MD 1020 CONCERNING SEVERE THUNDERSTORM WATCH 325… FOR PORTIONS OF CENTRAL KS…SOUTH-CENTRAL INTO EASTERN NE…AND FAR WEST-CENTRAL IA
Mesoscale Discussion 1020
NWS Storm Prediction Center Norman OK
0748 PM CDT Tue Jun 13 2017
Areas affected...Portions of central KS...south-central into eastern
NE...and far west-central IA
Concerning...Severe Thunderstorm Watch 325...
Valid 140048Z - 140215Z
The severe weather threat for Severe Thunderstorm Watch 325
continues.
SUMMARY...Thunderstorms that have erupted along a dryline will
continue to pose a threat for scattered large hail and damaging
winds through the remainder of the evening as they move
east-northeastward across WW 325.
DISCUSSION...A line of storms quickly developed along a dryline
across south-central NE from 2330Z to 0045Z, with embedded
supcercells producing multiple reports of large hail, some greater
than 2 inches in diameter. This ongoing convection will develop
eastward into eastern NE and more of north-central KS over the next
several hours, where a very unstable airmass (MLCAPE around 3250
J/kg per 00Z Omaha NE sounding) will prove more than adequate to
maintain current severe-caliber storm intensities. Recent radar
trends from the KOAX radar suggest a bowing segment may be forming
across eastern NE, with strong 70+ kt inbound velocities noted
around 7000 ft AGL. Scattered damaging winds will likely become the
main threat across most of WW 325 though the remainder of the
evening as this line of storms moves east-northeastward with time,
although large hail will continue to be possible with any embedded
supercell.
..Gleason.. 06/14/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OAX...TOP...ICT...GID...
LAT...LON 39209953 42249760 42159575 41559574 39159698 38989745
38329849 38349897 39189899 39209953
from SPC Mesoscale Discussions http://bit.ly/2syQkD4
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