SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1016 AM CST Tue Dec 22 2020 Valid 221630Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected through tonight. Relatively dry and stable conditions are expected to preclude organized thunderstorms across the CONUS today. An isolated lightning flash or two is possible in the Black Hills vicinity this afternoon and evening as a strong shortwave trough approaches. This activity should be very sparse, and may not reach sufficient depth for charge separation. ..Hart.. 12/22/2020
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