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Mesoscale Discussion 2193 | |
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Mesoscale Discussion 2193 NWS Storm Prediction Center Norman OK 0240 PM CST Sun Nov 03 2024 Areas affected...Northwest Oklahoma into south-central Kansas Concerning...Severe potential...Watch possible Valid 032040Z - 032245Z Probability of Watch Issuance...40 percent SUMMARY...Thunderstorms will increase in coverage through the late afternoon and evening hours. Scattered strong to severe storms are expected and will pose a risk of large hail, damaging winds, and perhaps a tornado. Trends will be monitored for the need for a watch later this evening. DISCUSSION...Over the past hour, convection has increased in coverage across western OK along the I-40 corridor in response to strengthening low-level warm advection and steady destabilization. MRMS VII and cloud top temperature trends suggest that much of the activity along and north of I-40 remains sub-severe, but signs of intensification have been noted in a few cells. The expectation is thunderstorm coverage will continue to increase as this activity spreads from western OK into northwest OK and south-central KS through the late afternoon and evening hours. While most convection will likely remain elevated, steady warming/moistening in the low levels may support a few surface based storms - especially where temperatures and dewpoints can reach into the low 70s and upper 60s respectively. 40-60 knot mid and upper-level flow over the region is supporting elongated hodographs favorable for supercells with an attendant risk for large hail (most likely between 1.0-1.75 inches) and severe wind gusts. Additionally, the low-level warm advection regime is yielding 0-1 km SRH values between 200-300 m2/s2 (per regional VWPs), which will support a tornado threat if surface-based convection can be realized. While this potential is noted, weak inhibition and persistent ascent will promote scattered thunderstorms with a somewhat high probability for storm interactions and unfavorable storm modes as storms spread north/northeast with time. Trends will be monitored for the need for watch issuance if semi-discrete, surface-based convection can be realized and pose a greater severe threat. ..Moore/Hart.. 11/03/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TSA...ICT...OUN...DDC... LAT...LON 35839987 36069983 37699922 37949889 37999855 37809763 37329671 37059659 36699672 36379694 35989720 35779767 35619840 35489951 35589987 35839987 |
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