Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Kansas City, MO

June 16, 2012Johnson County, Missouri

NWS Kansas City, MO issued this special weather statement at Jun 16, 2012, 6:08 PM CDT for Johnson County, Missouri. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 16, 2012, 6:08 PM CDT (23:08 UTC)
Expired: Jun 16, 2012, 6:45 PM CDT
In force: 37 min
Issued by: NWS Kansas City, MO

County Johnson County, MO

The radar

The Pleasant Hill radar (KEAX), 47 km from the middle of the area, began a volume at 23:12 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.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.1 hours before the alert went out and 167 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: 1225 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: -18 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 16, 6:04 PM CDT, 4 minutes earlier.

Area forecast discussion, Jun 16, 6:04 PM CDT, 4 minutes before

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Hazardous weather outlook, Jun 16, 12:43 PM CDT, 5 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1243 PM CDT SAT JUN 16 2012

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-171100-
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-
1243 PM CDT SAT JUN 16 2012

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

 THUNDERSTORMS...SOME SEVERE...WILL CONTINUE TO DEVELOP ACROSS
 NORTHWEST MISSOURI THIS AFTERNOON...GRADUALLY EXPANDING SOUTH AND
 EAST ALONG AN APPROACHING COLD FRONT. STRONG INSTABILITY AND
 ABUNDANT MOISTURE WILL FAVOR BOTH LARGE HAIL AND DAMAGING DOWNBURST
 WINDS. THESE STORMS MAY EVENTUALLY ORGANIZE INTO A LINE WITH A
 GREATER THREAT FOR WIND DAMAGE. VERY HEAVY RAINFALL IS ALSO LIKELY
 WITH THESE STORMS...ALTHOUGH VERY DRY CONDITIONS SHOULD LIMIT
 FLOODING POTENTIAL. THIS ACTIVITY MAY PERSIST INTO THE EVENING
 HOURS...BECOMING FOCUSED ACROSS EASTERN AND SOUTHERN PORTIONS OF
 THE OUTLOOK AREA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

 A STATIONARY FRONT WILL STALL ACROSS CENTRAL MISSOURI AND WILL
 PROVIDE A FOCUS FOR THUNDERSTORM DEVELOPMENT INTO SUNDAY...BEFORE
 LIFTING ACROSS NORTHEAST MISSOURI AS A WARM FRONT SUNDAY EVENING.
 ISOLATED LARGE HAIL AND HEAVY RAINFALL WILL BE THE MAIN THREATS
 BEFORE THIS ACTIVITY EXITS THE AREA SUNDAY EVENING.

 UNSEASONABLE HOT TEMPERATURES WILL OVERSPREAD THE AREA BY MONDAY
 WITH AFTERNOON READINGS IN THE LOWER TO MIDDLE 90S EXPECTED.
 DEWPOINTS IN THE UPPER 60S WILL RESULT IN HEAT INDEX VALUES IN THE
 LOWER 100S ACROSS NORTHWEST MISSOURI BETWEEN 2 AND 6 PM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ACROSS THE REGION THIS AFTERNOON
AND TONIGHT.

BOOKBINDER

In the hours before

Local storm report, Jun 16, 4:05 PM CDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
405 PM CDT SAT JUN 16 2012

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

0358 PM     TSTM WND GST     BEVIER                  39.75N 92.56W
06/16/2012  E55.00 MPH       MACON              MO   TRAINED SPOTTER

            WINDS ESTIMATED AROUND 55 MPH WITH SMALL BRANCHES DOWN
            AND PEA SIZE HAIL

&&

CBOWMAN

Local storm report, Jun 16, 4:07 PM CDT, 2 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
407 PM CDT SAT JUN 16 2012

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

0401 PM     HAIL             2 NE CHILLICOTHE        39.81N 93.53W
06/16/2012  E1.75 INCH       LIVINGSTON         MO   AMATEUR RADIO

&&

DUX

Special weather statement, Jun 16, 4:26 PM CDT, 1 hour 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
426 PM CDT SAT JUN 16 2012

MOZ033-040-162215-
HOWARD MO-RANDOLPH MO-
426 PM CDT SAT JUN 16 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RANDOLPH AND HOWARD
COUNTIES UNTIL 515 PM CDT...

AT 423 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GLASGOW TO 7 MILES
WEST OF NEW FRANKLIN...AND MOVING NORTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS.

LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
  FAYETTE.

THESE STORMS MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV
STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3910 9251 3899 9287 3902 9288 3901 9289
      3902 9291 3918 9289 3920 9286 3921 9285
      3933 9242
TIME...MOT...LOC 2126Z 233DEG 26KT 3922 9279 3906 9283

BOOKBINDER

Special weather statement, Jun 16, 5:01 PM CDT, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
501 PM CDT SAT JUN 16 2012

KSZ057-105-MOZ037-038-043-044-162245-
CASS MO-JACKSON MO-JOHNSON MO-JOHNSON KS-LAFAYETTE MO-MIAMI KS-
501 PM CDT SAT JUN 16 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN JOHNSON AND
NORTHEASTERN MIAMI COUNTIES IN EAST CENTRAL KANSAS...AND LAFAYETTE...
NORTHWESTERN JOHNSON...SOUTHEASTERN JACKSON AND NORTHERN CASS
COUNTIES IN WEST CENTRAL MISSOURI UNTIL 545 PM CDT...

AT 455 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A BROKEN LINE OF DEVELOPING THUNDERSTORMS EXTENDING FROM LEXINGTON
BACK ACROSS LEE'S SUMMIT TO NEAR BELTON...AND MOVING EAST AT 25 MPH.

FOR THOSE THAT END UP UNDER THESE STORMS...HAIL UP TO ONE-HALF INCH
IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS. SOME FURTHER INTENSIFICATION IS POSSIBLE AS THEY MOVE EAST
LATE THIS AFTERNOON.

LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
  LEE'S SUMMIT...OAK GROVE...LAKE LOTAWANA...
  RAYMORE...GREENWOOD...PECULIAR...  ODESSA...PLEASANT
  HILL...HIGGINSVILLE...LAKE WINNEBAGO...MAYVIEW...
  LONE JACK...WAVERLY...TARSNEY LAKES...BATES CITY...DOVER...
  LAKE LAFAYETTE AND STRASBURG.

LAT...LON 3867 9489 3915 9398 3914 9396 3918 9392
      3922 9349 3871 9418
TIME...MOT...LOC 2200Z 263DEG 22KT 3916 9386 3875 9463

BOOKBINDER

Local storm report, Jun 16, 5:30 PM CDT, 38 minutes before

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Special weather statement, Jun 16, 6:08 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 12:03 PM CDT	Special Weather Statement	EAX	Holt	27 min
Jun 16, 12:15 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt	30 min
Jun 16, 12:45 PM CDT	Special Weather Statement	EAX	Atchison, Nodaway	30 min
Jun 16, 1:54 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	36 min
Jun 16, 2:00 PM CDT	Special Weather Statement	EAX	Mercer	45 min
Jun 16, 2:13 PM CDT	Severe Thunderstorm Warning	EAX	Worth	32 min
Jun 16, 2:14 PM CDT	Severe Thunderstorm Warning	EAX	Grundy, Mercer	31 min
Jun 16, 2:40 PM CDT	Severe Thunderstorm Warning	EAX	Mercer, Putnam	35 min
Jun 16, 3:10 PM CDT	Severe Thunderstorm Warning	EAX	Putnam	35 min
Jun 16, 3:23 PM CDT	Special Weather Statement	EAX	Mercer	52 min
Jun 16, 3:47 PM CDT	Special Weather Statement	EAX	Adair, Macon, Putnam	43 min
Jun 16, 3:56 PM CDT	Severe Thunderstorm Warning	EAX	Linn, Livingston	34 min
Jun 16, 4:05 PM CDT	Severe Thunderstorm Warning	EAX	Macon	27 min
Jun 16, 4:11 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Howard, Randolph	34 min
Jun 16, 4:26 PM CDT	Special Weather Statement	EAX	Howard	49 min
Jun 16, 4:38 PM CDT	Severe Thunderstorm Warning	EAX	Howard	37 min
Jun 16, 5:01 PM CDT	Special Weather Statement	EAX	Lafayette	44 min

Nearby

Special Weather Statements in Missouri, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.