Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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306 ACUS01 KWNS 070051 SWODY1 SPC AC 070050 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 PM CDT Mon May 06 2024 Valid 070100Z - 071200Z ...THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS THE SOUTH-CENTRAL PLAINS FROM CENTRAL OKLAHOMA INTO SOUTHEAST KANSAS... ...SUMMARY... A regional outbreak of severe weather with multiple intense (EF3+), long-tracked tornadoes, as well as very large hail and severe thunderstorm gusts, is expected over parts of the south-central Plains this evening into the overnight hours. ...South-Central Plains... Water-vapor imagery depicts a well-defined trough advancing across the central High Plains early this evening. Southern influence of this feature is now beginning to affect northwestern TX/southwestern OK as evident by agitated cu field and towers deepening along the TX/OK border. Latest surface observations depict backing flow into this region, while dew points in the upper 60s to near 70F will soon surge into this deepening cu field. 00z sounding from OUN is very impressive with 3700 J/kg MLCAPE, 400 m2/s2 0-3km SRH, and steep lapse rates. Additionally, weak cap has all but disappeared, as evident by deepening cu field along the I-35 corridor just south of the OKC metro. Low-level shear will continue to increase this evening and supercells are expected to grow upscale across southwestern OK over the next few hours. This activity will spread/develop east/northeast along the I-44 corridor this evening. Threat for strong, long-track tornadoes will increase along this corridor into the mid evening hours. ..Darrow.. 05/07/2024 $$