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A Workshop Summary Communicating Uncertainties in Weather and Climate Information
April 5–6. Severe blizzard conditions occur throughout the Red River of the North Basin. One to three inches of precipitation falls. Cold, windy, and snowy conditions hampered data collection and flood-fight activities.
April 12. Current stage is 42.3 feet. Outlook crest is for 49.0 feet beginning fourth week of April.
April 13. Current stage is 42.8 feet. Outlook crest is 49.0 feet. This crest will be very broad, occurring as early as April 19 and extending as late as April 21–22.
April 14. Current stage is 43.7 feet. Crest upped to 50.0 feet for April 19–22.
April 16. Current stage is 47.5 feet. Rise to 49.0 to 49.5 feet by April 17, then slow rise to 50.0 feet April 22–23. USACE field construction personnel alerted to raise emergency flood protection by raising top of the levee to a stage of 54.0 feet.
April 17. Current stage is 50.9 feet. Crest 51.5 to 52.0 feet April 18; April 19. Ice effects in the area appear to be causing fluctuations in the rate of rise.
April 18, 9:00A.M. Current stage is 52.0 feet. Crest 53.0 feet April 18–19. Numerous levee failures occurred on both sides of the river. USACE reported that all levee breeches and over-toppings appear to have occurred between river stages of 51.6 and 53.0 feet.
April 18, 7:00P.M. Stage is 52.6 feet. Crest forecasted to be near 54.0 feet late on April 19.
April 19,NOON. Stage is 53.1 feet. Rise to near 54.0 feet over the next few days.
April 21. Estimated stage is 54.0 feet. Near crest; remain near this level for several days.
EAST COAST WINTER STORM, MARCH 2001
February 26, Monday. NCEP models began to show a significant storm for March 4. Local and national media and public and private forecasters began to discuss the potential for a significant storm on March 3–4.
February 28, Wednesday. A Philadelphia weathercaster predicted a possible 16 to 20 inches of snow beginning March 5.