MD 1569 CONCERNING SEVERE POTENTIAL…WATCH POSSIBLE FOR PARTS OF NE…SOUTHEAST SD…AND FAR NORTHWEST IA
Mesoscale Discussion 1569
NWS Storm Prediction Center Norman OK
0441 PM CDT Sat Jul 23 2022
Areas affected...Parts of NE...southeast SD...and far northwest IA
Concerning...Severe potential...Watch possible
Valid 232141Z - 232245Z
Probability of Watch Issuance...60 percent
SUMMARY...Isolated to scattered severe storms capable of large hail
and severe gusts will increase in coverage this afternoon. A watch
issuance is possible.
DISCUSSION...Convective coverage is expected to gradually increase
along a cold front extending across parts of Nebraska this
afternoon. Ahead of the front, lower 70s dewpoints and steep
midlevel lapse rates are contributing to moderate to strong surface
based instability and minimal convective inhibition. In addition,
35-45 kt of effective bulk shear oriented oblique to the surface
front will support embedded organized updrafts along/ahead of the
front capable of isolated large hail and severe gusts. Trends are
being monitored for a possible watch issuance.
..Weinman/Thompson.. 07/23/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...FSD...OAX...GID...LBF...
LAT...LON 40470015 41399903 42229798 42939747 43319694 43139604
42609592 42059618 41669656 40879744 40229821 39969942
40159990 40310005 40470015
