THERE ARE NO LOCAL ACTIVE ADVISORIES, WATCHES, OR WARNINGS.
Hydrologic Outlook
HYDROLOGIC OUTLOOK
ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-
141-197-201-INC007-073-089-111-127-110545-
HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO IL
545 AM CST WED MAR 10 2010 /645 AM EST WED MAR 10 2010/
...RAIN AND SNOW MELT WILL BRING RISES AND POTENTIAL FLOODING TO
AREA RIVERS LATER THIS WEEK...
MILD TEMPERATURES HAVE MELTED OFF A MAJORITY OF THE SNOW PACK OVER THE
LAST FEW DAYS. WATER CONTENT OF THE SNOW PACK PRIOR TO THE MELT WAS
AS HIGH AS 1 TO 2 INCHES OVER PORTIONS THE UPPER ROCK...FOX...AND
DES PLAINES WATERSHEDS. SOIL MOISTURE REMAINS ABOVE NORMAL. FROST
WAS OUT OF THE SOIL IN AREAS ALONG AND SOUTH OF INTERSTATE 80. A
SHALLOW LAYER OF FROST REMAINED IN THE SOIL IN AREAS NORTH.
A SLOW MOVING STORM SYSTEM WILL BRING PERIODS OF RAIN TO THE AREA
THROUGH THE END OF THE WEEK. TOTAL RAINFALL AMOUNTS BY THE END OF
THE WEEK COULD BE AS HIGH AS 1 TO 1.5 INCHES WITH SOME OF THE
HEAVIEST RAIN TOTALS OVER THE ROCK...FOX...AND DES PLAINES RIVER
BASINS....ALTHOUGH MANY AREAS IN NORTHERN ILLINOIS COULD
EXPERIENCE TOTALS OF NEARLY ONE INCH.
THIS RAINFALL OCCURRING DURING THE MELT PERIOD COULD RESULT IN MINOR
TO MODERATE FLOODING IN SOME LOCATIONS...WITH THE SEVERITY OF ANY
FLOODING DEPENDING ON THE AMOUNT OF ADDITIONAL RAINFALL RECEIVED
THIS WEEK. RIVER CRESTS WOULD OCCUR THIS WEEKEND WITH SOME
LOCATIONS NOT CRESTING UNTIL EARLY NEXT WEEK. EVEN WITH LITTLE OR
NO RAINFALL...SOME LOCATIONS ON RIVERS IN THE NORTHERN THIRD OF
ILLINOIS COULD SEE RISES TO NEAR OR SLIGHTLY ABOVE FLOOD STAGE AS
A RESULT OF RUNOFF FROM SNOW MELT ALONE.
RESIDENTS IN LOW LYING FLOOD PRONE AREAS ALONG AREA RIVERS SHOULD
CONTINUE TO CLOSELY MONITOR LATER WEATHER AND RIVER FORECASTS AND
STATEMENTS FROM THE NATIONAL WEATHER SERVICE REGARDING THE FLOOD
POTENTIAL THIS WEEK.
$$
Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
423 PM CST WED MAR 10 2010
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
112230-
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-
423 PM CST WED MAR 10 2010 /523 PM EST WED MAR 10 2010/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
AREAS OF FOG WILL REDEVELOP ACROSS THE AREA TONIGHT...WITH SOME
LOCALLY DENSE FOG POSSIBLE ESPECIALLY ACROSS FAR NORTHEAST
ILLINOIS.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THERE IS A CHANCE OF THUNDERSTORMS THURSDAY INTO THURSDAY
EVENING. A FEW OF THESE STORMS WILL BE CAPABLE OF PRODUCING SOME
SMALL HAIL THURSDAY AFTERNOON...PARTICULARLY SOUTH OF INTERSTATE
80.
RAINFALL THIS WEEK...PARTICULARLY ON THURSDAY...COULD COMBINE
WITH ELEVATED RIVER LEVELS FROM RECENT SNOW MELT TO RESULT IN
SOME FLOODING DEVELOPING BY LATE IN THE WEEK INTO THE WEEKEND.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
NATIONAL ADVISORIES, WATCHES, & WARNINGS.
WEATHER FACTS
WHAT ARE THE GLOBAL WIND PATTERNS? The equator receives the Sun's direct rays. Here, air is heated and rises, leaving low pressure areas behind. Moving to about thirty degrees north and south of the equator, the warm air from the equator begins to cool and sink. Between thirty degrees latitude and the equator, most of the cooling sinking air moves back to the equator. The rest of the air flows toward the poles.