Frigid arctic air occurred across western and north central Nebraska on December 21st as a storm system swept southeast from the Dakotas into the lower Great Lakes region.  This resulted in dangerous wind chill values of 30 below zero to 40 below zero across much of western and north central Nebraska.

Extreme Cold/Wind Chill in ROCK, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 37 degrees below zero in Rock County, taken from a mesonet site near Rose at 230 am CST.

Extreme Cold/Wind Chill in EASTERN CHERRY, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 35 degrees below zero in eastern Cherry County, taken from a mesonet site near Brownlee at 745 am CST.

Extreme Cold/Wind Chill in BOYD, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 33 degrees below zero.

Extreme Cold/Wind Chill in GARFIELD, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 33 degrees below zero.

Extreme Cold/Wind Chill in WHEELER, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 33 degrees below zero.

Extreme Cold/Wind Chill in SHERIDAN, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures near 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 42 degrees below zero at a mesonet site near Gordon at 7 am MST.

Extreme Cold/Wind Chill in WESTERN CHERRY, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures near 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 42 degrees below zero in western Cherry County.

Extreme Cold/Wind Chill in THOMAS, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 33 degrees below zero in Thomas County, taken from a nearby RAWS site at 7 am CST.

Extreme Cold/Wind Chill in LOUP, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 35 degrees below zero in Loup County.

Extreme Cold/Wind Chill in BLAINE, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 35 degrees below zero in Blaine County, taken from a mesonet site near Brewster at 730 am CST.

Extreme Cold/Wind Chill in CUSTER, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Air temperatures of 5 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills of 30 degrees below zero in Custer County, taken from the Broken Bow ASOS beginning at 5 am CST.

Extreme Cold/Wind Chill in HOLT, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 33 degrees below zero in Holt County, taken from an AWOS site near O'Neill at 510 am CST.

Extreme Cold/Wind Chill in BROWN, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 37 degrees below zero.

Extreme Cold/Wind Chill in KEYA PAHA, NEBRASKA
From 21-DEC-08 00:00:00 to 21-DEC-08 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Air temperatures of 5 below to 10 below zero combined with northwest winds of 20 to 30 mph during the morning hours on December 21st.  This created dangerous wind chills as low as 35 degrees below zero.