MD 0469 CONCERNING SEVERE THUNDERSTORM WATCH 134… FOR SOUTH-CENTRAL INTO SOUTHEAST NEBRASKA
Mesoscale Discussion 0469
NWS Storm Prediction Center Norman OK
0747 PM CDT Sun Apr 09 2017
Areas affected...South-central into southeast Nebraska
Concerning...Severe Thunderstorm Watch 134...
Valid 100047Z - 100215Z
The severe weather threat for Severe Thunderstorm Watch 134
continues.
SUMMARY...An isolated severe-weather threat, with hail and locally
strong wind gusts being the primary threats, will continue until 8-9
PM CDT. After that time, the primary storm that has been producing
severe reports across southern NE should weaken after 9 PM CDT. A
new WW is not expected to the east of WW 134, though a severe event
could occur into Saline and/or Jefferson Counties before the storm
weakens.
DISCUSSION...At 0030Z, mosaic radar imagery indicated the storm in
Clay and Nuckolls Counties NE has decreased its forward speed to
around 30 kt as it approaches the cold front which extends from just
southeast of KOMA to central Nuckolls County and through KS to
southeast CO. Although this storm has a history of producing severe
wind gusts and hail up to the size of golf balls, the environment
downstream appears to be less conducive to sustaining updrafts.
Modifying the TOP and OMA 00Z soundings with the surface
temperature/dewpoint at BIE of 75/50 F indicated strong
surface-based inhibition that would limit the sustainability of the
ongoing storm to the east of WW 134.
..Peters/Guyer.. 04/10/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OAX...TOP...GID...
LAT...LON 40109821 40589823 40779798 40729709 40619644 40359627
40029633 39939680 39939763 40109821
from SPC Mesoscale Discussions http://bit.ly/2nS6ktn
Be First to Comment