Alert archive / Missouri / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 84, NWS Springfield, MO

May 19, 2018Howell County, Oregon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 19, 2018, 3:47 PM CDT for Howell County, Oregon County, Missouri. It was in force for 32 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 19, 2018, 3:47 PM CDT (20:47 UTC)
Expired: May 19, 2018, 4:19 PM CDT
In force: 32 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Howell County, MO, Oregon County, MO

The radar

The Springfield radar (KSGF), 170 km from the middle of the area, began a volume at 20:50 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

Time	Report	Where	Remark
May 19, 4:00 PM CDT	HAIL 1	5 Ene West Plains, MO	SOCIAL MEDIA POST OF QUARTER SIZE HAIL EAST OF WEST PLAINS.

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 13 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
May 19, 1:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.8 hours before the alert went out and 199 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: 1840 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

819 
WUUS53 KSGF 192047
SVRSGF
MOC091-149-192145-
/O.NEW.KSGF.SV.W.0084.180519T2047Z-180519T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
347 PM CDT SAT MAY 19 2018

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southeastern Howell County in south central Missouri...
  Oregon County in south central Missouri...

* Until 445 PM CDT

* At 346 PM CDT, a severe thunderstorm was located near West Plains,
  moving east at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Emergency management. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  West Plains...                    Alton...
  Pomona...                         Koshkonong...
  Brandsville...                    Thomasville...
  Peace Valley...                   Rover...
  White Church...                   Wilderness...
  Couch...                          Greer...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3663 9192 3676 9197 3689 9191 3690 9166
      3689 9166 3689 9122 3683 9122 3682 9111
      3651 9113
TIME...MOT...LOC 2046Z 271DEG 19KT 3676 9174 

HAIL...1.00IN
WIND...60MPH
 
$$

Schaumann

3 follow-up statements

523 
WWUS53 KSGF 192053
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
353 PM CDT SAT MAY 19 2018

MOC091-149-192145-
/O.CON.KSGF.SV.W.0084.000000T0000Z-180519T2145Z/
Howell MO-Oregon MO-
353 PM CDT SAT MAY 19 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR EAST CENTRAL HOWELL AND OREGON COUNTIES...

At 353 PM CDT, a severe thunderstorm was located 7 miles east of West
Plains, moving east at 15 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
West Plains...                    Alton...
Koshkonong...                     Brandsville...
Thomasville...                    Peace Valley...
Rover...                          White Church...
Wilderness...                     Couch...
Greer...                          

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3664 9186 3676 9192 3689 9185 3689 9122
      3683 9122 3682 9111 3651 9113
TIME...MOT...LOC 2053Z 271DEG 13KT 3676 9172 

HAIL...1.75IN
WIND...60MPH
 
$$

Schaumann

301 
WWUS53 KSGF 192110
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
410 PM CDT SAT MAY 19 2018

MOC091-149-192145-
/O.CON.KSGF.SV.W.0084.000000T0000Z-180519T2145Z/
Howell MO-Oregon MO-
410 PM CDT SAT MAY 19 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR EAST CENTRAL HOWELL AND OREGON COUNTIES...

At 409 PM CDT, a severe thunderstorm was located 12 miles west of
Alton, or 13 miles east of West Plains, moving east at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Alton...                          Brandsville...
Thomasville...                    Rover...
Wilderness...                     Couch...
Greer...                          

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3662 9169 3675 9179 3689 9168 3689 9122
      3683 9122 3682 9111 3653 9113
TIME...MOT...LOC 2109Z 271DEG 19KT 3676 9161 

HAIL...1.00IN
WIND...60MPH
 
$$

Hatch

862 
WWUS53 KSGF 192119
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
419 PM CDT SAT MAY 19 2018

MOC091-149-192129-
/O.CAN.KSGF.SV.W.0084.000000T0000Z-180519T2145Z/
Howell MO-Oregon MO-
419 PM CDT SAT MAY 19 2018

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HOWELL AND OREGON
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 800 PM CDT for
south central Missouri.

LAT...LON 3662 9169 3675 9179 3689 9168 3689 9122
      3683 9122 3682 9111 3653 9113
TIME...MOT...LOC 2118Z 271DEG 19KT 3676 9154 

$$

Hatch

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 19, 3:03 PM CDT, 44 minutes earlier.

Area forecast discussion, May 19, 3:03 PM CDT, 44 minutes before

Area Forecast Discussion
National Weather Service Springfield MO
303 PM CDT Sat May 19 2018

.SHORT TERM...(This evening through Sunday)
Issued at 227 PM CDT Sat May 19 2018

Strong to severe convection continues in the eastern CWA
primarily along and north of a surface warm front and ahead of a
subtle H5 wave currently moving through the area. Meanwhile...boundary
interactions with the surface front is setting off another round
of convection over north central Oklahoma.

As the larger upper level wave moves out of eastern Colorado
toward the Upper Mississippi Valley...low pressure will develop
and move along the front. This will induce more convection along
the front that will move up and into the area during the overnight
hours. Primary threat with these storms will be wind and
hail...but an isolated tornado cannot be ruled out especially over
extreme southeast Kansas. This convection will continue into
early Sunday.

.LONG TERM...(Sunday Night through Saturday)
Issued at 227 PM CDT Sat May 19 2018

The quasi-stationary surface front meanders back and forth across
central Missouri through most of the week. This will keep slight
chance to chance PoPs in the forecast. In the upper levels..a
trough is situated over the southwestern US with a ridge over the
Central States. As small short waves move out of the southwest
trough and up and over the ridge...rain chances over the area
will increase.

Not too much variability in day-to-day temperatures with highs
generally in the low to mid 80s and lows in the low to mid
60s...or about 5-10 degrees above normal.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1246 PM CDT Sat May 19 2018

Convection ongoing ahead of a warm front currently situated along
the MO-AR border into northeast OK. Isolated to widely scattered
convection will occur across the area just ahead of the front this
afternoon.

Convection will once again be possible during the overnight
hours...but will be widely scattered in nature once again.
Conditions will be VFR outside of convective areas to MFVR for
ceilings and visibilities within the stronger storms.

&&

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

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

Hazardous weather outlook, May 19, 3:17 PM CDT, 30 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
317 PM CDT Sat May 19 2018

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-202030-
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-
317 PM CDT Sat May 19 2018

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

DISCUSSION...

  A line of strong to severe storms will continue to track east
  across far south central Missouri late this afternoon. The
  strongest storms will be capable of producing hail to the size
  of ping pong balls and damaging winds gusts over 60 mph. This
  activity will spread east of the area by early this evening.

  Thunderstorms are currently developing across north central
  Oklahoma this afternoon. This activity will track northeast
  towards extreme southeastern Kansas and far western Missouri
  this evening. Hail to the size of golf balls and damaging wind
  gusts will be the main risk. An isolated tornado may also be
  possible. Frequent cloud to ground lightning strikes and
  locally heavy rainfall will also occur with this activity.

  Additional showers and storms may then develop and spread into
  the area from the west later tonight into early Sunday morning.
  Cloud to ground lightning and locally heavy rainfall will be
  the main risk, but a few of the stronger storms could be
  capable of penny size hail and winds in excess of 45 mph.

  With the multiple rounds of storms possible today and tonight,
  there will also be the potential for localized minor flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

  Additional thunderstorm are possible on Sunday. A few storms
  may become severe across central Missouri if enough instability
  develops.

Additional thunderstorm chances will occur next week.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation may be needed this afternoon across south
  central Missouri, then this evening across extreme southeastern
  Kansas and western Missouri.

&&

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

Wise

In the hours before

Local storm report, May 19, 3:00 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
300 PM CDT SAT MAY 19 2018

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

0245 PM     HAIL             DORA                    36.78N 92.22W
05/19/2018  E1.00 INCH       OZARK              MO   EMERGENCY MNGR

&&

FEH

Local storm report, May 19, 3:02 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
302 PM CDT SAT MAY 19 2018

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

0245 PM     HAIL             2 N DORA                36.80N 92.22W
05/19/2018  E1.00 INCH       DOUGLAS            MO   FIRE DEPT/RESCUE

            CORRECTS PREVIOUS HAIL REPORT FROM 2 N DORA.

&&

FEH

Local storm report, May 19, 3:10 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
310 PM CDT SAT MAY 19 2018

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

0310 PM     HAIL             2 NE SILOAM SPRINGS     36.81N 92.05W
05/19/2018  E1.00 INCH       HOWELL             MO   EMERGENCY MNGR

&&

FEH

Local storm report, May 19, 3:16 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
316 PM CDT SAT MAY 19 2018

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

0315 PM     HAIL             4 ESE SILOAM SPRINGS    36.78N 92.01W
05/19/2018  E1.25 INCH       HOWELL             MO   EMERGENCY MNGR

&&

FEH

Local storm report, May 19, 3:23 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
323 PM CDT SAT MAY 19 2018

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

0250 PM     TSTM WND DMG     SALEM                   37.64N 91.54W
05/19/2018                   DENT               MO   LAW ENFORCEMENT

            POWER POLE WAS SNAPPED AND LINES DOWN ON THE
            WEST SIDE OF TOWN.

&&

FEH

Local storm report, May 19, 3:35 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
335 PM CDT SAT MAY 19 2018

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

0335 PM     HAIL             2 NW WEST PLAINS        36.75N 91.88W
05/19/2018  E0.75 INCH       HOWELL             MO   EMERGENCY MNGR

&&

FEH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 3:42 AM CDT	Dense Fog Advisory	SGF	Maries, Miller, Morgan, Phelps	5 hr
May 19, 7:00 AM CDT	Special Weather Statement	SGF	Vernon	30 min
May 19, 7:26 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk	49 min
May 19, 7:46 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	44 min
May 19, 7:48 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	42 min
May 19, 8:34 AM CDT	Special Weather Statement	SGF	Laclede	41 min
May 19, 9:01 AM CDT	Severe Thunderstorm Warning	SGF	Laclede, Wright	59 min
May 19, 9:51 AM CDT	Severe Thunderstorm Warning	SGF	Barton	54 min
May 19, 9:55 AM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	65 min
May 19, 10:45 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, Jasper	60 min
May 19, 11:12 AM CDT	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	63 min
May 19, 11:33 AM CDT	Special Weather Statement	SGF	Benton, Camden, Dallas, Hickory, Morgan, Polk	42 min
May 19, 11:50 AM CDT	Severe Thunderstorm Warning	SGF	Polk	40 min
May 19, 12:25 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Maries, Miller, Pulaski	65 min
May 19, 12:33 PM CDT	Special Weather Statement	SGF	Dallas, Greene, Laclede, Pulaski, Webster	42 min
May 19, 12:34 PM CDT	Special Weather Statement	SGF	Oregon	41 min
May 19, 12:42 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	63 min
May 19, 12:57 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Greene, Webster	63 min
May 19, 12:58 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	36 min
May 19, 1:02 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	58 min
May 19, 1:33 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Wright	57 min
May 19, 1:44 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark	61 min
May 19, 2:07 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Texas	53 min
May 19, 2:24 PM CDT	Severe Thunderstorm Warning	SGF	Shannon, Texas	66 min
May 19, 2:40 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	65 min
May 19, 3:16 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	32 min
May 19, 4:39 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper	51 min
May 19, 4:46 PM CDT	Severe Thunderstorm Warning	SGF	St. Clair	44 min
May 19, 4:48 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	42 min
May 19, 5:14 PM CDT	Tornado Warning	SGF	Barton, Vernon	31 min
May 19, 5:20 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, Jasper, Vernon	40 min
May 19, 5:27 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Lawrence, Newton	35 min
May 19, 5:48 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Camden, Morgan	57 min
May 19, 5:55 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	37 min
May 19, 6:00 PM CDT	Special Weather Statement	SGF	Dade, Dallas, Greene, Hickory, Polk	45 min
May 19, 6:23 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	33 min
May 19, 6:51 PM CDT	Special Weather Statement	SGF	Benton, Camden, Dallas, Laclede, Miller, Morgan and 1 more	39 min

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.