03-20-2006 Agenda - Laserfiche WebLink

Spring Flood and Water Resources Outlook HYDROLOGIC OUTLOOK.. . CORRECTION NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS 1220 PM CST TUE MAR 14 2006 . ..SPRING FLOOD AND WATER RESOURCES OUTLOOK... THIS SPRING FLOOD AND WATER RESOURCES OUTLOOK IS FOR THE RED RIVER OF THE NORTH AND ITS MINNESOTA AND NORTH DAKOTA TRIBUTARIES. THIS CORRECTION APPLIES TO SHEYENNE RIVER AT HARWOOD, NO FORECAST POINT... THE NORTH CENTRAL RIVER FORECAST CENTER RE-RAN THE RIVER FORECAST MODEL WITH AN UPDATED RATING CURVE FOR HARWOOD. THIS UPDATE REDUCES THE RIVER LEVELS AT THE LOWER PROBABILITIES OF EXCEEDENCES... FOR THE 10 PERCENT PROBABILITY OF EXCEEDENCE...THE THE RIVER LEVELS DROPPED FROM THE PREVIOUS 900.1 FEET VALUE TO A NEW VALUE OF 891.8 FEET FOR THE RIVER AT HARWOOD. THIS OUTLOOK IS ISSUED IN ADDITION TO FLOOD WARNINGS AND 7-DAY RIVER FORECASTS THAT ARE ISSUED WHEN RIVER FORECAST LOCATIONS ARE IN FLOOD OR FORECAST TO RISE ABOVE FLOOD STAGE. . ..MODERATE TO MAJOR SPRING SNOWMELT FLOODING IS LIKELY FOR THE RED RIVER OF THE NORTH... IN THE TABLE BELOW.. .THE STAGE VALUES IN THE 90 THROUGH 10 PERCENT COLUMNS CORRESPOND TO THE CHANCES THAT THE RIVER WILL RISE ABOVE THE GIVEN STAGES FOR THE LISTED LOCATIONS ANYTIME DURING THE VALID PERIOD. CHANCE OF EXCEEDING STAGES AT MAINSTEM RED RIVER LOCATIONS VALID 3/14/2006 - 6/12/2006 LOCATION FS/FT/ 90% 80% 70% 60% 50% 40% 30% 20% 10% 1.001 WAHPETON NO 10 12.4 13 .1 13.7 14 .1 14.9 15.3 15.9 17.6 FARGO ND 18 30.4 30.7 31. 5 32.4 33.4 34.0 35.1 35.7 HALSTAD NO 26 29.5 30.9 33.7 34.7 35.9 36.9 37.8 38.9 GRAND FORKS 28 41.7 42.5 43 .1 43.6 44.2 45.2 46.0 47.1 OSLO MN 26 34.6 34.9 35.1 35.2 35.5 35.8 36.1 36.6 DRAYTON NO 32 40.1 40.7 40.9 41.2 41. 6 42.1 42.6 42.9 PEMBINA NO 42 49.2 50.2 50.5 50.8 51. 2 51. 7 52.1 52.3 18.1 36.6 '3(,. "1 39.3 48.0 36.9 43.8 53.1 CHANCE OF EXCEEDING STAGES AT NORTH DAKOTA TRIBUTARY LOCATIONS VALID 3/14/2006 - 6/12/2006 LOCATION FS/FT / 90% 80% 70% 60% 50% 40% 30% 20% 10% -------- WILD RICE RIVER. . . ABERCROMBIE 10 18.7 19.1 19.7 20.2 20.7 21.4 21. 8 22.8 24.1 2~.2 SHEYENNE RIVER. . . VALLEY CITY 15 7.6 8.0 8.5 8.8 9.4 10.1 10.5 11.5 13.2 LISBON 11 7.6 8.1 8.6 9.1 10.0 10.4 11.3 11.7 13.9 KINDRED 16 11.7 12.6 13.0 14.1 14.7 16.0 17.0 18.5 20.4 [9/.3 HARWOOD 884 887.2 888.8 890.5 891.1 891. 5 891.5 891.6 891.7 891.8 WEST FARGO 18 23.8 24.1 24.2 24.2 24.3 24.3 24.6 24.7 25.0 MAPLE RIVER. . . ENDERLIN 9 9.6 9.9 10.1 10.4 10.5 11.1 11.6 12.5 13 .2 MAPLETON 905 905.6 906.5 906.8 907.0 907.3 907.6 908.5 909.3 910.0 "/09."(, GOOSE RIVER.. . HILLSBORO 10 8.7 9.4 10.9 11.4 12.3 12.6 12.9 14.1 14.8 FOREST RIVER... MINTO 6 5.6 6.1 6.4 6.6 6.8 7.1 7.4 7.9 9.0 PARK RIVER. . . GRAFTON 12 11.0 11.4 11.8 12.0 12.5 12.8 13 .1 13.9 15.1 PEMBINA RIVER... WALHALLA 11 8.9 9.4 10.1 10.9 11.3 12.0 12.8 13.4 14.2 NECHE 18 15.6 16.2 18.2 20.2 21.2 22.4 23.2 23.8 24.1