RSS FeedsHydrologic Summary for April 2006 for the
Area Served by the NWS Forecast Office at
Summary
April 2006 was a warm and very wet month.
Flooding
There was minor to major river flooding in April. The flooding affected the following river basins:
Big Sioux, Little Sioux, Vermillion, Rock, and Des Moines.
Please refer to the table at the bottom of this report for more detailed information on the river flooding.
General Hydrologic Information
Temperatures in April were above normal across the entire region. Average temperatures for the month were 5.5 to 6.6 degrees above the 30 year average.
Precipitation for the month was above normal for all of the region. Precipitation totals were 120% to 200% of normal.
Soil Moisture conditions at the end of April were near normal across the far southern and western portions of the region, and up to 3 inches above normal in the northeast. The National Drought Monitor indicated no drought conditions for any of the region.
Mike Gillispie
May 10, 2006
FLOOD STAGE REPORT Report for: April 2006
RIVER AND STATION FLOOD ABOVE FLOOD STAGE CREST
STAGE FROM TO STAGE DATE
BIGSIOUX RIVER
BRKS2 9.0 4/02 4/06 9.4 4/04
SFLS2 12.0 4/01 4/09 13.0 4/07
WAVS2 10.0 4/07 4/08 12.8 4/07
SXFS2 16.0 4/07 4/08 19.2 4/07
HAWI4 15.0 4/01 4/13 23.4 4/10
AKRI4 16.0 4/01 4/18 23.0 4/10
ROCK RIVER
HRDM5 14.0 4/01 4/01 14.5 4/01
4/07 4/08 15.1 4/07
RAPI4 13.0 4/01 4/03 13.9 4/02
4/07 4/09 17.9 4/08
RKVI4 16.0 4/08 4/09 16.6 4/09
LITTLE SIOUX RIVER
MIFI4 12.0 3/31 4/17 15.9 4/09
SPWI4 10.0 3/31 4/23 13.8 4/09
LNNI4 18.0 4/01 4/23 19.8 4/12
CHKI4 17.0 4/04 4/11 18.3 4/07
OCHEYEDAN RIVER
SPOI4 8.0 3/31 4/04 9.1 4/03
4/08 4/10 9.4 4/09
SPLIT ROCK CREEK
COSS2 8.5 4/01 4/01 8.7 4/01
4/07 4/08 12.8 4/07
SKUNK CREEK
HTFS2 10.0 4/07 4/08 11.4 4/07
WCCS2 9.0 4/07 4/08 11.5 4/07
SIFS2 11.5 4/07 4/08 13.0 4/07
DES MOINES RIVER
WDOM5 19.0 4/03 4/20 20.7 4/08
JCKM5 12.0 4/07 4/17 13.8 4/09
VERMILLION RIVER
LVSS2 6.0 4/07 4/10 6.6 4/08
