Mesoscale Discussion 1516 NWS Storm Prediction Center Norman OK 0723 PM CDT Sun Aug 16 2020 Areas affected...North-central Kansas Concerning...Severe potential...Watch possible Valid 170023Z - 170200Z Probability of Watch Issuance...40 percent SUMMARY...A new severe thunderstorm watch is possible as a cluster of storms drifts south out of Nebraska DISCUSSION...Storms have quickly congealed into a cluster in southeast Nebraska and have started to accelerate south-southwestward. Expect this storm activity to follow the instability gradient which would take the cluster into north-central and eventually central Kansas. There is some uncertainty how far south this cluster will maintain severe thresholds this evening and into the overnight hours. The air mass south of this activity remains favorable for severe convection with MLCAPE around 3000 to 4000 J/kg per SPC mesoanalysis and effective shear around 40 kts per KUEX VWP which should maintain this cluster for at least a few more hours. If the cluster becomes well organized, it may persist south of watch 443 and 444 and a new watch may be needed. In addition, new convection has recently formed from Jewell to Graham counties and has shown quite robust updraft growth. Therefore, if these storms maintain this intensity as they move southeast, a new watch may need to be issued sooner. These trends will be monitored over the next hour. ..Bentley/Guyer.. 08/17/2020 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OAX...TOP...ICT...GID...DDC...GLD... LAT...LON 39360014 39919889 40169799 40209725 40119689 39759669 39199682 38759724 38519778 38529808 38449885 38529943 38660012 39360014Read more
from SPC Forecast Products http://www.spc.noaa.gov/products/md/md1516.html
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