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  • Posts

    • Severe Thunderstorm Warning issued August 31 at 7:54PM EDT until July 31 at 9:00PM EDT by NWS View the full article
    • Special Weather Statement issued August 17 at 3:46PM EDT by NWS View the full article
    • MD 1770 CONCERNING SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY FOR NORTHEAST CO...SOUTHWEST NE AND NORTHWEST KS Mesoscale Discussion 1770 NWS Storm Prediction Center Norman OK 0234 PM CDT Sat Aug 17 2019 Areas affected...northeast CO...southwest NE and northwest KS Concerning...Severe potential...Severe Thunderstorm Watch likely Valid 171934Z - 172130Z Probability of Watch Issuance...80 percent SUMMARY...Thunderstorms capable of strong, damaging gusts and hail will increase in the coverage through the afternoon and shift east/southeast through this evening. DISCUSSION...Isolated thunderstorms were developing this afternoon near the higher terrain of north-central CO as a subtle shortwave impulse ejects across the area. Surface dewpoints increase from meager 30s F near the I-25 corridor to the mid 60s just east of the CO/NE/KS tri-state area. Meanwhile, a plume of very steep midlevel lapse rates reside across the region, resulting in MLCAPE values increasing from around 500-1000 J/KG near the Palmer Divide to 2000 J/kg across parts of western into central KS/NE. With continued destabilization, high-based convection is expected to increase in coverage. On the southern fringes of strong deep-layer flow, bulk shear values around 25-35 kt should help to sustain organized cells. While steep lapse rates will support hail production, damaging wind is also possible. Strong downdrafts/downward transport will be supported by a deeply-mixed sub-cloud layer and light low level winds. As such, a swath of damaging wind is possible across parts of southwest NE/northeast CO/northwest KS this afternoon and evening. A severe thunderstorm watch likely will be needed in the next couple of hours. ..Leitman/Grams.. 08/17/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GID...LBF...GLD...PUB...BOU...CYS... LAT...LON 41810257 41590190 41290117 40560005 39859982 39270012 38800069 38750159 38840297 38950425 39200460 39870475 41060437 41620408 41830353 41810257 Read more View the full article
    • Special Weather Statement issued August 17 at 3:31PM EDT by NWS View the full article
    • Special Weather Statement issued August 17 at 3:06PM EDT by NWS View the full article
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