Alert archive / Missouri / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 231, NWS Springfield, MO

June 21, 2019Dallas County, Greene County, Polk County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 21, 2019, 1:56 PM CDT for Dallas County, Greene County, Polk County, 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: Jun 21, 2019, 1:56 PM CDT (18:56 UTC)
Expired: Jun 21, 2019, 2:45 PM CDT
In force: 49 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dallas County, MO, Greene County, MO, Polk County, MO

The radar

The Springfield radar (KSGF), 34 km from the middle of the area, began a volume at 18:59 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
Jun 21, 8:28 AM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.9 hours before the alert went out and 84 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: 3542 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.2

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 Jun 21, 11:59 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Jun 21, 11:59 AM CDT, 1 hour 57 minutes before

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Hazardous weather outlook, Jun 21, 9:07 AM CDT, 4 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
907 AM CDT Fri Jun 21 2019

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-221415-
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-
907 AM CDT Fri Jun 21 2019

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.
  Elevated thunderstorm wind damage risk.
  Limited flooding risk.
  Limited lightning risk.
  Elevated excessive heat risk.
  Limited non thunderstorm wind risk.

DISCUSSION...

  A cluster of thunderstorms will likely track east and southeast
  into northern and northeastern portions of the outlook area this
  morning into the early afternoon hours. Damaging straight line
  winds, hail up to the size of half dollars, frequent lightning,
  and locally heavy rainfall will be possible. This will include a
  risk for isolated flash flooding.

  Heat index values today will be in the upper 90s to 105 degrees.
  Southerly wind gusts of 25 to 35 mph can also be expected on
  Friday across western Missouri and southeastern Kansas.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

  Heat index values on Saturday afternoon will be around 100
  degrees.

  Additional showers and storms will again return to the area from
  Saturday night into Monday. Some strong to severe storms and
  heavy rainfall will be possible along with at least a limited risk for
  flooding.

  Limited chances for thunderstorms will then continue into next
  Monday and Tuesday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation may be needed in the next three hours for
  portions of central Missouri, mainly north of an Appleton City to
  Rolla line.

&&

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

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

Raberding

In the hours before

Special weather statement, Jun 21, 1:12 PM CDT, 44 minutes before

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Local storm report, Jun 21, 1:18 PM CDT, 38 minutes before

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Local storm report, Jun 21, 1:35 PM CDT, 21 minutes before

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Local storm report, Jun 21, 1:36 PM CDT, 20 minutes before

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Special weather statement, Jun 21, 1:41 PM CDT, 15 minutes before

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Special weather statement, Jun 21, 1:43 PM CDT, 13 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
Jun 21, 8:59 AM CDT	River Flood Warning	SGF	Cedar	41 hr
Jun 21, 9:41 AM CDT	Special Weather Statement	SGF	Benton, Morgan	49 min
Jun 21, 11:05 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair, Vernon	55 min
Jun 21, 11:23 AM CDT	Severe Thunderstorm Warning	SGF	Benton, Camden, Morgan	67 min
Jun 21, 11:56 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Hickory, Polk, St. Clair, Vernon	64 min
Jun 21, 12:30 PM CDT	Special Weather Statement	SGF	Benton, Camden, Miller, Morgan	45 min
Jun 21, 12:59 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Hickory, Polk, St. Clair, Vernon	61 min
Jun 21, 1:12 PM CDT	Special Weather Statement	SGF	Camden, Pulaski	48 min
Jun 21, 1:31 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller, Pulaski	24 min
Jun 21, 1:41 PM CDT	Special Weather Statement	SGF	Christian, Dade, Dallas, Greene, Laclede, Lawrence and 3 more	64 min
Jun 21, 1:43 PM CDT	Special Weather Statement	SGF	Dent, Maries, Phelps, Pulaski	62 min
Jun 21, 2:21 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Texas	25 min
Jun 21, 2:24 PM CDT	Special Weather Statement	SGF	Shannon, Texas	66 min
Jun 21, 2:38 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Polk, Webster	67 min
Jun 21, 2:53 PM CDT	Special Weather Statement	SGF	Christian, Douglas, Ozark, Stone, Taney	52 min
Jun 21, 3:01 PM CDT	Severe Thunderstorm Warning	SGF	Texas	44 min
Jun 21, 3:36 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	39 min
Jun 21, 3:41 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Wright	33 min
Jun 21, 4:07 PM CDT	Special Weather Statement	SGF	Douglas, Howell, Oregon, Ozark	53 min
Jun 21, 4:22 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	53 min
Jun 21, 10:44 AM CDT	Special Weather Statement	SGF	Bourbon	46 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2019 Every severe thunderstorm warning in 2019

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.