The Weather Prediction Center

Short Range Forecast Discussion

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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
354 PM EDT Mon Mar 18 2019

Valid 00Z Tue Mar 19 2019 - 00Z Thu Mar 21 2019

...Heavy rainfall expected to persist through Tuesday night in
southern Florida...

...Major to historic river flooding will continue across parts of
the Mississippi and Missouri River Basins...

...Areal flooding is possible in parts of the Northwest to
Northern Plains...

A front lingering near southern Florida and plenty of moisture
will lead to rain across the Florida peninsula, potentially heavy.
A Marginal Risk of excessive rainfall is in place along the
southeastern Florida coast. Rain is forecast to lighten by
Wednesday morning, but cooler than average temperatures will
prevail there.

Snow and rain showers are forecast from the Central Rockies into
the Central Plains Monday night and Tuesday, and rain showers will
move into the Middle/Lower Mississippi Valley and Ohio Valley on
Wednesday due to a low pressure system moving eastward.
Precipitation totals will remain light with this system. An
upper-level trough will move toward the western U.S. by Tuesday
night and Wednesday, first increasing precipitation chances in
California on Tuesday evening and into the Central Great Basin and
Southwest by Wednesday. Generally, rain will fall in lower
elevations, with snow in higher elevations.

Major to historic river flooding is forecast to persist for
portions of the Missouri and Mississippi River Basins as snowmelt
continues over areas that received heavy rainfall last week. Flood
Warnings and Advisories are scattered throughout the Plains,
Mississippi Valley, and western parts of the Ohio Valley region,
with a focus in Nebraska and western Iowa. Farther west and north,
areal flooding is also possible in the Northwest and Northern
Plains as snowmelt continues over frozen ground. Above average
temperatures in the Northern Great Basin and the Northern Plains
will aid in snowmelt. Ice jams are also a threat in some areas.


Graphics available at

Last Updated: 354 PM EDT Mon Mar 18 2019