Alert archive / Illinois / Red Flag Warnings in 2012

Red Flag Warning 2, NWS Lincoln, IL

April 9, 201235 counties in Illinois

NWS Lincoln, IL issued this red flag warning at Apr 9, 2012, 3:54 AM CDT for 35 counties in Illinois. It took effect at Apr 9, 2012, 12:00 PM CDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 9, 2012, 3:54 AM CDT (08:54 UTC)
In effect from
Apr 9, 2012, 12:00 PM CDT
Expired
Apr 9, 2012, 7:00 PM CDT
In force
7 hr
Issued by
NWS Lincoln, IL
All 35 counties

Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fulton County, IL, Jasper County, IL, Knox County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Richland County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 42 km from the middle of the area, began a volume at 08:58 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.9 hours before the alert went out and 46 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, Lincoln, IL at 00:00Z on 2012-04-09Temperature 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, Lincoln, IL at 00:00Z on 2012-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897Sfc1 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
0 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

518 
WWUS83 KILX 090854
RFWILX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
354 AM CDT MON APR 9 2012

...AN ENHANCED FIRE THREAT THIS AFTERNOON...

ILZ027>031-036>038-040>057-061-091700-
/O.UPG.KILX.FW.A.0001.120409T1700Z-120410T0000Z/
/O.NEW.KILX.FW.W.0002.120409T1700Z-120410T0000Z/
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-MCLEAN-
SCHUYLER-MASON-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-CASS-
MENARD-SCOTT-MORGAN-SANGAMON-CHRISTIAN-MACON-MOULTRIE-DOUGLAS-
COLES-EDGAR-SHELBY-
354 AM CDT MON APR 9 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING.

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...FIRE WEATHER ZONES 027...028...029...030... 
  031...036...037...038...040...041...042...043...044...045... 
  046...047...048...049...050...051...052...053...054...055... 
  056...057 AND 061. 

* 20 FOOT WINDS...NORTHWEST AT 20 TO 25 MPH WITH GUSTS UP TO 35 
  MPH THIS AFTERNOON.

* HUMIDITY...25 PERCENT OR LESS.

* 10 HOUR FUELS...AROUND 6 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

ILZ062-063-066>068-071>073-091700-
/O.NEW.KILX.FW.W.0002.120409T1700Z-120410T0000Z/
CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
354 AM CDT MON APR 9 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING.

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONES 062...063...066...067... 
  068...071...072 AND 073. 

* 20 FOOT WINDS...NORTHWEST AT 20 TO 25 MPH WITH GUSTS UP TO 35 
  MPH THIS AFTERNOON.

* HUMIDITY...25 PERCENT OR LESS.

* 10 HOUR FUELS...AT 7 PERCENT OR LESS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

AUTEN
3 follow-up statements
112 
WWUS83 KILX 091600
RFWILX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
1100 AM CDT MON APR 9 2012

...AN ENHANCED FIRE THREAT THIS AFTERNOON...

ILZ027>031-036>038-040>057-061>063-066>068-071>073-100000-
/O.CON.KILX.FW.W.0002.120409T1700Z-120410T0000Z/
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-MCLEAN-
SCHUYLER-MASON-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-CASS-
MENARD-SCOTT-MORGAN-SANGAMON-CHRISTIAN-MACON-MOULTRIE-DOUGLAS-
COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-
CLAY-RICHLAND-LAWRENCE-
1100 AM CDT MON APR 9 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* AFFECTED AREA...FIRE WEATHER ZONES 027...028...029...030... 
  031...036...037...038...040...041...042...043...044...045... 
  046...047...048...049...050...051...052...053...054...055... 
  056...057 AND 061. 

* 20 FOOT WINDS...NORTHWEST OF 20 TO 25 MPH WITH GUSTS UP TO 35 MPH
  THIS AFTERNOON.

* RELATIVE HUMIDITY...LOWERING TO 15 TO 25 PERCENT THIS AFTERNOON.

* 10 HOUR FUELS...5 TO 7 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

KH/AUTEN
343 
WWUS83 KILX 091952
RFWILX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
252 PM CDT MON APR 9 2012

...AN ENHANCED FIRE THREAT CONTINUES THIS AFTERNOON...WITH
CONDITIONS CLOSE TO RED FLAG CRITERIA AGAIN TUESDAY AFTERNOON...

ILZ027>031-036>038-040>057-061>063-066>068-071>073-100000-
/O.CON.KILX.FW.W.0002.000000T0000Z-120410T0000Z/
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-MCLEAN-
SCHUYLER-MASON-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-CASS-
MENARD-SCOTT-MORGAN-SANGAMON-CHRISTIAN-MACON-MOULTRIE-DOUGLAS-
COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-
CLAY-RICHLAND-LAWRENCE-
252 PM CDT MON APR 9 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* AFFECTED AREA...FIRE WEATHER ZONES 027...028...029...030... 
  031...036...037...038...040...041...042...043...044...045... 
  046...047...048...049...050...051...052...053...054...055... 
  056...057 AND 061. 

* 20 FOOT WINDS...NORTHWEST OF 20 TO 25 MPH WITH GUSTS UP TO 40 MPH
  THIS AFTERNOON.

* RELATIVE HUMIDITY...RANGING FROM 15 TO 20 PERCENT THROUGH LATE
  THIS AFTERNOON. 

* 10 HOUR FUELS...5 TO 6 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. CONDITIONS TUESDAY AFTERNOON
WILL APPROACH RED FLAG WARNING CRITERIA...BUT AT THIS TIME...IT
APPEARS AFTERNOON TEMPERATURES WILL BE QUITE A BIT COOLER THAN
THIS AFTERNOON...WHICH SHOULD KEEP OUR AREA JUST BELOW RED FLAG
WARNING CRITERIA.

&&

$$

SMITH
361 
WWUS83 KILX 100016
RFWILX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
716 PM CDT MON APR 9 2012

ILZ027>031-036>038-040>057-061>063-066>068-071>073-100130-
/O.EXP.KILX.FW.W.0002.000000T0000Z-120410T0000Z/
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-MCLEAN-
SCHUYLER-MASON-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-CASS-
MENARD-SCOTT-MORGAN-SANGAMON-CHRISTIAN-MACON-MOULTRIE-DOUGLAS-
COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-
CLAY-RICHLAND-LAWRENCE-
716 PM CDT MON APR 9 2012

...RED FLAG WARNING HAS EXPIRED FOR CENTRAL AND SOUTHEAST ILLINOIS...

GUSTY NORTHWEST WINDS SHOULD CONTINUE WITH SUNSET. IN
ADDITION...HUMIDITY VALUES WILL RISE AS TEMPERATURES COOL. AS A
RESULT... THE RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE.

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 3:10 PM CDTFreeze WatchILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more13 hr

Nearby

Red Flag Warnings in Illinois, 2012Every red flag warning in 2012

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.