* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Portions of southeast Louisiana and southern Mississippi.
* WHEN…From midnight tonight to 10 AM CST Sunday.
* IMPACTS…Low visibility could make driving conditions hazardous.
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SPC – No watches are valid as of Wed Apr 16 10:53:01 UTC 2025
No watches are valid as of Wed Apr 16 10:53:01 UTC 2025.
SPC – No MDs are in effect as of Wed Apr 16 10:53:01 UTC 2025
No Mesoscale Discussions are in effect as of Wed Apr 16 10:53:01 UTC 2025.
SPC Apr 16, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0351 AM CDT Wed Apr 16 2025 Valid 191200Z - 241200Z ...DISCUSSION... Severe potential remains apparent into the weekend, but predictability wanes substantially by D5/Sunday. ...D4/Saturday... The persistent longwave trough is expected to breakdown as an embedded northern-stream shortwave impulse accelerates east across ON/QC and the basal shortwave impulse moves more gradually east into the southern High Plains. Through Saturday afternoon, an expansive swath of strong mid-level flow will persist from the central Appalachians southwestward into the southern Great Plains. The nearly stalled baroclinic zone from TX/OK