Alert archive / Missouri / Special Weather Statements in 2021

Special Weather Statement, NWS Springfield, MO

July 30, 2021Shannon County, Missouri

NWS Springfield, MO issued this special weather statement at Jul 30, 2021, 2:09 PM CDT for Shannon County, Missouri. It was in force for 36 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: Jul 30, 2021, 2:09 PM CDT (19:09 UTC)
Expired: Jul 30, 2021, 2:45 PM CDT
In force: 36 min
Issued by: NWS Springfield, MO

County Shannon County, MO

The radar

The Springfield radar (KSGF), 176 km from the middle of the area, began a volume at 19:10 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

Springfield, MO (KSGF), launched 12:00Z, 7.2 hours before the alert went out and 209 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: 688 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 1527 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 30, 12:31 PM CDT, 1 hour 38 minutes earlier.

Area forecast discussion, Jul 30, 12:31 PM CDT, 1 hour 38 minutes before

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Hazardous weather outlook, Jul 30, 4:55 AM CDT, 9 hours 14 minutes before

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In the hours before

Special weather statement, Jul 30, 2:09 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Springfield MO
209 PM CDT Fri Jul 30 2021

MOZ098-106-301945-
Oregon MO-Shannon MO-
209 PM CDT Fri Jul 30 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SHANNON AND NORTHERN
OREGON COUNTIES UNTIL 245 PM CDT...

At 209 PM CDT, Doppler radar was tracking a strong thunderstorm near
Birch Tree, or 15 miles east of Mountain View, moving south at 15
mph.

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

This storm will remain over mainly rural areas of southwestern
Shannon and northern Oregon Counties, including the following
locations... Thomasville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3703 9155 3709 9146 3706 9133 3680 9123
      3678 9158
TIME...MOT...LOC 1909Z 349DEG 12KT 3697 9142

Schaumann

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 2:56 AM CDT	Excessive Heat Warning	SGF	Barton, Cedar, Dade, Jasper, Lawrence, McDonald and 3 more	42 hr
Jul 30, 2:56 AM CDT	Heat Advisory	SGF	Barry, Benton, Camden, Christian, Dallas, Douglas and 14 more	42 hr
Jul 30, 6:04 PM CDT	Special Weather Statement	SGF	Camden	26 min

Nearby

Special Weather Statements in Missouri, 2021 Every special weather statement in 2021

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.