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Weather Alert Detail

  • Flood Watch for Cattaraugus County, New York
  • Flood Watch issued March 17 at 4:25AM EDT by NWS
  • Effective: Tuesday, March 17, 2015 at 4:25 a.m.
  • Expires: Tuesday, March 17, 2015 at 9 p.m.
  • ...ADDITIONAL ICE JAM FLOODING POSSIBLE THIS MORNING...
    TEMPERATURES ROSE WELL INTO THE 40S IN FAR WESTERN NEW YORK
    MONDAY...AND SOME CREEKS HAVE RESPONDED DUE TO TO RUNOFF FROM THE
    ENSUING SNOWMELT. CREEKS AND RIVERS SHOULD CONTINUE TO RISE
    MODESTLY THIS MORNING...WITH THIS RISE POTENTIALLY BREAKING UP
    ICE OR CAUSE EXISTING ICE JAMS TO RE-POSITION. HIGHER FLOWS WILL
    ALSO CAUSE PONDING BEHIND EXISTING ICE JAMS TO RISE. THESE FACTORS
    COULD STILL RESULT IN ADDITIONAL ICE JAM FLOODING.
    IT IS DIFFICULT TO DETERMINE EXACTLY WHEN AND WHERE AN ICE JAM
    WILL FORM. ICE JAMS MOST COMMONLY FORM WHERE THERE ARE CONSTRICTIONS
    IN THE RIVER OR CREEK CHANNEL...SUCH AS SHARP CURVES...BRIDGES...OR
    OTHER OBSTRUCTIONS. ICE JAMS ALSO TEND TO OCCUR IN THE SAME LOCATIONS
    YEAR AFTER YEAR. PEOPLE LIVING IN AREAS THAT ARE PRONE TO ICE JAM
    FLOODING SHOULD REMAIN ALERT AND BE PREPARED IF FLOODING DOES
    OCCUR.
    ...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING...
    THE FLOOD WATCH CONTINUES FOR
    * A PORTION OF WESTERN NEW YORK...INCLUDING THE FOLLOWING
    COUNTIES...CATTARAUGUS...CHAUTAUQUA...NORTHERN ERIE...SOUTHERN
    ERIE AND WYOMING.
    * UNTIL 11 AM EDT THIS MORNING.
    * THERE CONTINUES TO BE A RISK FOR ICE JAM FLOODING IN THE WATCH
    AREA. ICE JAMS HAVE LARGELY REMAINED IN PLACE OVER THE LAST 24
    HOURS. HOWEVER...RUNOFF FROM THE WARMER TEMPERATURES WILL CAUSE
    CREEKS AND RIVERS TO RISE MODESTLY THIS MORNING. INCREASED FLOWS
    CAN CAUSE ICE TO BREAK UP...WHICH MAY RESULT IN ADDITIONAL ICE
    JAMS AND ICE JAM FLOODING. THERE ARE ALREADY ICE JAMS IN PLACE
    ON SEVERAL CREEKS...AND A GREATER VOLUME OF WATER MAY CAUSE
    WATER TO RISE BEHIND EXISTING ICE JAMS. THOSE LOCATED IN AREAS
    TYPICALLY SUSCEPTIBLE TO ICE JAMS SHOULD BE PREPARED TO TAKE
    ACTION IF FLOODING DOES DEVELOP. FALLING TEMPERATURES WILL
    DIMINISH RUNOFF AND DIMINISH THE THREAT FOR ADDITIONAL FLOODING
    LATER THIS MORNING AND THIS AFTERNOON.