Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 206, NWS Springfield, MO

May 22, 2011Ozark County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 22, 2011, 8:49 PM CDT for Ozark County, Missouri. It was in force for 41 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 22, 2011, 8:49 PM CDT (01:49 UTC)
Expired: May 22, 2011, 9:30 PM CDT
In force: 41 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Ozark County, MO

The radar

The Springfield radar (KSGF), 113 km from the middle of the area, began a volume at 01:50 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 22, 8:26 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.8 hours before the alert went out and 123 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: 3961 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 3.7
Supercell composite: 15.9

Open this sounding in Storm Lab

The text

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

684 
WUUS53 KSGF 230149
SVRSGF
MOC153-230230-
/O.NEW.KSGF.SV.W.0206.110523T0149Z-110523T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
849 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN OZARK COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 930 PM CDT.

* AT 845 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR PONTIAC...OR 29 MILES SOUTH OF AVA...
  MOVING EAST AT 45 MPH. THIS STORM IS CAPABLE OF PRODUCING NICKEL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IMPACTED INCLUDE BAKERSFIELD...ISABELLA...PONTIAC...
  SUNDOWN...THEODOSIA AND UDALL.

A TORNADO WARNING ALSO REMAINS IN EFFECT UNTIL 9 PM FOR THE NORTHERN 
TWO THIRDS OF OZARK COUNTY. WHILE NOT IMMEDIATELY EVIDENT...A 
TORNADO MAY DEVELOP IN THE FAR SOUTHERN PORTION OF OZARK COUNTY AS 
WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT MONDAY MORNING FOR
SOUTHERN MISSOURI.

&&

LAT...LON 3650 9277 3659 9270 3654 9212 3650 9213
TIME...MOT...LOC 0148Z 272DEG 40KT 3653 9255
WIND...HAIL 60MPH 0.88IN

$$

RUNNELS

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 May 22, 6:38 PM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, May 22, 6:38 PM CDT, 2 hours 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
638 PM CDT SUN MAY 22 2011

...MESOSCALE CONVECTIVE DISCUSSION...

.DISCUSSION...

2330Z...TORNADIC STORM WHICH PUSHED THROUGH JOPLIN EARLIER IS
BEGINNING TO RECYCLE BACK UP AND WAS NOW PRODUCING A TORNADO NEAR
THE TOWN OF WENTWORTH IN SOUTHWEST LAWRENCE COUNTY. ENVIRONMENT
REMAINS RIPE FOR CONTINUED LARGE HAIL AND TORNADIC DEVELOPMENT AS
THESE STORMS SHIFT EAST ACROSS SOUTHWEST MISSOURI WITH 0-1KM SHEAR
VALUES OF 30-35KTS OF SHEAR AND SURFACE BASED CAPES OF
3000-4000J/KG.

CAP HAS BEEN BROKEN IN NORTHEAST OKLAHOMA AS WELL AND STORMS
ALREADY STARTING TO SHOW ROTATION. THESE STORMS WILL ALSO LIKELY
HEAD INTO SOUTHWEST MISSOURI WITH THE POTENTIAL OF LARGE HAIL AND
DAMAGING WINDS WITH THESE STORMS AS WELL.

LINDENBERG

&&

.AVIATION...

FOR THE 00Z TAFS...TORNADIC SUPERCELL HAS PUSHED THROUGH JOPLIN
WITHIN THE PAST HOUR AND CLUSTER OF CELLS CONTINUE TO PUSH EAST
TOWARDS SPRINGFIELD. CURRENTLY HAVE THE TSRA MOVING INTO SGF BY
00-01Z. CURRENT TRACK OF CIRCULATION WILL TAKE IT SOUTH OF SGF.
CLUSTER OF THUNDERSTORMS SHOULD PUSH EAST OF THE TAF AREAS BY 03-04Z.

LINDENBERG

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

Hazardous weather outlook, May 22, 7:51 PM CDT, 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
751 PM CDT SUN MAY 22 2011

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-240100-
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-
751 PM CDT SUN MAY 22 2011

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

.DAY ONE...TONIGHT.

THE HAZARDOUS WEATHER RISK LEVEL IS...SIGNIFICANT.

WEATHER HAZARDS EXPECTED...

  ELEVATED TORNADO RISK.
  SIGNIFICANT HAIL RISK.
  ELEVATED THUNDERSTORM WIND DAMAGE RISK.
  LIMITED FLOODING RISK.
  LIMITED NON THUNDERSTORM WIND RISK.
  ELEVATED LIGHTNING RISK.

DISCUSSION...

TORNADIC SUPERCELLS CONTINUE TO DEVELOP AND PUSH EAST ACROSS
SOUTHWEST MISSOURI THIS EVENING. THE ENVIRONMENT REMAINS FAVORABLE
OVER THE NEXT FEW HOURS ALONG THE MISSOURI ARKANSAS BORDER FOR
LARGE HAIL AND TORNADOES TO DEVELOP. THE MOST FAVORABLE AREAS OF
SEVERE WEATHER THE REST OF THE EVENING WILL BE SOUTH AND EAST OF A
JOPLIN TO SPRINGFIELD TO ROLLA LINE.

IN ADDITION TO THE SEVERE WEATHER THREAT...LOCALIZED FLASH
FLOODING WILL BE POSSIBLE FOR ANY LOCATION THAT EXPERIENCES
MULTIPLE ROUNDS OF THUNDERSTORMS IN A SHORT PERIOD OF TIME. IT
APPEARS THAT THE HEAVIEST RAINFALL WILL AFFECT LOCATIONS ALONG THE
MISSOURI ARKANSAS BORDER WHERE SEVERAL INCHES OF RAINFALL MAY OCCUR.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE EACH DAY THROUGH
THURSDAY. THERE WILL BE A THREAT OF STRONG TO SEVERE STORMS MONDAY
THROUGH WEDNESDAY...CONDITIONAL ON THE DEVELOPMENT OF SUFFICIENT
INSTABILITY. HAIL AND STRAIGHT LINE WINDS APPEAR TO BE THE PRIMARY
THREATS WITH ANY STRONG STORMS AT THIS TIME.

DAILY CHANCES FOR THUNDERSTORMS WILL RESULT IN A RISK FOR FLASH
FLOODING...AS WELL AS RISES ON AREA RIVERS. FLOODING POTENTIAL
WILL BE MAXIMIZED FOR THOSE LOCATIONS THAT EXPERIENCE MULTIPLE
ROUNDS OF THUNDERSTORMS IN A SHORT PERIOD OF TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS WILL BE NEEDED ALONG THE MISSOURI ARKANSAS BORDER THROUGH
THE LATE EVENING.

&&

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)

LINDENBERG

In the hours before

Local storm report, May 22, 7:40 PM CDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
740 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     TORNADO          5 WSW LANAGAN           36.58N 94.53W
05/22/2011                   MCDONALD           MO   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTS TORNADO ON THE GROUND NEAR HWY
            43 AND HWY O. INJURIES HAVE BEEN REPORTED AT A DAMAGED
            HOME ON STATELINE JUST NORTH OF SOUTHWEST CITY

&&

RUNNELS

Local storm report, May 22, 7:55 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
755 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0721 PM     TSTM WND DMG     2 N GALENA              37.10N 94.64W
05/22/2011                   CHEROKEE           KS   PUBLIC

            TRAILER BLOWN ON TO HWY AA AND CAMP CLACK RD NORTH OF
            GALENA. POSSIBLE TORNADO DAMAGE.

&&

MGRIFFIN

Local storm report, May 22, 8:16 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
816 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0755 PM     TSTM WND DMG     10 N ROGERSVILLE        37.26N 93.06W
05/22/2011                   WEBSTER            MO   PUBLIC

            NUMEROUS TREES DOWN 10 MILES NORTH OF ROGERVILLES AND
            6805 HWY KK.

&&

MGRIFFIN

Local storm report, May 22, 8:20 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
820 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 PM     HAIL             NOEL                    36.55N 94.48W
05/22/2011  M1.00 INCH       MCDONALD           MO   EMERGENCY MNGR

&&

MGRIFFIN

Local storm report, May 22, 8:25 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
825 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0825 PM     HAIL             NOEL                    36.55N 94.48W
05/22/2011  M2.75 INCH       MCDONALD           MO   EMERGENCY MNGR

&&

MGRIFFIN

Local storm report, May 22, 8:48 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
848 PM CDT SUN MAY 22 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0847 PM     HAIL             3 NNE SOUTH WEST CITY   36.55N 94.59W
05/22/2011  M1.75 INCH       MCDONALD           MO   EMERGENCY MNGR

            HWY 43 ...3 MILES NORTH OF SOUTHWEST CITY.

&&

MGRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 7:01 PM CDT	Tornado Warning	SGF	McDonald	44 min
May 22, 7:06 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald, Newton	54 min
May 22, 7:08 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Miller, Morgan	67 min
May 22, 7:10 PM CDT	Flash Flood Warning	SGF	Barry, Christian, Lawrence, McDonald, Newton, Stone	6 hr
May 22, 7:28 PM CDT	Tornado Warning	SGF	Christian, Taney	47 min
May 22, 7:38 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	52 min
May 22, 7:41 PM CDT	Tornado Warning	SGF	McDonald	49 min
May 22, 7:46 PM CDT	Tornado Warning	SGF	McDonald	44 min
May 22, 8:02 PM CDT	Tornado Warning	SGF	Taney	28 min
May 22, 8:05 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Wright	40 min
May 22, 8:18 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	27 min
May 22, 8:24 PM CDT	Tornado Warning	SGF	Ozark	36 min
May 22, 8:28 PM CDT	Tornado Warning	SGF	McDonald	47 min
May 22, 8:46 PM CDT	Flash Flood Warning	SGF	Ozark, Taney	6 hr
May 22, 8:57 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	63 min
May 22, 9:01 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	44 min
May 22, 9:11 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Douglas, Howell, Oregon, Shannon, Texas	64 min
May 22, 9:15 PM CDT	Tornado Warning	SGF	Douglas, Howell, Oregon, Ozark	30 min
May 22, 9:24 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Ozark	51 min
May 22, 9:57 PM CDT	Special Weather Statement	SGF	McDonald, Newton	33 min
May 22, 10:09 PM CDT	Special Weather Statement	SGF	Barry	36 min
May 22, 10:10 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	35 min
May 22, 10:55 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	65 min
May 22, 11:45 PM CDT	River Flood Warning	SGF	McDonald	57 hr
May 22, 11:54 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	66 min
May 23, 12:50 AM CDT	Flash Flood Warning	SGF	Barry, McDonald, Newton, Stone	9 hr
May 23, 1:42 AM CDT	Special Weather Statement	SGF	Stone	48 min
May 23, 3:36 AM CDT	Flash Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 28 more	63 hr
May 23, 7:47 AM CDT	Special Weather Statement	SGF	Jasper	43 min
May 23, 8:15 AM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	45 min
May 23, 8:35 AM CDT	Special Weather Statement	SGF	Vernon	40 min
May 23, 8:51 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, St. Clair, Vernon	39 min
May 23, 8:56 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Jasper, Lawrence, McDonald, Newton	49 min
May 23, 9:17 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Hickory, Polk, St. Clair	31 min
May 23, 9:38 AM CDT	Flash Flood Warning	SGF	Barry, Jasper, Lawrence, McDonald, Newton, Stone	8 hr
May 23, 9:43 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Hickory, Polk	18 min
May 23, 9:55 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory, Laclede	36 min
May 23, 10:29 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dent, Laclede, Maries, Miller, Morgan and 3 more	45 min
May 23, 10:53 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Maries, Miller, Phelps, Pulaski	44 min
May 23, 12:59 PM CDT	Special Weather Statement	SGF	Howell, Shannon	61 min
May 23, 1:09 PM CDT	Tornado Warning	SGF	Howell, Oregon, Ozark	66 min
May 23, 1:43 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	20 min
May 23, 1:47 PM CDT	Tornado Warning	SGF	Howell, Oregon, Shannon	43 min
May 23, 1:58 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	47 min
May 23, 2:11 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	33 min
May 23, 2:28 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	62 min
May 23, 3:26 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Barton, Dade, Jasper, Lawrence, Newton	47 min
May 23, 4:02 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper	41 min
May 23, 4:16 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	43 min
May 23, 4:28 PM CDT	River Flood Warning	SGF	Shannon	16 hr
May 23, 4:28 PM CDT	River Flood Warning	SGF	Stone	17 hr
May 23, 5:12 PM CDT	Special Weather Statement	SGF	Jasper	33 min
May 23, 5:51 PM CDT	Flash Flood Warning	SGF	Barry, Jasper, McDonald, Newton	16 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2011 Every severe thunderstorm warning 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.