SPC Dec 15, 2020 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1001 AM CST Tue Dec 15 2020 Valid 151630Z - 161200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible this evening and tonight over the central Gulf Coast region. ...Southeast LA... A large upper trough is digging across the central/southern Plains today, with low-level cyclogenesis expected later today and tonight over the western Gulf of Mexico. Considerable thunderstorm activity is forecast to occur off the TX/LA coast late tonight as the surface low tracks near the coast. One or two of the warm-sector storms could approach the Delta region of southeast LA after midnight. While there would be some conditional risk of damaging winds or a brief tornado with this activity, the very small temporal/areal window of opportunity suggests the overall risk is less than 5%. ..Hart.. 12/15/2020
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