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Mesoscale Discussion 2030 | |
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Mesoscale Discussion 2030 NWS Storm Prediction Center Norman OK 0235 PM CDT Thu Aug 29 2024 Areas affected...Eastern Nebraska into western Iowa Concerning...Severe potential...Watch unlikely Valid 291935Z - 292130Z Probability of Watch Issuance...20 percent SUMMARY...Storm coverage along the cold front should continue to increase in eastern Nebraska and eventually western Iowa. The slow push eastward of storms and potential for outflow does increase uncertainty in how organized the damaging wind threat will be. Trends will be monitored, but a watch is not expected currently. DISCUSSION...Convection has developed along the cold front in south-central Nebraska. Additional storms are likely to develop along the boundary through the afternoon given the destabilization (particularly southeast Nebraska) evident on visible satellite. With shear vectors roughly parallel to the front, storm mode should be decidedly linear. It is possible for a supercell or two to be embedded in the line, especially with northern extent. The main hazard should be damaging winds with isolated large hail more conditional on a discrete storm mode. In northwest Iowa and south-central Nebraska, outflow from convection is evident on KFSD/KUEX radar imagery. With similar potential for outflow pushing away from storms and the frontal motion continuing to the east, there is some chance many storms will be slightly elevated in nature and for corridors of greater wind damage potential to be dependent on mesoscale outflow surges. ..Wendt/Guyer.. 08/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...FSD...OAX...GID... LAT...LON 40109890 40549876 42149800 42319785 42559754 42649631 42499533 41939512 40319637 40069746 40069806 40109890 |
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