Alert archive / Missouri / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 147, NWS Springfield, MO

May 9, 2023Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 9, 2023, 4:57 AM CDT for Vernon County, Missouri. It was in force for 48 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 9, 2023, 4:57 AM CDT (09:57 UTC)
Expired: May 9, 2023, 5:45 AM CDT
In force: 48 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 107 km from the middle of the area, began a volume at 09:59 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, 10.0 hours before the alert went out and 116 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: 1408 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1732 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.5

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 9, 3:48 AM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, May 9, 3:48 AM CDT, 1 hour 9 minutes before

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Hazardous weather outlook, May 9, 2:53 AM CDT, 2 hours 4 minutes before

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In the hours before

Special weather statement, May 9, 12:00 AM CDT, 4 hours 57 minutes before

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Local storm report, May 9, 1:50 AM CDT, 3 hours 7 minutes before

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Local storm report, May 9, 2:39 AM CDT, 2 hours 18 minutes before

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Special weather statement, May 9, 2:50 AM CDT, 2 hours 7 minutes before

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Local storm report, May 9, 3:57 AM CDT, 1 hour before

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Local storm report, May 9, 4:03 AM CDT, 54 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 8, 7:15 PM CDT	Flash Flood Warning	SGF	Camden, Miller, Pulaski	4 hr
May 8, 7:25 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	65 min
May 8, 7:31 PM CDT	Severe Thunderstorm Warning	SGF	Dent	14 min
May 8, 7:44 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	46 min
May 8, 7:46 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Pulaski	14 min
May 8, 8:00 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	30 min
May 8, 8:23 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	37 min
May 8, 9:00 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Vernon	45 min
May 8, 9:20 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Oregon, Shannon, Texas	40 min
May 8, 9:45 PM CDT	Special Weather Statement	SGF	Barton	30 min
May 8, 10:00 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon	31 min
May 8, 10:18 PM CDT	Special Weather Statement	SGF	Barry	27 min
May 8, 10:36 PM CDT	Special Weather Statement	SGF	Oregon	24 min
May 8, 10:45 PM CDT	Special Weather Statement	SGF	Barry	45 min
May 8, 10:53 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald	37 min
May 9, 12:00 AM CDT	Special Weather Statement	SGF	Stone	30 min
May 9, 4:16 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	44 min
May 9, 5:50 AM CDT	Special Weather Statement	SGF	St. Clair	40 min
May 9, 2:13 PM CDT	Special Weather Statement	SGF	Greene	32 min
May 9, 2:27 PM CDT	Severe Thunderstorm Warning	SGF	Greene	48 min
May 9, 3:05 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Polk	40 min
May 9, 3:33 PM CDT	Severe Thunderstorm Warning	SGF	Polk	42 min
May 9, 3:58 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Hickory, Polk	47 min
May 9, 4:38 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory	37 min
May 9, 4:50 PM CDT	Special Weather Statement	SGF	Cedar	25 min
May 9, 4:51 PM CDT	Special Weather Statement	SGF	Cedar	24 min
May 9, 4:56 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Vernon	49 min
May 9, 5:28 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair, Vernon	47 min
May 9, 5:36 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	39 min
May 9, 5:59 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	61 min
May 9, 6:46 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, St. Clair, Vernon	44 min
May 9, 6:51 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Jasper, Lawrence, Newton	39 min
May 9, 6:59 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	16 min
May 9, 2:50 AM CDT	Special Weather Statement	SGF	Crawford	25 min
May 9, 3:03 AM CDT	Severe Thunderstorm Warning	SGF	Crawford	42 min
May 9, 3:27 AM CDT	Flash Flood Warning	SGF	Crawford	4 hr
May 9, 5:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Bourbon, Crawford	57 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2023 Every severe thunderstorm warning in 2023

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.