SPC MD 1065



MD 1065 CONCERNING SEVERE POTENTIAL…WATCH POSSIBLE FOR EASTERN NE…WESTERN IA

MD 1065 Image

Mesoscale Discussion 1065
NWS Storm Prediction Center Norman OK
1046 PM CDT Tue Jun 30 2020

Areas affected...Eastern NE...Western IA

Concerning...Severe potential...Watch possible 

Valid 010346Z - 010515Z

Probability of Watch Issuance...60 percent

SUMMARY...Severe threat is increasing across eastern NE. Some
consideration is being given to a new ww downstream.

DISCUSSION...Southern influence of strong short-wave trough is
glancing portions of eastern NE late this evening. Convection along
the front has gradually increased and a well-developed squall line
currently extends from Madison County - Hamilton County. This line
is moving east at roughly 20-25kt and should exit ww320 after 06z.
Weak warm advection will continue across the mid-MO Valley tonight,
though shear is not particularly strong, a reservoir of strong
instability resides just downstream. New ww is being considered.

..Darrow.. 07/01/2020

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

ATTN...WFO...EAX...FSD...OAX...GID...

LAT...LON   40479748 42349701 42489600 41079540 40239568 40479748 

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