Alert archive / Missouri / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 186, NWS Springfield, MO

July 20, 20134 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 20, 2013, 6:51 PM CDT for 4 counties in 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 counties it named.

The facts

Issued: Jul 20, 2013, 6:51 PM CDT (23:51 UTC)
Expired: Jul 20, 2013, 7:30 PM CDT
In force: 39 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Barton County, MO, Dade County, MO, Jasper County, MO, Lawrence County, MO

The radar

The Springfield radar (KSGF), 62 km from the middle of the area, began a volume at 23:54 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 12:00Z, 11.9 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-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: 672 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1380 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 54 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 20, 2:43 PM CDT, 4 hours 8 minutes earlier.

Area forecast discussion, Jul 20, 2:43 PM CDT, 4 hours 8 minutes before

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Hazardous weather outlook, Jul 20, 12:26 PM CDT, 6 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1226 PM CDT SAT JUL 20 2013

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-211730-
BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON-
ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS-
LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON-
LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE-
TANEY-OZARK-OREGON-
1226 PM CDT SAT JUL 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED...

  LIMITED THUNDERSTORM WIND DAMAGE RISK.
  ELEVATED LIGHTNING RISK.
  LIMITED EXCESSIVE HEAT RISK.

DISCUSSION...

  HEAT INDICES WILL REACH THE UPPER 90S AND APPROACH 100 DEGREES
  THIS AFTERNOON.

  SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON INTO THIS
  EVENING AS A FRONTAL SYSTEM SAGS INTO SOUTHERN MISSOURI. A FEW
  OF THESE STORMS COULD PRODUCE DAMAGING DOWNBURST WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

  THERE WILL BE SEVERAL CHANCES FOR THUNDERSTORMS FROM SUNDAY
  THROUGH MOST OF NEXT WEEK. THE OZARKS WILL BECOME POSITIONED
  WITHIN A FAVORABLE PATTERN FOR BOTH NOCTURNAL AND AFTERNOON
  THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE)

GRIFFIN

In the hours before

Special weather statement, Jul 20, 3:46 PM CDT, 3 hours 5 minutes before

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Special weather statement, Jul 20, 4:15 PM CDT, 2 hours 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
415 PM CDT SAT JUL 20 2013

MOZ079-080-091-202145-
POLK MO-WEBSTER MO-DALLAS MO-
415 PM CDT SAT JUL 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN WEBSTER...SOUTHEASTERN
POLK AND SOUTHERN DALLAS COUNTIES UNTIL 445 PM CDT...

AT 412 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
SCATTERED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FOOSE TO
4 MILES SOUTHEAST OF ELKLAND TO MARSHFIELD TO 4 MILES EAST OF
NIANGUA...MOVING NORTHWEST AT 20 MPH. WINDS AROUND 50 MPH ARE
EXPECTED WITH THESE STORMS.

PEOPLE IN NORTHERN WEBSTER...SOUTHEASTERN POLK AND SOUTHERN DALLAS
COUNTIES...INCLUDING MARSHFIELD AND NIANGUA...SHOULD MONITOR THE
WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE
PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 3734 9308 3741 9308 3742 9317 3756 9332
      3765 9306 3755 9285 3749 9285 3748 9272
      3748 9269 3733 9269 3727 9299
TIME...MOT...LOC 2115Z 144DEG 17KT 3755 9316 3740 9301
          3735 9294 3739 9277

WISE

Special weather statement, Jul 20, 5:07 PM CDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
507 PM CDT SAT JUL 20 2013

MOZ079-202245-
POLK MO-
507 PM CDT SAT JUL 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL POLK COUNTY UNTIL 545 PM
CDT...

AT 503 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 5 MILES NORTHEAST OF BOLIVAR...MOVING EAST AT 10
MPH. PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE BOLIVAR...GOODSON...HALF WAY AND POLK.

PEOPLE IN CENTRAL POLK COUNTY...SHOULD MONITOR THE WEATHER SITUATION
CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 3777 9326 3769 9320 3759 9322 3756 9341
      3766 9347 3775 9342
TIME...MOT...LOC 2208Z 258DEG 11KT 3766 9331

SCHAUMANN

Special weather statement, Jul 20, 5:37 PM CDT, 1 hour 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
537 PM CDT SAT JUL 20 2013

KSZ073-202315-
BOURBON KS-
537 PM CDT SAT JUL 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BOURBON COUNTY UNTIL
615 PM CDT...

AT 536 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR DEVON...OR 7 MILES NORTHWEST OF FORT
SCOTT...MOVING EAST AT 10 MPH. PENNY SIZE HAIL...AND WINDS AROUND 50
MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE DEVON...FORT SCOTT...FULTON...HAMMOND...
HARDING AND MAPLETON.

PEOPLE IN NORTHEASTERN BOURBON COUNTY...INCLUDING FULTON...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

LAT...LON 3804 9488 3805 9476 3805 9464 3804 9462
      3796 9461 3784 9461 3781 9471 3784 9489
      3794 9492
TIME...MOT...LOC 2238Z 255DEG 7KT 3793 9476

SCHAUMANN

Special weather statement, Jul 20, 6:16 PM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
616 PM CDT SAT JUL 20 2013

MOZ066-210000-
VERNON MO-
616 PM CDT SAT JUL 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR VERNON COUNTY UNTIL 700 PM CDT...

AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES NORTHWEST OF
METZ TO 5 MILES NORTHEAST OF SHELDON...MOVING NORTHEAST AT 15 MPH.
PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE BRONAUGH...DEERFIELD...HARWOOD...HORTON...
METZ...MILO...MONTEVALLO...MOUNDVILLE...NEVADA...RICHARDS...
SHELDON...STOTESBURY AND WALKER.

PEOPLE IN VERNON COUNTY...INCLUDING NEVADA AND WALKER...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

THESE STORMS ARE PRODUCING NEARLY CONTINUOUS CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INDOORS IMMEDIATELY AND STAY AWAY FROM
WINDOWS.

LAT...LON 3806 9462 3806 9427 3804 9422 3806 9421
      3788 9406 3765 9407 3765 9444 3788 9462
TIME...MOT...LOC 2316Z 238DEG 13KT 3803 9449 3769 9421

SCHAUMANN

Special weather statement, Jul 20, 6:30 PM CDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
630 PM CDT SAT JUL 20 2013

MOZ089-210000-
DADE MO-
630 PM CDT SAT JUL 20 2013

...SIGNIFICANT WEATHER ADVISORY FOR DADE COUNTY UNTIL 700 PM CDT...

AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 3 MILES NORTHEAST OF LOCKWOOD...OR 3 MILES WEST
OF GREENFIELD...MOVING EAST AT 10 MPH. PENNY SIZE HAIL...AND WINDS
AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

PEOPLE IN DADE COUNTY...INCLUDING LOCKWOOD...GREENFIELD AND
EVERTON...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

THIS STORM IS PRODUCING NEARLY CONTINUOUS CLOUD TO GROUND LIGHTNING.
SEEK SHELTER INDOORS IMMEDIATELY AND STAY AWAY FROM WINDOWS.

LAT...LON 3729 9372 3728 9381 3733 9403 3752 9397
      3751 9362 3728 9363 3728 9371
TIME...MOT...LOC 2330Z 286DEG 10KT 3741 9388

WISE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 1:11 PM CDT	Special Weather Statement	SGF	Lawrence	49 min
Jul 20, 1:34 PM CDT	Special Weather Statement	SGF	Douglas	26 min
Jul 20, 1:46 PM CDT	Severe Thunderstorm Warning	SGF	Douglas	29 min
Jul 20, 2:01 PM CDT	Special Weather Statement	SGF	Lawrence	29 min
Jul 20, 2:14 PM CDT	Special Weather Statement	SGF	Texas	31 min
Jul 20, 2:16 PM CDT	Special Weather Statement	SGF	Laclede	29 min
Jul 20, 2:26 PM CDT	Special Weather Statement	SGF	Greene	34 min
Jul 20, 2:39 PM CDT	Special Weather Statement	SGF	Christian	36 min
Jul 20, 2:50 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Taney	25 min
Jul 20, 2:54 PM CDT	Special Weather Statement	SGF	Stone	36 min
Jul 20, 3:01 PM CDT	Special Weather Statement	SGF	Texas	29 min
Jul 20, 3:02 PM CDT	Severe Thunderstorm Warning	SGF	Texas	28 min
Jul 20, 3:12 PM CDT	Special Weather Statement	SGF	Shannon	33 min
Jul 20, 3:36 PM CDT	Special Weather Statement	SGF	Texas	24 min
Jul 20, 3:41 PM CDT	Special Weather Statement	SGF	Laclede	34 min
Jul 20, 3:46 PM CDT	Special Weather Statement	SGF	Texas	29 min
Jul 20, 4:15 PM CDT	Special Weather Statement	SGF	Webster	30 min
Jul 20, 5:07 PM CDT	Special Weather Statement	SGF	Polk	38 min
Jul 20, 6:16 PM CDT	Special Weather Statement	SGF	Vernon	44 min
Jul 20, 6:30 PM CDT	Special Weather Statement	SGF	Dade	30 min
Jul 20, 6:54 PM CDT	Special Weather Statement	SGF	McDonald	36 min
Jul 20, 5:37 PM CDT	Special Weather Statement	SGF	Bourbon	38 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2013 Every severe thunderstorm warning in 2013

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.