* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Portions of central, southeast, southwest, and western
Arkansas.
* WHEN…From 2 AM to 8 AM CST Monday.
* IMPACTS…Low visibility could make driving conditions hazardous.
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SPC – No watches are valid as of Tue Apr 22 11:59:01 UTC 2025
No watches are valid as of Tue Apr 22 11:59:01 UTC 2025.
SPC – No MDs are in effect as of Tue Apr 22 11:59:01 UTC 2025
No Mesoscale Discussions are in effect as of Tue Apr 22 11:59:01 UTC 2025.
SPC Apr 22, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0312 AM CDT Tue Apr 22 2025 Valid 251200Z - 301200Z ...DISCUSSION... ...Days 4-5/Fri-Sat -- Central/Southern Plains... An upper ridge will build over the Plains toward the MS Valley this weekend as a deepening upper trough develops over the western U.S. Some lead shortwave impulses will likely migrate through the ridge, and southwesterly flow increases over the central/southern Rockies. At the surface, persistent south/southeasterly low-level flow will maintain a warm advection regime across the southern/central Plains, while a daily surface dryline evolves over the High Plains. While