MD 1905 CONCERNING SEVERE THUNDERSTORM WATCH 520… FOR CENTRAL KANSAS AND SOUTH-CENTRAL NEBRASKA
Mesoscale Discussion 1905
NWS Storm Prediction Center Norman OK
1249 PM CST Sun Dec 25 2016
Areas affected...central Kansas and south-central Nebraska
Concerning...Severe Thunderstorm Watch 520...
Valid 251849Z - 252045Z
The severe weather threat for Severe Thunderstorm Watch 520
continues.
SUMMARY...A fast-moving line of showers and thunderstorms will track
across the remainder of WW 520 between now and 22z. Strong and
locally damaging wind gusts will likely continue to occur.
DISCUSSION...Latest radar loop shows a solid convective line
extending from central NE into northwest OK. The line is moving
eastward at 30 knots, while individual thunderstorm elements track
northeastward at 50-65 knots. Local VAD profiles indicate 50-60
knot flow at 1km AGL, and several small-scale bowing segments and
small embedded circulations have been noted along the line. These
features have resulted in a few localized instances of damaging wind
gusts. However, the majority of the winds along the line have been
below severe limits. Lightning trends suggest that large-scale
subsidence is occurring over OK and most of KS, with CG lightning
now being detected only from the NE border northward.
Present indications are that the line will remain only marginally
severe, but will continue to pose a risk of gusty and locally
damaging winds for several more hours as it tracks across WW 520.
Given current trends, additional downstream watches are not
anticipated at this time.
..Hart.. 12/25/2016
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OAX...TOP...ICT...OUN...GID...
LAT...LON 40129833 40299772 39989678 38139635 37079671 36999771
37169821 38439816 40129833
from SPC Mesoscale Discussions http://bit.ly/2hletGS
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