MD 1494 CONCERNING SEVERE THUNDERSTORM WATCH 469…471… FOR SOUTHEASTERN MINNESOTA…NORTHERN IOWA…AND FAR WESTERN WISCONSIN
Mesoscale Discussion 1494
NWS Storm Prediction Center Norman OK
0935 PM CDT Mon Jul 10 2023
Areas affected...Southeastern Minnesota...northern Iowa...and far
western Wisconsin
Concerning...Severe Thunderstorm Watch 469...471...
Valid 110235Z - 110330Z
The severe weather threat for Severe Thunderstorm Watch 469, 471
continues.
SUMMARY...Severe threat continues within WW471.
DISCUSSION...A line of thunderstorms moving across southeastern
Minnesota has been producing severe hail, generally 1-1.75 inches,
over the last hour. This broken line of storms further intensified
as it absorbed a northward moving outflow. As this tracks southward
further into WW471, potential for more severe hail is likely with
secondary potential for scattered damaging winds. Given the
uncertainty of the downstream environment, with overturn and
mid-level CIN from previous storms, it is not clear how long this
line will maintain severe characteristics extending into WW469. The
severe threat will persist across southern Minnesota into northern
Iowa over to far western Wisconsin over the next 1-2 hours.
..Thornton/Guyer.. 07/11/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ARX...MPX...DMX...
LAT...LON 43859440 44089416 44189356 44339296 44379245 44359204
44369175 44359144 44329109 44099099 43989095 43859091
43639086 43499087 43409088 43339093 43169106 43139110
42979139 42959172 42909218 42809274 42819319 42809347
42859378 42899402 42979421 43169432 43359447 43859440
