Alert archive / Kansas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 105, NWS Kansas City, MO

May 10, 2014Atchison County, Leavenworth County, Kansas; Platte County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 10, 2014, 6:29 PM CDT for Atchison County, Leavenworth County, Kansas; Platte County, Missouri. It was in force for 61 min. 4 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: May 10, 2014, 6:29 PM CDT (23:29 UTC)
Expired: May 10, 2014, 7:30 PM CDT
In force: 61 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Atchison County, KS, Leavenworth County, KS, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 102 km from the middle of the area, began a volume at 23:29 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
May 10, 7:15 PM CDT	TSTM WND GST 70	4 Se Cummings, KS	REPORT PASSED ON TO LAW ENFORCEMENT BY A STORM SPOTTER.
May 10, 7:22 PM CDT	TSTM WND GST 65	4 W Leavenworth, KS	BLOWN TRANSFORMER.
May 10, 7:22 PM CDT	HAIL 0.88	4 W Leavenworth, KS
May 10, 7:30 PM CDT	TSTM WND DMG	Leavenworth, KS	LARGE TREE DOWN NEAR 10TH AND SPRUCE CITY.

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 3 storm reports to this severe thunderstorm warning; the first came 46 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
May 10, 2:26 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 11.5 hours before the alert went out and 65 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1969 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

435 
WUUS53 KEAX 102329
SVREAX
KSC005-103-MOC165-110030-
/O.NEW.KEAX.SV.W.0105.140510T2329Z-140511T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
629 PM CDT SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ATCHISON COUNTY IN NORTHEAST KANSAS...
  NORTHERN LEAVENWORTH COUNTY IN NORTHEAST KANSAS...
  WESTERN PLATTE COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 730 PM CDT

* AT 624 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PERRY...AND
  MOVING NORTHEAST AT 45 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT
           WIND DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  TONGANOXIE...LANSING...LEAVENWORTH...WESTON...PLATTE CITY...
  EASTON...TRACY...JARBALO...CUMMINGS...FARMINGTON...POTTER...
  LOWEMONT...STILLINGS...FARLEY...FORT LEAVENWORTH...EAST
  LEAVENWORTH...BEAN LAKE...BEVERLY AND IATAN.

THIS WILL IMPACT

 I-29 BETWEEN MILE MARKERS 19 AND 23.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3956 9529 3954 9511 3953 9510 3953 9483
      3932 9475 3904 9519 3941 9519 3942 9541
TIME...MOT...LOC 2329Z 227DEG 41KT 3912 9541

HAIL...1.75IN
WIND...60MPH

$$

BLAIR

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 May 10, 3:32 PM CDT, 2 hours 57 minutes earlier.

Area forecast discussion, May 10, 3:32 PM CDT, 2 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
332 PM CDT Sat May 10 2014

.DISCUSSION...
Issued at 331 PM CDT SAT MAY 10 2014

Primary concern in the next several days will be severe storm
chances across the area. Ongoing convection will expand eastward
this afternoon and this evening, with additional redevelopment
possible in far eastern Kansas by early evening. MUCAPE in the
3000-4000 J/kg range and bulk shear around 50 kts will support
supercellular structures and very large hail. Storm bases are
currently around 5-6 kft, possibly also supporting damaging winds
but decreasing the tornado threat. A warm front currently stretching
southeast from Maryville through Marshall, MO will continue to lift
northeast, and may serve as the only focus for isolated tornado
potential this afternoon.

Storms will begin to weaken after dark as surface-based instability
decreases in the warm sector, and the warm front should lift into
IA. Any ongoing storms will begin to lift back to the north as the
low-level jet increases tonight, and could strengthen slightly
towards daybreak, but are not expected to become severe.

For Sunday, most daytime severe activity should focus along the warm
front in southern Iowa, far southeast Nebraska, and possibly
portions of northeast Kansas. These storms will very likely be
severe along the warm front, but should stay mainly north of the CWA
until the boundary starts pushing southeastward after 00z. The main
hazards should be damaging winds and perhaps some severe hail as the
storms make their southeastward push later in the evening, and the
most likely period for severe weather on Sunday for the majority of
the CWA should be between 8 PM - 2 AM along the cold frontal
boundary.

The boundary may still linger in the far southeastern CWA when it
re-fires on Monday afternoon, but the period for any strong to
severe storms will be rather brief. Afterward, a few post-frontal
showers may linger across central MO, but much quieter and cooler
conditions are expected.

Little to no change to the extended forecast period. The main story
for most of next week will be cooler temperatures and a few small
chances for light rain showers.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday Afternoon)
Issued at 1233 PM CDT SAT MAY 10 2014

Isolated thunderstorms are expected to develop across the region this
afternoon, and will spread eastward during the evening. Some of these
storms could be severe. Additional, weaker thunderstorms are expected
from the overnight hours through Sunday, and should focus mainly in
northeast KS and far northwest MO through Sunday afternoon. In areas
not impacted by thunderstorms, ceilings should stay mainly VFR and
winds will be breezy out of the south.

&&

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

DISCUSSION...Laflin
AVIATION...Laflin

Hazardous weather outlook, May 10, 12:20 PM CDT, 6 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1220 PM CDT SAT MAY 10 2014

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-111730-
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-
1220 PM CDT SAT MAY 10 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS THE POTENTIAL FOR SEVERE WEATHER THIS AFTERNOON AND
EVENING. STORMS ARE EXPECTED TO DEVELOP ALONG A LINE FROM SOUTHEAST
KANSAS THROUGH NORTHWEST MISSOURI IN THE EARLY TO MID- AFTERNOON HOURS.
ADDITIONAL ISOLATED STORMS WILL DEVELOP ACROSS MISSOURI. THESE STORMS
WILL HAVE THE POTENTIAL TO PRODUCE VERY LARGE HAIL...SOME DAMAGING
WINDS...AND PERHAPS AN ISOLATED TORNADO.

ANOTHER ROUND OF THUNDERSTORMS IS EXPECTED TO MOVE INTO NORTHEASTERN
KANSAS AND NORTHWESTERN MISSOURI AFTER MIDNIGHT AND MAY CONTINUE INTO
SUNDAY MORNING WITH THE POTENTIAL TO PRODUCE LARGE HAIL.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.CRH.NOAA.GOV/IMAGES/FXC/EAX/EM1/EAX-EMBRIEFING1.PDF

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

 SEVERE WEATHER WILL BE POSSIBLE SUNDAY NIGHT ACROSS THE ENTIRE
 OUTLOOK AREA. THE MAIN HAZARDS WITH THESE STORMS WILL BE DAMAGING
 WINDS AND LARGE HAIL.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.CRH.NOAA.GOV/IMAGES/FXC/EAX/EM1/EAX-EMBRIEFING1.PDF

In the hours before

Local storm report, May 10, 5:52 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
552 PM CDT SAT MAY 10 2014

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

0551 PM     HAIL             1 S RICHMOND            39.26N 93.97W
05/10/2014  E1.75 INCH       RAY                MO   PUBLIC

&&

PMURRAY

Local storm report, May 10, 5:55 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
555 PM CDT SAT MAY 10 2014

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

0435 PM     HAIL             1 N GLADSTONE           39.22N 94.56W
05/10/2014  E2.00 INCH       CLAY               MO   PUBLIC

            REPORTED VIA SOCIAL MEDIA. DELAYED REPORT.

&&

PMURRAY

Local storm report, May 10, 6:00 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
600 PM CDT SAT MAY 10 2014

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

0555 PM     HAIL             2 E LAREDO              40.03N 93.41W
05/10/2014  E1.75 INCH       GRUNDY             MO   PUBLIC

&&

LAFLIN

Local storm report, May 10, 6:01 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
601 PM CDT SAT MAY 10 2014

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

0559 PM     HAIL             3 S BROWNING            39.99N 93.16W
05/10/2014  E1.75 INCH       LINN               MO   PUBLIC

            BREAKING WINDOWS

&&

LAFLIN

Local storm report, May 10, 6:09 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
609 PM CDT SAT MAY 10 2014

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

0606 PM     TORNADO          2 N LEXINGTON           39.21N 93.87W
05/10/2014                   RAY                MO   STORM CHASER

            CONFIRMED BY STORM CHASER

&&

Local storm report, May 10, 6:27 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
627 PM CDT SAT MAY 10 2014

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

0627 PM     HAIL             TRENTON                 40.08N 93.62W
05/10/2014  E0.75 INCH       GRUNDY             MO   EMERGENCY MNGR

&&

PMURRAY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 4:11 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Doniphan	49 min
May 10, 4:14 PM CDT	Severe Thunderstorm Warning	EAX	Wyandotte	46 min
May 10, 4:50 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	40 min
May 10, 5:28 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	47 min
May 10, 2:38 PM CDT	Special Weather Statement	EAX	Nodaway	52 min
May 10, 2:43 PM CDT	Severe Thunderstorm Warning	EAX	Holt, Nodaway	47 min
May 10, 3:18 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway, Worth	42 min
May 10, 3:54 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt, Nodaway	51 min
May 10, 3:57 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Harrison	48 min
May 10, 4:20 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Clinton	40 min
May 10, 4:33 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway	57 min
May 10, 4:40 PM CDT	Severe Thunderstorm Warning	EAX	Daviess, Grundy, Harrison, Mercer	50 min
May 10, 4:56 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson, Lafayette, Ray	49 min
May 10, 5:15 PM CDT	Tornado Warning	EAX	Clay, Jackson, Ray	30 min
May 10, 5:22 PM CDT	Severe Thunderstorm Warning	EAX	DeKalb, Gentry	53 min
May 10, 5:25 PM CDT	Severe Thunderstorm Warning	EAX	Grundy, Linn, Livingston, Sullivan	50 min
May 10, 5:37 PM CDT	Severe Thunderstorm Warning	EAX	Daviess, Grundy, Livingston	53 min
May 10, 5:42 PM CDT	Tornado Warning	EAX	Lafayette, Ray	33 min
May 10, 5:58 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon, Sullivan	47 min
May 10, 6:02 PM CDT	Tornado Warning	EAX	Carroll, Lafayette, Ray	28 min
May 10, 6:10 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Livingston	50 min
May 10, 6:27 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Lafayette, Saline	48 min
May 10, 6:37 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon	53 min
May 10, 6:59 PM CDT	Tornado Warning	EAX	Macon	16 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2014 Severe Thunderstorm Warnings in Missouri, 2014 Every severe thunderstorm warning in 2014

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.