Severe Thunderstorm Warning 88, NWS St. Louis, MO

874 
WWUS53 KLSX 192356
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
656 PM CDT FRI MAY 19 2017

MOC019-051-200006-
/O.CAN.KLSX.SV.W.0088.000000T0000Z-170520T0030Z/
Cole MO-Boone MO-
656 PM CDT FRI MAY 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COLE AND
SOUTHEASTERN BOONE COUNTIES 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 1000 PM CDT for central and
east central Missouri.

LAT...LON 3881 9215 3881 9214 3897 9164 3821 9137
      3821 9153 3815 9153 3815 9164 3829 9165
      3829 9190 3856 9202 3856 9200 3857 9202
      3874 9218
TIME...MOT...LOC 2356Z 255DEG 40KT 3879 9208 3848 9180 3811 9167 

$$

MOC027-073-139-151-200030-
/O.CON.KLSX.SV.W.0088.000000T0000Z-170520T0030Z/
Montgomery MO-Callaway MO-Osage MO-Gasconade MO-
656 PM CDT FRI MAY 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN MONTGOMERY...CENTRAL CALLAWAY...OSAGE AND GASCONADE
COUNTIES...

At 656 PM CDT, severe thunderstorms were located along a line
extending from near New Bloomfield to near Linn to 8 miles northwest
of St. James, moving east at 45 mph.

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

SOURCE...Radar indicated. 

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

Locations impacted include...
Fulton, Holts Summit, Owensville, Linn, Belle, New Bloomfield, Bland,
Freeburg, Chamois, Lake Mykee Town, Rich Fountain, Williamsburg,
Mount Sterling, Lake Mykee, Drake, Gasconade, Mokane, Morrison,
Canaan and Portland.

This includes Interstate 70 in Missouri near exit 161.
 
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 1000 PM CDT for central and
east central Missouri.

LAT...LON 3881 9215 3881 9214 3897 9164 3821 9137
      3821 9153 3815 9153 3815 9164 3829 9165
      3829 9190 3856 9202 3856 9200 3857 9202
      3874 9218
TIME...MOT...LOC 2356Z 255DEG 40KT 3879 9208 3848 9180 3811 9167 

HAIL...0.75IN
WIND...60MPH
 
$$

Glass

293 
WWUS53 KLSX 200010
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
710 PM CDT FRI MAY 19 2017

MOC027-073-139-151-200030-
/O.CON.KLSX.SV.W.0088.000000T0000Z-170520T0030Z/
Montgomery MO-Callaway MO-Osage MO-Gasconade MO-
710 PM CDT FRI MAY 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN MONTGOMERY...SOUTHEASTERN CALLAWAY...EASTERN OSAGE
AND GASCONADE COUNTIES...

At 710 PM CDT, severe thunderstorms were located along a line
extending from near Fulton to near Chamois to near Mount Sterling to
near Bland, moving east at 50 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Fulton, Owensville, Linn, Belle, Bland, Chamois, Williamsburg, Mount
Sterling, Drake, Gasconade, Mokane, Morrison, Canaan, Portland, Bay,
Reform and Steedman.

This includes Interstate 70 in Missouri near exit 161.
 
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 1000 PM CDT for central and
east central Missouri.

LAT...LON 3885 9200 3897 9164 3821 9137 3821 9153
      3815 9153 3815 9164 3829 9165 3829 9181
      3855 9187 3874 9195
TIME...MOT...LOC 0010Z 254DEG 44KT 3886 9185 3870 9171 3851 9162 3827
9162

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

Glass

766 
WWUS53 KLSX 200030
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
730 PM CDT FRI MAY 19 2017

MOC027-073-139-151-200040-
/O.EXP.KLSX.SV.W.0088.000000T0000Z-170520T0030Z/
Montgomery MO-Callaway MO-Osage MO-Gasconade MO-
730 PM CDT FRI MAY 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONTGOMERY...
SOUTHEASTERN CALLAWAY...EASTERN OSAGE AND GASCONADE COUNTIES HAS
EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning has been allowed to expire.

A tornado watch remains in effect until 1000 PM CDT for central and
east central Missouri.

LAT...LON 3885 9200 3897 9164 3821 9137 3821 9153
      3815 9153 3815 9164 3829 9165 3829 9181
      3855 9187 3874 9195
TIME...MOT...LOC 0030Z 255DEG 40KT 3892 9158 3876 9144 3857 9135 3833
9135

$$

Glass

Area Forecast Discussion
National Weather Service Saint Louis MO
339 PM CDT Fri May 19 2017

.SHORT TERM...  (Through Late Saturday Afternoon)
Issued at 338 PM CDT Fri May 19 2017

New tornado watch has just been issued for much of central and parts
of east central Missouri along the quasi-stationary front.  Latest
GOES-16 imagery is showing cloud streets ahead of a QLCS over
southwest Missouri.  This is south of the stationary front that
extends front south of Kansas City and Columbia to north of St.
Louis.  The atmosphere has destabilized to the south of the warm
front with MLCAPES now between 500-2000 J/kg.  Deep layer shear is
also sufficient for severe storms including supercells and organized
multi-cells including the QLCS.  Runs of the CAMS have been showing
one QLCS moving across the CWA this evening and another moving
across the CWA late tonight.  There will the potential for all
hazards with these storms.  There could also be some locally heavy
rainfall across the area.

Showers and thunderstorms will begin to move out of the area on
Saturday from west to east as a cold front begins to move across the
area.

Britt

.LONG TERM...  (Saturday Night through Next Friday)
Issued at 338 PM CDT Fri May 19 2017

(Saturday Night - Wednesday Night)

Cold front will exit the CWA early on Saturday night from west to
east. Along and ahead of the front, there will exist at least a
chance of showers and thunderstorms. Severity is highly unknown as
atmosphere may be overworked and stabilized ahead of the actual cold
front due to antecedent convection. Severe threat regardless
would likely be confined to the evening hours.

Story behind the front continues to be the much cooler airmass which
will quickly filter into the mid-Mississippi Valley beginning after
the frontal passage. Below to much below normal temperatures will
likely be the rule through at least Wednesday night as longwave
trough amplifies overhead, and pivots southeastward toward the area
by Tuesday night/Wednesday. A prolonged chance of showers appears
possible beginning Monday night through Wednesday, with a closed low
forming at midlevels. Cannot rule out a few thunderstorms on Monday
and Tuesday, particularly during peak heating.

Coolest temperatures will likely be on Wednesday as 850-hPa
temperatures drop below +5C. Look for highs in the low to mid 60s
for most locations. Coldest night will likely be Wednesday Night
with lows in the mid to upper 40s.

(Thursday - Next Friday)

A quick moderation in temperatures is likely to end the work week
along with drier conditions as midlevel shortwave ridge moves toward
the bi-state region. Highs by Friday look to be back to just below
normal.

Gosselin

&&

.AVIATION...  (For the 18z TAFs through 18z Saturday Afternoon)
Issued at 1236 PM CDT Fri May 19 2017

Scattered thunderstorms are expected to redevelop along and south
of a stationary front this afternoon that currently extends from
south of KCOU to north of KSTL. MVFR and some IFR ceilings will
slowly lift during the afternoon hours. There will be a better
chance of thunderstorms toward 00Z when a more organized band of
thunderstorms moves across the area. A second area of
thunderstorms is expect to move across the area between 08-12Z
affecting all of the terminals. Any thunderstorms will have the
potential to produce MVFR/IFR conditionals and brief gusty winds.
MVFR/some IFR conditions are expect late tonight and early on
Saturday morning before they improve on during the day on
Saturday.

SPECIFICS FOR KSTL: There will be the threat for thunderstorms to
redevelop late this afternoon and early this evening. The best
chance for thunderstorms will be early this evening and again
overnight. Any thunderstorms will have the potential to produce
MVFR/IFR conditionals and brief gusty winds. MVFR/some IFR
conditions are expect late tonight and early on Saturday morning
before they improve on during the day on Saturday.  Any
thunderstorms will have the potential to produce MVFR/IFR
conditionals and brief gusty winds. MVFR/some IFR conditions are
expect late tonight and early on Saturday morning before they
improve on during the day on Saturday. Current southwest winds is
expected to turn to the north this afternoon.

Britt

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...None.
IL...None.
&&

WFO LSX

Hazardous Weather Outlook
National Weather Service Saint Louis MO
326 PM CDT Fri May 19 2017

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-201145-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
326 PM CDT Fri May 19 2017

This hazardous weather outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight

Thunderstorms through tonight may be severe with large hail up to
the size of golf balls, wind gusts to 70 mph and a few tornadoes
also possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A few severe thunderstorms are possible on Saturday, mainly across
portions of southern Illinois.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed tonight. Spotters are
encouraged to report any severe weather observed to the National
Weather Service.

Gosselin

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
202 PM CDT FRI MAY 19 2017

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

0348 AM     TSTM WND DMG     FREEBURG                38.32N  91.92W
05/19/2017                   OSAGE              MO   EMERGENCY MNGR

            METAL OUTBUILDING DESTROYED. TIME ESTIMATED FROM RADAR.

&&

EVENT NUMBER LSX1700419

GOSSELIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
205 PM CDT FRI MAY 19 2017

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

0436 AM     TSTM WND DMG     WARRENTON               38.82N  91.14W
05/19/2017                   WARREN             MO   FIRE DEPT/RESCUE

            NUMEROUS TREES AND POWER LINES DOWN IN TOWN. SEVERAL
            ROOFS DAMAGED DUE TO FALLING TREE LIMBS.

&&

EVENT NUMBER LSX1700420

GOSSELIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
208 PM CDT FRI MAY 19 2017

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

0548 AM     TSTM WND DMG     TROY                    38.73N  89.89W
05/19/2017                   MADISON            IL   PUBLIC

            SHED LIFT AND DEPOSITED IN WHEAT FIELD ON HWY 61 IN
            SOUTTH TROY

&&

EVENT NUMBER LSX1700421

KELLY

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE ST LOUIS MO
209 PM CDT FRI MAY 19 2017

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

0548 AM     TSTM WND DMG     TROY                    38.98N  90.98W
05/19/2017                   LINCOLN            MO   PUBLIC

            SHED LIFT AND DEPOSITED IN WHEAT FIELD ON HWY 61 IN
            SOUTTH TROY

&&

CORRECTED COUNTY/STATE...LOCATION

EVENT NUMBER LSX1700421

KELLY

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
637 PM CDT FRI MAY 19 2017

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

0634 PM     TSTM WND DMG     JEFFERSON CITY          38.57N  92.19W
05/19/2017                   COLE               MO   TRAINED SPOTTER

            LARGE TREE LIMB DOWN WITH SMALLER LIMBS SNAPPED AS
            WELL.

&&

EVENT NUMBER LSX1700422

GOSSELIN