Alert archive / Missouri / Special Weather Statements in 2011

Special Weather Statement, NWS Kansas City, MO

July 3, 2011Macon County, Missouri

NWS Kansas City, MO issued this special weather statement at Jul 3, 2011, 7:37 AM CDT for Macon County, Missouri. It was in force for 38 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
Jul 3, 2011, 7:37 AM CDT (12:37 UTC)
Expired
Jul 3, 2011, 8:15 AM CDT
In force
38 min
Issued by
NWS Kansas City, MO

County Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 185 km from the middle of the area, began a volume at 12:39 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, 0.6 hours before the alert went out and 279 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 12:00Z on 2011-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1810 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2011-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 square meters per square second.1939Sfc1 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
1810 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
1030 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
160 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 Jul 3, 6:20 AM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 3, 6:20 AM CDT, 1 hour 17 minutes before
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Hazardous weather outlook, Jul 3, 5:03 AM CDT, 2 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
503 AM CDT SUN JUL 3 2011

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-041015-
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-
503 AM CDT SUN JUL 3 2011

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE OUTLOOK AREA
TODAY AND TONIGHT...WITH THE HIGHEST CONCENTRATION OF STORMS
GENERALLY NORTH OF INTERSTATE 70. A FEW OF THE STRONGER STORMS MAY BE
CAPABLE OF BRIEF GUSTY WINDS AND MARGINALLY SEVERE HAIL...AS WELL AS
LOCALLY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE EARLY
MONDAY...MAINLY ACROSS NORTH CENTRAL AND NORTHEAST MISSOURI. SEVERE
THUNDERSTORMS ARE NOT EXPECTED WITH THIS ACTIVITY.

HOT AND HUMID CONDITIONS ARE EXPECTED TO RETURN TO THE REGION ON
TUESDAY. HEAT INDEX VALUES COULD RISE TO NEAR 105 DEGREES TUESDAY
AFTERNOON...ESPECIALLY ACROSS EASTERN KANSAS AND WESTERN AND
NORTHWESTERN MISSOURI.

THUNDERSTORM CHANCES WILL INCREASE TUESDAY NIGHT AND WEDNESDAY AS A
COLD FRONT DROPS INTO THE REGION. SEVERE THUNDERSTORM CHANCES APPEAR
LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT.

HAWBLITZEL

In the hours before

Special weather statement, Jul 3, 4:31 AM CDT, 3 hours 6 minutes before
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Special weather statement, Jul 3, 4:44 AM CDT, 2 hours 53 minutes before
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Special weather statement, Jul 3, 4:58 AM CDT, 2 hours 39 minutes before
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Special weather statement, Jul 3, 5:09 AM CDT, 2 hours 28 minutes before
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Local storm report, Jul 3, 6:54 AM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
654 AM CDT SUN JUL 03 2011

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

1110 PM     HAIL             1 SE LENEXA             38.95N 94.78W
07/02/2011  M1.50 INCH       JOHNSON            KS   NWS EMPLOYEE

            DELAYED REPORT FROM 97TH AND QUIVIRA

&&

21
Special weather statement, Jul 3, 7:37 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
737 AM CDT SUN JUL 3 2011

MOZ025-031315-
MACON MO-
737 AM CDT SUN JUL 3 2011

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MACON COUNTY UNTIL 815 AM
CDT...

AT 735 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR CALLAO...OR 11 MILES WEST OF MACON...MOVING
NORTHEAST AT 5 MPH.

HAIL UP TO THE SIZE OF NICKELS IS EXPECTED WITH THIS STORM...ALONG
WITH HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  ATLANTA.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 3999 9256 3980 9239 3971 9268 3984 9279
TIME...MOT...LOC 1237Z 209DEG 6KT 3979 9267

CDB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:54 PM CDTSpecial Weather StatementEAXBates51 min
Jul 2, 9:52 PM CDTSevere Thunderstorm WarningEAXBates, Cass23 min
Jul 2, 10:20 PM CDTSevere Thunderstorm WarningEAXCass25 min
Jul 2, 10:27 PM CDTAreal Flood AdvisoryEAXBates, Cass4 hr
Jul 3, 12:20 AM CDTSpecial Weather StatementEAXBuchanan25 min
Jul 3, 12:42 AM CDTSpecial Weather StatementEAXBuchanan33 min
Jul 3, 1:09 AM CDTSpecial Weather StatementEAXClinton36 min
Jul 3, 3:59 AM CDTSpecial Weather StatementEAXAtchison31 min
Jul 3, 4:29 AM CDTSpecial Weather StatementEAXAtchison31 min
Jul 3, 4:31 AM CDTSpecial Weather StatementEAXAtchison29 min
Jul 3, 4:44 AM CDTSpecial Weather StatementEAXGentry31 min
Jul 3, 4:58 AM CDTSpecial Weather StatementEAXAtchison32 min
Jul 3, 5:09 AM CDTSpecial Weather StatementEAXHarrison36 min
Jul 3, 5:24 AM CDTAreal Flood AdvisoryEAXAtchison4 hr
Jul 3, 6:41 AM CDTAreal Flood AdvisoryEAXNodaway4 hr
Jul 3, 9:17 AM CDTSpecial Weather StatementEAXRandolph28 min
Jul 3, 10:17 AM CDTSpecial Weather StatementEAXBuchanan43 min
Jul 3, 11:41 AM CDTSpecial Weather StatementEAXChariton49 min
Jul 3, 11:48 AM CDTSevere Thunderstorm WarningEAXCarroll, Chariton, Saline42 min
Jul 3, 1:08 PM CDTSpecial Weather StatementEAXPettis52 min
Jul 3, 1:17 PM CDTSpecial Weather StatementEAXHoward43 min
Jul 3, 1:50 PM CDTSpecial Weather StatementEAXCooper40 min
Jul 2, 11:00 PM CDTSpecial Weather StatementEAXJohnson30 min
Jul 2, 11:06 PM CDTSevere Thunderstorm WarningEAXJohnson24 min

Nearby

Special Weather Statements in Missouri, 2011Every special weather statement in 2011

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.