Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0722 PM CDT Sat Apr 18 2026 Valid 190100Z - 191200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are unlikely through tonight. ...Synopsis... Little thunderstorm activity is currently present near the cold front moving across NY and PA, with only isolated lightning flashes across WV into western VA. Given the loss of heating, and already minimal instability present, severe storms appear unlikely to develop. Farther south, scattered storms exist over northern AL near the front, and north of the boundary from LA into central TX. In both these areas, instability is weak, and generally should not support a severe threat as the surface air mass cools. ..Jewell.. 04/19/2026Read more