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From | To | Subject | Date/Time | |||
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Mike Powell | All | Severe Potential MO/IL |
March 30, 2025 12:27 PM * |
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MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN ACUS11 KWNS 301604 SWOMCD SPC MCD 301604 ILZ000-MOZ000-301800- Mesoscale Discussion 0296 NWS Storm Prediction Center Norman OK 1104 AM CDT Sun Mar 30 2025 Areas affected...East-central/southeast Missouri...southern Illinois Concerning...Severe potential...Watch likely Valid 301604Z - 301800Z Probability of Watch Issuance...80 percent SUMMARY...A watch will likely be needed, particularly for areas near and east of the Mississippi River. All severe hazards are possible with a mix of linear segments and supercells. DISCUSSION...A prominent shortwave trough is evident on water vapor imagery in central Missouri. Tied to this feature, weak convection has been slowly deepening in parts of eastern Missouri as it moves northeastward. Downstream of this, temperatures in southern/central Illinois have risen into the low 70s F given the more broken cloud cover. The general consensus of short-term CAM guidance is that convection will strengthen in the vicinity of the Mississippi River. This seems reasonable given current environmental trends. That being said, the need for a watch in the short term is not entirely certain. Potential for a watch in the next couple of hours, particularly for portions of southern Illinois, are higher than points to the west. Storm mode is expected to be a mix of linear segments, especially with northward extent, and some supercells (more likely towards the Ohio Valley). Steep mid-level lapse rates will support large to very-large hail with initial or sustained supercells. Fast moving storms and enhanced low-level flow will promote swaths of wind damage. The tornado threat is somewhat less clear, but will be maximized with any discrete storms. Line-embedded circulations/QLCS tornadoes are also possible given sufficient low-level hodograph curvature. A strong tornado or two could occur. A watch will likely be needed by early afternoon. Exact timing is not clear and some locations west of the River may not destabilize enough in the short term for an organized severe threat. ..Wendt/Smith.. 03/30/2025 ATTN...WFO...PAH...ILX...LSX...SGF... LAT...LON 37079078 37259107 37579124 38099134 38649120 39069083 39749035 40118977 40188936 40118870 39698827 38438813 37738856 37128987 37079078 MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN $$ --- SBBSecho 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (618:250/1) |
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