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2 products issued by NWS for: 2 Miles NW Rockford IL
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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
449 AM CDT Fri Apr 28 2017

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
291000-
Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
449 AM CDT Fri Apr 28 2017 /549 AM EDT Fri Apr 28 2017/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...Today and Tonight.

WEATHER HAZARDS EXPECTED:
  Limited Thunderstorm Risk.

DISCUSSION:

Scattered thunderstorms are possible tonight, mainly south of
I-80. Severe weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday and Sunday...
  Elevated Flooding Risk.
  Limited Severe Thunderstorm Risk.
Monday...
  Limited Non Thunderstorm Wind Risk.

DISCUSSION:

A large storm system will migrate toward the area through the
weekend. Several periods of rain are expected, moderate to heavy
at times, especially later Saturday into Sunday. Significant
rainfall totals are possible which could result in flooding late
in the weekend and lead to significant rises on area rivers. The
threat of strong to severe thunderstorms remains, especially on
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving northeast at 50 MPH.

&&

$$



Hydrologic Outlook

Hydrologic Outlook
ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-
141-197-201-INC007-073-089-111-127-282200-

Hydrologic Outlook
National Weather Service Chicago IL
448 AM CDT Fri Apr 28 2017 /548 AM EDT Fri Apr 28 2017/

...Potential for Heavy Rain Late Saturday through Sunday
Evening...

A dynamic low pressure system will result in a northward surge of
Gulf moisture over the region on Saturday. High moisture levels,
and a prolonged period of rainfall will likely result in rises in
local rivers. Rainfall totals through Sunday night may exceed 4
inches across portions of the area.

While uncertainty remains with the placement of the heaviest
rainfall axis, the potential for high rainfall rates and amounts
will likely result in increased runoff into local rivers and
streams. This could push area streams and rivers into flood.
Residents living in flood prone areas should pay close attention
to the latest forecast information. Since the bulk of the
rainfall may be at night, motorists should be especially cautious
as flooding is harder to recognize at night.

$$




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NOAA National Weather Service
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Silver Spring, MD 20910
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