Alert archive / Missouri / Special Weather Statements in 2021

Special Weather Statement, NWS Springfield, MO

May 9, 2021Wright County, Missouri

NWS Springfield, MO issued this special weather statement at May 9, 2021, 4:44 AM CDT for Wright County, Missouri. It was in force for 46 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: May 9, 2021, 4:44 AM CDT (09:44 UTC)
Expired: May 9, 2021, 5:30 AM CDT
In force: 46 min
Issued by: NWS Springfield, MO

County Wright County, MO

The radar

The Springfield radar (KSGF), 58 km from the middle of the area, began a volume at 09:45 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, 9.7 hours before the alert went out and 95 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: 2 J/kg
Mixed-layer CIN: -429 J/kg
Mixed-layer LCL: 2095 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 370 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

934 
WWUS83 KSGF 090944
SPSSGF

Special Weather Statement
National Weather Service Springfield MO
444 AM CDT Sun May 9 2021
 
MOZ091-092-096-091030-
Douglas MO-Wright MO-Webster MO-
444 AM CDT Sun May 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WEBSTER...
NORTHWESTERN DOUGLAS AND WRIGHT COUNTIES UNTIL 530 AM CDT...

At 444 AM CDT, Doppler radar was tracking a strong thunderstorm near
Diggins, or 14 miles south of Marshfield, moving east at 55 mph.

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

Locations impacted include...
Mountain Grove...                 Seymour...
Mansfield...                      Fordland...
Dawson...                         Norwood...
Hartville...                      Duncan...
Diggins...                        Graff...
Dogwood...                        Odin...

LAT...LON 3707 9291 3708 9290 3709 9295 3723 9298
      3736 9226 3704 9225 3696 9291
TIME...MOT...LOC 0944Z 257DEG 49KT 3713 9286 

$$

Lindenberg

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 8:02 PM CDT	River Flood Warning	SGF	Vernon	3 days
May 9, 1:58 AM CDT	Special Weather Statement	SGF	Morgan	32 min
May 9, 2:10 AM CDT	Special Weather Statement	SGF	Newton	50 min
May 9, 2:23 AM CDT	Severe Thunderstorm Warning	SGF	McDonald	39 min
May 9, 2:28 AM CDT	Special Weather Statement	SGF	Morgan	47 min
May 9, 2:44 AM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald	46 min
May 9, 2:47 AM CDT	Special Weather Statement	SGF	Lawrence, Newton	43 min
May 9, 3:14 AM CDT	Special Weather Statement	SGF	Christian, Greene, Webster	46 min
May 9, 3:17 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	43 min
May 9, 3:22 AM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	38 min
May 9, 3:23 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Greene, Lawrence, Stone	52 min
May 9, 3:37 AM CDT	Severe Thunderstorm Warning	SGF	Dade, Greene, Lawrence, Polk	38 min
May 9, 3:39 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Stone, Taney	51 min
May 9, 3:46 AM CDT	Areal Flood Advisory	SGF	Cedar, St. Clair, Vernon	6 hr
May 9, 4:04 AM CDT	Special Weather Statement	SGF	Christian, Greene, Webster	41 min
May 9, 4:09 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Polk, Webster	51 min
May 9, 4:11 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Taney	49 min
May 9, 4:23 AM CDT	Areal Flood Advisory	SGF	Cedar, Dade, Greene, Polk, St. Clair, Vernon	6 hr
May 9, 4:56 AM CDT	Special Weather Statement	SGF	Douglas, Howell	49 min
May 9, 5:08 AM CDT	Areal Flood Advisory	SGF	Christian, Dallas, Greene, Laclede, Polk, Webster and 1 more	6 hr
May 9, 5:26 AM CDT	Areal Flood Advisory	SGF	Christian, Douglas, Ozark, Taney, Webster, Wright	6 hr
May 9, 5:32 AM CDT	Special Weather Statement	SGF	Ozark	43 min
May 9, 6:12 AM CDT	Areal Flood Advisory	SGF	Barton, Cedar, Dade, Greene, Jasper, Lawrence and 1 more	6 hr
May 9, 6:53 AM CDT	Areal Flood Advisory	SGF	Barry, Christian, Greene, Jasper, Lawrence, Newton and 3 more	6 hr
May 9, 7:14 AM CDT	Special Weather Statement	SGF	Cedar	46 min
May 9, 7:38 AM CDT	Special Weather Statement	SGF	Dade	52 min
May 9, 7:48 AM CDT	River Flood Warning	SGF	Bates, Vernon	23 hr
May 9, 8:59 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	31 min
May 9, 9:51 AM CDT	Areal Flood Advisory	SGF	Barton, Cedar, Dade, Dallas, Polk, Vernon	6 hr
May 9, 9:56 AM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	34 min
May 9, 10:35 AM CDT	Special Weather Statement	SGF	Ozark	25 min
May 9, 10:57 AM CDT	Areal Flood Advisory	SGF	Barry, Christian, Douglas, Greene, Lawrence, Stone and 3 more	10 hr
May 9, 11:21 AM CDT	Areal Flood Advisory	SGF	Howell, Ozark	14 hr
May 9, 2:59 PM CDT	Areal Flood Warning	SGF	Barry, Stone	4 hr
May 9, 3:18 PM CDT	Areal Flood Warning	SGF	Christian, Greene	10 hr
May 8, 8:02 PM CDT	River Flood Warning	SGF	Bourbon	25 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.