The following is a summary of the strong cold front that affected all of Wyoming. While Star Valley escaped the snow, temperatures dipped to the coldest since last Spring. Both Thayne ES and Double LL Ranch tied for the coldest valley locations with 18F Friday morning.
UPDATED: September 11th Winter Storm Summary…Now with the latest snow and low temperature reports.
A rare September snowstorm impacted areas east of the Divide Wednesday night and Thursday (9/11). The Bighorn Mountains, Buffalo and the Cody Foothills were hardest hit from this storm. Major tree damage and power outages occurred in Buffalo where 7 to as much as 10 inches of heavy wet snow occurred. Here is a YouTube Video showing the aftermath of the storm in Buffalo. This was earliest recorded snowfall for Cody with records going back to 1915 (15 years were missing). Before this snowstorm the earliest snowfall for Cody was September 12th, 1970, when 8 inches of snow fell. Although Buffalo has considerable missing historical data, the earliest snowfall on record occurred on September 6, 1929, when 1 inch of snow fell. However this should be the heaviest recorded snowfall so early in the season for Buffalo. Below are several pictures across northern and central Wyoming.
| Winter Wonderland in Cody
(photo courtsey of Gretchen Papka)
|Deep Snow at French Creek near Buffalo
(photo courtsey of Julie Smith)
|Tree Damage in Buffalo
(photo courtsey of Chris Hattings)
| Slick and hazardous travel over Powder River Pass in the Bighorn Mountains
(photo courtsey of Peggy Peterson)
| Snow on Casper Mountain
(photo courtsey of Hogadon Trails Center)
| First snowman of winter 2014-2015 (summer 2014)
(photo courtsey of Jami Mclean)
A widespread freeze occurred across western and central Wyoming in wake of this rare mid-September snowstorm. If the volunteer observer in Buffalo comes in with a low in the teens similar to the low at Buffalo Airport (19 degrees) it will be the earliest Buffalo has dipped into the teens since records began in 1899. WOW! See all the latest morning low temperature reportshere.
Low Temperature °F on Sept 12, 2014
Record Low °F for Sept 12th
Period of Record
|Airports (unless otherwise noted)|
|Big Piney||17||17 in 2001||1976 – 2014|
|Buffalo||19||34 in 1999||1998 – 2014|
|Buffalo Town||??||24 in 1902||1899 – 2014|
|Casper||25||29 in 1949||1939 – 2014|
|Greybull||30||32 in 1999||1998 – 2014|
|Lander||31||26 in 1902||1891 – 2014|
|Lake Yellowstone||18||25 in 2012||1998 – 2014|
|Riverton||28||38 in 2003||1997 – 2014|
|Riverton Town||28||28 in 1951||1907 – 2014|
|Rock Springs||21||26 in 1951||1948 – 2014|
|Worland||29||31 in 1974||1960 – 2014|