Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

April 15, 2012Benton County, Missouri

NWS Springfield, MO issued this special weather statement at Apr 15, 2012, 8:45 AM CDT for Benton County, Missouri. It was in force for 45 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: Apr 15, 2012, 8:45 AM CDT (13:45 UTC)
Expired: Apr 15, 2012, 9:30 AM CDT
In force: 45 min
Issued by: NWS Springfield, MO

County Benton County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 13:47 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

Springfield, MO (KSGF), launched 12:00Z, 1.8 hours before the alert went out and 161 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: 31 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 855 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 381 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 Springfield, MO wrote its last area forecast discussion before this special weather statement went out at Apr 15, 6:11 AM CDT, 2 hours 34 minutes earlier.

Area forecast discussion, Apr 15, 6:11 AM CDT, 2 hours 34 minutes before

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Hazardous weather outlook, Apr 15, 6:47 AM CDT, 1 hour 58 minutes before

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In the hours before

Special weather statement, Apr 15, 5:30 AM CDT, 3 hours 15 minutes before

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Local storm report, Apr 15, 7:03 AM CDT, 1 hour 42 minutes before

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Special weather statement, Apr 15, 8:20 AM CDT, 25 minutes before

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Local storm report, Apr 15, 8:21 AM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
821 AM CDT SUN APR 15 2012

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

0714 AM     TSTM WND DMG     WEIR                    37.31N 94.77W
04/15/2012                   CHEROKEE           KS   EMERGENCY MNGR

            8 INCH TREE SNAPPED...ROOF OFF OF BUILDING

&&

KARDELL

Special weather statement, Apr 15, 8:45 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
845 AM CDT SUN APR 15 2012

MOZ055-068-151430-
BENTON MO-HICKORY MO-
845 AM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR BENTON AND NORTHERN HICKORY
COUNTIES UNTIL 930 AM CDT...

AT 841 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 10 MILES WEST OF QUINCY...OR 19 MILES SOUTHWEST
OF WARSAW...MOVING NORTHEAST AT 50 MPH. WINDS AROUND 50 MPH AND HAIL
UP TO THE SIZE OF PENNIES ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE COLE CAMP...LINCOLN AND WARSAW.

OTHER LOCATIONS IN THIS SIGNIFICANT WEATHER ADVISORY INCLUDE LAKE OF
THE OZARKS AND TRUMAN LAKE.

THUNDERSTORMS POSE A VARIETY OF HAZARDS TO THOSE OUTDOORS...INCLUDING
HAIL... STRONG WINDS THAT CAN CREATE DANGEROUS FLYING PROJECTILES AND
DEBRIS...AS WELL AS DEADLY CLOUD TO GROUND LIGHTNING. IF YOU ARE IN
THE PATH OF THIS STORM...MOVE INDOORS TO A STURDY SHELTER
IMMEDIATELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM CDT
SUNDAY MORNING FOR SOUTHEAST KANSAS AND SOUTHWEST MISSOURI.

LAT...LON 3853 9307 3819 9308 3819 9306 3815 9306
      3799 9351 3820 9349 3821 9352 3832 9352
      3851 9336
TIME...MOT...LOC 1344Z 235DEG 49KT 3809 9360

FOSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 12:54 AM CDT	Areal Flood Advisory	SGF	Benton, Camden, Dallas, Laclede, Maries, Miller and 4 more	12 hr
Apr 15, 4:13 AM CDT	Wind Advisory	SGF	Barton, Benton, Camden, Cedar, Dade, Dallas and 11 more	14 hr
Apr 15, 7:21 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper	39 min
Apr 15, 7:42 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	36 min
Apr 15, 8:20 AM CDT	Special Weather Statement	SGF	St. Clair	25 min
Apr 15, 8:55 AM CDT	Flash Flood Warning	SGF	Barton, Jasper, Newton	6 hr
Apr 15, 9:59 AM CDT	Special Weather Statement	SGF	Lawrence	31 min
Apr 15, 11:22 AM CDT	Special Weather Statement	SGF	Camden, Dallas	38 min
Apr 15, 12:39 PM CDT	Special Weather Statement	SGF	Jasper	36 min
Apr 15, 12:41 PM CDT	Special Weather Statement	SGF	Cedar	34 min
Apr 15, 12:50 PM CDT	Special Weather Statement	SGF	St. Clair	25 min
Apr 15, 12:52 PM CDT	Special Weather Statement	SGF	Cedar, Dade	38 min
Apr 15, 12:54 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	21 min
Apr 15, 1:14 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	29 min
Apr 15, 1:47 PM CDT	Special Weather Statement	SGF	Dallas, Greene	28 min
Apr 15, 1:49 PM CDT	Severe Thunderstorm Warning	SGF	Barry	14 min
Apr 15, 3:18 PM CDT	Areal Flood Warning	SGF	Dallas, Polk	2 hr
Apr 15, 3:26 PM CDT	Flash Flood Warning	SGF	Christian, Greene, Stone, Taney, Webster	2 hr
Apr 15, 3:58 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede	26 min
Apr 15, 4:11 PM CDT	Severe Thunderstorm Warning	SGF	Miller, Morgan	22 min
Apr 15, 4:55 PM CDT	Areal Flood Advisory	SGF	Douglas, Ozark, Webster, Wright	6 hr
Apr 15, 5:04 PM CDT	Flash Flood Warning	SGF	Camden, Laclede, Maries, Miller, Phelps, Pulaski	6 hr
Apr 15, 5:30 AM CDT	Special Weather Statement	SGF	Bourbon	60 min
Apr 15, 6:41 AM CDT	Severe Thunderstorm Warning	SGF	Bourbon, Cherokee, Crawford	49 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.