Alert archive / Missouri / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 201, NWS Springfield, MO

August 20, 2022Webster County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 20, 2022, 7:20 PM CDT for Webster County, Missouri. It was in force for 25 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: Aug 20, 2022, 7:20 PM CDT (00:20 UTC)
Expired: Aug 20, 2022, 7:45 PM CDT
In force: 25 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Webster County, MO

The radar

The Springfield radar (KSGF), 47 km from the middle of the area, began a volume at 00:22 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, 0.3 hours before the alert went out and 92 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: 1054 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.2

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 Aug 20, 2:21 PM CDT, 4 hours 59 minutes earlier.

Area forecast discussion, Aug 20, 2:21 PM CDT, 4 hours 59 minutes before

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Hazardous weather outlook, Aug 20, 2:58 PM CDT, 4 hours 22 minutes before

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In the hours before

Local storm report, Aug 20, 4:01 PM CDT, 3 hours 19 minutes before

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Local storm report, Aug 20, 4:09 PM CDT, 3 hours 11 minutes before

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Local storm report, Aug 20, 5:09 PM CDT, 2 hours 11 minutes before

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Special weather statement, Aug 20, 6:58 PM CDT, 22 minutes before

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Special weather statement, Aug 20, 6:58 PM CDT, 22 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
Aug 20, 7:01 PM CDT	Severe Thunderstorm Warning	SGF	Shannon, Texas	44 min
Aug 20, 7:09 PM CDT	Special Weather Statement	SGF	Greene	36 min
Aug 20, 7:12 PM CDT	Special Weather Statement	SGF	Jasper	33 min
Aug 20, 7:14 PM CDT	Special Weather Statement	SGF	Webster	46 min
Aug 20, 7:31 PM CDT	Special Weather Statement	SGF	Wright	29 min
Aug 20, 7:42 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	33 min
Aug 20, 7:50 PM CDT	Special Weather Statement	SGF	Wright	25 min
Aug 20, 8:04 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Texas, Wright	27 min
Aug 20, 8:15 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	16 min
Aug 20, 8:17 PM CDT	Special Weather Statement	SGF	Greene	28 min
Aug 20, 8:38 PM CDT	Special Weather Statement	SGF	Laclede	52 min
Aug 20, 8:48 PM CDT	Special Weather Statement	SGF	Dent	42 min
Aug 20, 8:49 PM CDT	Special Weather Statement	SGF	Shannon	26 min
Aug 20, 8:51 PM CDT	Special Weather Statement	SGF	Webster	39 min
Aug 20, 8:53 PM CDT	Severe Thunderstorm Warning	SGF	Dent	12 min
Aug 20, 9:13 PM CDT	Special Weather Statement	SGF	Shannon	47 min
Aug 20, 9:46 PM CDT	Special Weather Statement	SGF	Howell	44 min
Aug 20, 9:59 PM CDT	Severe Thunderstorm Warning	SGF	Howell	19 min
Aug 20, 10:26 PM CDT	Areal Flood Advisory	SGF	Shannon	3 hr
Aug 21, 1:13 AM CDT	Special Weather Statement	SGF	Howell, Oregon	62 min
Aug 21, 1:38 AM CDT	Areal Flood Advisory	SGF	Douglas, Howell	4 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2022 Every severe thunderstorm warning in 2022

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.