Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >
Overview
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Persistent bands of heavy snow set up across the northern Big Horn Basin Tuesday. A 10 to 15 mile wide area of 4 to 8 inches of snow occurred from about 10 miles northwest of Cody east to Powell then northeast to Cowley and Lovell. This heavy area of snow then shifted south and east during the late afternoon and evening, but was more progressive with much lighter snowfall totals across central and southern Big Horn Basin. Snow fell over a large portion of Johnson and Natrona Counties, as well as a central and northern sections of the Wind River Basin. This was the first snowfall of the season in many locations. Below are visible satellite images showing snowfall Wednesday. The bottom left image was taken at 1030 AM, and the bottom right image was taken at 1 PM Wednesday. The area which had 1 to 3 inches quickly melted, but the 4 to 8 inches (inside purple dots) took much longer to melt. |
 Snowing piling up in Lovell Tuesday. Courtesy of Gary N. |
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| Visible Satellite image at 1030 AM Wednesday morning. Area outlined in green had 1-3 inches while the purple outline shows where 4-8+ inches fell. | Visible Satellite image at 1 PM Wednesday morning. Area outlined in green had 1-3 inches while the purple outline shows where 4-8+ inches fell. |
Snow/Ice
...Snow Reports for Tuesday and Tuesday Evening... Note: SNOTELS (Snow Telemetry) are remote sensing sites in high mountain watersheds. Snowfall data from SNOTELS are estimated based on snow water equivalent. Location Snowfall Big Horn County... 2 SSW Lovell... 9 inches. Lovell... 7 to 8 inches. 7 SW Powell... 7 inches. Cowley... 7 inches. Bald Mountain Snotel... 2 inches. Bone Springs Divide Snotel... 2 inches. Shell Creek Snotel... 2 inches. 9 NNW Shell... 1.5 inches. Basin... 0.8 inches. Greybull... 0.3 inches. Fremont County... 14 NW Riverton... 1 inch. Riverton Airport... 0.1 inches. Riverton Town... Trace. Hot Springs County... Owl Creek Snotel... 1 inch. 9 NE Thermopolis... 0.2 inches. Johnson County... Hansen Sawmill Snotel... 5 inches. Bear Trap Meadow Snotel... 4 inches. Cloud Peak Reservoir Snotel... 3 inches. 4 SSW Buffalo... 1 inch. Buffalo... 1 inch. Natrona County... Grave Spring Snotel... 1 inch. Reno Hill Snotel... 1 inch. 1 S Casper... 0.5 inches. Midwest... 0.3 inches. 10 WSW Casper... 0.2 inches. Casper Airport... Trace. Park County... 4 ENE Powell... 6.5 inches. Beartooth Lake Snotel... 6 inches. Marquette Snotel... 6 inches. Blackwater Snotel... 6 inches. Evening Star Snotel... 6 inches. 4 SW Powell... 5 inches. Powell... 2 to 5 inches. Cody... 2 to 3 inches. Pahaska... 3 inches. 4 SE Cody... 2.5 inches. 26 SW Cody... 2.5 inches. Wolverine Snotel... 2 inches. Wapiti... 1 inch. Timber Creek Snotel... 1 inch. 3 NE Sunshine... 0.8 inches. Washakie County... 16 SSE Ten Sleep... 1 inch. Powder River Pass Snotel... 1 inch. Ten Sleep... 0.6 inches. 5 NNW Ten Sleep... 0.5 inches. Winchester... 0.5 inches. 8 SW Worland... 0.5 inches. Yellowstone National Park... Yellowstone East Entrance... 2 inches.
Photos:
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| Snowing in Cody Tuesday evening. | 6 inches of snow on top of a vehicle about 7 miles southwest of Powell (source: Trent R.) |
A dusting of snow at Midvale Wednesday morning (source: Ernie O.) |
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