Alert archive / Missouri / Special Weather Statements in 2020

Special Weather Statement, NWS Springfield, MO

June 27, 2020Laclede County, Missouri

NWS Springfield, MO issued this special weather statement at Jun 27, 2020, 7:13 PM CDT for Laclede County, Missouri. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 27, 2020, 7:13 PM CDT (00:13 UTC)
Expired: Jun 27, 2020, 7:45 PM CDT
In force: 32 min
Issued by: NWS Springfield, MO

County Laclede County, MO

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 00:15 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 nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.2 hours before the alert went out and 315 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: 1397 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 1030 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 27, 6:28 PM CDT, 45 minutes earlier.

Area forecast discussion, Jun 27, 6:28 PM CDT, 45 minutes before

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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Hazardous weather outlook, Jun 27, 3:59 PM CDT, 3 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
359 PM CDT Sat Jun 27 2020

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-282100-
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-
359 PM CDT Sat Jun 27 2020

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

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

DISCUSSION...

  Afternoon heat index values over southeast Kansas and parts
  of western Missouri will rise into the low to mid 90s.

  Non-thunderstorm wind gusts around 30 mph will continue
  into early this evening across western Missouri and
  southeastern Kansas.

  Scattered thunderstorms will be possible into this evening.
  A few strong to severe storms will be possible, mainly north
  of the Highway 60 corridor. Wind gusts of 50 to 60 mph and
  hail up to the size of quarters would be the primary
  potential severe weather hazards. Frequent lightning and
  localized flash flooding will also be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

  Scattered thunderstorms will be possible from Monday through
  Friday of next week.

  Heat index values from the mid to upper 90s are expected on
  a daily basis, with values over 100 degrees possible by the
  middle of next week near the I-49 corridor.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be needed through tonight.

&&

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

Schaumann

In the hours before

Special weather statement, Jun 27, 4:34 PM CDT, 2 hours 39 minutes before

Special Weather Statement
National Weather Service Springfield MO
434 PM CDT Sat Jun 27 2020

MOZ058-272215-
Maries MO-
434 PM CDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MARIES COUNTY UNTIL
515 PM CDT...

At 434 PM CDT, Doppler radar was tracking a strong thunderstorm over
Vienna, or 18 miles northwest of Rolla, moving east at 30 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Vienna...                         Vichy...

LAT...LON 3816 9164 3815 9163 3805 9163 3805 9165
      3813 9204 3824 9204 3827 9164
TIME...MOT...LOC 2134Z 272DEG 25KT 3818 9196

Titus

Special weather statement, Jun 27, 5:22 PM CDT, 1 hour 51 minutes before

Special Weather Statement
National Weather Service Springfield MO
522 PM CDT Sat Jun 27 2020

MOZ081-272300-
Laclede MO-
522 PM CDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL LACLEDE COUNTY UNTIL
600 PM CDT...

At 522 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lebanon, moving east at 25 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Lebanon...                        Dry Knob...
Falcon...

This includes Interstate 44 between mile markers 130 and 132.

LAT...LON 3772 9241 3771 9240 3764 9225 3756 9225
      3769 9264 3772 9263 3774 9241
TIME...MOT...LOC 2222Z 269DEG 22KT 3770 9258

Titus

Special weather statement, Jun 27, 6:03 PM CDT, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Springfield MO
603 PM CDT Sat Jun 27 2020

MOZ058-071-272345-
Maries MO-Phelps MO-
603 PM CDT Sat Jun 27 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARIES AND PHELPS
COUNTIES UNTIL 645 PM CDT...

At 603 PM CDT, Doppler radar was tracking a strong thunderstorm near
Newburg, or 10 miles west of Rolla, moving east at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Rolla...                          St. James...
Doolittle...                      Newburg...
Northwye...                       Jerome...
Rosati...

This includes Interstate 44 near mile marker 169, and between mile
markers 171 and 200.

LAT...LON 3779 9202 3783 9203 3787 9202 3800 9202
      3816 9163 3815 9153 3782 9153
TIME...MOT...LOC 2303Z 255DEG 21KT 3791 9196

Albano

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 7:15 PM CDT	Special Weather Statement	SGF	Maries	45 min
Jun 27, 7:58 PM CDT	Special Weather Statement	SGF	Texas	47 min
Jun 27, 9:15 PM CDT	Special Weather Statement	SGF	Phelps	45 min
Jun 27, 10:12 PM CDT	Special Weather Statement	SGF	Dent	48 min
Jun 28, 8:43 AM CDT	River Flood Warning	SGF	Bates, Vernon	4 days

Nearby

Special Weather Statements in Missouri, 2020 Every special weather statement in 2020

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.