Alert archive / Missouri / Areal Flood Advisories in 2021

Areal Flood Advisory 33, NWS Springfield, MO

June 21, 2021Barry County, Stone County, Taney County, Missouri

NWS Springfield, MO issued this areal flood advisory at Jun 21, 2021, 7:26 AM CDT for Barry County, Stone County, Taney County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jun 21, 2021, 7:26 AM CDT (12:26 UTC)
Expired: Jun 21, 2021, 11:30 AM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Barry County, MO, Stone County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 59 km from the middle of the area, began a volume at 12:27 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

Little Rock, AR (KLZK), launched 12:00Z, 0.4 hours before the alert went out and 378 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: 2000 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 21, 6:42 AM CDT, 44 minutes earlier.

Area forecast discussion, Jun 21, 6:42 AM CDT, 44 minutes before

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Hazardous weather outlook, Jun 21, 6:07 AM CDT, 1 hour 19 minutes before

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In the hours before

Special weather statement, Jun 21, 1:55 AM CDT, 5 hours 31 minutes before

Special Weather Statement
National Weather Service Springfield MO
155 AM CDT Mon Jun 21 2021

MOZ079-080-090-091-210730-
Dallas MO-Polk MO-Greene MO-Webster MO-
155 AM CDT Mon Jun 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WEBSTER...SOUTHERN
DALLAS...SOUTHERN POLK AND NORTHEASTERN GREENE COUNTIES UNTIL 230 AM
CDT...

At 155 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 12 miles west of Buffalo to near Bolivar to
near Morrisville to near Walnut Grove. Movement was southeast at 55
mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Stockton Lake...                  Buffalo...
Fair Grove...                     Pleasant Hope...
Morrisville...                    Aldrich...
Elkland...                        Sacville...
Glidewell...                      Ebenezer...
Bassville...                      Brighton...
March...                          Olive...
Eudora...                         Foose...
Charity...

LAT...LON 3748 9362 3757 9362 3756 9332 3762 9319
      3767 9318 3756 9290 3737 9294 3732 9308
      3726 9331
TIME...MOT...LOC 0655Z 302DEG 47KT 3768 9333 3758 9334 3752 9345 3748
9354

Titus

Local storm report, Jun 21, 2:41 AM CDT, 4 hours 45 minutes before

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Local storm report, Jun 21, 3:39 AM CDT, 3 hours 47 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, 12:06 AM CDT	Special Weather Statement	SGF	Morgan	24 min
Jun 21, 12:56 AM CDT	Special Weather Statement	SGF	St. Clair, Vernon	49 min
Jun 21, 1:07 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair, Vernon	38 min
Jun 21, 1:29 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Hickory, Polk	36 min
Jun 21, 1:55 AM CDT	Special Weather Statement	SGF	Polk	35 min
Jun 21, 7:10 AM CDT	Areal Flood Advisory	SGF	Jasper, Newton	4 hr

Nearby

Areal Flood Advisories in Missouri, 2021 Every areal flood advisory 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.