SPC MD 1136

MD 1136 CONCERNING SEVERE THUNDERSTORM WATCH 340... FOR CENTRAL THROUGH EASTERN NORTH DAKOTA

Mesoscale Discussion 1136
NWS Storm Prediction Center Norman OK
1109 PM CDT Tue Jul 07 2020

Areas affected...central through eastern North Dakota

Concerning...Severe Thunderstorm Watch 340...

Valid 080409Z - 080515Z

The severe weather threat for Severe Thunderstorm Watch 340
continues.

SUMMARY...Damaging wind remains likely with squall line moving
through central North Dakota. A new severe thunderstorm watch will
likely be needed prior to 06Z for eastern North Dakota.

DISCUSSION...Squall line continues moving east through central ND at
40-45 kt. The line should approach the eastern bound of the WW by
06Z. The strongest and most organized portion of the line is just
west of Bismark where latest Radar data indicate presence of a 65 kt
rear inflow jet. Moreover the latest Bismark VWP show the low-level
jet has strengthened to near 45 kt southeasterly. Strong forcing
along the leading gust front will sustain a forward propagating MCS
next few hours through the remainder of ND where MLCAPE is on the
order of 1500-2000 J/kg. Warm advection storms are also developing
east of the line, and these could pose a risk for isolated large
hail.

..Dial.. 07/08/2020

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...FGF...BIS...

LAT...LON   46050141 46830157 47680215 48690120 48699948 47349702
            46049727 46050141 

Read more

from SPC Forecast Products http://www.spc.noaa.gov/products/md/md1136.html