Flood Potential Outlook
Issued by NWS Northern Indiana

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8

000
FGUS73 KIWX 182029
ESFIWX
INC001-003-009-017-033-039-049-053-069-075-085-087-091-099-103-
113-131-141-149-151-169-179-181-183-MIC021-023-027-059-149-OHC003-
039-051-069-125-137-161-171-192030-
ADAMS-ALLEN IN-BLACKFORD-CASS IN-DE KALB-ELKHART-FULTON IN-GRANT-
HUNTINGTON-JAY-KOSCIUSKO-LAGRANGE-LA PORTE-MARSHALL-MIAMI-NOBLE-
PULASKI-ST. JOSEPH IN-STARKE-STEUBEN-WABASH-WELLS-WHITE-WHITLEY-
BERRIEN-BRANCH-CASS MI-HILLSDALE-ST. JOSEPH MI-ALLEN OH-DEFIANCE-
FULTON OH-HENRY-PAULDING-PUTNAM-VAN WERT-WILLIAMS-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
329 PM EST TUE FEB 18 2014 /229 PM CST TUE FEB 18 2014/

...INCREASED FLOOD POTENTIAL BY THURSDAY...

SEVERAL FACTORS WILL COMBINE TO CREATE AN INCREASED FLOOD RISK
STARTING LATER THIS WEEK. WIDESPREAD SNOW AND ICE CONTAIN A LARGE
QUANTITY OF STORED WATER...GENERALLY 1.5 TO 4.0 INCHES ACROSS THE
REGION WITH THE GREATEST WATER CONTENT ACROSS PORTIONS OF NORTHERN
INDIANA AND SOUTHERN LOWER MICHIGAN.

SOME MELTING HAS ALREADY OCCURRED TODAY WITH ADDITIONAL SNOW MELT
WEDNESDAY WITH AFTERNOON HIGHS RISING ABOVE THE FREEZING MARK.
NIGHTTIME TEMPERATURES ARE EXPECTED TO DROP BELOW FREEZING DURING
THIS PERIOD HOWEVER...WHICH SHOULD LIMIT THE AMOUNT OF SNOWMELT
AND RUNOFF THROUGH WEDNESDAY.

MUCH WARMER CONDITIONS ARE ANTICIPATED BY THURSDAY WHICH WILL ACT
TO INCREASE THE RATE OF SNOWMELT. SOME MODERATE TO HEAVY RAINFALL
IS ALSO POSSIBLE THURSDAY AS A STRONGER UPPER LEVEL DISTURBANCE
APPROACHES THE REGION. THIS POTENTIAL RAINFALL COMBINED WITH
INCREASED RUNOFF FROM MELTING SNOW ATOP THE FROZEN GROUND MAY LEAD
TO A HEIGHTENED POTENTIAL FOR FLOODING IN LOW LYING
AREAS...BASEMENTS AND SMALL STREAMS AND CREEKS. SIGNIFICANT RISES
ALONG MAJOR STEM RIVERS COULD FOLLOW.

THESE WARMER CONDITIONS AND RUNOFF LATER IN THE WEEK WILL LEAD TO
SOME POTENTIAL FOR BREAK UP AND DOWNSTREAM MOVEMENT OF THICK ICE
ON RIVERS THAT WOULD INCREASE THE RISK FOR ICE JAMS TO DEVELOP AND
INCREASE THE FLOODING POTENTIAL.

THE THREAT FOR FLOODING APPEARS TO BE INCREASING IN MANY
AREAS...BUT IS NOT CERTAIN AT THIS POINT. THE SEVERITY AND TIMING
OF FLOODING WILL DEPEND ON THE AMOUNT OF RAINFALL RECEIVED
THURSDAY...AND THE EXACT DURATION OF WARMER CONDITIONS...WHICH
REMAINS UNCERTAIN. IF YOU LIVE IN A FLOOD PRONE AREA...NOW IS THE
TIME TO PREPARE FOR POSSIBLE FLOODING. STAY ALERT TO THE LATEST
FORECASTS TRENDS OVER THE NEXT SEVERAL DAYS BY VISITING
WEATHER.GOV/IWX.

ADDITIONAL FLOOD AWARENESS INFORMATION IS AVAILABLE AT
WEATHER.GOV/FLOODSAFETY AND READY.GOV/FLOODS

$$








USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.