SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1215 PM CDT Mon Aug 02 2021 Valid 031200Z - 041200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER EASTERN OREGON... ...SUMMARY... Isolted strong to damaging wind gusts will be possible later Tuesday afternoon and early evening over eastern Oregon. A few strong storms with gusty winds may occur over a portion of the Gulf Coast States Tuesday, but overall severe potential appears limited. ...Eastern Oregon... Upper ridge will remain centered over the Southwest States Tuesday, and potential will exist for weak impulses to move through OR along the northern periphery of this feature. A weak front will move east into central OR during the day. East of this boundary dewpoints will mix down into the 40s F with strong diabatic heating and steep lapse rates supporting 300-600 J/kg MLCAPE. Isolated to widely-scattered thunderstorms will likely develop as the atmosphere destabilizes during the mid to late afternoon. These storms will be high-based with updrafts rooted near 600 mb. Very steep lapse rates and deep inverted-v thermodynamic profiles in the sub-cloud layer will support a threat for isolated downbursts with some of this activity through early evening. ...Gulf Coast States... Multicell thunderstorms will once again develop along and south of a near-stationary front from southern TX through the Gulf Coastal area into the Carolinas. Anticipated widespread clouds and ongoing areas of thunderstorms will limit substantial destabilization over most of this region. Where pockets of heating can occur, some potential will exist for storms to produce a few locally strong gusts. However, the overall severe threat in this area will remain low. ..Dial.. 08/02/2021
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