Alert archive / Illinois / Frost Advisories in 2012

Frost Advisory 3, NWS Lincoln, IL

October 7, 201222 counties in Illinois

NWS Lincoln, IL issued this frost advisory at Oct 7, 2012, 3:25 PM CDT for 22 counties in Illinois. It took effect at Oct 8, 2012, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Oct 7, 2012, 3:25 PM CDT (20:25 UTC)
In effect from
Oct 8, 2012, 1:00 AM CDT
Expired
Oct 8, 2012, 8:01 AM CDT
In force
7 hr
Issued by
NWS Lincoln, IL
All 22 counties

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, Jasper County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, McLean County, IL, Moultrie County, IL, Piatt County, IL, Richland County, IL, Sangamon County, IL, Shelby County, IL, Vermilion County, IL

The radar

The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 20:26 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 12:00Z, 8.4 hours before the alert went out and 68 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 12:00Z on 2012-10-07Temperature 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 12:00Z on 2012-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
1072 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
3 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.

383 
WWUS73 KILX 072025
NPWILX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
325 PM CDT SUN OCT 7 2012

ILZ038-042>046-051>057-061>063-066>068-071>073-080400-
/O.NEW.KILX.FR.Y.0003.121008T0600Z-121008T1300Z/
MCLEAN-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-SANGAMON-CHRISTIAN-
MACON-MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-
EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...NORMAL...LINCOLN...
CHAMPAIGN...URBANA...DANVILLE...SPRINGFIELD...TAYLORVILLE...
DECATUR...CHARLESTON...MATTOON...SHELBYVILLE...EFFINGHAM...
FLORA...LAWRENCEVILLE
325 PM CDT SUN OCT 7 2012

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM CDT MONDAY. 


* TEMPERATURE...EXPECT TEMPERATURE READINGS TO FALL INTO THE 30S
  WITHIN A FEW HOURS OF SUNSET...WITH READINGS APPROACHING FREEZING
  BY DAYBREAK.

* IMPACTS...WHILE A HARD FREEZE IS NOT ANTICIPATED...A FEW HOURS
  OF FROST OR BRIEFLY FREEZING TEMPERATURES CAN DAMAGE TENDER
  VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$


BAK
3 follow-up statements
835 
WWUS73 KILX 080404
NPWILX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
1104 PM CDT SUN OCT 7 2012

ILZ038-042>046-051>057-061>063-066>068-071>073-081300-
/O.CON.KILX.FR.Y.0003.121008T0600Z-121008T1300Z/
MCLEAN-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-SANGAMON-CHRISTIAN-
MACON-MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-
EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...NORMAL...LINCOLN...
CHAMPAIGN...URBANA...DANVILLE...SPRINGFIELD...TAYLORVILLE...
DECATUR...CHARLESTON...MATTOON...SHELBYVILLE...EFFINGHAM...
FLORA...LAWRENCEVILLE
1104 PM CDT SUN OCT 7 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY. 

* TEMPERATURE...EXPECT TEMPERATURE READINGS TO FALL INTO THE 30S 
  WITHIN A FEW HOURS OF SUNSET...WITH READINGS APPROACHING 
  FREEZING BY DAYBREAK. 

* IMPACTS...WHILE A HARD FREEZE IS NOT ANTICIPATED...A FEW HOURS 
  OF FROST OR BRIEFLY FREEZING TEMPERATURES CAN DAMAGE TENDER 
  VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

AUTEN
702 
WWUS73 KILX 080841
NPWILX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
341 AM CDT MON OCT 8 2012

ILZ038-042>046-051>057-061>063-066>068-071>073-081300-
/O.CON.KILX.FR.Y.0003.000000T0000Z-121008T1300Z/
MCLEAN-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-SANGAMON-CHRISTIAN-
MACON-MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-
EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...NORMAL...LINCOLN...
CHAMPAIGN...URBANA...DANVILLE...SPRINGFIELD...TAYLORVILLE...
DECATUR...CHARLESTON...MATTOON...SHELBYVILLE...EFFINGHAM...
FLORA...LAWRENCEVILLE
341 AM CDT MON OCT 8 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING. 

* TEMPERATURE...TEMPERATURES WILL BE IN THE LOW TO MID 30S THROUGH
  8 AM ACROSS CENTRAL AND EASTERN ILLINOIS. SOME AREAS FROM I-70
  NORTH AND FROM I-55 EAST WILL SEE TEMPERATURES SLIP JUST BELOW
  FREEZING FOR A FEW HOURS EARLY THIS MORNING.

* IMPACTS...WHILE A HARD FREEZE IS NOT ANTICIPATED...A FEW HOURS
  OF FROST OR BRIEFLY FREEZING TEMPERATURES CAN DAMAGE TENDER
  VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS LIKELY. SENSITIVE
OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

KH
905 
WWUS73 KILX 081301
NPWILX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LINCOLN IL
801 AM CDT MON OCT 8 2012


ILZ038-042>046-051>057-061>063-066>068-071>073-081415-
/O.CAN.KILX.FR.Y.0003.000000T0000Z-121008T1300Z/
MCLEAN-LOGAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-SANGAMON-CHRISTIAN-
MACON-MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-
EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...NORMAL...LINCOLN...
CHAMPAIGN...URBANA...DANVILLE...SPRINGFIELD...TAYLORVILLE...
DECATUR...CHARLESTON...MATTOON...SHELBYVILLE...EFFINGHAM...
FLORA...LAWRENCEVILLE
801 AM CDT MON OCT 8 2012

...FROST ADVISORY EXPIRES AT 800 AM CDT...

THE FROST ADVISORY HAS BEEN ALLOWED TO EXPIRE AT 800 AM CDT. 


$$

Nearby

Frost Advisories in Illinois, 2012Every frost advisory 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.