MD 1775 CONCERNING SEVERE THUNDERSTORM WATCH 505…506… FOR EASTERN PORTIONS OF NEB/KS AND ADJACENT SOUTHWEST IA/NORTHWEST MO
MESOSCALE DISCUSSION 1775
NWS STORM PREDICTION CENTER NORMAN OK
0838 PM CDT MON SEP 07 2015
AREAS AFFECTED...EASTERN PORTIONS OF NEB/KS AND ADJACENT SOUTHWEST
IA/NORTHWEST MO
CONCERNING...SEVERE THUNDERSTORM WATCH 505...506...
VALID 080138Z - 080245Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
505...506...CONTINUES.
SUMMARY...BOUTS OF SEVERE HAIL/WIND WILL REMAIN POSSIBLE THIS
EVENING MAINLY ACROSS SOUTHEAST NEB AND EAST-CENTRAL KS. SEVERE
THUNDERSTORM WATCHES 505/506 CONTINUE UNTIL 02Z/9PM CDT AND 03Z/10PM
CDT RESPECTIVELY...ALTHOUGH A NEW WATCH ISSUANCE /REPLACEMENT/ IS
BEING CONSIDERED FOR EASTERN NEB GIVEN THE CURRENT 02Z EXPIRATION OF
WW 505.
DISCUSSION...THUNDERSTORMS...WHICH ARE LIKELY AT LEAST SLIGHTLY
ELEVATED IN NATURE...HAVE INCREASED IN COVERAGE/INTENSITY OVER THE
PAST HOUR ACROSS SOUTHEAST NEB WITH AID OF AN INCREASING SOUTHERLY
LOW-LEVEL JET AS PER WSR-88D VWP DATA ACROSS KS. THESE STORMS COULD
POSE AT LEAST AN ISOLATED/MARGINAL SEVERE HAIL/WIND RISK BEYOND THE
SCHEDULED 02Z EXPIRATION OF SEVERE THUNDERSTORM WATCH 505. THE 00Z
OBSERVED SOUNDING FROM OMAHA FEATURED MODERATE BUOYANCY AND
RELATIVELY STRONG SHEAR THROUGH THE CLOUD-BEARING LAYER...WHICH
WOULD SUPPORT POTENTIAL FOR A FEW SUPERCELLS CAPABLE OF HAIL...WHILE
SOMEWHAT DRIER AIR JUST ABOVE THE SURFACE COULD ALSO SUPPORT SOME
STRONGER DOWNDRAFTS AS WELL.
FARTHER SOUTH...A CLUSTER OF STORMS WILL CONTINUE TO SPREAD
EAST-SOUTHEASTWARD ACROSS EAST-CENTRAL/SOUTHEAST KS IN GENERAL
VICINITY OF THE KS TURNPIKE THIS EVENING. WHILE OVERALL CONVECTIVE
INTENSITY SHOULD STEADILY WANE AS THE BOUNDARY LAYER COOLS...A
SHORT-TERM WINDOW FOR NEAR-SEVERE-CALIBER WIND GUSTS MAY REMAIN.
..GUYER.. 09/08/2015
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...EAX...OAX...TOP...ICT...GID...
LAT...LON 37309806 38129703 38949722 39559758 40749755 41129587
40339525 39609576 38719538 37849557 37379670 37309806
from SPC Mesoscale Discussions http://1.usa.gov/1XDXZqV
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