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This is the convective storm outlook for today. A regional outbreak of severe thunderstorms is likely this afternoon into tonight across parts of the mid Mississippi, Ohio and Tennessee Valleys. Everyone in the storm risk areas need to be weather aware today and pay attention to local storm warnings

May 16, 2025, 2:55 PM

{
  "text": "This is the convective storm outlook for today. A regional outbreak of severe thunderstorms is likely this afternoon into tonight across parts of the mid Mississippi, Ohio and Tennessee Valleys. Everyone in the storm risk areas need to be weather aware today and pay attention to local storm warnings",
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        "alt": " A regional outbreak of severe thunderstorms is likely this afternoon\n   into tonight across parts of the mid Mississippi, Ohio and Tennessee\n   Valleys. This will include intense supercells associated with\n   tornadoes, large hail and wind damage. Several strong tornadoes are\n   expected, and a long-track high-end tornado will be possible. From\n   the evening into the overnight, a bowing line segment is expected to\n   form with potential for tornadoes and damaging winds, some possibly\n   greater than 75 mph.\n\n   ...Mid Mississippi and Ohio Valley/Tennessee Valley Region...\n   As an upper-level low near the MN/ND border shifts east today, a \n   mid-level jet streak will move from the Plains into the\n   mid-Mississippi Valley. A surface cold front will move east across\n   the Great Lakes, Midwest and OH/TN Valley region this afternoon and\n   tonight. An expansive warm/moist sector will destabilize during the\n   day, setting the stage for a regional severe weather outbreak this\n   afternoon and tonight.\n\n   Scattered severe thunderstorms, with a history of large hail, were\n   ongoing at 13z from northeast AR into eastern KY. Clusters of severe\n   storms, including supercells, will continue moving northeast within\n   this corridor through at least early afternoon. The eventual\n   longevity of these storms remains uncertain, however downstream\n   diurnal destabilization could allow storms with a severe hail/wind\n   threat to move into WV/western VA this afternoon.\n\n   In the wake of these morning storms, destabilization will occur as a\n   warm front lifts north, with strong instability (MLCAPE in excess of\n   2500 J/kg) developing from portions of eastern MO east into the\n   OH/TN Valley region, and south in advance of the front into eastern\n   TX.  The presence of strong mid-level flow will contribute to\n   deep-layer shear averaging 50 kts or higher across a large area.\n",
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  "createdAt": "2025-05-16T14:55:52.590Z"
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