Alert archive / Missouri / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 110, NWS Springfield, MO

May 7, 2009Maries County, Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 7, 2009, 11:50 PM CDT for Maries County, Phelps County, Missouri. It was in force for 55 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: May 7, 2009, 11:50 PM CDT (04:50 UTC)
Expired: May 8, 2009, 12:45 AM CDT
In force: 55 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Maries County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 127 km from the middle of the area, began a volume at 04:51 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 7, 10:17 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.8 hours before the alert went out and 212 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: 684 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1765 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 7.3

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 May 7, 10:59 PM CDT, 51 minutes earlier.

Area forecast discussion, May 7, 10:59 PM CDT, 51 minutes before

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Hazardous weather outlook, May 7, 9:59 PM CDT, 1 hour 51 minutes before

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In the hours before

Special weather statement, May 7, 9:32 PM CDT, 2 hours 18 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
May 7, 10:33 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	57 min
May 8, 5:31 AM CDT	Severe Thunderstorm Warning	SGF	Benton, Morgan	44 min
May 8, 5:49 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	56 min
May 8, 5:52 AM CDT	Severe Thunderstorm Warning	SGF	Morgan	53 min
May 8, 6:14 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	61 min
May 8, 6:16 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper, Newton	59 min
May 8, 6:27 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	63 min
May 8, 6:31 AM CDT	Severe Thunderstorm Warning	SGF	Miller	59 min
May 8, 6:37 AM CDT	Flash Flood Warning	SGF	Benton, Miller, Morgan	6 hr
May 8, 6:41 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Vernon	64 min
May 8, 6:45 AM CDT	Flash Flood Warning	SGF	Barton, Cedar, Hickory, St. Clair, Vernon	6 hr
May 8, 6:54 AM CDT	Severe Thunderstorm Warning	SGF	Benton, Cedar, Dade, Dallas, Greene, Hickory and 3 more	66 min
May 8, 7:03 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Barton, Christian, Dade, Greene, Jasper and 3 more	57 min
May 8, 7:08 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede	67 min
May 8, 7:08 AM CDT	Tornado Warning	SGF	Barton, Vernon	37 min
May 8, 7:20 AM CDT	Tornado Warning	SGF	Barton, Dade, Jasper	24 min
May 8, 7:23 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Morgan	67 min
May 8, 7:35 AM CDT	High Wind Warning	SGF	Barry, Barton, Cedar, Christian, Dade, Dallas and 23 more	4 hr
May 8, 7:47 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Greene, Lawrence, McDonald, Newton and 3 more	58 min
May 8, 7:51 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller, Pulaski	54 min
May 8, 7:52 AM CDT	Flash Flood Warning	SGF	Barry, Camden, Dade, Dallas, Greene, Jasper and 4 more	6 hr
May 8, 7:55 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, Vernon	65 min
May 8, 7:58 AM CDT	Severe Thunderstorm Warning	SGF	Benton, Cedar, Dade, Dallas, Hickory, Polk and 2 more	62 min
May 8, 8:04 AM CDT	Tornado Warning	SGF	Greene	47 min
May 8, 8:14 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	61 min
May 8, 8:14 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Howell, Laclede, Ozark, Taney and 3 more	61 min
May 8, 8:22 AM CDT	Tornado Warning	SGF	Christian	29 min
May 8, 8:24 AM CDT	Tornado Warning	SGF	Taney	28 min
May 8, 8:32 AM CDT	Tornado Warning	SGF	Douglas	43 min
May 8, 8:33 AM CDT	Tornado Warning	SGF	Webster	42 min
May 8, 8:33 AM CDT	Tornado Warning	SGF	Polk	27 min
May 8, 8:39 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede, Miller, Morgan	66 min
May 8, 8:39 AM CDT	Tornado Warning	SGF	Douglas	42 min
May 8, 8:43 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Maries, Phelps, Pulaski	47 min
May 8, 8:45 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene, Webster	60 min
May 8, 8:46 AM CDT	Tornado Warning	SGF	Webster	44 min
May 8, 8:55 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Douglas, Howell, Oregon, Ozark, Shannon and 1 more	65 min
May 8, 8:57 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory, Laclede, Maries, Miller and 4 more	63 min
May 8, 8:58 AM CDT	Tornado Warning	SGF	Camden, Dallas, Laclede	62 min
May 8, 9:02 AM CDT	Flash Flood Warning	SGF	Dent, Laclede, Maries, Phelps, Pulaski, Texas and 2 more	5 hr
May 8, 9:05 AM CDT	River Flood Warning	SGF	Vernon	5 days
May 8, 9:05 AM CDT	River Flood Warning	SGF	Vernon	5 days
May 8, 9:05 AM CDT	River Flood Warning	SGF	Cedar	60 hr
May 8, 9:05 AM CDT	Tornado Warning	SGF	Wright	40 min
May 8, 9:10 AM CDT	Tornado Warning	SGF	Douglas, Howell, Ozark, Texas	65 min
May 8, 9:11 AM CDT	Tornado Warning	SGF	Laclede	49 min
May 8, 9:18 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Laclede, Ozark, Taney, Texas and 2 more	57 min
May 8, 9:33 AM CDT	Tornado Warning	SGF	Texas	42 min
May 8, 9:38 AM CDT	Tornado Warning	SGF	Laclede, Phelps, Pulaski, Texas	52 min
May 8, 9:40 AM CDT	Tornado Warning	SGF	Oregon, Shannon	50 min
May 8, 9:56 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dent, Howell, Maries, Miller, Oregon and 4 more	64 min
May 8, 10:02 AM CDT	Tornado Warning	SGF	Dent	43 min
May 8, 10:42 AM CDT	Tornado Warning	SGF	Dent	21 min
May 8, 12:00 PM CDT	Flash Flood Warning	SGF	Douglas, Howell, Oregon, Shannon	6 hr
May 8, 12:16 PM CDT	River Flood Warning	SGF	Pulaski	20 hr
May 8, 12:57 PM CDT	Areal Flood Warning	SGF	Barry, Barton, Benton, Camden, Cedar, Dade and 20 more	24 hr
May 8, 6:00 PM CDT	Areal Flood Warning	SGF	Douglas, Howell, Oregon, Shannon	18 hr
May 8, 9:05 AM CDT	River Flood Warning	SGF	Bourbon	37 hr
May 8, 9:05 AM CDT	River Flood Warning	SGF	Bourbon	36 hr

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.