MD 0309 CONCERNING TORNADO WATCH 59… FOR CENTRAL AND EASTERN KANSAS…SOUTHEAST NEBRASKA…SOUTHWEST IOWA…FAR NORTHWEST MISSOURI
Mesoscale Discussion 0309
NWS Storm Prediction Center Norman OK
0724 PM CDT Tue May 01 2018
Areas affected...Central and Eastern Kansas...Southeast
Nebraska...Southwest Iowa...Far Northwest Missouri
Concerning...Tornado Watch 59...
Valid 020024Z - 020230Z
The severe weather threat for Tornado Watch 59 continues.
SUMMARY...A severe threat with potential for tornadoes, wind damage
and large hail, will continue over the next few hours across parts
of east-central Kansas, southeast Nebraska and southwest Iowa. A new
weather watch downstream into parts of eastern Kansas, northwest
Missouri and far southern Iowa will need to be considered as the 03Z
expiration of tornado watch 59 approaches.
DISCUSSION...The latest radar imagery shows a corridor of widely
spaced discrete supercells from south of Lincoln, NE
south-southwestward into central Kansas to near the Oklahoma state
line southeast of Dodge City, KS. The airmass ahead of the storms is
moderately unstable with surface dewpoints in the lower to mid 60s
F. This combined with steep mid-level lapse rates and 0-6 km shear
in the 45 to 55 kt range as evidenced by the Wichita, KS and
Hastings, NE WSR-88D VWPs, will be favorable for supercells with
large hail. Hailstones of greater than 2 inches in diameter will be
possible with the more intense supercells over the next hour or two
but this threat should diminish later this evening. The RAP is also
analyzing a 45 to 55 kt low-level jet across the eastern part of the
tornado watch. As this feature continues to increase, a tornado
threat will be maintained through mid evening. A strong tornado or
two will be possible across north-central Kansas where low-level
shear appears to be maximized. Wind damage will also be likely with
supercells and bowing line segments. The severe threat could affect
the far eastern part of the tornado watch across eastern Kansas in
the 10 to 11 pm CDT timeframe where a new weather watch may be
considered later this evening.
..Broyles/Edwards.. 05/02/2018
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DMX...EAX...OAX...TOP...ICT...GID...DDC...
LAT...LON 37859687 37349727 37129798 37119904 37309928 37599923
38099900 39359846 39879813 40819765 41199731 41699637
41799525 41589487 41179456 40729460 39459569 38529655
37859687
from SPC Mesoscale Discussions http://bit.ly/1OHYf2Q
Be First to Comment