Alert archive / Missouri / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 61, NWS Springfield, MO

May 16, 2018Christian County, Greene County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 16, 2018, 6:39 PM CDT for Christian County, Greene County, Missouri. It was in force for 51 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 16, 2018, 6:39 PM CDT (23:39 UTC)
Expired: May 16, 2018, 7:30 PM CDT
In force: 51 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Christian County, MO, Greene County, MO

The radar

The Springfield radar (KSGF), 17 km from the middle of the area, began a volume at 23:39 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 16, 6:39 PM CDT	HAIL 1	1 Wnw Galloway, MO	PEA TO QUARTER SIZE HAIL REPORTED NEAR PRIMROSE AND JEFFERSON BY LOCAL RADIO MEDIA.

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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.7 hours before the alert went out and 51 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: 1078 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 668 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

796 
WUUS53 KSGF 162339
SVRSGF
MOC043-077-170030-
/O.NEW.KSGF.SV.W.0061.180516T2339Z-180517T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
639 PM CDT WED MAY 16 2018

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  North central Christian County in southwestern Missouri...
  South central Greene County in southwestern Missouri...

* Until 730 PM CDT

* At 638 PM CDT, a severe thunderstorm was located near Battlefield,
  moving southwest at 5 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...
  Southern Springfield...           Nixa...
  Ozark...                          Battlefield...
  Fremont Hills...                  Brookline...
  Galloway...                       

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3717 9322 3703 9321 3703 9340 3717 9340
TIME...MOT...LOC 2338Z 028DEG 5KT 3711 9332 

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

Foster

2 follow-up statements

305 
WWUS53 KSGF 170005
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
705 PM CDT WED MAY 16 2018

MOC043-077-170030-
/O.CON.KSGF.SV.W.0061.000000T0000Z-180517T0030Z/
Christian MO-Greene MO-
705 PM CDT WED MAY 16 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTH CENTRAL CHRISTIAN AND SOUTH CENTRAL GREENE COUNTIES...

At 705 PM CDT, a severe thunderstorm was located near Battlefield,
moving southwest at 5 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...
Southern Springfield...           Nixa...
Battlefield...                    Fremont Hills...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3715 9324 3703 9325 3703 9340 3715 9339
TIME...MOT...LOC 0005Z 028DEG 5KT 3708 9334 

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

Foster

372 
WWUS53 KSGF 170026
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
726 PM CDT WED MAY 16 2018

MOC077-170034-
/O.CAN.KSGF.SV.W.0061.000000T0000Z-180517T0030Z/
Greene MO-
726 PM CDT WED MAY 16 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL GREENE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved into 
Christian County where a warning remains in effect.  Locally heavy 
rainfall will continue.

LAT...LON 3710 9339 3710 9325 3709 9324 3703 9325
      3703 9340
TIME...MOT...LOC 0024Z 028DEG 5KT 3706 9336 

$$

MOC043-170030-
/O.CON.KSGF.SV.W.0061.000000T0000Z-180517T0030Z/
Christian MO-
726 PM CDT WED MAY 16 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTH CENTRAL CHRISTIAN COUNTY...

At 724 PM CDT, a severe thunderstorm was located near Nixa, moving
southwest at 5 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...
Nixa...                           Fremont Hills...

Another severe thunderstorm warning will remain in effect for 
northwestern Christian and northeastern Stone Counties until 8 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3710 9339 3710 9325 3709 9324 3703 9325
      3703 9340
TIME...MOT...LOC 0024Z 028DEG 5KT 3706 9336 

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

Foster

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 16, 2:10 PM CDT, 4 hours 29 minutes earlier.

Area forecast discussion, May 16, 2:10 PM CDT, 4 hours 29 minutes before

Area Forecast Discussion
National Weather Service Springfield MO
210 PM CDT Wed May 16 2018

.SHORT TERM...(This evening through Thursday)
Issued at 110 PM CDT Wed May 16 2018

A couple of small scale upper level disturbances: 1) Well
pronounced mcv over ne OK will drift ese and for the most part
convection with this system will stay near or just south of our
border (best chances in the near term are the far sw corner of
MO). Bears some watching with the HRRR keeping persistent weak
convection along the MO/AR border tonight. 2) Over far se NEB
drifting to the southeast moving into central and east central MO
Thu. This may be more of a player for our weather for Thu during
the peak heating part of the day afternoon/evening with the
chances for scattered showers/thunderstorms favoring the eastern
cwfa.

In the meantime for the the rest of today, some isolated pulse
convection will be possible but given the relatively low
pwats/moisture aloft we are not expecting severe storms.

.LONG TERM...(Friday through Wednesday)
Issued at 110 PM CDT Wed May 16 2018

Friday: The shortwave over MO Thu will exit off to the east with
weak 500mb height rises through the day. Can't rule out some
isolated convection given the instability, but the best chance for
any convection will likely be over the far sw cwfa where overall
moisture will be higher with pwats just under 1.5 inches.

Saturday-Sunday: The upper level shortwave ridge will shift east
of the area but guidance is having trouble resolving small scale
features and the placement of a sfc cold front over/near the
area. The ECMWF moves a sfc front through Sat night/early Sunday
while the GFS holds this front back to the west. In general the
pattern favors an uptick in rain chances either way, but don't
have a lot confidence in timing/placement of convection.

Monday-Wednesday: The upper ridge is suppressed to the south with
modest westerlies aloft. The GFS is far more bullish with precip
versus the ECMWF with more moisture in place. In general, our late
Spring type pattern looks to continue.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 1213 PM CDT Wed May 16 2018

KSGF/KJLN/KBBG tafs: A weak slow moving upper level disturbance
will kick off isolated to scattered showers and thunderstorms in
the near term. Some of this may persist well past 00z. Outside of
thunderstorms, some cumulus vfr or mvfr ceilings will be possible
over the next few hours with light winds.

&&

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

SHORT TERM...DSA
LONG TERM...DSA
AVIATION...DSA

Hazardous weather outlook, May 16, 2:45 PM CDT, 3 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
245 PM CDT Wed May 16 2018

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-171945-
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-
245 PM CDT Wed May 16 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 lightning risk.

DISCUSSION...

Isolated thunderstorms are expected this afternoon and tonight.
The overall best chances this afternoon will be over far
southwest Missouri.  Cloud to ground lightning will be the main
potential hazard with these storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Periodic thunderstorm chances will occur into next week.
Organized severe weather is not expected, although some storms may
produce locally gusty winds on Friday over far southwest
Missouri.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

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

DSA

In the hours before

Special weather statement, May 16, 4:12 PM CDT, 2 hours 27 minutes before

Special Weather Statement
National Weather Service Springfield MO
412 PM CDT WED MAY 16 2018

MOZ104-162200-
Taney MO-
412 PM CDT WED MAY 16 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TANEY COUNTY UNTIL
500 PM CDT...

At 412 PM CDT, Doppler radar was tracking a strong thunderstorm near
Omaha, or 9 miles south of Branson. This storm was nearly stationary.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Ridgedale...

LAT...LON 3657 9327 3657 9311 3650 9311 3650 9327
TIME...MOT...LOC 2112Z 031DEG 4KT 3650 9321

Foster

Special weather statement, May 16, 6:20 PM CDT, 19 minutes before

Special Weather Statement
National Weather Service Springfield MO
620 PM CDT WED MAY 16 2018

MOZ090-170000-
Greene MO-
620 PM CDT WED MAY 16 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL GREENE COUNTY UNTIL
700 PM CDT...

At 620 PM CDT, Doppler radar was tracking a strong thunderstorm over
southern Springfield. This storm was nearly stationary.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Springfield...                    Battlefield...
Galloway...

LAT...LON 3710 9324 3710 9336 3720 9334 3720 9320
      3709 9320
TIME...MOT...LOC 2320Z 044DEG 4KT 3714 9329

Foster

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 4:12 PM CDT	Special Weather Statement	SGF	Taney	48 min
May 16, 6:20 PM CDT	Special Weather Statement	SGF	Greene	40 min
May 16, 6:41 PM CDT	Areal Flood Advisory	SGF	Christian, Greene	3 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.