Severe Thunderstorm Warning 157, NWS Springfield, MO

079 
WWUS53 KSGF 292230
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
530 PM CDT SAT APR 29 2017

MOC149-203-292240-
/O.CAN.KSGF.SV.W.0157.000000T0000Z-170429T2245Z/
Shannon MO-Oregon MO-
530 PM CDT SAT APR 29 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SHANNON AND
NORTHEASTERN OREGON COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 3708 9109 3708 9122 3683 9123 3683 9118
      3678 9119 3691 9155 3742 9134 3741 9117
      3732 9118 3731 9116 3726 9116 3725 9112
      3720 9112 3720 9109 3716 9106
TIME...MOT...LOC 2229Z 202DEG 33KT 3715 9132 

$$

Wise

Area Forecast Discussion
National Weather Service Springfield MO
243 PM CDT Sat Apr 29 2017

.SYNOPSIS...
Issued at 242 PM CDT Sat Apr 29 2017

Serious flash flooding event ongoing across the parts of the area
early this afternoon with 3 flash flood emergencies ongoing and
flash flood warnings for a good portion of the southeast 2/3 of
the CWA.

Upper low was still over the 4 corners region with strong
diffluent flow across the southern and central plains. Strong
southerly low level jet of 40 to 50 kts continues to advect
copious amounts of moisture up and over a nearly stationary
boundary which was draped across southern Missouri, but was
showing some lifting to the north over south central Missouri,
where instability was rapidly increasing. Dewpoints south of the
front were in the low 70s. Shear remains favorable when combined
with the instability south of the front for all modes of severe
storms this afternoon and evening. Widespread PW values of 1.6 to
1.7 in. were located across the forecast area, so these
thunderstorms were very efficient rain producers.

Main focus will be with continued significant flooding as several
more waves of thunderstorms are expected through tonight and the
potential for severe storms south of the front, with all modes of
severe storms possible.

&&

.SHORT TERM...(This evening through Sunday)
Issued at 242 PM CDT Sat Apr 29 2017

Conditions have destabilized rather quickly south of the frontal
boundary over south central MO which has remained rain free for
much of the morning and early afternoon. Surface based CAPES have
surged into the 2500-3000 j/kg range as dewpoints have increased
from the low 60s to low 70s on the south side of the front. Have
around 30-40 kts of 0-6km shear and 35 to 40 kts of 0-1km low
level shear. These would indicate the potential of supercells this
afternoon and evening with all modes of severe storms, including
the potential of isolated tornadoes.

Short term convective models continue to show several waves of
thunderstorms moving through the area for the remainder of the
afternoon through Sunday morning which will add to the significant
flooding already going on. All of our forecast river points are in
flood forecast with most into moderate or major flood categories
and a few might go into record breaking territory. We are still
going with an additional 2 to near 4 inches of widespread rainfall
across the area before rain ends during the day Sunday.

The upper low should shift from the 4 corners region into central
KS by mid morning Sunday with the dry slot beginning to edge into
the western CWA. This should transition eastward during the day
with the bulk of the precipitation shifting east of the area by
midday. Could still have residual showers/light rain through the
afternoon Sunday.

.LONG TERM...(Sunday Night through Saturday)
Issued at 242 PM CDT Sat Apr 29 2017

With the large amplified ridge in place over the eastern U.S, the
upper low will move very slowly to the northeast through Monday.
Most of the wrap around moisture and associated precipitation
should remain north of the forecast area.

Another jetstreak start diving southeast into the northern Rockies
on Monday night which will begin to develop a trough and
eventually another closed upper low which will bring additional
precipitation to the area from Tuesday night into Thursday. Models
do have some differences, but all bring additional precipitation
and we are going another inch to inch and a half with this system.
Most of the instability will remain south of the area so we will
go with mainly isolated thunder in the southern part of the CWA
and showers across the north. Due to the significant ongoing
flooding though, additional rainfall will add to the flooding
issues.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1211 PM CDT Sat Apr 29 2017

Several waves of strong thunderstorms with heavy rain will
continue to push across the area through the forecast period.
North of the warm front (jln/sgf) will likely remain in mvfr/ifr
through much of the forecast period. BBG could break out a bit in
between rounds of thunderstorms, but will likely be in mostly
MVFR/IFR conditions. Final round of heavier convection should push
through the TAF sites late in the overnight period into Sunday
morning.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...Flash Flood Watch through Sunday evening for MOZ055>058-066>071-
     077>083-088>098-101>106.

KS...Flash Flood Watch through Sunday evening for KSZ073-097-101.

&&

SYNOPSIS...Lindenberg
SHORT TERM...Lindenberg
LONG TERM...Lindenberg
AVIATION...Lindenberg

Hazardous Weather Outlook
National Weather Service Springfield MO
354 PM CDT Sat Apr 29 2017

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-302100-
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-
354 PM CDT Sat Apr 29 2017

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.
  Significant Flooding risk.
  Significant Lightning risk.

DISCUSSION...

Multiple rounds of thunderstorms with heavy rain will continue to
impact the outlook area the remainder of the afternoon through
tonight. Torrential rainfall will continue to train from southwest
to northeast across the area which will cause significant
flooding to occur.

There is an elevated risk for strong to severe storms generally
across far south central Missouri. The strongest storms will be
capable of producing large hail to the size of golf balls, wind
gusts in excess of 60 mph and perhaps an isolated tornado.

Flash flooding will be likely, especially south of a Pittsburg
Kansas to Lake of the Ozarks line as additional waves of
thunderstorms with heavy rain will impact the area through
tonight. Additional rainfall amounts of two to four inches of
rainfall with embedded higher amounts will be possible. This will
lead to extensive flash flooding and moderate to major flooding
on most of the rivers and streams in the area. Some record crest
levels are even expected.

A Flash Flood Watch is in effect for the entire outlook area
through Sunday.

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

Residual flooding will continue Sunday through at least the first
half of the workweek next week.

There will be an additional risk for showers and a few
thunderstorms by mid week next week.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation may be needed in the next three hours for
  areas mainly southeast of a Salem to Gainesville line.

&&

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

Lindenberg

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
345 PM CDT SAT APR 29 2017

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

0344 PM     FLASH FLOOD      THORNFIELD              36.71N 92.66W
04/29/2017                   OZARK              MO   EMERGENCY MNGR

            HIGHWAY D NORTH OF THORNFIELD CLOSED.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
347 PM CDT SAT APR 29 2017

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

0315 PM     HEAVY RAIN       3 NW GOLDEN             36.56N 93.69W
04/29/2017  E6.96 INCH       BARRY              MO   PUBLIC

            3.50 TO 3.74 INCHES OF RAIN OVER 3HR PERIOD.
            6.96 INCHES SINCE MIDNIGHT.

&&

TEO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
425 PM CDT SAT APR 29 2017

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

0424 PM     HEAVY RAIN       NEOSHO                  36.86N 94.36W
04/29/2017  M6.25 INCH       NEWTON             MO   CO-OP OBSERVER

            6.25 INCHES TOTAL SINCE YESTERDAY MORNING.
            4.73 INCHES SINCE 8AM THIS MORNING. COOP.

&&

TEO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
451 PM CDT SAT APR 29 2017

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

0449 PM     FLASH FLOOD      WEST PLAINS             36.73N 91.85W
04/29/2017                   HOWELL             MO   FIRE DEPT/RESCUE

            REPORT OF WATER OVER WEST 160 IN SEVERAL
            PLACES. PATROL REPORTING WATER OVER 63
            HIGHWAY NORTH OF WEST PLAINS.

&&

TEO

Special Weather Statement
National Weather Service Springfield MO
500 PM CDT SAT APR 29 2017

MOZ097-105-292245-
Ozark MO-Howell MO-
500 PM CDT SAT APR 29 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OZARK AND WEST CENTRAL
HOWELL COUNTIES UNTIL 545 PM CDT...

At 500 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles northwest of Bakersfield, or 21 miles northeast of Mountain
Home, moving north at 40 mph.

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

Locations impacted include...
Dora...                           Siloam Springs...
Caulfield...                      Sycamore...
Zanoni...                         Tecumseh...

LAT...LON 3656 9236 3680 9232 3679 9210 3680 9209
      3680 9202 3655 9212
TIME...MOT...LOC 2200Z 193DEG 30KT 3662 9223

Wise

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
501 PM CDT SAT APR 29 2017

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

0457 PM     FLASH FLOOD      1 NNE BAGNELL           38.25N 92.59W
04/29/2017                   MILLER             MO   AMATEUR RADIO

            CAT ROCK RD JUST EAST OF HWY 54 IN ELDON IS
            FLOODED ALONG WITH BLUE SPRINGS DR. AT
            LITTLE GRAVOIS CREEK.

&&

TEO