Sullivan Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning
Issued: 11:58 AM EDT Jun. 22, 2018 – National Weather Service

The Flood Warning continues for
the Wabash River at Riverton.
* From late Saturday night to Thursday afternoon.
* At Fri 11:00 am the stage was 8.5 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast... rise above flood stage by late Saturday night and
continue to rise to near 16.4 feet by Wednesday morning. The river
will fall below flood stage by late Wednesday night.
* At 16.0 feet... some agricultural lands underwater. A few rural
roads in Crawford County, Illinois close as water backs up minnow
Slough. High water affects campground at Leaverton Park in
Palestine. A few private roads near the Gill Township Levee in
Sullivan County may flood. Water level is at the top of most
makeshift levees.


Lat... Lon 3913 8761 3899 8748 3886 8750 3885 8756
      3898 8759 3913 8767




1058 am CDT Fri Jun 22 2018

The Flood Warning continues for
the Wabash River at Hutsonville legacy Power Plant site.
* From Saturday afternoon to Thursday morning.
* There have been no observations in the last 24 hours.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* Forecast... the river is forecast to rise above flood stage Saturday
afternoon and will crest at 17.6 feet late Tuesday night and then
will fall below flood stage by Wednesday evening.
* At 18.0 feet... seep water occurs behind levees on Indiana side.
Hutson creek begins to overflow from backwater. Old Darwin Road
and a few rural roads in eastern Clark and Crawford counties in
Illinois are impassable. Low agricultural land floods.


Lat... Lon 3930 8757 3923 8754 3912 8762 3914 8768
      3922 8762 3932 8763




1158 am EDT Fri Jun 22 2018

The Flood Warning continues for
the Wabash River at Terre Haute.
* From Saturday evening to Wednesday morning.
* At Fri 11:30 am the stage was 11.2 feet. This is 2.0 to 2.5 feet
higher than the observations from the old legacy gauge.
* Flood stage is 16.5 feet. This is 2.5 feet higher than flood stage
from the old legacy gauge.
* Minor flooding is forecast.
* Forecast... rise above flood stage by Saturday evening and continue
to rise to near 17.9 feet by Monday morning. The river will fall
below flood stage by Tuesday evening.
* At 17.5 feet... a few sloughs and a drainage have water in them in
the vicinity of sr 63 on the west side of the Wabash River.


Lat... Lon 3960 8736 3943 8740 3930 8757 3932 8763
      3945 8747 3960 8741




Special Statement
Issued: 4:56 PM EDT Jun. 22, 2018 – National Weather Service

... Cold air funnels possible today...

generally funnel clouds and tornadoes develop and occur in
conjunction with conditions that produce severe thunderstorms.

There are weak showers and thunderstorms in the area, but little
potential for actual tornadoes with only weak wind shear.

Research studies of funnel cloud occurrences indicate that a
different type of funnel cloud forms when weather conditions are
similar to those of today. These are called cold air funnels and
are not as violent as those associated with severe thunderstorms.

Cold air funnels are associated with thunderstorms or showers
that form in deep... cold core... large-scale low pressure systems
such as the one overhead today. These funnel clouds are smooth
and narrow. The parent storm or shower is not particularly tall or
intense. These funnel clouds normally protrude a few hundred feet
downward from the parent clouds... rotate or spin like a top... and
last only a few minutes before dissipating.

In rare cases when their circulations does reach the ground...
cold air funnels cause only minor damage. More reports of small
funnel clouds are possible over central Indiana today. Warnings
may be issued if any of them touch the ground for an extended
period of time.


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456 PM EDT Fri Jun 22 2018

... Cold air funnels possible today...

generally funnel clouds and tornadoes develop and occur in
conjunction with conditions that produce severe thunderstorms.

There are weak showers and thunderstorms in the area, but little
potential for actual tornadoes with only weak wind shear.

Research studies of funnel cloud occurrences indicate that a
different type of funnel cloud forms when weather conditions are
similar to those of today. These are called cold air funnels and
are not as violent as those associated with severe thunderstorms.

Cold air funnels are associated with thunderstorms or showers
that form in deep... cold core... large-scale low pressure systems
such as the one overhead today. These funnel clouds are smooth
and narrow. The parent storm or shower is not particularly tall or
intense. These funnel clouds normally protrude a few hundred feet
downward from the parent clouds... rotate or spin like a top... and
last only a few minutes before dissipating.

In rare cases when their circulations does reach the ground...
cold air funnels cause only minor damage. More reports of small
funnel clouds are possible over central Indiana today. Warnings
may be issued if any of them touch the ground for an extended
period of time.


18