Alert archive / Missouri / Special Weather Statements in 2011

Special Weather Statement, NWS Springfield, MO

May 20, 2011Christian County, Taney County, Missouri

NWS Springfield, MO issued this special weather statement at May 20, 2011, 1:48 PM CDT for Christian County, Taney County, Missouri. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 20, 2011, 1:48 PM CDT (18:48 UTC)
Expired
May 20, 2011, 2:30 PM CDT
In force
42 min
Issued by
NWS Springfield, MO

Counties Christian County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 59 km from the middle of the area, began a volume at 18:50 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.

What was reported inside it

TimeReportWhereRemark
May 20, 1:50 PM CDTTSTM WND GST 54Branson, MOMEASURED AT LAKE TANEYCOMO IN BRANSON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.8 hours before the alert went out and 53 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2011-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 537 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2011-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
537 J/kg
Mixed-layer CIN
-280 J/kg
Mixed-layer LCL
940 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

668 
WWUS83 KSGF 201848
SPSSGF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
148 PM CDT FRI MAY 20 2011

MOZ095-104-201930-
CHRISTIAN MO-TANEY MO-
148 PM CDT FRI MAY 20 2011

...SIGNIFICANT WEATHER ALERT FOR CENTRAL CHRISTIAN AND WESTERN TANEY
COUNTIES UNTIL 230 PM CDT...

AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES SOUTHWEST OF
CHESTNUTRIDGE TO RIDGEDALE...MOVING EAST AT 40 MPH. WINDS AROUND 50
MPH ARE EXPECTED WITH THESE STORMS.

THESE STORMS WILL BE NEAR...
  ROCKAWAY BEACH...POWERSITE...OZARK BEACH AND MERRIAM WOODS BY 155
  PM CDT.
  TANEYVILLE AND KISSEE MILLS BY 205 PM CDT.
  GARRISON BY 210 PM CDT.

OTHER LOCATIONS IN THIS SIGNIFICANT WEATHER ALERT INCLUDE TABLE ROCK
LAKE. 

LAT...LON 3662 9332 3665 9331 3682 9331 3682 9333
      3695 9333 3700 9300 3650 9296 3649 9331
TIME...MOT...LOC 1849Z 270DEG 35KT 3678 9325 3651 9316

$$

GRIFFIN

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 7:54 PM CDTAreal Flood WarningSGFCamden, Maries, Miller, Morgan, Phelps, Pulaski6 hr
May 20, 7:41 AM CDTSevere Thunderstorm WarningSGFBarton, Jasper34 min
May 20, 8:13 AM CDTSpecial Weather StatementSGFBarton, Jasper47 min
May 20, 8:19 AM CDTSevere Thunderstorm WarningSGFBarton, Vernon41 min
May 20, 8:22 AM CDTSevere Thunderstorm WarningSGFBarton, Jasper38 min
May 20, 8:33 AM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Dade, Jasper, Lawrence42 min
May 20, 8:38 AM CDTFlash Flood WarningSGFBarton, Jasper, Newton4 hr
May 20, 9:03 AM CDTFlash Flood WarningSGFBarton, Cedar, Dade, Jasper, Lawrence, Vernon4 hr
May 20, 9:20 AM CDTRiver Flood WarningSGFVernon42 hr
May 20, 9:20 AM CDTRiver Flood WarningSGFVernon13 hr
May 20, 9:32 AM CDTSpecial Weather StatementSGFSt. Clair43 min
May 20, 10:47 AM CDTSpecial Weather StatementSGFLawrence28 min
May 20, 10:51 AM CDTFlash Flood WarningSGFCedar, Hickory, Polk, St. Clair2 hr
May 20, 10:53 AM CDTSpecial Weather StatementSGFBenton, Hickory52 min
May 20, 11:05 AM CDTFlash Flood WatchSGFBarry, Barton, Benton, Camden, Cedar, Christian and 28 more40 hr
May 20, 2:20 PM CDTSpecial Weather StatementSGFOregon40 min
May 20, 2:41 PM CDTAreal Flood WarningSGFChristian, Stone, Taney6 hr
May 20, 2:54 PM CDTAreal Flood WarningSGFCamden, Dallas, Miller, Morgan6 hr
May 20, 2:56 PM CDTSpecial Weather StatementSGFOregon49 min
May 20, 3:05 PM CDTAreal Flood WarningSGFBenton, Cedar, Dade, Hickory, Polk, St. Clair6 hr
May 20, 3:41 PM CDTRiver Flood WarningSGFCedar41 hr
May 20, 3:41 PM CDTRiver Flood WarningSGFBates, Vernon19 hr
May 20, 7:35 AM CDTSpecial Weather StatementSGFCherokee25 min

Nearby

Special Weather Statements in Missouri, 2011Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.