Winter Storm Elliott – December, 2022

Temperature map of North America - Weather Nation on Twitter

The United States was hit by historically cold and windy Winter weather with a rare mid-latitude mid-continent cyclone, one that would undergo a process of rapid intensification called Bombogenesis, or Bomb Cyclogenesis. The event was termed “Winter Storm Elliott.” This is a collection of some of the news stories, video and images about the storm and some of its effects. The image above depicts the extent of the cold on Thursday, Dec. 22 @ 11:00 am ET.

The storm began in the Pacific Northwest on Dec. 20 with up to 2 feet of snow in the Cascade Mountains with temperatures in the teens and 20s in Seattle. It moved through the Rocky Mountains and into the Plains on Dec. 21. Temperatures dropped 30 to 50 degrees in Wyoming and Colorado, with Denver dropping to -24, setting a local record of a 37° drop in one hour. On Dec. 23 the storm went through bombogenesis over the Great Lakes region, with the low-pressure centered over Sudbury, Ontario, Canada at ~7:30am Dec 23rd. During this storm temperatures dropped dramatically across a large swath of the United States, as depicted in the maps below.  Freezing temperatures were experienced as far south as the Gulf of Mexico, with below freezing temps from Corpus Christi, Texas to Gainsville, Florida.

 


Post Contents:

    1. Extent of cold during Winter Storm Elliott
    2. Satellite Images
    3. Various Articles & Photo Essays
    4. See also in Internet Salmagundi
    5. Other Sources

Extent of cold during Winter Storm Elliott

There are three maps included here. All three were compiled by the Webmaster. These maps show the temperature, wind direction and velocity as provided by the National Weather Service. The first two maps are of temperatures experienced during the event. A third map was created after the event to show what more normal temperatures look like.  The first map is from December 23 at 10:45 pm MT, the second is from December 25 at 12:15 am MT, and the third is from December 29 at 11:30 pm MT.

Each map has color-coded circles on each temperature reading. Color-coded lines have been added connecting temperature regions, showing the extent of temperature bands. A legend is provided indicating color-temperature associations.

These are meant to show the extent of the cold as it reached all the way down to the Gulf of Mexico and stretched in the western United States from the Rocky Mountains eastward to the Appalachian Mountains. These are not meant to show the record setting cold temperatures but rather the general extent of the record-setting cold.

Image depicting temperatures and temperature bands during Winter Storm Elliott for December 23, 2022.
Map 1: December 23, 2022  @ 10:45 pm MT – Extent of cold air. Source: NWS. (Click on image, then enlarge for full-size.)
Image depicting temperatures and temperature bands during Winter Storm Elliott for December 25, 2022.
Map 2: December 25, 2022 @ 12:15 am MT – Cold air retreating. Source: NWS. (Click on image, then enlarge for full-size.)
Image depicting temperatures and temperature bands immediately after Winter Storm Elliott for December 29, 2022.
Map 3: December 29, 2022 @ 11:30 pm MT – More normal temperatures. Source: NWS. (Click on image, then enlarge for full-size.)

Extent of cold during Winter Storm Elliott – Uncropped Versions of Dec. 25 & 29

The maps above are all cropped to make comparison between maps easier. Uncropped versions of the original maps (Dec. 25 & 29)  provide information about a larger region but are harder to compare. I’m providing those below because they show conditions in the surrounding regions which is interesting to look at.

Image depicting temperatures and temperature bands during Winter Storm Elliott for December 25, 2022.
Uncropped Map 2: December 25, 2022 @ 12:15 am MT – Cold air retreating. Source: NWS. (Click on image, then enlarge for full-size.)
Uncropped Map 3: December 29, 2022 @ 11:30 p MT – More normal temperatures. Source: NWS. (Click on image, then enlarge for full-size.)

Maps Source:

  • NWS Weather & Hazards maps by Weather & Hazards Data Viewer, National Weather Service, National Oceanic and Atmospheric Administration.

 


Satellite Images

Imagery showing the view from the GOES-East satellite, both Canada (upper) and Continental United States (lower) views on Sunday morning at 12:20 AM Central Time , December 25, 2022.

Satellite Imagery from GOES-East Canada on Dec 25 2022 at 12:20 AM CT. - NOAA/NWS
Satellite Imagery from GOES-East Canada on Dec 25 2022 at 12:20 AM CT. – NOAA/NWS. (Click on image, then enlarge for full-size.)
Satellite Imagery from GOES-East Conus on Dec 25 2022 at 12:20 AM CT. - NOAA/NWS
Satellite Imagery from GOES-East Conus on Dec 25 2022 at 12:20 AM CT. – NOAA/NWS. (Click on image, then enlarge for full-size.)

 

Location of the low pressure on December 23, 2022.

NOAA Surface Pressure Analysis
NOAA Surface Pressure Analysis. Click image to link to Jonathan Erdman’s tweet.
Weather Observations
NWS Weather Data for Sudbury, Ontario, December 23, 2022. Click image to link to David Roth’s tweet.

 


Various Articles & Photo Essays:

 


See also in Internet Salmagundi

Other Sources