Hydrologic Outlook issued February 22 at 1:55PM MST by NWS Pocatello ID
ESFPIH Temperatures will gradually warm this weekend into early next week, increasing low elevation snowmelt and runoff, potentially leading to minor lowland flooding. Locations most prone to rapid snowmelt include areas below 6000 ft across the Eastern Magic Valley, Lower Snake Plain, and South Hills. In these areas, the increased runoff on top of frozen or saturated ground may lead to ponding of water or sheet flooding in low lying or poor drainage areas, along with rises on small streams and creeks. These warming temperatures will peak on Monday, with afternoon highs reaching the 50s at lower elevations. Low temperatures
Hydrologic Outlook issued February 22 at 5:15AM MST by NWS Boise ID
ESFBOI Moderate to heavy rain and low elevation snowmelt Sunday and Monday will lead to rises on rivers, creeks, and streams across portions of southeast Oregon and southwest Idaho (particularly the Weiser River Basin). Saturated or frozen soils in some areas will increase runoff. Snow and ice may clog culverts and ditches causing water to back-up and pond in low lying and poor drainage areas. Additionally, ice jams could develop on any rivers, creeks, or streams with existing ice cover and cause localized flooding. Rivers in these areas will continue to run high through next week with some waterways potentially
SPC Feb 23, 2025 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0646 PM CST Sat Feb 22 2025 Valid 230100Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms remain possible from the middle and upper Texas Coast toward the Sabine Valley late today and overnight. ...Discussion... Scattered thunderstorms are currently ongoing from southeast TX into the northwestern Gulf, well north of the surface front. Periodically strong storm cores have been noted, primarily offshore, with indications of small hail. Continued cooling aloft ahead of the shortwave trough moving across TX, as well as persistent southerly
SPC Feb 22, 2025 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0630 AM CST Sat Feb 22 2025 Valid 221300Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms remain possible from the middle and upper Texas Coast toward the Sabine Valley late today and overnight. A few storms could produce some small hail. ...Synopsis... Recent satellite imagery shows a pair of shortwave troughs progressing through the southern stream, with the lead wave moving through the Ozark Plateau and the second wave dropping through AZ towards northern Mexico. The lead wave is forecast to continue
SPC Feb 22, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0252 AM CST Sat Feb 22 2025 Valid 251200Z - 021200Z ...DISCUSSION... At the beginning of the forecast period, dry conditions will be prevalent across the entire Gulf basin. Southerly flow and some moisture return will begin Tuesday and Wednesday before another cold front pushes dry air into the Gulf again early Thursday. This continued dry air across the Gulf will continue to limit moisture availability needed for any severe weather threat. Beyond D8/Sat there is a better signal for ridging across the central Plains and a
Hydrologic Outlook issued February 21 at 11:50AM 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 at least 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
Hydrologic Outlook issued February 21 at 11:55AM 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 5 inches storm total with locally heavier amounts, and snow levels rising above 7000 feet. With moderate temperatures now and warmer temperatures to come, this will also result in some snow melt at low to mid elevations. These factors will combine to result in a potential for river flooding. The most likely areas for river flooding
Hydrologic Outlook issued February 21 at 2:41PM CST by NWS Bismarck ND
ESFBIS Much of North Dakota will be going into late February with consecutive days of unseasonably warm temperatures in the forecast. Highs well above freezing across the southwest and south-central are likely with those warm temperatures decreasing to around freezing, or just above freezing in the northwestern and north-central counties. In short, the modest snowpack south and west of a line from Williams County, through southern Ward County, and on down to Jamestown will melt over the remainder of February into early March. In general, there is not enough water in the above snowpack to warrant significant concerns with flooding.
Hydrologic Outlook issued February 21 at 2:16PM 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 21 at 1:23PM MST by NWS Pocatello ID
ESFPIH Temperatures will gradually warm this weekend into early next week, increasing low elevation snowmelt and runoff, potentially leading to minor lowland flooding. Locations most prone to rapid snowmelt include areas below 6000 ft across the Eastern Magic Valley, Lower Snake Plain, and South Hills. In these areas, the increased runoff on top of frozen or saturated ground may lead to ponding of water or sheet flooding in low lying or poor drainage areas, along with rises on small streams and creeks. These warming temperatures will peak on Monday, with afternoon highs reaching the 50s at lower elevations. Low temperatures