ACUS11 KWNS 191818
SWOMCD
SPC MCD 191818=20
IAZ000-NEZ000-200015-

Mesoscale Discussion 0099
NWS Storm Prediction Center Norman OK
1218 PM CST Thu Feb 19 2026

Areas affected...Eastern Nebraska and western Iowa

Concerning...Heavy snow=20

Valid 191818Z - 200015Z

SUMMARY...Heavy snow is expected to develop eastward into eastern
Nebraska through the afternoon and reach western Iowa this evening.=20
Snowfall rates could exceed 1 inch per hour for a few hours.

DISCUSSION...A midlevel shortwave trough and associated low-midlevel
ascent will spread eastward from central into eastern NE through the
remainder of the afternoon. An initially dry column with a small
warm nose will cool/saturate as precipitation forms and increases in
intensity from west-to-east, with snow expected to be the primary
precipitation type as a result of wet bulb temperatures well below 0
C. Focused ascent through the dendritic growth layer (driven
primarily by warm advection/frontogenesis 850-600 mb) will support
snowfall at or above 1 inch per hour later this afternoon/evening.

..Thompson.. 02/19/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9BqJ9erRNuiLtEMJXwcO1JaF1medDbLSOo3ONRSlOsfhN5IkiSRTm1weBcoAJgEjDYAOYRti4= jBLLK5SYXmZkt_UkBk$ for graphic product...

ATTN...WFO...DMX...FSD...OAX...GID...LBF...

LAT...LON 41799835 42109777 42249638 42209567 41979531 41439514
41159540 41079627 41139780 41489833 41799835=20


=3D =3D =3D
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