Alert archive / Missouri / Special Weather Statements in 2021

Special Weather Statement, NWS Springfield, MO

January 25, 2021Shannon County, Missouri

NWS Springfield, MO issued this special weather statement at Jan 25, 2021, 3:36 AM CST for Shannon County, Missouri. It was in force for 39 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: Jan 25, 2021, 3:36 AM CST (09:36 UTC)
Expired: Jan 25, 2021, 4:15 AM CST
In force: 39 min
Issued by: NWS Springfield, MO

County Shannon County, MO

The radar

The Springfield radar (KSGF), 161 km from the middle of the area, began a volume at 09:39 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 00:00Z, 9.6 hours before the alert went out and 197 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: 3 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 446 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 231 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 Jan 25, 2:25 AM CST, 1 hour 11 minutes earlier.

Area forecast discussion, Jan 25, 2:25 AM CST, 1 hour 11 minutes before

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Hazardous weather outlook, Jan 24, 9:59 PM CST, 5 hours 37 minutes before

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In the hours before

Special weather statement, Jan 25, 3:36 AM CST, 0 minutes before

Special Weather Statement
National Weather Service Springfield MO
336 AM CST Mon Jan 25 2021

MOZ082-096>098-251015-
Douglas MO-Howell MO-Shannon MO-Texas MO-
336 AM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR SHANNON...EASTERN DOUGLAS...
NORTHERN HOWELL AND SOUTHEASTERN TEXAS COUNTIES UNTIL 415 AM CST...

At 335 AM CST, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles south of Mountain Grove to 13 miles
southwest of Willow Springs to 18 miles northeast of Gainesville.
Movement was northeast at 60 mph.

Half inch hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Current River State Park...       Echo Bluff State Park...
Mountain View...                  Willow Springs...
Cabool...                         Winona...
Birch Tree...                     Eminence...
Pomona...                         Summersville...
Montier...                        Peace Valley...
Teresita...                       Midridge...
Arroll...                         Eunice...
Alley Spring...                   Siloam Springs...
Hartshorn...                      Clear Springs...

LAT...LON 3709 9118 3708 9122 3700 9122 3689 9166
      3675 9211 3679 9212 3680 9219 3689 9218
      3707 9221 3742 9137 3742 9136 3741 9119
      3724 9116
TIME...MOT...LOC 0935Z 246DEG 55KT 3700 9220 3689 9219 3681 9220

Terry

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 24, 9:36 PM CST	Flash Flood Watch	SGF	Barry, Christian, Douglas, Greene, Howell, Jasper and 11 more	14 hr
Jan 25, 3:28 AM CST	Flash Flood Warning	SGF	Barry, Christian, McDonald, Newton, Stone	6 hr
Jan 25, 6:44 AM CST	Flash Flood Warning	SGF	Camden, Dallas, Laclede, Maries, Miller, Phelps and 1 more	3 hr
Jan 25, 7:49 AM CST	Flash Flood Warning	SGF	Christian, Douglas, Laclede, Webster, Wright	3 hr
Jan 25, 9:15 AM CST	Flash Flood Warning	SGF	Howell, Shannon, Texas	3 hr
Jan 25, 9:22 AM CST	Areal Flood Warning	SGF	Barry, Christian, Newton, Stone	5 hr
Jan 25, 9:34 AM CST	Areal Flood Warning	SGF	Camden, Dallas, Laclede, Maries, Miller, Phelps and 1 more	5 hr
Jan 25, 10:44 AM CST	Areal Flood Warning	SGF	Christian, Douglas, Laclede, Webster, Wright	4 hr
Jan 25, 12:16 PM CST	Areal Flood Warning	SGF	Howell, Texas	6 hr
Jan 25, 12:47 PM CST	River Flood Warning	SGF	Shannon	16 hr
Jan 25, 2:08 PM CST	Areal Flood Advisory	SGF	Barry, Christian, Dallas, Greene, Stone, Taney and 1 more	14 hr
Jan 25, 2:23 PM CST	Areal Flood Advisory	SGF	Christian, Douglas, Laclede, Webster, Wright	14 hr
Jan 25, 5:39 PM CST	River Flood Warning	SGF	Pulaski	29 hr
Jan 25, 5:40 PM CST	River Flood Warning	SGF	Pulaski	17 hr

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.