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ACUS11 KWNS 191935
SWOMCD
SPC MCD 191934
PAZ000-OHZ000-MIZ000-INZ000-192330-

Mesoscale Discussion 0030
NWS Storm Prediction Center Norman OK
0134 PM CST Sat Jan 19 2019

Areas affected...Northeast Indiana...far southwest
Michigan...northern Ohio...and far northwest Pennsylvania.

Concerning...Heavy snow

Valid 191934Z - 192330Z

SUMMARY...Moderate to occasionally heavy snowfall continues across
portions of the southern Great Lakes. Snowfall rates are expected to
lessen across northern Indiana over the next few hours, with
increasing snowfall rates across northern Ohio through the afternoon
and into the evening.

DISCUSSION...The moderate to heavy snowfall bands which have set up
across northeast Indiana have persisted into the mid-afternoon.
Water vapor and radar trends suggest snowfall rates will decrease
across this area in the next few hours and taper off into the early
evening. Snowfall rates continue to increase in northern Ohio north
of the rain/snow line. Correlation coefficient radar data from the
KCLE 88D and surface observations show the freezing rain/snow line
has lifted further north over the past few hours and is currently
located just south of Mansfield to near Canton. This rain/snow line
could progress another half a county north or so before stalling as
the 850 flow backs ahead of the approaching surface cyclone, now
around 998mb just west of Nashville. North of this boundary,
snowfall rates will continue to increase with current rates around
0.5 to 1 inch per hour increasing to 1.5 inches per hour or greater
by later this afternoon and into the evening as the mean mixing
ratio increases to above 3 g/kg and lift is maximized north of the
approaching surface low.

..Bentley.. 01/19/2019

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

ATTN...WFO...PBZ...CLE...ILN...DTX...IWX...GRR...

LAT...LON 42088332 42078451 41718522 41288592 40938614 40618560
40558464 40658304 40668234 40678147 40718110 40868046
41158005 41697993 42027999 42138012 42008070 41748133
41588201 41688287 42028318 42088332



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