Alert archive / Missouri / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 33, NWS Springfield, MO

April 13, 2018Howell County, Oregon County, Shannon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 13, 2018, 9:30 PM CDT for Howell County, Oregon County, Shannon County, Missouri. It was in force for 60 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: Apr 13, 2018, 9:30 PM CDT (02:30 UTC)
Expired: Apr 13, 2018, 10:30 PM CDT
In force: 60 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Howell County, MO, Oregon County, MO, Shannon County, MO

The radar

The Springfield radar (KSGF), 172 km from the middle of the area, began a volume at 02:31 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

Time	Report	Where	Remark
Apr 13, 9:30 PM CDT	TSTM WND DMG	4 Se West Plains, MO	A BARN WAS BLOWN DOWN AND TREES WERE DAMAGED. WIND SPEEDS WERE ESTIMATED TO BE AROUND 80 MPH. CORRECTED TIME OF OCCURRENCE.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 0 minutes after it went out.

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
Apr 13, 5:27 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.5 hours before the alert went out and 203 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: 505 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 560 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted.

430 
WUUS53 KSGF 140230
SVRSGF
MOC091-149-203-140330-
/O.NEW.KSGF.SV.W.0033.180414T0230Z-180414T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
930 PM CDT FRI APR 13 2018

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southwestern Shannon County in south central Missouri...
  Eastern Howell County in south central Missouri...
  Oregon County in south central Missouri...

* Until 1030 PM CDT

* At 930 PM CDT, severe thunderstorms were located along a line
  extending from near Mountain View to near West Plains to 6 miles
  northeast of Sturkie, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  West Plains...                    Grand Gulf State Park...
  Mountain View...                  Thayer...
  Winona...                         Alton...
  Birch Tree...                     Koshkonong...
  Brandsville...                    Montier...
  Thomasville...                    Peace Valley...
  Lanton...                         Teresita...
  Myrtle...                         Wilderness...
  Couch...                          Rover...
  White Church...                   Greer...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 100 AM CDT for south central
Missouri.

LAT...LON 3651 9198 3676 9194 3696 9183 3705 9171
      3705 9166 3710 9165 3708 9122 3706 9121
      3683 9123 3682 9111 3678 9112 3650 9113
TIME...MOT...LOC 0230Z 213DEG 32KT 3692 9168 3675 9179 3653 9180 

HAIL...<.75IN
WIND...60MPH
 
$$

Burchfield

2 follow-up statements

375 
WWUS53 KSGF 140251
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
951 PM CDT FRI APR 13 2018

MOC091-140300-
/O.CAN.KSGF.SV.W.0033.000000T0000Z-180414T0330Z/
Howell MO-
951 PM CDT FRI APR 13 2018

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HOWELL COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 100 AM CDT for south central
Missouri.

LAT...LON 3651 9166 3705 9166 3710 9165 3708 9122
      3706 9121 3683 9123 3682 9111 3678 9112
      3650 9113
TIME...MOT...LOC 0250Z 209DEG 32KT 3707 9156 3690 9163 3652 9161 

$$

MOC149-203-140330-
/O.CON.KSGF.SV.W.0033.000000T0000Z-180414T0330Z/
Shannon MO-Oregon MO-
951 PM CDT FRI APR 13 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHWESTERN SHANNON AND OREGON COUNTIES...

At 950 PM CDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Birch Tree to 7 miles southeast
of Mountain View to near Thayer, moving northeast at 35 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Grand Gulf State Park...          Thayer...
Winona...                         Alton...
Birch Tree...                     Koshkonong...
Montier...                        Thomasville...
Teresita...                       Myrtle...
Wilderness...                     Couch...
Rover...                          Greer...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 100 AM CDT for south central
Missouri.

LAT...LON 3651 9166 3705 9166 3710 9165 3708 9122
      3706 9121 3683 9123 3682 9111 3678 9112
      3650 9113
TIME...MOT...LOC 0250Z 209DEG 32KT 3707 9156 3690 9163 3652 9161 

HAIL...<.75IN
WIND...60MPH
 
$$

Burchfield

838 
WWUS53 KSGF 140330
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1030 PM CDT FRI APR 13 2018

MOC149-203-140340-
/O.EXP.KSGF.SV.W.0033.000000T0000Z-180414T0330Z/
Shannon MO-Oregon MO-
1030 PM CDT FRI APR 13 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SHANNON AND
OREGON COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A tornado watch remains in effect until 100 AM CDT for south central
Missouri.

LAT...LON 3651 9166 3705 9166 3710 9165 3708 9122
      3706 9121 3683 9123 3682 9111 3678 9112
      3650 9113
TIME...MOT...LOC 0330Z 215DEG 30KT 3696 9122 3677 9119 3653 9133 

$$

Burchfield

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 Apr 13, 6:20 PM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Apr 13, 6:20 PM CDT, 3 hours 10 minutes before

Area Forecast Discussion
National Weather Service Springfield MO
620 PM CDT Fri Apr 13 2018

.SHORT TERM...(This evening through Saturday Night)
Issued at 234 PM CDT Fri Apr 13 2018

Thunderstorms have begun to fire along a dryline situated over
eastern Kansas which is in advance of an upper level system
currently moving into western Kansas. Ahead of the front...strong
southerly winds are bringing in ample quantities of Gulf moisture
and associated instability. Ahead of the dryline within the warm
sector...there is still a bit of a cap...however...the 18z KSGF
sounding has lost about 6-7 C off of the 12z sounding.

Right now...large hail and wind will be the primary threat
although given the amounts of instability and shear...an isolated
tornado can not be ruled out either. Storms should be entering the
CWA by late afternoon but models are hinting that severe storms
could become more scattered after sunset.

The front and rain push through the area overnight with winds
veering around to a more westerly direction. With the frontal
passage...temperatures will be much cooler on Saturday with highs
generally in the 50s. As the upper low pushes through Saturday
night...could see some residual moisture wrap around in the cold
air. With low temperatures in the low 30s overnight Saturday...might
see a very light wintry mix during the overnight hours.

.LONG TERM...(Sunday through Friday)
Issued at 234 PM CDT Fri Apr 13 2018

As this system exits the region on Sunday...upper level ridging
begins to build back over the area. Sunday will be the coldest day
of the period with highs not climbing out the 40s. Winds begin to
back around to the south on Monday which will signal the start of
the next warming trend. By Tuesday...highs should once again be
back into the 70s and then remain in the 60s the remainder of the
week. The next chance of rain approaches the area by Friday.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 610 PM CDT Fri Apr 13 2018

An area of strong to occasionally severe storms currently moving
through the terminal sites. Should be moving through the KJLN
terminal in the next hour or two...but may persist in the KBBG
area until 06z.

Once the dryline/front comes through...winds will veer to the
southwest but become lighter. Expect clouds to lower and winds to
pick up after sunrise on Saturday.

&&

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

SHORT TERM...Gaede
LONG TERM...Gaede
AVIATION...Gaede

Hazardous weather outlook, Apr 13, 7:48 PM CDT, 1 hour 42 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
748 PM CDT Fri Apr 13 2018

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-150100-
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-
748 PM CDT Fri Apr 13 2018

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Tonight.

Weather hazards expected...

  Limited tornado risk.
  Elevated hail risk.
  Limited thunderstorm wind damage risk.
  Limited flooding risk.
  Elevated lightning risk.
  Limited non thunderstorm wind risk.

DISCUSSION...

 Strong to severe thunderstorms will impact south central Missouri
 and the eastern Ozarks this evening. The more intense storms
 will be capable of producing large hail to the size of golf
 balls, damaging winds to 70 mph, and possibly an isolated
 tornado.

 Heavy rainfall could result in localized flooding in south
 central Missouri.

 The risk for severe storms has ended west of Highway 65.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

  Another freeze is possible Saturday night however chances are
  higher Sunday night.

  Gusty southwest winds of 30 mph will be possible over southeast
  Kansas and western Missouri on Tuesday.

.SPOTTER INFORMATION STATEMENT...

 Spotter activation may be needed this in south central Missouri
 east of Highway 65.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/sitrep

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Foster

In the hours before

Local storm report, Apr 13, 6:27 PM CDT, 3 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
627 PM CDT FRI APR 13 2018

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

0626 PM     HAIL             GOODHOPE                36.91N 92.80W
04/13/2018  E1.00 INCH       DOUGLAS            MO   AMATEUR RADIO

&&

MG

Local storm report, Apr 13, 6:34 PM CDT, 2 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
634 PM CDT FRI APR 13 2018

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

0549 PM     HAIL             4 ENE RIDGEDALE         36.53N 93.16W
04/13/2018  E1.75 INCH       TANEY              MO   PUBLIC

            PICTURE OF GOLFBALL SIZE HAIL NEAR HWY JJ
            AND PINETOP ROAD JUST EAST OF BRANSON
            AIRPORT.

&&

MG

Local storm report, Apr 13, 7:39 PM CDT, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
739 PM CDT FRI APR 13 2018

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

0556 PM     TSTM WND DMG     OZARK BEACH             36.66N 93.13W
04/13/2018                   TANEY              MO   AMATEUR RADIO

            3 FOOT DIAMETER TREES DOWN EMPIRE PARK
            POWERSITE.

&&

BURCHFIELD

Local storm report, Apr 13, 8:00 PM CDT, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
800 PM CDT FRI APR 13 2018

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

0715 PM     TSTM WND DMG     4 NNW NORWOOD           37.16N 92.44W
04/13/2018                   WRIGHT             MO   PUBLIC

            TREES DOWN, BARNS DESTROYED. THARP SCHOOL
            ROAD NORTH OF NORWOOD. HWY N EAST OF HWY E
            IS BLOCKED. SEARCH AND RESCUE ONGOING.
            POSSIBLE TORNADO PATH DAMAGE.

&&

MG

Local storm report, Apr 13, 8:05 PM CDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
805 PM CDT FRI APR 13 2018

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

0710 PM     TSTM WND DMG     4 WSW NORWOOD           37.09N 92.49W
04/13/2018                   WRIGHT             MO   PUBLIC

            DAMAGE REPORTED TO BUILDINGS AND TREES NEAR
            MACOMB MISSOURI BY PUBLIC AND SOCIAL MEDIA.
            POSSIBLE TORNADO DAMAGE.

&&

MG

Local storm report, Apr 13, 9:02 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
902 PM CDT FRI APR 13 2018

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

0848 PM     TSTM WND DMG     1 S SALEM               37.64N 91.54W
04/13/2018                   DENT               MO   EMERGENCY MNGR

            A COUPLE TREES AND POWER LINES DOWN IN
            SALEM.

&&

MG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 7:05 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	40 min
Apr 13, 7:09 PM CDT	Areal Flood Advisory	SGF	Christian, Douglas, Taney	6 hr
Apr 13, 7:09 PM CDT	Tornado Warning	SGF	Douglas, Wright	36 min
Apr 13, 7:29 PM CDT	Tornado Warning	SGF	Texas, Wright	31 min
Apr 13, 7:49 PM CDT	Flash Flood Warning	SGF	Douglas	4 hr
Apr 13, 7:50 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	40 min
Apr 13, 7:57 PM CDT	Tornado Warning	SGF	Texas	33 min
Apr 13, 8:26 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Texas	49 min
Apr 13, 8:36 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	54 min
Apr 13, 8:37 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	38 min
Apr 13, 8:40 PM CDT	Tornado Warning	SGF	Phelps	35 min
Apr 13, 8:49 PM CDT	Tornado Warning	SGF	Howell, Ozark	26 min
Apr 13, 9:38 PM CDT	Tornado Warning	SGF	Howell, Oregon, Shannon	37 min
Apr 13, 10:32 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	21 min
Apr 14, 3:04 AM CDT	Freeze Warning	SGF	Barry, Barton, Cedar, Christian, Dade, Dallas and 16 more	30 hr
Apr 14, 6:37 AM CDT	Areal Flood Advisory	SGF	Douglas, Texas, Webster, Wright	6 hr
Apr 14, 12:26 PM CDT	Areal Flood Advisory	SGF	Douglas, Texas, Wright	10 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2018 Every severe thunderstorm warning in 2018

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.