Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

April 29, 2012Greene County, Missouri

NWS Springfield, MO issued this special weather statement at Apr 29, 2012, 8:38 AM CDT for Greene 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: Apr 29, 2012, 8:38 AM CDT (13:38 UTC)
Expired: Apr 29, 2012, 9:15 AM CDT
In force: 37 min
Issued by: NWS Springfield, MO

County Greene County, MO

The radar

The Springfield radar (KSGF), 31 km from the middle of the area, began a volume at 13:42 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 12:00Z, 1.6 hours before the alert went out and 82 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: 1600 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 2.9

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 Apr 29, 7:22 AM CDT, 1 hour 16 minutes earlier.

Area forecast discussion, Apr 29, 7:22 AM CDT, 1 hour 16 minutes before

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Hazardous weather outlook, Apr 29, 6:48 AM CDT, 1 hour 50 minutes before

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In the hours before

Local storm report, Apr 29, 5:39 AM CDT, 2 hours 59 minutes before

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Local storm report, Apr 29, 6:53 AM CDT, 1 hour 45 minutes before

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Local storm report, Apr 29, 7:09 AM CDT, 1 hour 29 minutes before

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Special weather statement, Apr 29, 7:20 AM CDT, 1 hour 18 minutes before

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Special weather statement, Apr 29, 7:26 AM CDT, 1 hour 12 minutes before

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Special weather statement, Apr 29, 8:38 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
Apr 29, 4:18 AM CDT	Dense Fog Advisory	SGF	Camden, Dallas, Laclede, Maries, Miller, Morgan and 2 more	6 hr
Apr 29, 4:59 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	46 min
Apr 29, 5:08 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade, Hickory, Polk	52 min
Apr 29, 5:25 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, St. Clair, Vernon	50 min
Apr 29, 5:43 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory	32 min
Apr 29, 5:58 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade	62 min
Apr 29, 6:35 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory	40 min
Apr 29, 6:47 AM CDT	Severe Thunderstorm Warning	SGF	Polk	27 min
Apr 29, 7:20 AM CDT	Special Weather Statement	SGF	Dade	40 min
Apr 29, 7:26 AM CDT	Special Weather Statement	SGF	Miller	49 min
Apr 29, 8:14 AM CDT	Areal Flood Advisory	SGF	Barton, Camden, Cedar, Dade, Dallas, Hickory and 1 more	6 hr
Apr 29, 8:33 AM CDT	Flash Flood Warning	SGF	Camden, Dallas, Hickory, Polk	5 hr
Apr 29, 9:07 AM CDT	Special Weather Statement	SGF	Dallas	23 min
Apr 29, 9:32 AM CDT	Special Weather Statement	SGF	Laclede	28 min
Apr 29, 2:53 PM CDT	Flash Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Dade and 15 more	40 hr
Apr 29, 3:55 AM CDT	Special Weather Statement	SGF	Cherokee, Crawford	35 min
Apr 29, 4:07 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee, Crawford	38 min
Apr 29, 6:13 AM CDT	Flash Flood Warning	SGF	Cherokee, Crawford	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.