Alert archive / Illinois / Tornado Warnings in 2019

Tornado Warning 48, NWS St. Louis, MO

September 27, 2019Adams County, Illinois

NWS St. Louis, MO issued this tornado warning at Sep 27, 2019, 8:07 PM CDT for Adams County, Illinois. It was in force for 53 min. 2 reports 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: Sep 27, 2019, 8:07 PM CDT (01:07 UTC)
Expired: Sep 27, 2019, 9:00 PM CDT
In force: 53 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Adams County, IL

The radar

The Lincoln radar (KILX), 154 km from the middle of the area, began a volume at 01:06 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
Sep 27, 8:16 PM CDT	FUNNEL CLOUD	3 Nw Mendon, IL	REPORTED FUNNEL CLOUD ROTATING. DIFFICULT TO SEE GIVEN DARKNESS BUT LIGHTNING IS LIGHTING UP THE SKY SHOWING IT.
Sep 27, 8:23 PM CDT	HAIL 1	2 Nw Loraine, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Sep 27, 4:00 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.1 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: 1148 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 580 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 6.6

Open this sounding in Storm Lab

The text

As transmitted.

452 
WFUS53 KLSX 280107
TORLSX
ILC001-280200-
/O.NEW.KLSX.TO.W.0048.190928T0107Z-190928T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
807 PM CDT Fri Sep 27 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northern Adams County in west central Illinois...

* Until 900 PM CDT.
    
* At 807 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over La Grange, moving east at 40 mph.

  HAZARD...Tornado and golf ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Mendon around 825 PM CDT.
  Camp Point around 840 PM CDT.
  Golden around 845 PM CDT.
  Clayton around 850 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Coatsburg, Ursa, Paloma, Lima, Loraine, Woodville, La Prairie and
Chatton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4019 9091 4002 9092 4002 9148 4020 9150
TIME...MOT...LOC 0107Z 264DEG 34KT 4008 9147 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Britt

5 follow-up statements

473 
WWUS53 KLSX 280119
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
819 PM CDT Fri Sep 27 2019

ILC001-280200-
/O.CON.KLSX.TO.W.0048.000000T0000Z-190928T0200Z/
Adams IL-
819 PM CDT Fri Sep 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHERN
ADAMS COUNTY...
    
At 818 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Mendon, moving east at 40 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Camp Point around 840 PM CDT.
  Golden around 845 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Coatsburg, Ursa, Paloma, Lima, Loraine, Woodville, La Prairie and
Chatton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4019 9091 4002 9092 4002 9143 4020 9145
TIME...MOT...LOC 0118Z 258DEG 33KT 4010 9135 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Britt

138 
WWUS53 KLSX 280119 RRA
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
819 PM CDT Fri Sep 27 2019

ILC001-280200-
/O.CON.KLSX.TO.W.0048.000000T0000Z-190928T0200Z/
Adams IL-
819 PM CDT Fri Sep 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHERN
ADAMS COUNTY...
    
At 819 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Mendon, moving east at 40 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Camp Point around 840 PM CDT.
  Golden around 845 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Coatsburg, Ursa, Paloma, Lima, Loraine, Woodville, La Prairie and
Chatton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4019 9091 4002 9092 4002 9143 4020 9145
TIME...MOT...LOC 0119Z 258DEG 33KT 4010 9134 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Britt

326 
WWUS53 KLSX 280131
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
831 PM CDT Fri Sep 27 2019

ILC001-280200-
/O.CON.KLSX.TO.W.0048.000000T0000Z-190928T0200Z/
Adams IL-
831 PM CDT Fri Sep 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN ADAMS COUNTY...
    
At 831 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Mendon, moving east at 35 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Camp Point around 840 PM CDT.
  Golden around 845 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Loraine, Woodville, La Prairie and Chatton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4019 9091 4002 9092 4008 9130 4020 9131
TIME...MOT...LOC 0131Z 261DEG 32KT 4014 9118 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Britt

559 
WWUS53 KLSX 280141
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
841 PM CDT Fri Sep 27 2019

ILC001-280200-
/O.CON.KLSX.TO.W.0048.000000T0000Z-190928T0200Z/
Adams IL-
841 PM CDT Fri Sep 27 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN ADAMS COUNTY...
    
At 841 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Golden, moving east at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northeastern Adams County, including the following locations... La
Prairie, Chatton and Woodville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4019 9091 4008 9092 4013 9120 4020 9120
TIME...MOT...LOC 0141Z 258DEG 37KT 4017 9103 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Britt

401 
WWUS53 KLSX 280153
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
853 PM CDT Fri Sep 27 2019

ILC001-280202-
/O.EXP.KLSX.TO.W.0048.000000T0000Z-190928T0200Z/
Adams IL-
853 PM CDT Fri Sep 27 2019

...THE TORNADO WARNING FOR NORTHEASTERN ADAMS COUNTY WILL EXPIRE AT
900 PM CDT...
        
The storm which prompted the warning has exited the warned area. 
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1100 PM CDT for west central
Illinois.

LAT...LON 4019 9091 4008 9092 4013 9120 4020 9120
TIME...MOT...LOC 0152Z 264DEG 34KT 4018 9091 

$$

Britt

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 27, 7:34 PM CDT	Tornado Warning	LSX	Adams	41 min
Sep 27, 10:14 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	46 min
Sep 28, 1:19 AM CDT	Special Weather Statement	LSX	Brown	41 min
Sep 28, 3:06 AM CDT	River Flood Warning	LSX	Adams	40 days
Sep 28, 11:06 AM CDT	River Flood Warning	LSX	Adams	36 days
Sep 28, 11:06 AM CDT	River Flood Warning	LSX	Pike	38 days

Nearby

Tornado Warnings in Illinois, 2019 Every tornado warning in 2019 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.