Alert archive / Illinois / Tornado Warnings in 2020

Tornado Warning 1, NWS Lincoln, IL

March 28, 2020Knox County, Illinois

NWS Lincoln, IL issued this tornado warning at Mar 28, 2020, 5:08 PM CDT for Knox County, Illinois. It was in force for 37 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
Mar 28, 2020, 5:08 PM CDT (22:08 UTC)
Expired
Mar 28, 2020, 5:45 PM CDT
In force
37 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Knox County, IL

The radar

The Quad Cities radar (KDVN), 70 km from the middle of the area, began a volume at 22:12 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

TimeReportWhereRemark
Mar 28, 5:38 PM CDTFUNNEL CLOUD1 W Oneida, ILCONE FUNNEL WITH RAPID ROTATION.

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.

IssuedProductOfficeLasted
Mar 28, 2:45 PM CDTTornado Watch PDSSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.1 hours before the alert went out and 67 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2020-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2020-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -128 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
-128 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

218 
WFUS53 KILX 282208
TORILX
ILC095-282245-
/O.NEW.KILX.TO.W.0001.200328T2208Z-200328T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
508 PM CDT Sat Mar 28 2020

The National Weather Service in Lincoln has issued a

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

* Until 545 PM CDT.
    
* At 508 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles east of Monmouth, moving northeast at 50 mph.

  HAZARD...Tornado and quarter 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...
  Galesburg and Knoxville around 520 PM CDT.
  Wataga and Rio around 530 PM CDT.
  Oneida around 535 PM CDT.
  Altona around 540 PM CDT.

Other locations impacted by this tornadic thunderstorm include Snake
Den Hollow, Galesburg Airport, Henderson and East Galesburg.

This includes Interstate 74 between mile markers 35 and 52.
 
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 4115 8998 4106 8998 4083 9044 4115 9044
TIME...MOT...LOC 2208Z 223DEG 42KT 4088 9051 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

25
3 follow-up statements
787 
WWUS53 KILX 282218
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
518 PM CDT Sat Mar 28 2020

ILC095-282245-
/O.CON.KILX.TO.W.0001.000000T0000Z-200328T2245Z/
Knox-
518 PM CDT Sat Mar 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTHERN
KNOX COUNTY...
    
At 517 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Galesburg, moving northeast at 55 mph.

HAZARD...Tornado and quarter 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...
  Wataga and Rio around 525 PM CDT.
  Oneida around 530 PM CDT.
  Altona around 535 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Galesburg Airport, Henderson and East Galesburg.

This includes Interstate 74 between mile markers 35 and 49.
 
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 4114 8998 4106 8998 4103 9005 4089 9044
      4114 9044
TIME...MOT...LOC 2217Z 219DEG 49KT 4096 9042 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

25
941 
WWUS53 KILX 282228
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
528 PM CDT Sat Mar 28 2020

ILC095-282245-
/O.CON.KILX.TO.W.0001.000000T0000Z-200328T2245Z/
Knox-
528 PM CDT Sat Mar 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTHERN
KNOX COUNTY...
    
At 527 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Wataga, or near Galesburg, moving northeast at 45
mph.

HAZARD...Tornado and quarter 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...
  Oneida around 535 PM CDT.
  Altona and Victoria around 540 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Henderson.

This includes Interstate 74 between mile markers 38 and 47.
 
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 4114 8998 4106 8998 4103 9005 4095 9037
      4107 9039 4114 9026
TIME...MOT...LOC 2227Z 226DEG 37KT 4102 9032 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

25
672 
WWUS53 KILX 282244
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
544 PM CDT Sat Mar 28 2020

ILC095-282254-
/O.EXP.KILX.TO.W.0001.000000T0000Z-200328T2245Z/
Knox-
544 PM CDT Sat Mar 28 2020

...THE TORNADO WARNING FOR NORTHERN KNOX COUNTY WILL EXPIRE AT 545 PM
CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Tornado Watch remains in effect until 900 PM CDT for north central
and west central Illinois.

LAT...LON 4114 8998 4106 8998 4103 9005 4095 9037
      4107 9039 4114 9026
TIME...MOT...LOC 2244Z 223DEG 42KT 4116 9015 

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 12:55 AM CDTSpecial Weather StatementILXChristian50 min
Mar 28, 10:05 AM CDTSpecial Weather StatementILXMorgan, Sangamon40 min
Mar 28, 10:55 AM CDTSevere Thunderstorm WarningILXChristian, Sangamon50 min
Mar 28, 11:34 AM CDTSevere Thunderstorm WarningILXMacon41 min
Mar 28, 12:10 PM CDTSevere Thunderstorm WarningILXDouglas, Moultrie, Piatt50 min
Mar 28, 12:59 PM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Edgar, Vermilion49 min
Mar 28, 3:16 PM CDTSevere Thunderstorm WarningILXEdgar19 min
Mar 28, 3:21 PM CDTWind AdvisoryILXCass, Champaign, Christian, Clark, Coles, Cumberland and 24 more28 hr
Mar 28, 4:26 PM CDTSevere Thunderstorm WarningILXKnox25 min

Nearby

Tornado Warnings in Illinois, 2020Every tornado warning in 2020Tornadoes in 2020

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.