Severe Thunderstorm Warning 85, NWS St. Louis, MO

200 
WWUS53 KLSX 281504
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1004 AM CDT Sun Jun 28 2020

ILC001-281513-
/O.CAN.KLSX.SV.W.0085.000000T0000Z-200628T1530Z/
Adams IL-
1004 AM CDT Sun Jun 28 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3992 9054 3988 9058 3986 9058 3983 9057
      3971 9065 3969 9065 3964 9061 3958 9058
      3955 9060 3976 9099 3976 9091 3990 9092
      3999 9087
TIME...MOT...LOC 1503Z 299DEG 30KT 3979 9074 

$$

ILC009-149-281530-
/O.CON.KLSX.SV.W.0085.000000T0000Z-200628T1530Z/
Pike IL-Brown IL-
1004 AM CDT Sun Jun 28 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT
FOR NORTHEASTERN PIKE AND SOUTHERN BROWN COUNTIES IN WEST CENTRAL
ILLINOIS...

At 1003 AM CDT, a severe thunderstorm was located near Griggsville,
moving southeast at 35 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Griggsville, Buckhorn, Versailles, Perry, Baylis, Chambersburg, New
Salem, Detroit, Florence, Valley City and Fishhook.

This includes Interstate 72 near exit 35.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3992 9054 3988 9058 3986 9058 3983 9057
      3971 9065 3969 9065 3964 9061 3958 9058
      3955 9060 3976 9099 3976 9091 3990 9092
      3999 9087
TIME...MOT...LOC 1503Z 299DEG 30KT 3979 9074 

HAIL...0.88IN
WIND...60MPH
 
$$

Carney

714 
WWUS53 KLSX 281519
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1019 AM CDT Sun Jun 28 2020

ILC009-149-281530-
/O.CON.KLSX.SV.W.0085.000000T0000Z-200628T1530Z/
Pike IL-Brown IL-
1019 AM CDT Sun Jun 28 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT
FOR NORTHEASTERN PIKE AND SOUTHEASTERN BROWN COUNTIES IN WEST CENTRAL
ILLINOIS...

At 1018 AM CDT, a severe thunderstorm was located over Naples, moving
southeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Griggsville, Versailles, Perry, Chambersburg, Detroit, Florence and
Valley City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3992 9054 3988 9058 3986 9058 3983 9057
      3971 9065 3969 9065 3958 9058 3955 9060
      3956 9061 3973 9081 3992 9075
TIME...MOT...LOC 1518Z 298DEG 26KT 3974 9062 

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

Carney

730 
WWUS53 KLSX 281529
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1029 AM CDT Sun Jun 28 2020

ILC009-149-281539-
/O.EXP.KLSX.SV.W.0085.000000T0000Z-200628T1530Z/
Pike IL-Brown IL-
1029 AM CDT Sun Jun 28 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIKE AND
SOUTHEASTERN BROWN COUNTIES IN WEST CENTRAL ILLINOIS WILL EXPIRE AT
1030 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3992 9054 3988 9058 3986 9058 3983 9057
      3971 9065 3969 9065 3958 9058 3955 9060
      3956 9061 3973 9081 3992 9075
TIME...MOT...LOC 1529Z 299DEG 30KT 3970 9053 

$$

Carney

Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
643 AM CDT Sun Jun 28 2020

.SHORT TERM...  (Through Late Monday Afternoon)
Issued at 358 AM CDT Sun Jun 28 2020

Forecast remains rather challenging especially in the extended. For
the short term it will be a bit quieter. Some patchy dense fog has
developed over portions of northeast Missouri and west central
Illinois in the past hour, so added mention to this area through mid
morning, before visibilities improve. Still dealing with showers and
a few storms across the forecast area this morning, mainly along the
frontal boundary that will continue to lift northward as a warm
front. By late this afternoon the front should lift northeast of
forecast area with activity tapering off. Despite ensemble mean MU
CAPES maxing out between 2500 and 4000 J/kg along warm front, lack
of any upper level support and weak mid/upper flow does not point to
any notable organized severe threat should storms develop, but with
the strong instability could see a few strong to severe pulse storms
with primarily a wind threat between about 10 am and 2 pm today.
Otherwise, warm south winds will allow temperatures to warm up into
the upper 80s to mid 90s. These temperatures combined with dewpoints
in the low to mid 70s will create heat indices in the 95 to 105
degree range, so rather hot and humid.

By tonight, it will be warm and muggy with lows only in the 70s. In
the meantime, with upper level ridging building overhead and
squeezed between two cut off upper lows to the east and west, region
will remain in a rather hot and humid pattern. On Monday, an upper
level shortwave will slide northward along western edge of upper
ridge towards forecast area, so will have increasing mid and high
clouds with showers and storms developing as the day progresses with
best chances across southern portions of forecast area. High
temperatures will be in the upper 80s to mid 90s once again.

Byrd

.LONG TERM...  (Monday Night through Saturday)
Issued at 358 AM CDT Sun Jun 28 2020

Little change in the extended through next weekend as upper level
ridge remains anchored over region. Will see several rounds of
activity through the extended with the best chances of showers and
storms late Monday night through Tuesday and again on Wednesday.
Otherwise, hot and humid conditions will persist with highs in the
mid 80s to mid 90s.

Byrd
&&

.AVIATION...  (For the 12z TAFs through 12z Monday Morning)
Issued at 634 AM CDT Sun Jun 28 2020

Patchy dense fog has developed over portions of northeast Missouri
and west central Illinois reducing visibilities and ceilings at
KUIN. Conditions will improve by 15z. Scattered showers and
storms will continue to lift northeastward this morning along and
north of a warm front. Any of the stronger storms will be capable
of reducing ceilings and visibilities to MVFR/possible IFR
conditions in brief downpours. Showers and storms will move out
by 18z. Otherwise, VFR flight conditions for remainder of the forecast
period. Light and variable winds will pickup from the south to
southwest.

Byrd
&&

.PRELIMINARY POINT TEMPS/POPS...
Saint Louis     94  78  94  74 /  50  10  30  50
Quincy          89  74  90  71 /  50  10  30  40
Columbia        92  72  89  71 /  30  10  30  50
Jefferson City  93  72  91  71 /  20  10  30  50
Salem           89  73  92  73 /  70  10  40  50
Farmington      92  73  91  69 /  20  10  30  50

&&

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

WFO LSX

Hazardous Weather Outlook
National Weather Service Saint Louis MO
405 AM CDT Sun Jun 28 2020

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-291200-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
405 AM CDT Sun Jun 28 2020

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Today and tonight.

Chance of thunderstorms through mid afternoon. A few storms may be
strong to severe especially between 10 am and 2 pm with the main
threat being damaging winds to 60 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

The chance for thunderstorms continues across parts of the area from
Monday through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed from late this morning through early
this afternoon.

Byrd