Dallas Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Tornado Watch
Issued: 3:05 PM CDT Jun. 20, 2018 – National Weather Service


The National Weather Service has issued Tornado Watch 195 in
effect until 7 PM CDT this evening for the following areas

In Iowa this watch includes 21 counties

In central Iowa

Boone Dallas Grundy
Hamilton Hardin Jasper
Marshall Polk Poweshiek
story Tama Webster

In north central Iowa

Butler Franklin Humboldt
Wright

In northeast Iowa

Black Hawk Bremer

In south central Iowa

Mahaska

In southeast Iowa

Wapello

In west central Iowa

Greene

This includes the cities of Ackley, Adel, Allison, Ames,
Aplington, Belmond, Boone, Cedar Falls, Clarion, Clarksville,
Conrad, Des Moines, dike, Dumont, Dysart, Eagle Grove, Eldora,
Fort Dodge, Gladbrook, Greene, Grinnell, Grundy Center, Hampton,
Humboldt, Iowa Falls, Jefferson, Marshalltown, Newton, Oskaloosa,
Ottumwa, Parkersburg, Perry, Reinbeck, Shell Rock, Tama, Toledo,
traer, Waterloo, Waukee, Waverly, Webster City, and Wellsburg.

* Primary threats include...

a couple tornadoes possible.
Isolated damaging wind gusts to 70 mph possible.
Isolated large hail events to 1.5 inches in diameter possible.

Probability table:
prob of 2 or more tornadoes : 40%
prob of 1 or more strong /F2-F5/ tornadoes : 20%
prob of 10 or more severe wind events : 30%
prob of 1 or more wind events >= 75 mph : 20%
prob of 10 or more severe hail events : 30%
prob of 1 or more hail events >= 2 inches : 20%
prob of 6 or more combined severe hail/wind events : 60%
mean storm motion /mph/ : N 35


Kotenberg


Flood Warning
Issued: 10:36 AM CDT Jun. 20, 2018 – National Weather Service

... Forecast flooding increased from minor to moderate severity...

The Flood Warning continues for
the north Raccoon river near Perry, or from the Greene-Dallas
County line... to Adel.
* Until further notice.
* At 10:15 am Wednesday the stage was 14.8 feet, or 0.2 feet below
flood stage.
* Flood stage is 15.0 feet.
* No flooding is occurring and moderate flooding is forecast.
* Forecast... rise to flood stage midday today. Continue rising to
19.6 feet, or 4.6 feet above flood stage, Saturday morning.
* Impact... at 19.0 feet, approaches to the US 169 bridge over the
River North of Adel are impassable.


Lat... Lon 4159 9403 4186 9423 4186 9410 4161 9394
      4159 9403



Flash Flood Watch
Issued: 3:13 PM CDT Jun. 20, 2018 – National Weather Service

... Flash Flood Watch remains in effect until 7 PM CDT this
evening...

The Flash Flood Watch continues for

* portions of central Iowa and west central Iowa, including the
following areas, in central Iowa, Boone, Dallas, Polk, and
story. In west central Iowa, Greene.

* Until 7 PM CDT this evening

* a widespread total swath of 1.5 to 3 inches of rainfall is
anticipated through this evening. This heavy rain will fall on
top of an already saturated ground from recent rains earlier
this week.

* Intense rainfall rates are likely with these storms where 2 to
4 inches per hour rates will be common. Be prepared for water
over roads due to rapid rises on creeks and streams or even
water flowing from farm fields. If a Road is closed or if
water is running over it, please find an alternate Route. Turn
around don't drown.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.





1043 am CDT Wed Jun 20 2018

... Flood Watch in effect until Monday afternoon...

The National Weather Service in Des Moines has issued a
* Flood Watch for
the Raccoon river at Van Meter, or from the north and south Raccoon
rivers... to Walnut Woods State Park.
* Until Monday afternoon.
* At 10:00 am Wednesday the stage was 13.2 feet, or 3.8 feet below
flood stage.
* Flood stage is 17.0 feet.
* No flooding is occurring and minor flooding is forecast.
* Forecast... rise to flood stage midday Thursday. Continue rising to
18.5 feet, or 1.5 feet above flood stage, Saturday afternoon. Then
begin falling and go below flood stage Monday afternoon.
* There is limited confidence in this river forecast. Forecasts may
change so monitor for updated information.



Lat... Lon 4153 9397 4155 9396 4155 9375 4153 9374
      4151 9388 4153 9397




Special Statement
Issued: 2:43 PM CDT Jun. 20, 2018 – National Weather Service

... Periods of torrential rainfall and local water issues...

A series of thunderstorms has moved through and will continue to
move through the Interstate 35 corridor between Des Moines and Ames,
producing periods of torrential rainfall. With rainfall rates in
excess of 1 to 2 inches per hour, and multiple rounds of storms,
local water runoff may result in areas of significant ponding and
running water in uncommon areas.

Winds in excess of 30 mph will also be possible with these storms.

Rainfall amounts up to two inches will be possible with these storms.

Locations impacted include...
Des Moines, Ames, West Des Moines, Ankeny, Urbandale, Johnston,
Clive, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Nevada,
Windsor Heights, Carlisle, Bondurant, Story City, Polk City, Huxley
and Saylorville.

Precautionary/preparedness actions...

Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.


Lat... Lon 4146 9342 4146 9397 4219 9374 4220 9340
time... Mot... loc 1941z 200deg 36kt 4151 9375


Curtis

243 PM CDT Wed Jun 20 2018

... Periods of torrential rainfall and local water issues...

A series of thunderstorms has moved through and will continue to
move through the Interstate 35 corridor between Des Moines and Ames,
producing periods of torrential rainfall. With rainfall rates in
excess of 1 to 2 inches per hour, and multiple rounds of storms,
local water runoff may result in areas of significant ponding and
running water in uncommon areas.

Winds in excess of 30 mph will also be possible with these storms.

Rainfall amounts up to two inches will be possible with these storms.

Locations impacted include...
Des Moines, Ames, West Des Moines, Ankeny, Urbandale, Johnston,
Clive, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Nevada,
Windsor Heights, Carlisle, Bondurant, Story City, Polk City, Huxley
and Saylorville.

Precautionary/preparedness actions...

Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.


Lat... Lon 4146 9342 4146 9397 4219 9374 4220 9340
time... Mot... loc 1941z 200deg 36kt 4151 9375


Curtis


Flash Flood Watch
Issued: 3:13 PM CDT Jun. 20, 2018 – National Weather Service

... Flash Flood Watch remains in effect until 7 PM CDT this
evening...

The Flash Flood Watch continues for

* portions of central Iowa and west central Iowa, including the
following areas, in central Iowa, Boone, Dallas, Polk, and
story. In west central Iowa, Greene.

* Until 7 PM CDT this evening

* a widespread total swath of 1.5 to 3 inches of rainfall is
anticipated through this evening. This heavy rain will fall on
top of an already saturated ground from recent rains earlier
this week.

* Intense rainfall rates are likely with these storms where 2 to
4 inches per hour rates will be common. Be prepared for water
over roads due to rapid rises on creeks and streams or even
water flowing from farm fields. If a Road is closed or if
water is running over it, please find an alternate Route. Turn
around don't drown.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.





1043 am CDT Wed Jun 20 2018

... Flood Watch in effect until Monday afternoon...

The National Weather Service in Des Moines has issued a
* Flood Watch for
the Raccoon river at Van Meter, or from the north and south Raccoon
rivers... to Walnut Woods State Park.
* Until Monday afternoon.
* At 10:00 am Wednesday the stage was 13.2 feet, or 3.8 feet below
flood stage.
* Flood stage is 17.0 feet.
* No flooding is occurring and minor flooding is forecast.
* Forecast... rise to flood stage midday Thursday. Continue rising to
18.5 feet, or 1.5 feet above flood stage, Saturday afternoon. Then
begin falling and go below flood stage Monday afternoon.
* There is limited confidence in this river forecast. Forecasts may
change so monitor for updated information.



Lat... Lon 4153 9397 4155 9396 4155 9375 4153 9374
      4151 9388 4153 9397