MD 0556 CONCERNING SEVERE POTENTIAL…WATCH UNLIKELY FOR PORTIONS OF WESTERN INTO CENTRAL SOUTH DAKOTA
Mesoscale Discussion 0556
NWS Storm Prediction Center Norman OK
0826 PM CDT Tue Apr 18 2023
Areas affected...portions of western into central South Dakota
Concerning...Severe potential...Watch unlikely
Valid 190126Z - 190230Z
Probability of Watch Issuance...5 percent
SUMMARY...An isolated severe gust remains possible over the next
couple of hours in association with high-based storms. A WW issuance
is not expected.
DISCUSSION...A loosely organized band of high-based, low-topped
storms continues to progress across western SD with a history of
strong to occasionally severe gusts. Diurnal cooling is underway,
which should limit the overall severe threat through deepening
static stability. Nonetheless, 01Z mesoanalysis shows a corridor of
7-7.5 C/km 0-3 km lapse rates ahead of the ongoing storms. As such,
an instance or two of severe wind gusts remains possible over the
next couple of hours. Given the short-lived, localized nature of the
severe threat, a WW issuance is not expected.
..Squitieri.. 04/19/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...UNR...
LAT...LON 43140338 43760366 44240342 44610263 44820143 44710086
44400042 43980033 43560060 43320129 43070234 43140338
