THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
437 IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 11 COUNTIES

IN NORTHWEST IOWA

BUENA VISTA           CHEROKEE              CLAY
DICKINSON             LYON                  O'BRIEN
OSCEOLA               PLYMOUTH              SIOUX

IN WEST CENTRAL IOWA

IDA                   WOODBURY

IN MINNESOTA THIS WATCH INCLUDES 8 COUNTIES

IN SOUTHWEST MINNESOTA

COTTONWOOD            JACKSON               LINCOLN
LYON                  MURRAY                NOBLES
PIPESTONE             ROCK

IN NEBRASKA THIS WATCH INCLUDES 2 COUNTIES

IN NORTHEAST NEBRASKA

DAKOTA                DIXON

IN SOUTH DAKOTA THIS WATCH INCLUDES 8 COUNTIES

IN EAST CENTRAL SOUTH DAKOTA

MOODY

IN SOUTHEAST SOUTH DAKOTA

BON HOMME             CLAY                  LINCOLN
MINNEHAHA             TURNER                UNION
YANKTON

THIS INCLUDES THE CITIES OF ALCESTER, ALLEN, ARNOLDS PARK, AVON,
BATTLE CREEK, BERESFORD, CANTON, CENTERVILLE, CHANCELLOR,
CHEROKEE, ELK POINT, FLANDREAU, FULDA, GEORGE, HARRISBURG,
HARTLEY, HAWARDEN, HENDRICKS, HOLSTEIN, HULL, HURLEY, IDA GROVE,
INWOOD, IRENE, IVANHOE, JACKSON, JEFFERSON, LAKE BENTON,
LAKEFIELD, LARCHWOOD, LE MARS, LENNOX, LUVERNE, MARION, MARSHALL,
MILFORD, MOUNTAIN LAKE, NORTH SIOUX CITY, ORANGE CITY, PARKER,
PIPESTONE, PONCA, ROCK RAPIDS, ROCK VALLEY, SANBORN, SCOTLAND,
SHELDON, SIBLEY, SIOUX CENTER, SIOUX CITY, SIOUX FALLS, SLAYTON,
SOUTH SIOUX CITY, SPENCER, SPIRIT LAKE, SPRINGFIELD, STORM LAKE,
TABOR, TEA, TYLER, TYNDALL, VERMILLION, VIBORG, WAKEFIELD,
WINDOM, WORTHINGTON, AND YANKTON. THIS ALSO INCLUDES THE TRIBAL
LANDS OF THE FLANDREAU SANTEE SIOUX TRIBAL NATION.

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
Southwestern Sioux County in northwestern Iowa...
Western Plymouth County in northwestern Iowa...
Dixon County in northeastern Nebraska...
Clay County in southeastern South Dakota...
Southeastern Yankton County in southeastern South Dakota...
Union County in southeastern South Dakota...

* Until 430 PM CDT.

* At 326 PM CDT, severe thunderstorms were located along a line
extending from near Irene to 7 miles south of Yankton, moving
southeast at 40 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near...
Wakonda around 330 PM CDT.
Beresford and Meckling around 345 PM CDT.

Other locations in the path of these severe thunderstorms include
Vermillion, Union Grove State Park, Alcester, Maskell, Hawarden,
Newcastle, Akron, Elk Point, Martinsburg, Ponca, Ireton and Ponca
State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&


THUNDERSTORM DAMAGE THREAT...CONSIDERABLE;
HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...<.75 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...70 MPH

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Heat index values up to 105.

* WHERE...Portions of southeast South Dakota, northeast Nebraska
and northwest and west central Iowa.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&