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Mesoscale Discussion 921 | |
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Mesoscale Discussion 0921 NWS Storm Prediction Center Norman OK 1038 PM CDT Thu May 23 2024 Areas affected...Central and Eastern Nebraska...Far Northern Kansas...Western Iowa Concerning...Severe Thunderstorm Watch 294...297... Valid 240338Z - 240545Z The severe weather threat for Severe Thunderstorm Watch 294, 297 continues. SUMMARY...The wind-damage threat will likely increase as a linear MCS organizes across central and eastern Nebraska over the next couple of hours. The severe threat should eventually affect parts of western Iowa, where additional watch issuance may be needed during the overnight period. DISCUSSION...Mosaic radar imagery currently shows a developing line of strong to severe thunderstorms from far northwest Kansas into central and northeast Nebraska. This line is forecast to begin to accelerate eastward across central and eastern Nebraska over the next couple of hours, as a strengthening low-level jet increases moisture and instability across the central Plains. As the storms move eastward along a west-northwest to east-southeast gradient of moderate to strong instability, the MCS is expected to become increasingly organized. A wind-damage threat will be possible with the stronger parts of the line, and this threat should become more widespread as a large-scale bowing line segment organizes. The wind-damage threat will affect much of eastern Nebraska late this evening, and may affect western Iowa well after midnight. ..Broyles.. 05/24/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...EAX...FSD...OAX...TOP...GID...LBF...GLD... LAT...LON 39589971 39569779 39859683 40279600 41089500 41769487 42269499 42739550 42889648 42809785 42359895 41859949 40990026 40190064 39720029 39589971 |
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