSTM WND GST 50	Independence, MO	40 TO 50 MPH WINDS ESTIMATED.
Sep 10, 9:20 PM CDT	TSTM WND GST 65	5 E Kansas City, MO	ESTIMATED 60-65 MPH WINDS AT MILE MARKER 6 ON INTERSTATE 70W.
Sep 10, 9:24 PM CDT	TSTM WND DMG	2 Se Kansas City, MO	SEVERAL REPORTS FROM KC FIRE OF TREE LIMBS AND POWER LINES DOWN...SOUTH AND EAST OF THE DOWNTOWN KC AREA

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 5 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
Sep 10, 8:03 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 2.3 hours before the alert went out and 100 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: 3190 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1398 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 9.7

Open this sounding in Storm Lab

The text

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

659 
WUUS53 KEAX 110215
SVREAX
MOC095-110245-
/O.NEW.KEAX.SV.W.0268.150911T0215Z-150911T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
915 PM CDT THU SEP 10 2015

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN JACKSON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 945 PM CDT

* AT 914 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR RAYTOWN...
  MOVING EAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  KANSAS CITY...INDEPENDENCE...LEE'S SUMMIT...BLUE SPRINGS...
  LEAWOOD...RAYTOWN...PRAIRIE VILLAGE...NORTH KANSAS CITY...MISSION
  HILLS...SUGAR CREEK...LAKE LOTAWANA...WESTWOOD...LAKE TAPAWINGO...
  WESTWOOD HILLS...MISSION WOODS AND UNITY VILLAGE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 70 IN MISSOURI BETWEEN MILE MARKERS 1 AND 20.
 INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 0 AND 4.
 INTERSTATE 35 IN KANSAS NEAR MILE MARKER 235.
 INTERSTATE 470 BETWEEN MILE MARKERS 0 AND 16.
 INTERSTATE 435 BETWEEN MILE MARKERS 56 AND 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3911 9461 3912 9457 3914 9454 3915 9452
      3915 9449 3912 9446 3914 9443 3918 9426
      3892 9426 3893 9461
TIME...MOT...LOC 0214Z 259DEG 21KT 3905 9449 

HAIL...<.75IN
WIND...60MPH
 
$$

CDB

2 follow-up statements

454 
WWUS53 KEAX 110225
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
925 PM CDT THU SEP 10 2015

MOC095-110245-
/O.CON.KEAX.SV.W.0268.000000T0000Z-150911T0245Z/
JACKSON MO-
925 PM CDT THU SEP 10 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR WESTERN JACKSON COUNTY...

AT 923 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER LAKE
TAPAWINGO...OR NEAR BLUE SPRINGS...MOVING EAST AT 25 MPH.

HAZARD...70 MPH WIND GUSTS. 

SOURCE...LAW ENFORCEMENT AND TRAINED SPOTTERS REPORTED DAMAGING 
WINDS. 

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

LOCATIONS IMPACTED INCLUDE...
KANSAS CITY...INDEPENDENCE...LEE'S SUMMIT...BLUE SPRINGS...LEAWOOD...
RAYTOWN...PRAIRIE VILLAGE...NORTH KANSAS CITY...MISSION HILLS...SUGAR
CREEK...LAKE LOTAWANA...WESTWOOD...LAKE TAPAWINGO...WESTWOOD HILLS...
MISSION WOODS AND UNITY VILLAGE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 70 IN MISSOURI BETWEEN MILE MARKERS 1 AND 20.
 INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 0 AND 4.
 INTERSTATE 35 IN KANSAS NEAR MILE MARKER 235.
 INTERSTATE 470 BETWEEN MILE MARKERS 0 AND 16.
 INTERSTATE 435 BETWEEN MILE MARKERS 56 AND 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3911 9461 3912 9457 3914 9454 3915 9452
      3915 9449 3912 9446 3914 9443 3918 9426
      3892 9426 3893 9461
TIME...MOT...LOC 0223Z 276DEG 23KT 3901 9436 

HAIL...<.75IN
WIND...70MPH
 
$$

CDB

450 
WWUS53 KEAX 110242
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
942 PM CDT THU SEP 10 2015

MOC095-110251-
/O.EXP.KEAX.SV.W.0268.000000T0000Z-150911T0245Z/
JACKSON MO-
942 PM CDT THU SEP 10 2015

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN JACKSON COUNTY WILL
EXPIRE AT 945 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER 
GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
NORTHEASTERN KANSAS AND WEST CENTRAL MISSOURI.

LAT...LON 3911 9461 3912 9457 3914 9454 3915 9452
      3915 9449 3912 9446 3914 9443 3918 9426
      3892 9426 3893 9461
TIME...MOT...LOC 0240Z 259DEG 21KT 3901 9436 

$$

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 Sep 10, 6:42 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Sep 10, 6:42 PM CDT, 2 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
642 PM CDT THU SEP 10 2015

.DISCUSSION...
Issued at 216 PM CDT THU SEP 10 2015

In the near-term storms have begin to develop in the southeastern
portion of the CWA along an outflow boundary left over from this
morning's storms. To our west several clusterS of storms have also
developed ahead of a mid-level speed max and associated shortwave
trough and surface cold front. At this time expecting the activity
in southern Nebraska to move southeast into the CWA early this
evening. Main severe threats will be large hail, damaging wind, and
locally heavy rainfall. The storms will move across much of the CWA
this evening and the early overnight period. Behind the storms much
cooler and drier air will begin to advect into the CWA.

For tomorrow and into early next week we will see much cooler
temperatures and dry weather. By the middle of the week we return to
normal daytime high temperatures. Furthermore a series of low
amplitude shortwave troughs will brush the CWA embedded in deep-
layer southwest flow allowing for the chance of scattered
showers/storms...but nothing appears too aggressive/organized at this
time.

&&

.AVIATION...(For the 00Z TAFS through 00Z Friday Evening)
Issued at 630 PM CDT THU SEP 10 2015

Little change to going TAF. Confidence still moderate for upstream
storms to consolidate into a cluster and move into terminals.
Improving conditions after 05-06Z with VFR thereafter.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
MO...NONE.
&&

DISCUSSION...Pietrycha
AVIATION...Blair

Hazardous weather outlook, Sep 10, 6:07 AM CDT, 15 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
607 AM CDT THU SEP 10 2015

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-111115-
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-
607 AM CDT THU SEP 10 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 WILL BE POSSIBLE TODAY ACROSS MUCH OF THE AREA. SOME
STORMS WILL HAVE THE POTENTIAL TO BECOME STRONG TO SEVERE WITH THE
PRIMARY THREATS BEING GUSTY TO DAMAGING WINDS...HAIL...DANGEROUS
CLOUD-TO-GROUND LIGHTNING...AND MODERATE TO LOCALLY HEAVY RAINFALL.

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

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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

In the hours before

Local storm report, Sep 10, 8:32 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
832 PM CDT THU SEP 10 2015

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

0828 PM     TSTM WND GST     3 N LINWOOD             39.04N 95.04W
09/10/2015  E55.00 MPH       LEAVENWORTH        KS   EMERGENCY MNGR

0829 PM     HAIL             1 NNW OLATHE            38.90N 94.82W
09/10/2015  E1.00 INCH       JOHNSON            KS   PUBLIC

            REPORT VIA MPING

&&

JL

Local storm report, Sep 10, 8:41 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
841 PM CDT THU SEP 10 2015

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

0838 PM     HAIL             3 WSW DE SOTO           38.96N 95.02W
09/10/2015  E0.75 INCH       JOHNSON            KS   PUBLIC

            REPORT VIA MPING

&&

JL

Special weather statement, Sep 10, 8:51 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
851 PM CDT THU SEP 10 2015

MOZ008-110215-
SCHUYLER MO-
851 PM CDT THU SEP 10 2015

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN SCHUYLER COUNTY UNTIL 915
PM CDT...

AT 850 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTH OF LANCASTER...MOVING SOUTHEAST AT 30 MPH.

NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LANCASTER AND DOWNING.

LAT...LON 4060 9235 4035 9235 4034 9242 4035 9243
      4056 9258 4059 9260
TIME...MOT...LOC 0150Z 322DEG 24KT 4063 9249

CDB

Local storm report, Sep 10, 8:58 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
858 PM CDT THU SEP 10 2015

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

0835 PM     TSTM WND DMG     3 SE BONNER SPRINGS     39.03N 94.84W
09/10/2015                   JOHNSON            KS   TRAINED SPOTTER

            TREE 2FT DIAMETER BLOCKING ROAD AT 66TH AND MONTICELLO

&&

SBLAIR

Local storm report, Sep 10, 9:09 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
909 PM CDT THU SEP 10 2015

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

0906 PM     TSTM WND DMG     PARKVILLE               39.20N 94.68W
09/10/2015                   PLATTE             MO   EMERGENCY MNGR

            TREE LIMB SNAPPED AND FELL ONTO POWER LINE

&&

SBLAIR

Local storm report, Sep 10, 9:15 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
915 PM CDT THU SEP 10 2015

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

0911 PM     TSTM WND DMG     4 S KANSAS CITY         39.04N 94.58W
09/10/2015                   JACKSON            MO   FIRE DEPT/RESCUE

            TREE LIMB FELL ONTO POWER LINES SOUTH OF DOWNTOWN KANSAS
            CITY

&&

SBLAIR

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 8:40 PM CDT	Severe Thunderstorm Warning	EAX	Platte	50 min
Sep 10, 8:51 PM CDT	Special Weather Statement	EAX	Schuyler	24 min
Sep 10, 9:08 PM CDT	Areal Flood Advisory	EAX	Clay, Jackson, Platte	4 hr
Sep 10, 9:27 PM CDT	Flash Flood Warning	EAX	Clay, Jackson, Platte	4 hr
Sep 10, 9:51 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	54 min
Sep 10, 10:03 PM CDT	Flash Flood Warning	EAX	Clay, Platte	4 hr
Sep 10, 10:25 PM CDT	Flash Flood Warning	EAX	Clay, Jackson	4 hr
Sep 10, 10:45 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	31 min
Sep 10, 11:18 PM CDT	Special Weather Statement	EAX	Henry, Johnson	42 min
Sep 11, 1:28 AM CDT	Areal Flood Warning	EAX	Clay, Jackson, Platte	9 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.