Alert archive / Illinois / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 130, NWS St. Louis, MO

June 5, 2019Brown County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 5, 2019, 3:02 PM CDT for Brown County, Illinois. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 5, 2019, 3:02 PM CDT (20:02 UTC)
Expired: Jun 5, 2019, 3:45 PM CDT
In force: 43 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Brown County, IL

The radar

The Lincoln radar (KILX), 113 km from the middle of the area, began a volume at 20:01 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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
Jun 5, 2:21 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.0 hours before the alert went out and 175 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: 941 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

As transmitted.

066 
WUUS53 KLSX 052002
SVRLSX
ILC009-052045-
/O.NEW.KLSX.SV.W.0130.190605T2002Z-190605T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
302 PM CDT Wed Jun 5 2019

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Brown County in west central Illinois...

* Until 345 PM CDT.

* At 302 PM CDT, severe thunderstorms were located along a line
  extending from 6 miles west of Beardstown to near Clayton, moving
  southeast at 10 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...
  Mount Sterling, Buckhorn, La Grange, Versailles, Mound Station,
  Ripley and Coopertown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in St Louis.

&&

LAT...LON 4010 9070 4009 9070 4008 9067 4005 9068
      4002 9063 4003 9061 4001 9062 4000 9060
      3998 9060 3998 9051 3997 9051 3995 9053
      3992 9054 3988 9058 3984 9058 3985 9092
      4011 9091
TIME...MOT...LOC 2002Z 331DEG 10KT 4000 9055 3999 9090 

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

Gosselin

3 follow-up statements

570 
WWUS53 KLSX 052013
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
313 PM CDT Wed Jun 5 2019

ILC009-052045-
/O.CON.KLSX.SV.W.0130.000000T0000Z-190605T2045Z/
Brown IL-
313 PM CDT Wed Jun 5 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR BROWN COUNTY...

At 312 PM CDT, severe thunderstorms were located along a line
extending from near Beardstown to near Mount Sterling to near
Buckhorn, moving southeast at 15 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...
Mount Sterling, Buckhorn, La Grange, Versailles, Mound Station,
Ripley and Coopertown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
St Louis.

&&

LAT...LON 4010 9070 4009 9070 4008 9067 4005 9068
      4002 9063 4003 9061 4001 9062 4000 9060
      3998 9060 3998 9051 3997 9051 3995 9053
      3992 9054 3988 9058 3984 9058 3985 9092
      4002 9091 4011 9082
TIME...MOT...LOC 2012Z 309DEG 12KT 3996 9052 3998 9072 3997 9089 

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

Gosselin

462 
WWUS53 KLSX 052032
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
332 PM CDT Wed Jun 5 2019

ILC009-052045-
/O.CON.KLSX.SV.W.0130.000000T0000Z-190605T2045Z/
Brown IL-
332 PM CDT Wed Jun 5 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR BROWN COUNTY...

At 331 PM CDT, severe thunderstorms were located along a line
extending from 6 miles west of Arenzville to near Mount Sterling to
Buckhorn, moving southeast at 10 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...
Mount Sterling, Buckhorn, La Grange, Versailles, Mound Station,
Ripley and Coopertown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
St Louis.

&&

LAT...LON 4010 9070 4009 9070 4008 9067 4005 9068
      4002 9063 4003 9061 4001 9062 4000 9060
      3998 9060 3998 9051 3997 9051 3995 9053
      3992 9054 3988 9058 3984 9058 3985 9092
      3994 9091 4011 9082
TIME...MOT...LOC 2031Z 331DEG 10KT 3992 9049 3994 9069 3993 9086 

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

Gosselin

902 
WWUS53 KLSX 052042
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
342 PM CDT Wed Jun 5 2019

ILC009-052052-
/O.EXP.KLSX.SV.W.0130.000000T0000Z-190605T2045Z/
Brown IL-
342 PM CDT Wed Jun 5 2019

...THE SEVERE THUNDERSTORM WARNING FOR BROWN COUNTY WILL EXPIRE AT
345 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
west central Illinois.

LAT...LON 4010 9070 4009 9070 4008 9067 4005 9068
      4002 9063 4003 9061 4001 9062 4000 9060
      3998 9060 3998 9051 3997 9051 3995 9053
      3992 9054 3988 9058 3984 9058 3985 9092
      3994 9091 4011 9082
TIME...MOT...LOC 2042Z 331DEG 10KT 3990 9047 3992 9067 3991 9084 

$$

CVKING

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 St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 5, 2:43 PM CDT, 19 minutes earlier.

Area forecast discussion, Jun 5, 2:43 PM CDT, 19 minutes before

Area Forecast Discussion
National Weather Service Saint Louis MO
243 PM CDT Wed Jun 5 2019

.SHORT TERM...  (Through Late Thursday Night)
Issued at 148 PM CDT Wed Jun 5 2019

Focus continues to be thunderstorm and severe threat through this
evening.

Surface low is currently centered over northwest MO with a front
across northern MO into west central IL. Congested CU developing
over NE MO and into west central IL as well as over far eastern
portions of the CWA as an outflow boundary pushes south. These two
areas should be a focus for development this afternoon. Once these
storms develop, they will likely quickly become severe.

With steep mid level lapse rates and high CAPE, hail will be a
threat. Mid levels are quite dry, which will help enhance the
downburst and cold pools. While hail will initially be a threat,
the threat should transition to a wind threat over the next couple
of hours. While a tornado threat can never be completely ruled
out, with 15 to 20kts of 0-3km shear, expect a low tornado threat
through the evening.

Upper low currently over NM is expected to continue moving east
and should lift into OK region by Thurs morning. This should help
support thunderstorm development over the region with a stalled
sfc front across the area. The focus should be over the southern
half or so of the CWA, but likely or higher PoPs may need to be
pulled further north. Given the rain southern portions of the CWA
have received yesterday, and additional rain this evening, will
need to consider potential for a flood headline for tomorrow and
potentially into Fri.

Tilly

.LONG TERM...  (Thursday Night through Tuesday)
Issued at 350 AM CDT Wed Jun 5 2019

The first half of this period is expected to have a persistent
threat for rain, with some relief to the wet pattern coming after
the weekend.

The latest model guidance is taking the upper LOW from the
southwestern CONUS on a more southerly track--one that may now take
it mainly south of our region except for portions of southern MO and
far southern IL.  The main effect of this will likely be to shift
the highest QPF and the most prolonged and steady rainfall to our
south, but it will still result in mid to high PoPs, due to the
fairly large influence of the upper LOW and the development of an
inverted surface TROF and later the passage of a cold front late in
the weekend.

Once the upper LOW passes late Sunday, northwest flow aloft takes
hold with a surface high pressure building in behind the cold front.
 About as good of a signal as it gets for what hopefully will be a
pair of dry days Monday and Tuesday of next week.

Severe storm probabilities continue to look low for this period,
with the more southerly track of the low pressure favoring this
scenario as well.  Likewise, the more southerly track of the low
pressure also favors lower QPF, with nearly all locations at less
than 2 inches through Sunday.  This lowering trend will help with
existing flooding issues.

Temperatures will remain around seasonal normals through this period
thanks to the slow passage of the upper LOW and when it does pass,
the building in of a cooler airmass despite more sunshine and
anticipated dry weather.

TES

&&

.AVIATION...  (For the 18z TAFs through 18z Thursday Afternoon)
Issued at 1223 PM CDT Wed Jun 5 2019

TSRA are expected to develop this afternoon across west central
IL into northeast MO. These storms should merge into some sort of
line and push south through the region. KCOU should see less
coverage and therefore left much of that forecast as-is. Other
sites, have lowered visbys during timing of greatest TSRA threat.
The threat of these storms being severe continues to increase.
Will update in a few hours as timing confidence increases. Winds
will become nely on Thurs with shower chances increasing through
the morning.

Tilly

&&

.PRELIMINARY POINT TEMPS/POPS...
Saint Louis     91  73  87  68 /  40 100  50  40
Quincy          88  66  82  63 /  80  50  30  10
Columbia        90  67  85  66 /  50  60  50  30
Jefferson City  90  67  85  67 /  30  60  60  40
Salem           89  68  85  67 /  30 100  50  40
Farmington      89  65  83  65 /  10  90  70  70

&&

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

WFO LSX

Hazardous weather outlook, Jun 5, 4:05 AM CDT, 10 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service Saint Louis MO
405 AM CDT Wed Jun 5 2019

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-061200-
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 Wed Jun 5 2019

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.

Thunderstorms will become likely by late this afternoon and this
evening. Some storms may be severe, capable of large hail and
damaging winds, especially for areas near and north of Interstate 70
during the late afternoon and evening hours.

Major river flooding is ongoing along parts of the Missouri,
Mississippi, Illinois, and Osage Rivers.

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

Thunderstorms are in the forecast each day through Monday.

Major river flooding will continue along parts of the Missouri,
Mississippi, Illinois, and Osage Rivers.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and this evening,
especially for areas near and north of Interstate 70.

TES

In the hours before

Special weather statement, Jun 5, 2:38 PM CDT, 24 minutes before

Special Weather Statement
National Weather Service St Louis MO
238 PM CDT Wed Jun 5 2019

ILZ096-052030-
Brown IL-
238 PM CDT Wed Jun 5 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWN COUNTY UNTIL 330
PM CDT...

At 238 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles southwest of Littleton, moving southeast at 20 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Mount Sterling, La Grange, Ripley and Coopertown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in St Louis.

&&

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
west central Illinois.

LAT...LON 4010 9070 4009 9070 4008 9067 4005 9068
      4002 9063 4003 9061 4001 9062 4000 9060
      3998 9060 3998 9051 3997 9051 3995 9053
      3992 9054 3991 9055 3997 9073 4008 9091
      4011 9090
TIME...MOT...LOC 1938Z 292DEG 17KT 4014 9078

Gosselin

Local storm report, Jun 5, 2:53 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
253 PM CDT WED JUN 5 2019

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

0622 PM     TSTM WND DMG     VIBURNUM                37.71N 91.13W
06/04/2019                   IRON               MO   LAW ENFORCEMENT

            WIND DAMAGE ALONG HIGHWAY 49 FROM VIBURNUM
            TO BIXBY. TIME ESTIMATED FROM RADAR.

&&

KD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 2:38 PM CDT	Special Weather Statement	LSX	Brown	52 min
Jun 5, 2:52 PM CDT	Severe Thunderstorm Warning	LSX	Marion	53 min
Jun 5, 4:03 PM CDT	Special Weather Statement	LSX	Montgomery	42 min
Jun 5, 4:33 PM CDT	Special Weather Statement	LSX	Pike	42 min
Jun 5, 4:44 PM CDT	Flash Flood Warning	LSX	Adams	6 hr
Jun 5, 4:56 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	49 min
Jun 5, 5:22 PM CDT	Flash Flood Warning	LSX	Marion	6 hr
Jun 5, 5:24 PM CDT	Special Weather Statement	LSX	Pike	51 min
Jun 5, 6:13 PM CDT	Special Weather Statement	LSX	Calhoun	47 min
Jun 5, 6:27 PM CDT	Areal Flood Advisory	LSX	Adams, Pike	3 hr
Jun 5, 6:45 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey, Madison	45 min
Jun 5, 6:50 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	40 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2019 Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.