Alert archive / Missouri / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 271, NWS Springfield, MO

July 17, 2023Ozark County, Taney County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 17, 2023, 4:46 PM CDT for Ozark County, Taney County, Missouri. It was in force for 59 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
Jul 17, 2023, 4:46 PM CDT (21:46 UTC)
Expired
Jul 17, 2023, 5:45 PM CDT
In force
59 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Ozark County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 87 km from the middle of the area, began a volume at 21:48 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
Jul 17, 1:28 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.8 hours before the alert went out and 98 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 2023-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2138 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 2023-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.193958Sfc1 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
2138 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.2

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 Jul 17, 2:06 PM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 17, 2:06 PM CDT, 2 hours 40 minutes before
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Hazardous weather outlook, Jul 17, 12:17 PM CDT, 4 hours 29 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Springfield MO
1217 PM CDT Mon Jul 17 2023

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-181730-
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-
1217 PM CDT Mon Jul 17 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.
  Elevated lightning risk.
  Limited excessive heat risk.
  Limited excessive rainfall risk

DISCUSSION...

Scattered showers and thunderstorms will develop across the area
this afternoon and evening and move from northwest to southeast.
The strongest storms will be capable of producing large hail to
the size of golf balls and damaging winds up to 70 mph. Frequent
lightning and locally heavy rainfall will also be possible.

Heat index values of 95 to 100 degrees are likely this afternoon.

While uncertainty is high, if thunderstorms redevelop overnight
then a few storms could be severe with large hail the main hazard.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Additional shower and thunderstorms could develop again on
Tuesday, mainly northeast of Springfield where a few severe
storms will be possible. Drier conditions mid- week before
chances return Thursday into Friday across portions of the area.
Localized heavy rainfall may accompany some of this activity.

Excessive heat builds into the area through mid-week with heat
index values around 100 to 105 degrees Tuesday and Wednesday.

.SPOTTER INFORMATION STATEMENT...

 Spotter activation may be needed later today for southeast
Kansas and southern 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

Burchfield

In the hours before

Local storm report, Jul 17, 4:18 PM CDT, 28 minutes before
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Local storm report, Jul 17, 4:25 PM CDT, 21 minutes before
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Local storm report, Jul 17, 4:27 PM CDT, 19 minutes before
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Local storm report, Jul 17, 4:31 PM CDT, 15 minutes before
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Local storm report, Jul 17, 4:32 PM CDT, 14 minutes before
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Local storm report, Jul 17, 4:46 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 5:13 AM CDTSpecial Weather StatementSGFMaries32 min
Jul 17, 9:00 AM CDTSpecial Weather StatementSGFTexas30 min
Jul 17, 12:41 PM CDTHeat AdvisorySGFBarry, Barton, Cedar, Christian, Dade, Greene and 9 more30 hr
Jul 17, 1:30 PM CDTSevere Thunderstorm WarningSGFSt. Clair45 min
Jul 17, 1:35 PM CDTSpecial Weather StatementSGFLaclede25 min
Jul 17, 1:43 PM CDTSpecial Weather StatementSGFMcDonald32 min
Jul 17, 1:49 PM CDTSevere Thunderstorm WarningSGFMiller, Morgan41 min
Jul 17, 1:50 PM CDTSevere Thunderstorm WarningSGFMcDonald25 min
Jul 17, 2:07 PM CDTSevere Thunderstorm WarningSGFBenton, Hickory, St. Clair38 min
Jul 17, 2:23 PM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Hickory, Laclede, Polk, St. Clair52 min
Jul 17, 2:29 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFHickory, St. Clair46 min
Jul 17, 2:30 PM CDTSevere Thunderstorm WarningSGFMiller45 min
Jul 17, 2:35 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFLaclede, Pulaski55 min
Jul 17, 2:40 PM CDTSevere Thunderstorm WarningSGFCamden, Laclede, Maries, Phelps, Pulaski50 min
Jul 17, 3:03 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFDallas, Polk42 min
Jul 17, 3:06 PM CDTSevere Thunderstorm WarningSGFDallas, Webster, Wright39 min
Jul 17, 3:12 PM CDTSevere Thunderstorm WarningSGFDent, Phelps, Pulaski, Texas48 min
Jul 17, 3:15 PM CDTSevere Thunderstorm WarningSGFDallas, Polk45 min
Jul 17, 3:30 PM CDTSevere Thunderstorm WarningSGFPhelps, Pulaski45 min
Jul 17, 3:38 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFGreene, Webster52 min
Jul 17, 3:44 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFDouglas, Webster, Wright46 min
Jul 17, 3:53 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFMaries52 min
Jul 17, 4:07 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFGreene, Webster38 min
Jul 17, 4:13 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFDouglas62 min
Jul 17, 4:27 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas48 min
Jul 17, 4:55 PM CDTSevere Thunderstorm WarningSGFMorgan50 min
Jul 17, 5:18 PM CDTSevere Thunderstorm WarningSGFOzark42 min
Jul 17, 5:27 PM CDTSevere Thunderstorm WarningSGFCamden, Morgan48 min
Jul 17, 5:55 PM CDTSevere Thunderstorm WarningSGFCamden36 min
Jul 17, 6:13 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFLaclede47 min
Jul 17, 6:21 PM CDTSevere Thunderstorm Warning Destructive damage threatSGFCamden, Laclede39 min
Jul 17, 6:25 PM CDTSevere Thunderstorm Warning Considerable damage threatSGFDallas50 min
Jul 17, 6:43 PM CDTSevere Thunderstorm WarningSGFBenton47 min
Jul 17, 6:52 PM CDTSevere Thunderstorm Warning Destructive damage threatSGFDallas, Laclede, Webster, Wright38 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.