Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 AM EDT Fri Oct 21 2022 Valid 12Z Fri Oct 21 2022 - 12Z Sun Oct 23 2022 ...Early season heavy wet snow event for higher elevations from parts of the Cascades to the Northern/Central Rockies and the eastern Great Basin... ...Temperatures will be 10 to 25 degrees above average over parts of the Great Basin to the Central/Southern Plains... ...There is a Critical Risk of fire weather over parts of the Great Basin and Northern/Central Rockies... A front over the Pacific Northwest will move southward on Friday as a deep upper-level trough develops over the Great Basin by Sunday. Overnight Friday, the front will starts to move rapidly southward to Southeastern California by Sunday. The boundary will produce light rain over parts of the Pacific Northwest on Friday morning. The rain and higher-elevation wet snow will expand into the Northern Rockies by Friday afternoon. On Saturday evening, the rain and higher-elevation wet snow will expand into parts of the Great Basin and Central Rockies and continue into Sunday. The higher-elevation snow will result in reduced visibility and hazardous driving conditions. The winter weather has prompted Winter Storm Watches over parts of the Northern Rockies into the Eastern Great Basin from Friday evening into Sunday morning. Ahead of the front, Temperatures will be 10 to 25 degrees above average over parts of the Great Basin to the Central/Southern Plains on Friday. Dry downslope flow will produce strong gusty wind, and low relative humidity will create dangerous fire weather conditions. Therefore, the SPC has issued a Critical Risk of fire weather over parts of northern Nevada and south-central Wyoming through Saturday morning. The fire weather conditions prompted Red Flag Warnings over the region. Meanwhile, weak low pressure and associated front off the Southeast Coast will steer moisture into the Southeast/Mid-Atlantic, producing light rain over parts of the Florida Peninsula on Friday. Overnight Saturday, the moisture will produce light rain over parts of the North Carolina Coast and parts of southeastern Virginia by Sunday morning. Ziegenfelder Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php