SPC Jan 4, 2025 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1133 PM CST Fri Jan 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible early Sunday morning across parts of the southern and central Plains eastward across the Ozarks. No severe weather is expected. ...Central Plains to Arkansas... Strong short-wave trough is forecast to advance across the Great Basin early in the period, then into the central/southern High Plains by 05/12z as a 500mb speed max translates through the base of the trough into western OK. This will
Hydrologic Outlook issued January 2 at 2:38PM PST by NWS Seattle WA
ESFSEW Multiple weather systems will move across western Washington Friday through the weekend, bringing heavy precipitation at times to the Olympic Peninsula. Heaviest amounts are forecast over the southwestern slopes of the Olympic Mountains, with 2 to 4 inches of rainfall expected during this period. This will result in the potential for the Skokomish River to rise above flood stage over the weekend. Snow levels will initially be between 5000 to 6000 feet on Friday, and will drop between 3500 to 4500 feet Saturday and Sunday. Please monitor the latest river forecasts from the National Weather Service for additional information.
SPC Jan 3, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0129 PM CST Fri Jan 03 2025 Valid 051200Z - 061200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EAST TEXAS TO MISSISSIPPI... ...SUMMARY... Severe thunderstorms will be possible Sunday afternoon and evening from the Sabine River Valley into the lower to mid Mississippi Valley. Severe gusts and a few tornadoes are expected to be the primary threats. ...Synopsis... A gradually deepening upper low, progged to reside initially in the OK/TX Panhandle area, is expected to move steadily eastward -- roughly along the Oklahoma/Kansas
SPC Jan 3, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1127 AM CST Fri Jan 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible early Sunday morning across parts of the southern and central Plains eastward across the Ozarks. No severe weather is expected. ...Discussion... While a deep upper low will remain over eastern Canada and New England Saturday, the main feature aloft associated with the primary convective potential will be a short-wave trough initially over the Great Basin vicinity. This feature is forecast to strengthen with time
SPC Jan 3, 2025 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1007 AM CST Fri Jan 03 2025 Valid 031630Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur this afternoon and evening over parts of the coastal Pacific Northwest and northern California. Severe thunderstorms are not expected. ...Synopsis... Surface high pressure from the Rockies to the Southeast will result in a dry and stable airmass for much of the CONUS, precluding thunderstorm activity. The exception may be along portions of the Northwest coastal vicinity. Isolated thunderstorms are possible this afternoon and
SPC Jan 3, 2025 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1249 AM CST Fri Jan 03 2025 Valid 041200Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible early Sunday morning across parts of the southern and central Plains eastward into the Ozarks. No severe weather is expected. ...DISCUSSION... A mid-level trough will move from the Intermountain West Saturday morning to the southern Plains early Sunday morning. Low-level moisture advection will take place across the southern and central Plains, ahead of the approaching trough. In response, weak instability is expected to develop
SPC Jan 3, 2025 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 PM CST Thu Jan 02 2025 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur this afternoon and evening over the coastal Pacific Northwest into interior northern California. Severe weather is not expected. ...Pacific Northwest... Upper ridge will shift east into the Rockies later this afternoon as a strong trough advances inland along the Pacific northwest. Latest guidance suggests 120-150m, 12hr height falls will overspread this region, coincident with highly diffluent flow aloft. Very cold mid-level temperatures, and
Hydrologic Outlook issued January 1 at 6:27PM CST by NWS Bismarck ND
ESFBIS Colder temperatures will continue over the region through the weekend, with cold weather remaining in the forecast for the foreseeable future. This will once again cause ice to form on the Missouri River. While the river came close to icing-in just before Christmas, a return to warmer weather reversed that trend and removed some ice from the Bismarck and Mandan area. This time around, there is much less room in the river to store ice below the University of Mary, so the icing-in will likely occur very quickly once it starts. While it is impossible to predict exactly when
SPC Jan 2, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1118 AM CST Thu Jan 02 2025 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning flashes may occur Friday afternoon and evening over the coastal Pacific Northwest. Severe weather is not expected. ...Synopsis... The pattern on Friday will feature an upper trough over the eastern CONUS, with a western ridge breaking down late. The shortwave trough responsible for the ridge breakdown will provide rapid cooling aloft late in the day from northern CA into western WA and OR, and overnight across
SPC Jan 2, 2025 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1021 AM CST Thu Jan 02 2025 Valid 021630Z - 031200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected through tonight. ...Synopsis... In the mid levels, The general pattern is forecast to slowly amplify as weak troughing with broad cyclonic flow will persist over the eastern 2/3rds of the CONUS. At the same time, ridging will intensify over the West. This will favor increasingly strong (80-100 kts) northwesterly flow over the central US. As a result, strong high pressure at the surface is expected