Hydrometeorological Discussion
Issued by NWS North Central River Forecast Center
Issued by NWS North Central River Forecast Center
441
AGUS73 KMSR 191516
HMDMSR
Hydrometeorological Forecast Discussion
NWS North Central River Forecast Center Twin Cities/Chanhassen MN
1015 AM CDT Wed Aug 19 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 2026-08-19 13:43 UTC
DES Des Moines R Basin 2026-08-19 13:46 UTC
GND Grand, Muskegon/White Basins, MI 2026-08-19 13:14 UTC
ILO Mainstem Illinois R 2026-08-19 14:33 UTC
KDF Illinois R tribs abv LaSalle, IL 2026-08-19 13:43 UTC
M10 Miss. R - Lake City, MN-L&D 10 2026-08-19 13:45 UTC
M19 Miss. R - L&D 11-Gregory Landing 2026-08-19 14:19 UTC
MIS Miss. R - L&D 20 to Chester, IL 2026-08-19 15:10 UTC
NLM Northern Lower Michigan rivers 2026-08-19 13:47 UTC
RCK Rock R Basin 2026-08-19 13:25 UTC
RDW Mississippi R abv Red Wing, MN 2026-08-19 13:15 UTC
SSL Illinois R tribs blo LaSalle, IL 2026-08-19 13:48 UTC
TIA Misc Iowa Tribs to Miss. R 2026-08-19 13:25 UTC
UPM Upper Michigan Peninsula rivers 2026-08-19 14:01 UTC
=====================================================================
Sites with forecasts above flood stage (FS):
MAX
RVF NWSLI Station name/river FS FCST
ILO SRDI2 Utica - Starved Rock L&D 6 -Illinois R 450.0 450.7
ILO HAVI2 Havana - Illinois R 14.0 16.9
ILO BEAI2 Beardstown - Illinois R 14.0 16.3
ILO VALI2 Valley City - Illinois R 14.0 14.0
SSL MNTI2 Monticello - Sangamon R 13.0 15.8
Sites with forecasts below flood stage but above a
user-defined threshold (FS=Flood Stage):
MAX
RVF NWSLI Station name/river FS FCST
ILO LSLI2 La Salle - 1S - Illinois R 20.0 19.9
ILO PIAI2 Peoria - Boat Yard - Illinois R 18.0 17.3
ILO PRAI2 Peoria - L&D 7 - Illinois R 447.0 444.9
ILO NLGI2 La Grange - L&D 8 - Illinois R 23.0 21.7
ILO MROI2 Meredosia - Pwr Plant - Illinois R 17.0 15.8
ILO HARI2 Hardin - Illinois R 25.0 24.0
KDF SLBI3 Shelby - Kankakee R 10.5 9.6
SSL SEVI2 Seville - (Marietta 3ESE) - Spoon R 22.0 19.8
SSL RVTI2 Riverton - 4NNE & Sangamon R 23.0 17.3
SSL RIPI2 Ripley - La Moine R 22.0 18.7
TIA DEWI4 De Witt - 4S - Wapsipinicon R 11.0 10.0
=====================================================================
...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
IADB16 DH1200/PPDRZ 0.73 : Peosta 3E IA
IADB23 DH1130/PPDRZ 0.72 : Dubuque 1SE IA
GTTI4 DH1100/PPDRZ 0.55 : Guttenberg L&D 10 IA
IACT09 DH1151/PPDRZ 0.53 : McGregor 6WNW IA
DLDI4 DH1100/PPDRZ 0.51 : Dubuque L&D 11 IA
Top daily precipitation reports greater than zero from Illinois:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
ILLK112 DH1300/PPDRZ 1.50 : Lindenhurst 1ENE IL
ILMCH108 DH1200/PPDRZ 1.31 : Spring Grove 1ESE IL
UGN DH1151/PPDRZ 1.31 : Waukegan Rgnl Arpt IL
ILLK42 DH1100/PPDRZ 1.17 : Gurnee 2W IL
ILLK23 DH1200/PPDRZ 1.16 : Winthrop Harbor IL
Top daily precipitation reports greater than zero from Indiana:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
INSJ17 DH1100/PPDRZ 1.06 : Walkerton 6ENE IN
INLP07 DH1200/PPDRZ 1.02 : La Porte 2SW IN
INEL61 DH1100/PPDRZ 0.64 : Nappanee 5NE IN
INEL81 DH1303/PPDRZ 0.63 : Syracuse 2NW IN
INLP73 DH1141/PPDRZ 0.48 : Mill Creek 2NNE IN
Top daily precipitation reports greater than zero from Michigan:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MKG DH1155/PPDRZ 3.35 : Muskegon Cnty Arpt MI
MIMG26 DH1100/PPDRZ 3.01 : Muskegon 2SSW MI
MIKN65 DH1100/PPDRZ 2.26 : Belmont 1WNW MI
MIKN77 DH1300/PPDRZ 1.97 : Comstock Park 1NNW MI
MIMG19 DH1100/PPDRZ 1.61 : North Muskegon 2NW MI
Top daily precipitation reports greater than zero from Minnesota:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MNOL65 DH1200/PPDRZ 1.57 : Oronoco 3ESE MN
WIDM5 DH1100/PPDRZ 1.13 : Winona L&D 5A MN
WIRM5 DH1200/PPDRG 1.07 : Eyota 2NE MN
OCOM5 DH1200/PPDRG 1.06 : Oronoco MN
MNWN23 DH1257/PPDRZ 0.93 : Winona 2ESE MN
Top daily precipitation reports greater than zero from Missouri:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
MOPH20 DH1200/PPDRZ 2.10 : St. James 1SE MO
MOCF08 DH1330/PPDRZ 1.90 : St. James 8SE MO
CUBM7 DH1300/PPDRZ 1.58 : Cuba MO
VBRM7 DH1200/PPDRZ 1.40 : Viburnum MO
CBFM7 DH1200/PPDRG 1.39 : Belgrade 6SW - Council Bluff RAWS MO
No measureable precipitation reported within the NCRFC area
of North Dakota during the last 24 hours.
Top daily precipitation reports greater than zero from South Dakota:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
SDGT09 DH1200/PPDRZ 0.30 : LaBolt SD
SDBH01 DH1200/PPDRZ 0.09 : Tyndall SD
MLBS2 DH1230/PPDRZ 0.001 : Milbank WWTP SD
Top daily precipitation reports greater than zero from Wisconsin:
LID OBTIME/SHEF VALUE NAME / DETAIL STATE
SLRW3 DH1200/PPDRZ 1.93 : Slinger 1WNW - WWTP WI
GATW3 DH1200/PPDRZ 1.80 : Grafton WWTP WI
HARW3 DH1200/PPDRZ 1.73 : Hartford 2W - WWTP WI
WIDD15 DH1345/PPDRZ 1.69 : Columbus 5ENE WI
CVZW3 DH1128/PPDRZ 1.64 : Crivitz - Wisc Pub Svc 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
$$