Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 67, NWS Kansas City, MO

May 30, 2012Leavenworth County, Wyandotte County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at May 30, 2012, 12:59 AM CDT for Leavenworth County, Wyandotte County, Kansas. It was in force for 31 min. 1 report 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 30, 2012, 12:59 AM CDT (05:59 UTC)
Expired
May 30, 2012, 1:30 AM CDT
In force
31 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Leavenworth County, KS, Wyandotte County, KS

The radar

The Pleasant Hill radar (KEAX), 68 km from the middle of the area, began a volume at 06:00 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

TimeReportWhereRemark
May 30, 1:17 AM CDTHAIL 0.753 N Basehor, KS

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

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.0 hours before the alert went out and 70 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2795 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
212 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.

996 
WUUS53 KEAX 300559
SVREAX
KSC103-209-300630-
/O.NEW.KEAX.SV.W.0067.120530T0559Z-120530T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1259 AM CDT WED MAY 30 2012

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL LEAVENWORTH COUNTY IN NORTHEAST KANSAS...
  NORTHWESTERN WYANDOTTE COUNTY IN NORTHEAST KANSAS...

* UNTIL 130 AM CDT

* AT 1256 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  TONGANOXIE...AND MOVING EAST AT 30 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.

* LOCATIONS IMPACTED INCLUDE...
  BASEHOR...FAIRMOUNT...PIPER...MAYWOOD AND WOLCOTT.

THIS WILL IMPACT

 I-435 LOOP FROM MILE MARKERS 14 TO 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3926 9484 3925 9483 3923 9483 3921 9483
      3920 9478 3912 9477 3914 9506 3918 9507
TIME...MOT...LOC 0558Z 264DEG 24KT 3916 9504

HAIL...1.00IN
WIND...<50 MPH

$$

CDB
3 follow-up statements
903 
WWUS53 KEAX 300609
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
109 AM CDT WED MAY 30 2012

KSC103-209-300630-
/O.CON.KEAX.SV.W.0067.000000T0000Z-120530T0630Z/
LEAVENWORTH KS-WYANDOTTE KS-
109 AM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
WYANDOTTE AND EAST CENTRAL LEAVENWORTH COUNTIES UNTIL 130 AM CDT...

AT 104 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BASEHOR...AND
MOVING EAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.

LOCATIONS IMPACTED INCLUDE...
FAIRMOUNT...PIPER...MAYWOOD AND WOLCOTT.

THIS WILL IMPACT

 I-435 LOOP FROM MILE MARKERS 14 TO 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3923 9484 3921 9483 3920 9478 3912 9477
      3914 9499 3919 9499
TIME...MOT...LOC 0609Z 264DEG 24KT 3917 9495

HAIL...1.00IN
WIND...<50 MPH

$$

CDB
060 
WWUS53 KEAX 300617
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
117 AM CDT WED MAY 30 2012

KSC103-300627-
/O.CAN.KEAX.SV.W.0067.000000T0000Z-120530T0630Z/
LEAVENWORTH KS-
117 AM CDT WED MAY 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LEAVENWORTH
COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3920 9490 3920 9489 3920 9479 3920 9478
      3912 9477 3914 9490
TIME...MOT...LOC 0617Z 267DEG 34KT 3917 9482

$$

KSC209-300630-
/O.CON.KEAX.SV.W.0067.000000T0000Z-120530T0630Z/
WYANDOTTE KS-
117 AM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
WYANDOTTE COUNTY UNTIL 130 AM CDT...

AT 113 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BASEHOR...AND
MOVING EAST AT 40 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.

LOCATIONS IMPACTED INCLUDE...
MAYWOOD AND WOLCOTT.

THIS WILL IMPACT

 I-435 LOOP FROM MILE MARKERS 14 TO 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3920 9490 3920 9489 3920 9479 3920 9478
      3912 9477 3914 9490
TIME...MOT...LOC 0617Z 267DEG 34KT 3917 9482

HAIL...1.00IN
WIND...<50 MPH

$$

CDB
047 
WWUS53 KEAX 300625
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
125 AM CDT WED MAY 30 2012

KSC209-300635-
/O.EXP.KEAX.SV.W.0067.000000T0000Z-120530T0630Z/
WYANDOTTE KS-
125 AM CDT WED MAY 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WYANDOTTE COUNTY
WILL EXPIRE AT 130 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3920 9490 3920 9489 3920 9479 3920 9478
      3912 9477 3914 9490
TIME...MOT...LOC 0625Z 267DEG 34KT 3917 9472

$$

CDB

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 12:52 AM CDTSpecial Weather StatementEAXLeavenworth23 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2012Every severe thunderstorm warning in 2012

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.