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FLASH FLOOD WARNING FOR CASS COUNTY UNTIL 3:45-A.M.

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Des Moines IA
949 PM CDT Tue Sep 24 2019

The National Weather Service in Des Moines has issued a

* Flash Flood Warning for…
Western Cass County in southwestern Iowa…

* Until 345 AM CDT.

* At 948 PM CDT, local law enforcement reported heavy rain across
the warned area. Flash flooding is already occurring. Water was
reported over the road at 7th and Walnut, and 6th and Sunnyside in
Atlantic. Some vehicles were stalled with the roads impassable.

* Some locations that will experience flooding include…
Atlantic, Griswold, Lewis, Marne, Griswold Park, Cold Springs State
Park and Atlantic Municipal Airport.

Additional rainfall amounts of up to an inch are possible in the
warned area.

This includes Interstate 80 between mile markers 50 and 62.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Flood Advisory for northeastern Pott. County until 3:15-a.m. Wednesday

Weather

September 24th, 2019 by Ric Hanson

Flood Advisory
National Weather Service Omaha/Valley Nebraska
907 PM CDT Tue Sep 24 2019

IAC155-250815-
/O.NEW.KOAX.FA.Y.0020.190925T0207Z-190925T0815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pottawattamie IA-
907 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Flood Advisory for…
Northeastern Pottawattamie County in southwestern Iowa…

* Until 315 AM CDT Wednesday.

* At 907 PM CDT, Doppler radar indicated heavy rain that will cause
minor flooding in the advisory area.

* Some locations that will experience flooding include…
Avoca, Walnut, Shelby, Minden, Hancock and Botna Bend Park.

This includes Interstate 80 in Iowa between mile markers 29 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Flood Advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.

Severe Weather Statement for NE Pott. County

Weather

September 24th, 2019 by Ric Hanson

Pottawattamie IA-
909 PM CDT Tue Sep 24 2019

…THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POTTAWATTAMIE
COUNTY WILL EXPIRE AT 915 PM CDT…

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
and heavy rain are still possible with this thunderstorm.

A Tornado Watch remains in effect until midnight CDT for southwestern
Iowa.

Severe Tstorm Warning until 9:30-p.m. for NW Cass & S. Central Audubon Counties

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
847 PM CDT Tue Sep 24 2019

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Northwestern Cass County in southwestern Iowa…
South central Audubon County in west central Iowa…

* Until 930 PM CDT.

* At 847 PM CDT, a severe thunderstorm was located near Walnut, or 7
miles west of Atlantic, moving east at 20 mph.

HAZARD…Quarter size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Atlantic, Brayton, Marne, Wiota and Atlantic Municipal Airport.

This includes Interstate 80 between mile markers 50 and 65.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Tornado Watch remains in effect until midnight CDT for southwestern
and west central Iowa.

For your protection move to an interior room on the lowest floor of a
building.

Severe Tstorm Warning until 9:15-p.m. for NE Pott. County

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
846 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for…
Northeastern Pottawattamie County in southwestern Iowa…

* Until 915 PM CDT.

* At 845 PM CDT, a severe thunderstorm was located near Walnut, or 9
miles west of Atlantic, moving east at 30 mph.

HAZARD…60 mph wind gusts and quarter size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Walnut.

This includes Interstate 80 in Iowa between mile markers 46 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Tornado Watch remains in effect until midnight CDT for southwestern
Iowa.

For your protection move to an interior room on the lowest floor of a
building.

Severe Weather Statement for NE Pott & SE Shelby Counties

Weather

September 24th, 2019 by Ric Hanson

Pottawattamie IA-Shelby IA-
816 PM CDT Tue Sep 24 2019

…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHEASTERN POTTAWATTAMIE AND SOUTHEASTERN SHELBY COUNTIES…

At 816 PM CDT, a severe thunderstorm was located over Walnut, or 9
miles northwest of Atlantic, moving east at 25 mph. Another severe
thunderstorm was located over Avoca, also moving east at 25 mph.

HAZARD…Quarter size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

Locations impacted include…
Avoca, Walnut, Hancock and Botna Bend Park.

This includes Interstate 80 in Iowa between mile markers 40 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Tornado Watch remains in effect until midnight CDT for southwestern
Iowa.

For your protection move to an interior room on the lowest floor of a
building.

SEVERE TSTORM WARNING until 8:45-p.m.: N. Central Pott. & SW Shelby Counties

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
808 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for…
North central Pottawattamie County in southwestern Iowa…
Southwestern Shelby County in southwestern Iowa…

* Until 845 PM CDT.

* At 807 PM CDT, a severe thunderstorm was located over Shelby, or 24
miles west of Atlantic, moving east at 20 mph.

HAZARD…Half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Shelby.

This includes Interstate 80 in Iowa between mile markers 34 and 37.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Tornado Watch remains in effect until midnight CDT for southwestern
Iowa.

For your protection move to an interior room on the lowest floor of a
building.

SEVERE TSTORM WARNING until 8:30-p.m.: NE Pott., SE Shelby Counties

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
759 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for…
Northeastern Pottawattamie County in southwestern Iowa…
Southeastern Shelby County in southwestern Iowa…

* Until 830 PM CDT.

* At 757 PM CDT, a severe thunderstorm was located over Avoca, or 15
miles northwest of Atlantic, moving east at 25 mph.

HAZARD…Half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Avoca, Walnut, Hancock and Botna Bend Park.

This includes Interstate 80 in Iowa between mile markers 40 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A tornado warning remains in effect until 815 PM CDT for portions of
northeast Pottawattamie County. A Tornado Watch also remains in
effect until midnight CDT for southwestern Iowa.

For your protection move to an interior room on the lowest floor of a
building.

TORNADO WARNING for NE Pottawattamie County until 8:15-p.m.

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
737 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Tornado Warning for…
Northeastern Pottawattamie County in southwestern Iowa…

* Until 815 PM CDT.

* At 737 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Shelby, or 22 miles west of Atlantic, moving east
at 35 mph.

HAZARD…Tornado and golf ball size hail.

SOURCE…Radar indicated rotation.

IMPACT…Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.

* This dangerous storm will be near…
Avoca around 750 PM CDT.
Walnut around 800 PM CDT.

Other locations impacted by this tornadic thunderstorm include Botna
Bend Park and Hancock.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Severe tstorm warning NE Pott. Southern Shelby Counties until 8-p.m.

Weather

September 24th, 2019 by Ric Hanson

BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
735 PM CDT Tue Sep 24 2019

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for…
Northeastern Pottawattamie County in southwestern Iowa…
Southern Shelby County in southwestern Iowa…

* Until 800 PM CDT.

* At 735 PM CDT, a severe thunderstorm was located over Shelby, or 22
miles west of Atlantic, moving east at 35 mph.

HAZARD…Quarter size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Avoca, Walnut, Shelby, Hancock, Botna Bend Park, Nishna Bend
Recreation Area and Prairie Rose State Park.

This includes Interstate 80 in Iowa between mile markers 34 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Tornado Watch remains in effect until midnight CDT for southwestern
Iowa.

For your protection move to an interior room on the lowest floor of a
building.