Alert archive / Kansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS Kansas City, MO

June 15, 2017Atchison County, Leavenworth County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 15, 2017, 8:36 PM CDT for Atchison County, Leavenworth County, Kansas. It was in force for 39 min. 7 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 15, 2017, 8:36 PM CDT (01:36 UTC)
Expired: Jun 15, 2017, 9:15 PM CDT
In force: 39 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Atchison County, KS, Leavenworth County, KS

The radar

The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 01:36 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 15, 8:55 PM CDT	HAIL 1	4 W Leavenworth, KS	SPOTTER REPORTS VIA EM NICKEL TO QUARTER SIZE HAIL
Jun 15, 8:55 PM CDT	HAIL 1	4 W Leavenworth, KS	SPOTTER REPORTS VIA EM NICKEL TO QUARTER SIZE HAIL.
Jun 15, 9:01 PM CDT	TSTM WND DMG	1 Ene Lansing, KS	FIRE REPORTS VIA EM OF SEVERAL TREES DOWN AND APPROXIMATELY 60MPH WINDS IN THE CITY OF LANSING. LARGEST TREE DOWN WAS APPROXIMATELY 10 INCHES IN DIAMETER, ALONG WITH SEVERAL 4-6 INCH LIMBS. POWERLINES DOWN AND POWER OUTAGES AS WELL.
Jun 15, 9:01 PM CDT	TSTM WND DMG	Lansing, KS	FIRE REPORTS VIA EM OF SEVERAL TREES DOWN AND APPROXIMATELY 60MPH WINDS IN THE CITY OF LANSING
Jun 15, 9:01 PM CDT	TSTM WND DMG	Lansing, KS	FIRE REPORTS VIA EM OF SEVERAL TREES DOWN AND APPROXIMATELY 60MPH WINDS IN THE CITY OF LANSING. LARGEST TREE DOWN WAS APPROXIMATELY 10 INCHES IN DIAMETER, ALONG WITH SEVERAL 4-6 INCH LIMBS. POWERLINES DOWN AND POWER OUTAGES AS WELL.
Jun 15, 9:02 PM CDT	HAIL 1	5 Wsw Leavenworth, KS	SPOTTER REPORTS VIA EM QUARTER SIZE HAIL AT 187TH ST AND HIGH PRAIRIE RD.
Jun 15, 9:02 PM CDT	HAIL 1	6 Nne Jarbalo, KS	SPOTTER REPORTS VIA EM QUARTER SIZE HAIL AT 187TH ST AND HIGH PRAIRIE RD.

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

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 15, 6:39 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 15, 7:07 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 1.6 hours before the alert went out and 67 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: 1569 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1423 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

187 
WUUS53 KEAX 160136
SVREAX
KSC005-103-160215-
/O.NEW.KEAX.SV.W.0101.170616T0136Z-170616T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
836 PM CDT THU JUN 15 2017

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Northern Leavenworth County in northeastern Kansas...
  Southeastern Atchison County in northeastern Kansas...

* Until 915 PM CDT

* At 836 PM CDT, a severe thunderstorm was located near Winchester,
  or 10 miles northeast of Oskaloosa, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Leavenworth, Lansing, Easton, Lowemont, Jarbalo and Potter. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3949 9505 3949 9504 3947 9505 3946 9503
      3945 9499 3924 9486 3917 9518 3942 9518
      3942 9525
TIME...MOT...LOC 0136Z 240DEG 22KT 3935 9522 

HAIL...1.00IN
WIND...60MPH
 
$$

Mell

1 follow-up statement

514 
WWUS53 KEAX 160215
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
915 PM CDT THU JUN 15 2017

KSC005-103-160224-
/O.EXP.KEAX.SV.W.0101.000000T0000Z-170616T0215Z/
Leavenworth KS-Atchison KS-
915 PM CDT THU JUN 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LEAVENWORTH AND
SOUTHEASTERN ATCHISON COUNTIES WILL EXPIRE AT 915 PM CDT...
        
The storm which prompted the warning has moved out of the area.
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 100 AM CDT for
northeastern Kansas. A severe thunderstorm watch also remains in
effect until 200 AM CDT for northeastern Kansas...and west central
Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Leavenworth until 9:30 PM CDT.

LAT...LON 3949 9505 3949 9504 3947 9505 3946 9503
      3945 9499 3924 9486 3917 9518 3942 9518
      3942 9525
TIME...MOT...LOC 0214Z 240DEG 22KT 3946 9496 

$$

Mell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 8:29 PM CDT	Special Weather Statement	EAX	Johnson	46 min
Jun 15, 8:58 PM CDT	Severe Thunderstorm Warning	EAX	Leavenworth, Wyandotte	32 min
Jun 15, 9:21 PM CDT	Special Weather Statement	EAX	Johnson	39 min
Jun 15, 9:28 PM CDT	Severe Thunderstorm Warning	EAX	Wyandotte	32 min
Jun 16, 3:25 AM CDT	Heat Advisory	EAX	Atchison, Johnson, Leavenworth, Linn, Miami, Wyandotte	37 hr

Nearby

Severe Thunderstorm Warnings in Kansas, 2017 Every severe thunderstorm warning in 2017

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.