Alert archive / Missouri / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 116, NWS Springfield, MO

April 20, 2023Douglas County, Texas County, Wright County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 20, 2023, 3:38 PM CDT for Douglas County, Texas County, Wright County, Missouri. It was in force for 52 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, 3:38 PM CDT (20:38 UTC)
Expired
Apr 20, 2023, 4:30 PM CDT
In force
52 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Douglas County, MO, Texas County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 97 km from the middle of the area, began a volume at 20:37 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.

IssuedProductOfficeLasted
Apr 20, 1:20 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.6 hours before the alert went out and 136 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2023-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 307 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2023-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 525 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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, 1 hour 26 minutes earlier.

Area forecast discussion, Apr 20, 2:12 PM CDT, 1 hour 26 minutes before
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Hazardous weather outlook, Apr 20, 2:38 PM CDT, 1 hour 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, 2:44 PM CDT, 54 minutes before
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Special weather statement, Apr 20, 2:46 PM CDT, 52 minutes before
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Local storm report, Apr 20, 2:53 PM CDT, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
253 PM CDT THU APR 20 2023

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

0244 PM     HAIL             FORDLAND                37.16N 92.94W
04/20/2023  E1.00 INCH       WEBSTER            MO   PUBLIC

            NICKEL TO QUARTER SIZE HAIL IN FORDLAND.

&&

MB
Local storm report, Apr 20, 2:55 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
255 PM CDT THU APR 20 2023

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

0252 PM     HAIL             3 SW WALNUT SHADE       36.70N 93.23W
04/20/2023  E0.50 INCH       TANEY              MO   PUBLIC

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

&&

MB
Local storm report, Apr 20, 3:10 PM CDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
310 PM CDT THU APR 20 2023

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

0309 PM     HAIL             PLATO                   37.50N 92.22W
04/20/2023  E1.00 INCH       TEXAS              MO   AMATEUR RADIO

&&

MB
Special weather statement, Apr 20, 3:31 PM CDT, 7 minutes before
Special Weather Statement
National Weather Service Springfield MO
331 PM CDT Thu Apr 20 2023

MOZ092-096-105-202100-
Douglas MO-Wright MO-Ozark MO-
331 PM CDT Thu Apr 20 2023

...Strong thunderstorms will impact portions of northwestern Ozark,
southwestern Wright and central Douglas Counties through 400 PM
CDT...

At 331 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles south of Seymour to near Ava to 16
miles east of Taneyville. Movement was east at 40 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Strong thunderstorms will be near...
  Ava around 335 PM CDT.
  Mansfield around 350 PM CDT.
  Norwood around 400 PM CDT.

Other locations impacted by these storms include Thornfield, Rome,
Brixey, Noble, Squires, Brushyknob, Wasola, Rockbridge, Gentryville
and Bryant Creek State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
southwestern Missouri.

&&

LAT...LON 3680 9277 3681 9280 3691 9280 3707 9283
      3707 9269 3712 9268 3720 9242 3701 9234
      3673 9236 3670 9276
TIME...MOT...LOC 2031Z 250DEG 35KT 3702 9275 3693 9273 3674 9274

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Schaumann

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 1:04 PM CDTSpecial Weather StatementSGFGreene26 min
Apr 20, 1:13 PM CDTSevere Thunderstorm WarningSGFDallas, Greene, Webster62 min
Apr 20, 1:28 PM CDTSevere Thunderstorm WarningSGFBarry, Christian, Stone, Taney62 min
Apr 20, 1:50 PM CDTSevere Thunderstorm WarningSGFLaclede, Webster, Wright55 min
Apr 20, 2:31 PM CDTSpecial Weather StatementSGFStone29 min
Apr 20, 2:41 PM CDTSevere Thunderstorm WarningSGFLaclede, Pulaski, Texas, Wright49 min
Apr 20, 2:46 PM CDTSpecial Weather StatementSGFWebster29 min
Apr 20, 3:25 PM CDTSevere Thunderstorm WarningSGFDent, Phelps, Texas65 min
Apr 20, 3:31 PM CDTSpecial Weather StatementSGFDouglas29 min
Apr 20, 4:03 PM CDTSevere Thunderstorm WarningSGFOzark, Taney57 min
Apr 20, 4:40 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFOzark65 min
Apr 20, 5:16 PM CDTSpecial Weather StatementSGFTexas29 min
Apr 20, 5:35 PM CDTSevere Thunderstorm WarningSGFHowell40 min
Apr 20, 6:28 PM CDTFlash Flood WarningSGFHowell, Texas72 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2023Every 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.