


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
Versions:
1
2
287 FXUS01 KWBC 150649 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 248 AM EDT Wed Oct 15 2025 Valid 12Z Wed Oct 15 2025 - 12Z Fri Oct 17 2025 ...There is a chance of showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes on Wednesday and Thursday.... ...Heavy snow over parts of the Sierra Mountains on Wednesday and over the Northern Rockies on Thursday... On Wednesday, low pressure over the Great Basin moves northeastward into South-Central Canada by Friday. The associated front moves from the Great Basin to the Upper Mississippi Valley and Central Plains/Southern High Plains by the seventeenth, Friday. The system will create rain over parts of Central California on Wednesday. Meanwhile, rain and higher-elevation snow will develop over the Sierra Nevada Mountains and the Great Basin on Wednesday and the Northern Intermountain Region/the Northern Rockies on Thursday into Friday. Moreover, showers and thunderstorms will develop over parts of the Central/Southern Rockies on Wednesday into Thursday morning. Further, rain will also develop over parts of the Northern/Central Plains, the Middle Mississippi Valley, and the Great Lakes on Wednesday. Rain will continue on Thursday over the Northern Plains, the Middle Mississippi Valley, and the Great Lakes. In addition, the weather will remain unsettled over the Northern Intermountain Region and Northern Rockies on Thursday into Friday. Additionally, weak onshore flow will help develop rain over the Pacific Northwest on Thursday afternoon into Friday. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$