Alert archive / Missouri / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 301, NWS Springfield, MO

June 30, 2009Douglas County, Ozark County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 30, 2009, 3:55 PM CDT for Douglas County, Ozark County, Missouri. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 30, 2009, 3:55 PM CDT (20:55 UTC)
Expired: Jun 30, 2009, 4:38 PM CDT
In force: 43 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Douglas County, MO, Ozark County, MO

The radar

The Springfield radar (KSGF), 96 km from the middle of the area, began a volume at 20:55 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, 8.9 hours before the alert went out and 119 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: 73 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 2161 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 30, 2:50 PM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, Jun 30, 2:50 PM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, Jun 30, 12:56 PM CDT, 2 hours 59 minutes before

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In the hours before

Local storm report, Jun 30, 2:08 PM CDT, 1 hour 47 minutes before

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Local storm report, Jun 30, 2:10 PM CDT, 1 hour 45 minutes before

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Local storm report, Jun 30, 2:31 PM CDT, 1 hour 24 minutes before

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Special weather statement, Jun 30, 3:51 PM CDT, 4 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
Jun 30, 3:58 AM CDT	Severe Thunderstorm Warning	SGF	Taney	23 min
Jun 30, 5:10 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	26 min
Jun 30, 5:23 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper	36 min
Jun 30, 5:35 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade	19 min
Jun 30, 6:23 AM CDT	Flash Flood Warning	SGF	Jasper, Lawrence	4 hr
Jun 30, 6:35 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Stone	44 min
Jun 30, 7:02 AM CDT	Severe Thunderstorm Warning	SGF	Taney	58 min
Jun 30, 7:07 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Dade, Greene, Lawrence, Stone	34 min
Jun 30, 2:00 PM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	35 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2009 Every severe thunderstorm warning in 2009

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.