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Mesoscale Discussion 2202 | |
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Mesoscale Discussion 2202 NWS Storm Prediction Center Norman OK 0837 AM CST Mon Nov 04 2024 Areas affected...central/eastern Oklahoma and north Texas Concerning...Severe potential...Tornado Watch likely Valid 041437Z - 041700Z Probability of Watch Issuance...80 percent SUMMARY...The severe/tornado threat is likely to increase by late morning. DISCUSSION...A very moist airmass is present from north Texas to much of eastern Oklahoma with dewpoints in the upper 60s. This has already yielded 1000 to 1500 J/kg MLCAPE with minimal surface heating. Given the minimal inhibition (per SPC mesoanalysis and regional 12Z RAOBs), expect widespread thunderstorm development by late morning to early afternoon. Moderate instability and strong shear will support supercells capable of all hazards. Parts of central and south-central Oklahoma (near the I-35 corridor) have the greatest uncertainty. Outflow from this mornings storms has advanced east of I-35 with low 60s dewpoints and northerly/westerly flow. However, strong, southerly flow is trying to stall this boundary and lead to northward/westward airmass recovery within this corridor. A tornado watch will eventually be needed, but it is unclear whether the threat will start to increase in the next 1 to 2 hours or closer to mid-day when the primary ascent overspreads the region. Trends will be monitored and a watch will be issued when an organized severe threat appears imminent. ..Bentley/Hart.. 11/04/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TSA...FWD...OUN... LAT...LON 33889847 34679833 35399776 36279652 36399579 36329531 35929498 34839505 34099554 33789591 33519652 33349771 33369825 33489886 33889847 |
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