Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

September 27, 2012Webster County, Missouri

NWS Springfield, MO issued this special weather statement at Sep 27, 2012, 1:39 AM CDT for Webster County, Missouri. It was in force for 51 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: Sep 27, 2012, 1:39 AM CDT (06:39 UTC)
Expired: Sep 27, 2012, 2:30 AM CDT
In force: 51 min
Issued by: NWS Springfield, MO

County Webster County, MO

The radar

The Springfield radar (KSGF), 34 km from the middle of the area, began a volume at 06:42 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 00:00Z, 6.7 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-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: 440 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Sep 27, 12:28 AM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Sep 27, 12:28 AM CDT, 1 hour 11 minutes before

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Hazardous weather outlook, Sep 27, 12:55 AM CDT, 44 minutes before

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In the hours before

Local storm report, Sep 26, 11:19 PM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1119 PM CDT WED SEP 26 2012

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

1116 PM     HAIL             2 SSE OZARK             36.99N 93.19W
09/26/2012  E1.00 INCH       CHRISTIAN          MO   NWS EMPLOYEE

&&

GAGAN

Special weather statement, Sep 26, 11:38 PM CDT, 2 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1138 PM CDT WED SEP 26 2012

MOZ097-106-270530-
HOWELL MO-OREGON MO-
1138 PM CDT WED SEP 26 2012

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL HOWELL AND
SOUTHWESTERN OREGON COUNTIES UNTIL 1230 AM CDT...

AT 1133 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 4 MILES NORTHWEST OF BRANDSVILLE...OR 6 MILES
SOUTHEAST OF WEST PLAINS...MOVING EAST AT 20 MPH. NICKEL SIZE HAIL...
AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE BRANDSVILLE...KOSHKONONG...ROVER AND
THAYER.

PEOPLE IN EASTERN HOWELL AND SOUTHWESTERN OREGON COUNTIES...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

LAT...LON 3676 9140 3650 9148 3662 9187 3679 9181
TIME...MOT...LOC 0438Z 285DEG 15KT 3668 9173

LINDENBERG

Special weather statement, Sep 27, 12:21 AM CDT, 1 hour 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1221 AM CDT THU SEP 27 2012

MOZ096-105-270545-
DOUGLAS MO-OZARK MO-
1221 AM CDT THU SEP 27 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DOUGLAS AND NORTH CENTRAL
OZARK COUNTIES UNTIL 1245 AM CDT...

AT 1219 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR SQUIRES...OR 7 MILES SOUTHEAST OF AVA...
MOVING EAST AT 20 MPH. NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE BRUSHYKNOB...DRURY...GENTRYVILLE...
ROCKBRIDGE...SQUIRES...VANZANT AND WASOLA.

PEOPLE IN EASTERN DOUGLAS AND NORTHERN OZARK COUNTIES...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

LAT...LON 3701 9230 3675 9226 3675 9269 3694 9267
TIME...MOT...LOC 0521Z 260DEG 18KT 3686 9259

LINDENBERG

Local storm report, Sep 27, 12:40 AM CDT, 59 minutes before

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Special weather statement, Sep 27, 1:37 AM CDT, 2 minutes before

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Special weather statement, Sep 27, 1:39 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 7:32 PM CDT	Special Weather Statement	SGF	Newton	43 min
Sep 26, 7:35 PM CDT	Special Weather Statement	SGF	Stone	40 min
Sep 26, 7:40 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	33 min
Sep 26, 7:49 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	41 min
Sep 26, 8:04 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	26 min
Sep 26, 9:03 PM CDT	Special Weather Statement	SGF	Christian	42 min
Sep 26, 9:07 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Stone, Taney	38 min
Sep 26, 9:41 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Ozark, Taney	29 min
Sep 26, 11:08 PM CDT	Special Weather Statement	SGF	Ozark	52 min
Sep 26, 11:09 PM CDT	Special Weather Statement	SGF	Christian	51 min
Sep 26, 11:19 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Taney	17 min
Sep 26, 11:21 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark, Taney	39 min
Sep 26, 11:38 PM CDT	Special Weather Statement	SGF	Oregon	52 min
Sep 27, 12:21 AM CDT	Special Weather Statement	SGF	Douglas	24 min
Sep 27, 1:37 AM CDT	Special Weather Statement	SGF	Carter	23 min
Sep 27, 2:04 AM CDT	Special Weather Statement	SGF	Howell	41 min
Sep 27, 3:01 AM CDT	Flash Flood Warning	SGF	Douglas	6 hr
Sep 27, 8:53 AM CDT	Areal Flood Warning	SGF	Douglas, Webster, Wright	3 hr
Sep 27, 11:57 AM CDT	Areal Flood Advisory	SGF	Douglas, Ozark, Webster, Wright	6 hr

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.