Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

September 7, 2012Howell County, Missouri

NWS Springfield, MO issued this special weather statement at Sep 7, 2012, 3:28 PM CDT for Howell County, Missouri. It was in force for 32 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 7, 2012, 3:28 PM CDT (20:28 UTC)
Expired: Sep 7, 2012, 4:00 PM CDT
In force: 32 min
Issued by: NWS Springfield, MO

County Howell County, MO

The radar

The Springfield radar (KSGF), 117 km from the middle of the area, began a volume at 20:29 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, 8.5 hours before the alert went out and 148 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: 1095 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 1368 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 256 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.9

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 7, 10:39 AM CDT, 4 hours 49 minutes earlier.

Area forecast discussion, Sep 7, 10:39 AM CDT, 4 hours 49 minutes before

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Hazardous weather outlook, Sep 7, 12:57 PM CDT, 2 hours 31 minutes before

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In the hours before

Local storm report, Sep 7, 2:59 PM CDT, 29 minutes before

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Local storm report, Sep 7, 3:18 PM CDT, 10 minutes before

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Local storm report, Sep 7, 3:19 PM CDT, 9 minutes before

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Local storm report, Sep 7, 3:20 PM CDT, 8 minutes before

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Local storm report, Sep 7, 3:26 PM CDT, 2 minutes before

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Special weather statement, Sep 7, 3:28 PM 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 6, 8:21 PM CDT	Special Weather Statement	SGF	Stone	24 min
Sep 6, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	27 min
Sep 6, 10:15 PM CDT	Special Weather Statement	SGF	Miller	30 min
Sep 6, 10:19 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller	28 min
Sep 7, 2:45 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	45 min
Sep 7, 2:58 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	47 min
Sep 7, 3:23 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, St. Clair, Vernon	52 min
Sep 7, 3:31 PM CDT	Special Weather Statement	SGF	Howell	29 min
Sep 7, 3:36 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	39 min
Sep 7, 3:39 PM CDT	Severe Thunderstorm Warning	SGF	Jasper	66 min
Sep 7, 4:03 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	57 min
Sep 7, 4:05 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Cedar, Dade, Hickory, Jasper, Lawrence and 2 more	55 min
Sep 7, 4:19 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon, Texas	41 min
Sep 7, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Christian, Dade, Greene, Hickory, Jasper and 3 more	55 min
Sep 7, 4:25 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede, Webster, Wright	50 min
Sep 7, 4:37 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	18 min
Sep 7, 4:41 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Lawrence, Stone	49 min
Sep 7, 4:50 PM CDT	Severe Thunderstorm Warning	SGF	Webster	44 min
Sep 7, 4:58 PM CDT	Severe Thunderstorm Warning	SGF	Lawrence	16 min
Sep 7, 5:00 PM CDT	Tornado Warning	SGF	Dallas, Laclede	18 min
Sep 7, 5:10 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede, Webster, Wright	50 min
Sep 7, 5:23 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Stone, Taney	52 min
Sep 7, 5:41 PM CDT	Severe Thunderstorm Warning	SGF	Texas	49 min
Sep 7, 5:52 PM CDT	Tornado Warning	SGF	Texas	22 min
Sep 7, 6:03 PM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	30 min
Sep 7, 6:29 PM CDT	Special Weather Statement	SGF	Dent	31 min
Sep 7, 6:46 PM CDT	Special Weather Statement	SGF	Oregon	29 min
Sep 7, 2:37 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon, Crawford	38 min
Sep 7, 3:18 PM CDT	Severe Thunderstorm Warning	SGF	Cherokee	42 min
Sep 7, 3:59 PM CDT	Severe Thunderstorm Warning	SGF	Cherokee	31 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.