Alert archive / Missouri / Special Weather Statements in 2011

Special Weather Statement, NWS Springfield, MO

August 22, 2011Douglas County, Missouri

NWS Springfield, MO issued this special weather statement at Aug 22, 2011, 3:15 PM CDT for Douglas County, Missouri. It was in force for 30 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: Aug 22, 2011, 3:15 PM CDT (20:15 UTC)
Expired: Aug 22, 2011, 3:45 PM CDT
In force: 30 min
Issued by: NWS Springfield, MO

County Douglas County, MO

The radar

The Springfield radar (KSGF), 59 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 351 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: 2183 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Aug 22, 2:34 PM CDT, 41 minutes earlier.

Area forecast discussion, Aug 22, 2:34 PM CDT, 41 minutes before

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Hazardous weather outlook, Aug 22, 12:58 PM CDT, 2 hours 17 minutes before

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In the hours before

Special weather statement, Aug 22, 2:39 PM CDT, 36 minutes before

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Special weather statement, Aug 22, 3:15 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
315 PM CDT MON AUG 22 2011

MOZ095-096-222045-
CHRISTIAN MO-DOUGLAS MO-
315 PM CDT MON AUG 22 2011

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL CHRISTIAN AND
WESTERN DOUGLAS COUNTIES UNTIL 345 PM CDT...

AT 312 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 4 MILES EAST OF KELTNER...OR 12 MILES WEST OF
AVA...MOVING SOUTHEAST AT 10 MPH. PENNY SIZE HAIL...AND WINDS AROUND
50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE AVA...DOGWOOD...ELKHEAD...GOODHOPE...
KELTNER AND ROME.

PEOPLE IN EASTERN CHRISTIAN AND WESTERN DOUGLAS COUNTIES...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

LAT...LON 3696 9304 3707 9287 3702 9255 3680 9274
      3681 9283
TIME...MOT...LOC 2016Z 320DEG 10KT 3695 9288

BOXELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 2:39 PM CDT	Special Weather Statement	SGF	Christian	36 min

Nearby

Special Weather Statements in Missouri, 2011 Every special weather statement in 2011

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.