Hazardous Weather Outlook for Mark, Illinois
Hazardous Weather Outlook...CORRECTED
National Weather Service Quad Cities IA IL
330 AM CDT Fri May 3 2024
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-040830-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
330 AM CDT Fri May 3 2024
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...TODAY AND TONIGHT
Patchy dense fog is expected over eastern Iowa this morning
through 8 AM, especially in areas that saw significant rainfall
Thursday.
A flood warning continues for the English River near Kalona. Other
tributary rivers are also running high. Please refer to the
latest flood warnings and monitor forecast stages.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
The storm prediction center is forecasting a marginal (level 1 of
5) risk for much of the outlook area Saturday. A cold front will
move through the area during the late morning and afternoon, with
thunderstorms possible along the front. It`s uncertain how much
instability will be available for storms, but a few severe storms
are possible, with damaging winds the main threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
Flood Warning for Mark, Illinois
Flood Statement
National Weather Service Chicago IL
908 PM CDT Thu May 2 2024
...The Flood Warning is extended for the following rivers in
Illinois...
Illinois River at La Salle affecting La Salle, Putnam and Bureau
Counties.
For the Illinois River (Upper)...including Morris, Ottawa, La
Salle...Minor flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.
Additional information is available at www.weather.gov.
The next statement will be issued by Friday afternoon.
ILC011-099-155-032015-
/O.EXT.KLOT.FL.W.0033.000000T0000Z-240506T0600Z/
/LSLI2.1.ER.240429T0655Z.240501T0315Z.240506T0000Z.NO/
908 PM CDT Thu May 2 2024
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY MONDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River from Starved Rock Lock and Dam downstream
to confluence with Big Bureau Creek, including the La Salle gauge.
* WHEN...Until early Monday morning.
* IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State
Park is inundated east of La Salle. High water levels begin to
impact shipping interests along the river.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Thursday the stage was 21.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Thursday was 22.3 feet.
- Forecast...The river is expected to fall below flood stage
Sunday evening.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood
LAT...LON 4131 8940 4135 8933 4137 8898 4128 8899
4128 8929