|Mesoscale Discussion 726|
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Mesoscale Discussion 0726
NWS Storm Prediction Center Norman OK
0701 PM CDT Wed May 11 2022
Areas affected...Southern Minnesota
Concerning...Tornado Watch 202...203...
Valid 120001Z - 120100Z
The severe weather threat for Tornado Watch 202, 203 continues.
SUMMARY...A fast-moving bow echo with embedded supercell structures,
along with isolated supercells ahead of the line, will pose a risk
of intense damaging wind gusts and tornadoes over southern Minnesota
(including the MSP metro area) during the next 2 hours.
DISCUSSION...A mature bowing MCS has developed during the past
couple of hours over southwest MN, moving northeastward now at 35-40
knots. Individual storms are tracking north-northeastward, while
the MCS moves eastward along a well-defined surface warm front.
Low-level shear profiles are rapidly strengthening along/north of
the warm front with the latest MPX VAD showing 0-3km SRH of 600-900
m2/s2. It appears likely that the bowing line will remain severe as
it tracks eastward into the MSP metro area between 01-02z. Isolated
cells ahead of the bow may rapidly become supercellular with a
tornado risk, while QLCS tornadoes and corridors of damaging winds
will be possible along the convective line.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 45209341 45129225 44319190 43719216 43089459 43369535
43989519 44869528 45169428 45209341
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