NOAA’s National Weather Service

1. NOAA’s National Weather Service 2010 Spring Flood Outlook #2 March 5, 2010 By: Darrin Hansing ILX Service Hydrologist

2. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Winter Precipitation Spring Flood Outlook #2 – Issued March 5, 2010

3. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Soil Conditions Soil Depth 0” - 12” Soil Depth 0” - 72” Soil moisture 20 to 30% above normal Spring Flood Outlook #2 – Issued March 5, 2010

4. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L River Conditions • Illinois Streamflow Conditions • ● The colors represent current streamflow percentiles • compared to historical daily values. • ● Only gages with at least 30 years of records are used. • ● Overall above normal streamflows in central sections of • Illinois with normal to below normal • conditions across the remainder of • the state. • ● Currently no flooding occurring • across Illinois. Spring Flood Outlook #2 – Issued March 5, 2010

5. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Snow pack and SWE Snow Depth Snow Water Equivalent Spring Flood Outlook #2 – Issued March 5, 2010

6. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Snow pack and SWE Snow Depth Snow Water Equivalent Spring Flood Outlook #2 – Issued March 5, 2010

7. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Flood Outlook Summary Below normal probability for reaching flood stage Near normal probability for reaching flood stage 6% 20% above normal probability for reaching flood stage > 20% above normal probability for reaching flood stage

8. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Flood Outlook Comparisons Mar 5th Outlook Feb 19th Outlook Below normal Near normal 6% to 20% above normal > 20% above normal

9. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Flood Outlook Summary - What can we expect? Spring Flood Outlook #2 – Issued March 5, 2010

10. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Flood Outlook Summary - What can we expect? February 19th issuance March 5th issuance Spring Flood Outlook #2 – Issued March 5, 2010

11. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Outlooks 6 – 10 Day Outlooks Spring Flood Outlook #2 – Issued March 5, 2010

12. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Outlooks 30 Day Outlooks Spring Flood Outlook #2 – Issued March 5, 2010

13. N a t i o n a l W e a t h e r S e r v i c e L i n c o l n , I L Outlooks 30 – 90 Day Outlooks Spring Flood Outlook #2 – Issued March 5, 2010