Hydrometeorological Discussion
Issued by NWS North Central River Forecast Center
Issued by NWS North Central River Forecast Center
825
AGUS73 KMSR 201617
HMDMSR
Hydrometeorological Forecast Discussion
NWS North Central River Forecast Center Twin Cities/Chanhassen MN
1117 AM CDT Thu Aug 20 2026
River forecasts routinely incorporate 24 hours of QPF from
April 1 to September 30 and 48 hours from October 1 to March 31.
See http://www.weather.gov/ncrfc/LMI_QPF_NcrfcCurrentQpf
...Forecast Activity...
RVF forecasts issued today. Issue times are in UTC.
Subtract 6 hrs for CST, 5 hrs for CDT/EST, 4 hrs for EDT.
RVF Forecast Group description Issue Time
CIW Cedar/Iowa R Basin 2026-08-20 13:53 UTC
DES Des Moines R Basin 2026-08-20 14:00 UTC
GND Grand, Muskegon/White Basins, MI 2026-08-20 14:21 UTC
ILO Mainstem Illinois R 2026-08-20 15:43 UTC
M10 Miss. R - Lake City, MN-L&D 10 2026-08-20 15:12 UTC
M19 Miss. R - L&D 11-Gregory Landing 2026-08-20 15:42 UTC
NLM Northern Lower Michigan rivers 2026-08-20 13:52 UTC
RCK Rock R Basin 2026-08-20 14:02 UTC
RDW Mississippi R abv Red Wing, MN 2026-08-20 13:22 UTC
SSL Illinois R tribs blo LaSalle, IL 2026-08-20 13:53 UTC
TIA Misc Iowa Tribs to Miss. R 2026-08-20 13:49 UTC
UPM Upper Michigan Peninsula rivers 2026-08-20 14:14 UTC
=====================================================================
Sites with forecasts above flood stage (FS):
MAX
RVF NWSLI Station name/river FS FCST
ILO HAVI2 Havana - Illinois R 14.0 16.9
ILO BEAI2 Beardstown - Illinois R 14.0 16.5
SSL MNTI2 Monticello - Sangamon R 13.0 15.5
Sites with forecasts below flood stage but above a
user-defined threshold (FS=Flood Stage):
MAX
RVF NWSLI Station name/river FS FCST
ILO SRDI2 Utica - Starved Rock L&D 6 -Illinois R 450.0 449.9
ILO LSLI2 La Salle - 1S - Illinois R 20.0 19.2
ILO PIAI2 Peoria - Boat Yard - Illinois R 18.0 17.2
ILO PRAI2 Peoria - L&D 7 - Illinois R 447.0 444.9
ILO NLGI2 La Grange - L&D 8 - Illinois R 23.0 21.5
ILO MROI2 Meredosia - Pwr Plant - Illinois R 17.0 15.5
ILO VALI2 Valley City - Illinois R 14.0 13.5
SSL RVTI2 Riverton - 4NNE & Sangamon R 23.0 17.5
SSL RIPI2 Ripley - La Moine R 22.0 19.0
=====================================================================
...Past Precipitation...
Observation times are in UTC.
Subtract 6 hrs for CST, 5 hrs for CDT/EST, 4 hrs for EDT.
=====================================================================
Top daily precipitation reports greater than zero from Iowa:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
IADM18 DH1200/PPDRZ 1.65 : Danville 3W IA
IALE11 DH1240/PPDRZ 1.21 : West Point 8NW IA
IADM07 DH1200/PPDRZ 1.05 : Burlington 6SSW IA
IALE20 DH1300/PPDRZ 1.02 : Fort Madison 4NNW IA
IACL09 DH1100/PPDRZ 0.90 : Osceola 2N IA
Top daily precipitation reports greater than zero from Illinois:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
ILPT08 DH1300/PPDRZ 4.46 : White Heath 4NNE IL
ILSK10 DH1200/PPDRZ 3.37 : Bradford IL
ILPT15 DH1100/PPDRZ 2.81 : Mahomet 4WSW IL
ILPT16 DH1200/PPDRZ 1.83 : Mansfield 3S IL
ILMCL56 DH1100/PPDRZ 1.39 : Bloomington 4ESE IL
Top daily precipitation reports greater than zero from Indiana:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
INNB04 DH1130/PPDRZ 1.13 : Albion 3ENE IN
INJS49 DH1200/PPDRZ 0.45 : De Motte 4SW IN
INSL04 DH1200/PPDRZ 0.44 : Hymera IN
INJS73 DH1200/PPDRZ 0.29 : Wheatfield 4WSW IN
INJS01 DH1200/PPDRZ 0.22 : Wheatfield 3S IN
Top daily precipitation reports greater than zero from Michigan:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MIMC03 DH1200/PPDRZ 0.48 : Cedarville 3ESE MI
CHLM4 DH1330/PPDRZ 0.13 : Chelsea WWTP MI
MIWS53 DH1200/PPDRZ 0.03 : Chelsea 4NNE MI
MILV32 DH1100/PPDRZ 0.03 : Howell 4WSW MI
DTVM4 DH1240/PPDRZ 0.03 : Detour Village WTP MI
Top daily precipitation reports greater than zero from Minnesota:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MWRM5 DH1200/PPDRG 1.14 : Mahnomen 1SE MN
MNWD02 DH1100/PPDRZ 0.87 : Menahga 1N MN
MNBK25 DH1200/PPDRZ 0.82 : Rochert 6N MN
PRRM5 DH1200/PPDRG 0.82 : Park Rapids 4SW - CR115 MN
MNBK10 DH1100/PPDRZ 0.76 : Detroit Lakes 6N MN
Top daily precipitation reports greater than zero from Missouri:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MOSC07 DH1100/PPDRZ 5.24 : Sikeston 2ENE MO
MOCG16 DH1239/PPDRZ 1.96 : Jackson 2N MO
MOWY01 DH1149/PPDRZ 1.91 : Patterson 4N MO
DXTM7 DH1200/PPDRZ 1.21 : Dexter MO
SFFM7 DH1200/PPDRZ 1.08 : Steffenville MO
Top daily precipitation reports greater than zero from North Dakota:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
NDTR03 DH1200/PPDRZ 0.81 : Grandin 7ENE ND
NDGF18 DH1200/PPDRZ 0.78 : Reynolds 8ENE ND
NDGF14 DH1200/PPDRZ 0.59 : Grand Forks 3SSE ND
NDTR05 DH1200/PPDRZ 0.53 : Mayville 4SSE ND
RDR DH1155/PPDRZ 0.38 : Grand Forks AFB ND
Top daily precipitation reports greater than zero from South Dakota:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
SDBH01 DH1200/PPDRZ 0.07 : Tyndall SD
SDRB04 DH1200/PPDRZ 0.01 : Sisseton 10ENE SD
SDRB09 DH1400/PPDRZ 0.001 : Wilmot 8NNE SD
Top daily precipitation reports greater than zero from Wisconsin:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
WIDG30 DH1300/PPDRZ 0.10 : Superior 2WNW WI
WIWW02 DH1115/PPDRZ 0.05 : Lake Geneva 1ENE WI
WIWW24 DH1158/PPDRZ 0.03 : Genoa City 3NW WI
PLLW3 DH1154/PPDRZ 0.02 : Pell Lake WI
BGTW3 DH1100/PPDRZ 0.02 : Burlington WI
=====================================================================
See http://www.weather.gov/ncrfc/LMI_QCPCPN for all reports.
For additional and more in-depth information concerning river
forecasts, precipitation and all hydrometeorological information
in the NCRFC area of responsibility, please refer to the NCRFC
web page at: http://www.weather.gov/ncrfc
$$