Alert archive / Illinois / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 70, NWS Lincoln, IL

June 10, 20185 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 10, 2018, 2:12 PM CDT for 5 counties in Illinois. It was in force for 48 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: Jun 10, 2018, 2:12 PM CDT (19:12 UTC)
Expired: Jun 10, 2018, 3:00 PM CDT
In force: 48 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Champaign County, IL, Douglas County, IL, Macon County, IL, Moultrie County, IL, Piatt County, IL

The radar

The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 19:11 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
Jun 10, 2:40 PM CDT	TSTM WND DMG	2 N Villa Grove, IL	REPORT OF NUMEROUS TREES WITH TOPS SHEARED OFF AT COUNTY ROAD 100 AND 130.

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 28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 10, 12:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.2 hours before the alert went out and 17 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: 585 J/kg
Mixed-layer CIN: -193 J/kg
Mixed-layer LCL: 611 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 362 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.2

Open this sounding in Storm Lab

The text

As transmitted.

433 
WUUS53 KILX 101912
SVRILX
ILC019-041-115-139-147-102000-
/O.NEW.KILX.SV.W.0070.180610T1912Z-180610T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
212 PM CDT SUN JUN 10 2018

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northeastern Moultrie County in central Illinois...
  Piatt County in central Illinois...
  Southwestern Champaign County in east central Illinois...
  Northwestern Douglas County in east central Illinois...
  Northern Macon County in central Illinois...

* Until 300 PM CDT

* At 212 PM CDT, a severe thunderstorm was located over Argenta, or
  11 miles west of Monticello, moving southeast at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Decatur, Monticello, Tuscola, Forsyth, Tolono, Villa Grove, Arthur,
  Maroa, Bement, Cerro Gordo, Long Creek, Atwood, Warrensburg,
  Lovington, Argenta, Oreana, Pesotum, Hammond, De Land and White
  Heath.

This includes the following highways...
 Interstate 57 between mile markers 210 and 229.
 Interstate 72 between mile markers 139 and 172.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3991 8801 3962 8854 3997 8914 4006 8888
      4006 8875 4010 8874 4010 8869 4012 8869
      4015 8858
TIME...MOT...LOC 1912Z 295DEG 38KT 3998 8879 

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

25

2 follow-up statements

453 
WWUS53 KILX 101944
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
244 PM CDT SUN JUN 10 2018

ILC139-101953-
/O.CAN.KILX.SV.W.0070.000000T0000Z-180610T2000Z/
Moultrie-
244 PM CDT SUN JUN 10 2018

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

A severe thunderstorm watch remains in effect until 800 PM CDT for
central and east central Illinois.

LAT...LON 3991 8801 3973 8834 3993 8884 4006 8874
      4010 8874 4010 8869 4012 8869 4015 8858
TIME...MOT...LOC 1943Z 292DEG 50KT 3981 8829 

$$

ILC019-041-115-147-102000-
/O.CON.KILX.SV.W.0070.000000T0000Z-180610T2000Z/
Piatt-Champaign-Douglas-Macon-
244 PM CDT SUN JUN 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR PIATT...SOUTHWESTERN CHAMPAIGN...NORTHWESTERN DOUGLAS AND EAST
CENTRAL MACON COUNTIES...

At 243 PM CDT, a severe thunderstorm was located over Tuscola, moving
southeast at 55 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Monticello, Tuscola, Tolono, Villa Grove, Bement, Cerro Gordo,
Atwood, Pesotum, De Land, White Heath, Bourbon, Sadorus, Ivesdale,
Cisco, Garrett, Longview, Milmine and Lodge.

This includes the following highways...
 Interstate 57 between mile markers 210 and 229.
 Interstate 72 between mile markers 152 and 172.

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 3991 8801 3973 8834 3993 8884 4006 8874
      4010 8874 4010 8869 4012 8869 4015 8858
TIME...MOT...LOC 1943Z 292DEG 50KT 3981 8829 

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

25

952 
WWUS53 KILX 101953
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
253 PM CDT SUN JUN 10 2018

ILC019-041-115-147-102003-
/O.EXP.KILX.SV.W.0070.000000T0000Z-180610T2000Z/
Piatt-Champaign-Douglas-Macon-
253 PM CDT SUN JUN 10 2018

...THE SEVERE THUNDERSTORM WARNING FOR PIATT...SOUTHWESTERN
CHAMPAIGN...NORTHWESTERN DOUGLAS AND EAST CENTRAL MACON COUNTIES WILL
EXPIRE AT 300 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However gusty winds
and heavy rain are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 800 PM CDT for
central and east central Illinois.

LAT...LON 3991 8801 3973 8834 3993 8884 4006 8874
      4010 8874 4010 8869 4012 8869 4015 8858
TIME...MOT...LOC 1953Z 295DEG 38KT 3977 8819 

$$

25

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 Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 1:12 PM CDT, 1 hour earlier.

Area forecast discussion, Jun 10, 1:12 PM CDT, 1 hour before

Area Forecast Discussion
National Weather Service Lincoln IL
112 PM CDT Sun Jun 10 2018

.UPDATE...
Issued at 1019 AM CDT Sun Jun 10 2018

Updated the forecast for PoPs and temperatures the rest of the
morning and through the afternoon. A cluster of backbuilding
t-storms with moderate to heavy rain formed in the past hour or so
near a surface boundary just south of I-74 at 15z. Plenty of low
level moisture feeding these storms and training echoes along the
boundary will produce areas of heavy rain from BMI toward DNV.
Adjusted the PoPs and QPF to account for this. Also adjusted
temperatures as partial clearing in west central IL has allowed
temps to climb into the lower-middle 80s, while readings in east
central IL hang in the mid-upper 60s.

Will need to keep an eye on remnants of convection/MCV from SW
Iowa which may interact with various low level boundaries, steep
lapse rates and increasing instability from heating into the
upper 80s in west central IL...to produce strong to severe storms
late this afternoon/evening in central IL. Some thunderstorms that
have developed in NE MO, ahead of the complex in Iowa, may
stabilize the atmosphere somewhat if it holds together and moves
into west central IL early this afternoon. This could minimize
the impact of any storms that develop/move into central IL late
this afternoon/evening.

&&

.SHORT TERM...(Today and tonight)
ISSUED AT 355 AM CDT Sun Jun 10 2018

An MCV was affecting parts of central and northern IL early this
morning, with some strong to severe thunderstorms and locally
heavy rains and frequent lightning around McLean, Ford and
southern Livingston counties and tracking ESE. Scattered showers
and thunderstorms were as far south as I-72 and from Peoria and
Springfield east. Have increased pops during early and mid morning
over ne CWA to account for this MCV activity. The CAM models have
not been very consistent with handling this convection so
confidence in convection chances this afternoon and tonight is
fairly low. Airmass to destabilize with daytime heating of humid
airmass this afternoon as temps rise into the mid 80s to near
90F, warmest over sw CWA. Expected more scattered showers and
thunderstorms to develop during mid/late afternoon and into this
evening. SPC has marginal risk of severe thunderstorms for gusty
winds and hail today into early this evening. Lows tonight in mid
60s northern CWA and around 70F sw CWA and southeast IL.

.LONG TERM...(Monday through Saturday)
ISSUED AT 355 AM CDT Sun Jun 10 2018

Similar airmass in place over area on Monday with another very
warm and humid day with highs in the upper 80s to around 90F with
scattered showers and thunderstorms. SPC day2 continues a
marginal risk of severe thunderstorms for wind and hail on Monday
afternoon into early Monday evening, though instability appears to
have shifted further sw during Monday night. A weak cold front to
push se over central IL on Tue and continue chances of showers and
thunderstorms. SPC day3 has marginal risk of severe storms in far
southeast IL Tue afternoon around Lawrence county. Highs Tue of
85-90 and warmest in southeast IL and humid conditions persist
another day with dewpoints in the upper 60s/lower 70s.

Isolated showers and thunderstorms possible over Wabash river
valley in southeast IL Tue evening, then models have gone dry over
area rest of Tue night thru Wed evening with slightly cooler and
less humid air moving into area due to nearby weak high pressure.
Highs Wed in mid to upper 80s and dewpoints in the low to mid
60s. Next chance of showers and thunderstorms arrives later Wed
night and Thu and continues into Friday morning. This due to an
upper level disturbance ridging over top of upper level ridge over
the great plains and moving into IL on Thu. Temperatures and
humidity levels to rise again later in the week as upper level
ridge builds into IL by Friday afternoon. More chances of showers
and thunderstorms arrives overnight Friday night into Saturday.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 112 PM CDT Sun Jun 10 2018

Very active period in the weather for this afternoon/early evening
and again overnight in central and eastern IL. Strong to severe
thunderstorms near KPIA are expected to expand and spread toward
east central IL by early evening. Some existing storms in east
central Il at 18Z are expected to remain below severe limits and
exit the region around KCMI by 19-20z.

Additional t-storms, associated with a convective complex in
central IA, are expected to move into central IL later this
evening. Much of the lower atmosphere is expected to be stabilized
from the earlier convection, so the main concerns are expected to
be moderate/heavy rain and then lowering ceilings as a more
stratiform precipitation shield approaches. Most TAF sites in
central IL are expected to drop into the MVFR ceiling category,
but will need to watch closely for IFR conditions after midnight
and through daybreak.

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

UPDATE...Miller
SHORT TERM...07
LONG TERM...07
AVIATION...Miller

Hazardous weather outlook, Jun 10, 11:57 AM CDT, 2 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Lincoln IL
1157 AM CDT Sun Jun 10 2018

ILZ027>031-036>038-040>057-061>063-066>068-071>073-111100-
Cass-Champaign-Christian-Clark-Clay-Coles-Crawford-Cumberland-
De Witt-Douglas-Edgar-Effingham-Fulton-Jasper-Knox-Lawrence-Logan-
Macon-Marshall-Mason-McLean-Menard-Morgan-Moultrie-Peoria-Piatt-
Richland-Sangamon-Schuyler-Scott-Shelby-Stark-Tazewell-Vermilion-
Woodford-
1157 AM CDT Sun Jun 10 2018

This Hazardous Weather Outlook is for portions of central
Illinois, east central Illinois, southeast Illinois and west
central Illinois.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Strong to severe storms will occur this afternoon through tonight
across most of central Illinois and all of southeast Illinois.
Damaging wind and large hail will be the primary severe threat,
mainly south of I-74. Locally heavy rains and frequent lightning
will also be a risk with any thunderstorm.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

A typical summer-time pattern is expected to continue through
Tuesday with daily chances for thunderstorms. There is a marginal
risk for strong to locally severe thunderstorms Monday afternoon
and evening. There is a chance of thunderstorms again from late
Wednesday night through Friday morning, and overnight Friday night
into Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed from 3 to 10 pm today.

Auten

In the hours before

Local storm report, Jun 10, 11:05 AM CDT, 3 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1105 AM CDT SUN JUN 10 2018

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

0324 AM     TSTM WND DMG     LEXINGTON               40.64N 88.78W
06/10/2018                   MCLEAN             IL   EMERGENCY MNGR

            REPORT OF SMALL LIMBS AND LEAF DEBRIS AROUND COUNTY. TIME
            ESTIMATED BY RADAR.

&&

SBAKER

Local storm report, Jun 10, 12:44 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1244 PM CDT SUN JUN 10 2018

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

1230 PM     HEAVY RAIN       HOOPESTON               40.47N 87.67W
06/10/2018  M2.53 INCH       VERMILION          IL   CO-OP OBSERVER

            OVER LAST 12 HOURS.

&&

SBAKER

Local storm report, Jun 10, 1:29 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
129 PM CDT SUN JUN 10 2018

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

0120 PM     TSTM WND GST     DELAVAN                 40.37N 89.54W
06/10/2018  E60 MPH          TAZEWELL           IL   PUBLIC

&&

SBAKER

Local storm report, Jun 10, 1:30 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
130 PM CDT SUN JUN 10 2018

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

0117 PM     TSTM WND DMG     1 N DELAVAN             40.39N 89.54W
06/10/2018                   TAZEWELL           IL   PUBLIC

            REPORT OF PINE TREES SNAPPED.

&&

SBAKER

Local storm report, Jun 10, 2:10 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
210 PM CDT SUN JUN 10 2018

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

0147 PM     TSTM WND DMG     DANVILLE                40.14N 87.62W
06/10/2018                   VERMILION          IL   EMERGENCY MNGR

            REPORT OF A TREE DOWN ON POWER LINES ON NORTH KIMBALL
            STREET.

&&

SBAKER

Local storm report, Jun 10, 2:12 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LINCOLN IL
212 PM CDT SUN JUN 10 2018

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

0147 PM     TSTM WND DMG     DANVILLE                40.14N 87.62W
06/10/2018                   VERMILION          IL   EMERGENCY MNGR

            REPORT OF A TREE DOWN ON POWER LINES ON NORTH KIMBALL
            STREET. TREE ALSO FELL ONTO A GARAGE CAUSING SIGNIFICANT
            DAMAGE.

&&

SBAKER

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 2:06 AM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Marshall, Peoria, Stark	39 min
Jun 10, 2:43 AM CDT	Severe Thunderstorm Warning	ILX	McLean, Marshall, Tazewell, Woodford	47 min
Jun 10, 3:29 AM CDT	Severe Thunderstorm Warning	ILX	McLean	46 min
Jun 10, 4:00 AM CDT	Severe Thunderstorm Warning	ILX	Champaign	45 min
Jun 10, 9:11 AM CDT	Special Weather Statement	ILX	Logan	49 min
Jun 10, 12:48 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Logan, Mason, Peoria, Tazewell	27 min
Jun 10, 1:12 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Mason, Menard, Tazewell	48 min
Jun 10, 1:16 PM CDT	Tornado Warning	ILX	McLean	29 min
Jun 10, 1:37 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	38 min
Jun 10, 1:52 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Menard	38 min
Jun 10, 1:56 PM CDT	Tornado Warning	ILX	Champaign, DeWitt, McLean, Piatt	34 min
Jun 10, 2:07 PM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	38 min
Jun 10, 2:15 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Piatt, Vermilion	45 min
Jun 10, 2:26 PM CDT	Severe Thunderstorm Warning	ILX	Menard, Sangamon	37 min
Jun 10, 2:38 PM CDT	Tornado Warning	ILX	Champaign, Douglas, Edgar, Vermilion	52 min
Jun 10, 3:00 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	45 min
Jun 10, 3:13 PM CDT	Flash Flood Warning	ILX	Vermilion	3 hr
Jun 10, 3:13 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Cumberland, Jasper	62 min
Jun 10, 3:51 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper	54 min
Jun 10, 4:41 PM CDT	Severe Thunderstorm Warning	ILX	Cass	38 min
Jun 10, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	20 min
Jun 10, 5:39 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	35 min
Jun 10, 6:18 PM CDT	Special Weather Statement	ILX	Christian	42 min

Nearby

Severe Thunderstorm Warnings in Illinois, 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.