Alert archive / Missouri / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 114, NWS Springfield, MO

April 20, 20234 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 20, 2023, 2:41 PM CDT for 4 counties in Missouri. It was in force for 49 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 20, 2023, 2:41 PM CDT (19:41 UTC)
Expired: Apr 20, 2023, 3:30 PM CDT
In force: 49 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Laclede County, MO, Pulaski County, MO, Texas County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 101 km from the middle of the area, began a volume at 19:40 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 20, 1:20 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.7 hours before the alert went out and 149 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: 307 J/kg
Mixed-layer CIN: -409 J/kg
Mixed-layer LCL: 1158 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 525 m²/s²
0-3 km storm-relative helicity: 558 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

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 20, 2:12 PM CDT, 29 minutes earlier.

Area forecast discussion, Apr 20, 2:12 PM CDT, 29 minutes before

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Hazardous weather outlook, Apr 20, 2:38 PM CDT, 3 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
238 PM CDT Thu Apr 20 2023

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-211945-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
238 PM CDT Thu Apr 20 2023

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Limited hail risk.
  Limited thunderstorm wind damage risk.
  Significant lightning risk.
  Elevated excessive rainfall risk
  Elevated fire weather risk.

DISCUSSION...

  Showers and thunderstorms will continue to shift east across
  the area this afternoon into the early evening. Strong to severe
  thunderstorms will remain possible with hail to the size of
  golf balls and damaging wind gusts of 60 to 70 mph the main
  severe weather risks.

  In addition, the front is expected to stall out east of the
  area this evening, with the potential of additional heavy rain
  over south central Missouri behind the front that may lead to
  localized areas of flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

  A few scattered showers and a stray thunderstorm may linger
  across south central Missouri into Friday morning.

  Well below average temperatures are expected this weekend, with
  some frost and even a potential freeze expected on Saturday
  night. Additional frost potential Sunday night.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation may be needed later today or tonight for
  south central Missouri.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/dsspacket

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Lindenberg

In the hours before

Local storm report, Apr 20, 1:33 PM CDT, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
133 PM CDT THU APR 20 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     HAIL             SPRINGFIELD             37.20N 93.28W
04/20/2023  E0.75 INCH       GREENE             MO   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

&&

MB

Local storm report, Apr 20, 1:41 PM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
141 PM CDT THU APR 20 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0114 PM     TSTM WND GST     6 SSE WILLARD           37.23N 93.38W
04/20/2023  M62 MPH          GREENE             MO   ASOS

            ASOS STATION KSGF SPRINGFIELD ASOS.

&&

MB

Local storm report, Apr 20, 1:43 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
143 PM CDT THU APR 20 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0141 PM     HAIL             3 WNW GALLOWAY          37.15N 93.29W
04/20/2023  E0.50 INCH       GREENE             MO   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

&&

MB

Local storm report, Apr 20, 1:47 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
147 PM CDT THU APR 20 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0144 PM     HAIL             1 WNW GALLOWAY          37.15N 93.26W
04/20/2023  E0.75 INCH       GREENE             MO   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

&&

MB

Local storm report, Apr 20, 1:53 PM CDT, 48 minutes before

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Special weather statement, Apr 20, 2:31 PM CDT, 10 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 20, 1:04 PM CDT	Special Weather Statement	SGF	Greene	26 min
Apr 20, 1:13 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Webster	62 min
Apr 20, 1:28 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	62 min
Apr 20, 1:50 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Webster, Wright	55 min
Apr 20, 2:31 PM CDT	Special Weather Statement	SGF	Stone	29 min
Apr 20, 2:46 PM CDT	Special Weather Statement	SGF	Webster	29 min
Apr 20, 3:25 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Texas	65 min
Apr 20, 3:31 PM CDT	Special Weather Statement	SGF	Douglas	29 min
Apr 20, 3:38 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Texas, Wright	52 min
Apr 20, 4:03 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	57 min
Apr 20, 4:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Ozark	65 min
Apr 20, 5:16 PM CDT	Special Weather Statement	SGF	Texas	29 min
Apr 20, 5:35 PM CDT	Severe Thunderstorm Warning	SGF	Howell	40 min
Apr 20, 6:28 PM CDT	Flash Flood Warning	SGF	Howell, Texas	72 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.