Hydrologic Outlook issued February 21 at 3:46PM MST by NWS Glasgow MT
ESFGGW Where: All of Northeast Montana. When: Saturday afternoon through the end of February. What: As arctic air pushes east into the central plains, a ridge will move in to bring temperatures above average from Sunday through the end of the week. Although temperatures each night will drop near or below freezing, warm daytime temperatures will increase snowmelt and lead to ponding in low lying areas. There is moderate confidence precipitation amounts are expected to remain below one tenth of an inch Sunday night into Monday night, so little to no impact on runoff is expected from this event. Make
Hydrologic Outlook issued February 21 at 3:52AM PST by NWS Portland OR
ESFPQR An series of frontal systems will bring heavy rainfall to northwest Oregon and southwest Washington this weekend. Rain will begin Saturday afternoon, and intensify overnight through Sunday. This will lead to rises on rivers and creeks, especially along the coast on February 22nd through the 23rd. Main stem rivers may be delayed to respond, and flooding may occur beyond this time frame. There is around a 20-25% chance of the Wilson River, the Grays River, and other localized quick responding coastal rivers of reaching minor flood stage on Sunday. Confidence in flooding is low as the location of heaviest
Hydrologic Outlook issued February 20 at 1:13PM MST by NWS Riverton WY
ESFRIW Low elevation snowpack of around 6 to 12 inches exists across much of the northern portion of the Bighorn Basin including Greybull, Lovell, Powell, and Cody. This snowpack contains an estimated 2 to 4 inches of Snow Water Equivalent (SWE). Temperatures beginning Sunday are expected to climb into the mid 40s to low 50s. The warm temperatures are expected to persist through the middle of next week. The warm temperatures, combined with the significant low elevation snowpack could result in significant melting and injection into local rivers and streams. Ice break up on the Bighorn and Nowood Rivers is
Hydrologic Outlook issued February 20 at 3:59PM PST by NWS Pendleton OR
ESFPDT What: The precipitation and snow melt will lead to rises on area creeks, streams and rivers. Rivers are low enough that only the Naches River at Cliffdell is expected to exceed bankfull early Monday for a few hours and only by a few inches. However, with the heavier periods of rain and snow melt, rapid rises will be possible on smaller streams and creeks as well. Further rises on streams and creeks will be a concern through the weekend into early next week. When: Rain will be ending tonight though more systems will bring rain Friday night through Monday.
Hydrologic Outlook issued February 20 at 3:25AM MST by NWS Billings MT
ESFBYZ An deep and wet snowpack exists across the forecast area after a record setting February snowfall. 1 to 4 inches of water is locked in this snowpack. Much warmer temperatures forecast over the coming days will increase snowmelt, releasing this water. With the ground frozen, water will not be able to soak in and will run off. Water flowing overland and accumulating in low lying areas may result in localized flooding. Water flowing into creeks and streams will increase the potential for ice jam development and may result in additional flooding near waterways. Localized impacts from snowmelt may develop
Hydrologic Outlook issued February 20 at 12:58PM PST by NWS Spokane WA
ESFOTX Where: Spokane, Whitman, Asotin, and Garfield Counties in Washington. Kootenai, Shoshone, Benewah, Latah, Nez Perce, and Lewis Counties in Idaho. What: An atmospheric river will deliver warm, rainy, and breezy weather to the region this weekend into early next week. High temperatures Sunday and Monday will warm into the upper 40s to low 50s. Additionally, rainfall amounts of 0.60 to 1.25 inches in the lowlands and 1 to 2 inches in the mountains are currently forecasted. Rapid lowland snowmelt will lead to rises on area creeks, streams, and rivers. Paradise Creek in Moscow is currently forecasted to reach Minor
Hydrologic Outlook issued February 20 at 12:05PM MST by NWS Missoula MT
ESFMSO Where: Powell, Deer Lodge, and Silver Bow Counties in Montana and Lemhi County in Idaho. What: A significant warm up is expected this weekend into early next week (February 24). High temperatures will reach into the 40s, with overnight temperatures near or above freezing. Rapid lowland snowmelt will lead to ponding of water in low lying areas, especially in areas of poor drainage and/or in basements/crawlspaces. Ice jam releases are also a concern on small streams and/or creeks, and may lead to localized flooding. Rain showers will bring precipitation totals up to 0.20 inches across valley areas Sunday into
Hydrologic Outlook issued February 20 at 6:40AM PST by NWS Spokane WA
ESFOTX Where: Spokane, Whitman, Asotin, and Garfield Counties in Washington. Kootenai, Shoshone, Benewah, Latah, Nez Perce, and Lewis Counties in Idaho. What: An atmospheric river will deliver warm, rainy, and breezy weather to the region this weekend into early next week. High temperatures Sunday and Monday will warm into the upper 40s to low 50s. Additionally, rainfall amounts of 0.60 to 1.25 inches in the lowlands and 1 to 2 inches in the mountains are currently forecasted. Rapid lowland snowmelt will lead to rises on area creeks, streams, and rivers. Paradise Creek in Moscow is currently forecasted to reach Minor
Hydrologic Outlook issued February 20 at 6:19AM PST by NWS Spokane WA
ESFOTX Where: Spokane, Whitman, Asotin, and Garfield Counties in Washington. Kootenai, Shoshone, Benewah, Latah, Nez Perce, and Lewis Counties in Idaho. What: An atmospheric river will deliver warm, rainy, and breezy weather to the region this weekend into early next week. High temperatures Sunday and Monday will warm into the upper 40s to low 50s. Additionally, rainfall amounts of 0.60 to 1.25 inches in the lowlands and 1 to 2 inches in the mountains are currently forecasted. Rapid lowland snowmelt will lead to rises on area creeks, streams, and rivers. Paradise Creek in Moscow is currently forecasted to reach Minor
Hydrologic Outlook issued February 20 at 3:09PM PST by NWS Seattle WA
ESFSEW A series of storms will begin to impact western Washington on Friday and continue through Tuesday. The next storm on Saturday will have heavy rain at times as will a third storm right on its heels Sunday. Precipitation amounts could be 3 to 8 inches storm total with snow levels rising above 6000 feet. With moderate temperatures now and warmer temperatures to come, this will also result in a some snow melt at low to mid elevations. These factors will combine to result in a potential for river flooding. At this time the most likely flood severity will be