Alert archive / Missouri / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 71, NWS Springfield, MO

April 18, 2024Maries County, Phelps County, Pulaski County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 18, 2024, 4:29 PM CDT for Maries County, Phelps County, Pulaski County, Missouri. It was in force for 46 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: Apr 18, 2024, 4:29 PM CDT (21:29 UTC)
Expired: Apr 18, 2024, 5:15 PM CDT
In force: 46 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Maries County, MO, Phelps County, MO, Pulaski County, MO

The radar

The St Louis radar (KLSX), 140 km from the middle of the area, began a volume at 21:28 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
Apr 18, 12:56 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.5 hours before the alert went out and 199 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: 121 J/kg
Mixed-layer CIN: -321 J/kg
Mixed-layer LCL: 1359 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Apr 18, 2:40 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, Apr 18, 2:40 PM CDT, 1 hour 49 minutes before

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Hazardous weather outlook, Apr 18, 2:51 PM CDT, 1 hour 38 minutes before

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In the hours before

Local storm report, Apr 18, 2:07 PM CDT, 2 hours 22 minutes before

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Local storm report, Apr 18, 3:29 PM CDT, 1 hour before

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Local storm report, Apr 18, 3:42 PM CDT, 47 minutes before

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Local storm report, Apr 18, 4:01 PM CDT, 28 minutes before

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Local storm report, Apr 18, 4:12 PM CDT, 17 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 18, 1:29 PM CDT	Severe Thunderstorm Warning	SGF	Benton	61 min
Apr 18, 2:13 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	62 min
Apr 18, 3:02 PM CDT	Severe Thunderstorm Warning	SGF	Miller	43 min
Apr 18, 3:41 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	64 min
Apr 18, 5:01 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	14 min
Apr 18, 5:06 PM CDT	Special Weather Statement	SGF	Morgan	24 min
Apr 18, 5:13 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	47 min
Apr 18, 5:35 PM CDT	Severe Thunderstorm Warning	SGF	Dent	40 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2024 Every severe thunderstorm warning in 2024

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.