MD 0679 CONCERNING SEVERE POTENTIAL…WATCH POSSIBLE FOR EASTERN NEBRASKA…WESTERN IOWA
Mesoscale Discussion 0679 NWS Storm Prediction Center Norman OK 0251 AM CDT Sat Jun 09 2018 Areas affected...Eastern Nebraska...Western Iowa Concerning...Severe potential...Watch possible Valid 090751Z - 090945Z Probability of Watch Issuance...40 percent SUMMARY...A wind damage threat will likely continue for a couple more hours across parts of eastern Nebraska. The severe threat may affect Iowa but the wind damage threat with the line is expected to become more isolated with time. Due to the continued severe threat, weather watch issuance still can not be ruled out. DISCUSSION...The latest radar imagery shows an MCS over east-central Nebraska with a well-defined outflow boundary surging southeastward away from the line in southern Nebraska. Over the last hour, several measured severe wind gusts have been observed, notably at Aurora, Kearney and York. Moderate instability is analyzed ahead of the line by the RAP with MLCAPE estimated in the 2500 J/kg near Omaha. This should enable the line to continue to have a wind damage threat for a couple more hours. However, a gradual decrease in the threat is expected to take place as the MCS approaches western Iowa. ..Broyles/Thompson.. 06/09/2018 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...EAX...FSD...OAX...TOP...GID... LAT...LON 42439505 42109439 41689429 41219469 40799522 40139581 39869650 40259739 40859806 41579803 42739659 42439505
from SPC Mesoscale Discussions http://bit.ly/2sHIxBx
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