Severe Thunderstorm Watch
Expires 2:00 AM CDT on July 06, 2015
Statement as of 9:43 PM CDT on July 05, 2015
Severe Thunderstorm Watch 393 remains in effect until 200 am CDT
. South Dakota counties included are
Bon Homme Brookings Clark
Clay Codington Deuel
Grant Hamlin hand
Hanson Hutchinson Kingsbury
Lake Lincoln McCook
Miner Minnehaha Moody
Roberts Spink Turner
Flash Flood Watch
Expires 10:00 AM CDT on July 06, 2015
Statement as of 9:02 PM CDT on July 5, 2015
... Flash Flood Watch in effect through Monday morning...
The National Weather Service in Sioux Falls has issued a
* Flash Flood Watch for portions of northwest Iowa... southwest
Minnesota and South Dakota... including the following areas...
in northwest Iowa... Lyon IA and Osceola. In southwest
Minnesota... Cottonwood... Jackson... Lincoln MN... Lyon MN...
Murray... Nobles... Pipestone and rock. In South Dakota...
Aurora... Bon Homme... Brookings... Brule... Charles Mix... Clay
SD... Davison... Douglas... Gregory... Hanson... Hutchinson...
Jerauld... Kingsbury... Lake... Lincoln SD... McCook... Miner...
Minnehaha... Moody... Sanborn... Turner and Yankton.
* Through Monday morning
* thunderstorms with the potential to produce locally heavy
rainfall are expected to expand across the area overnight.
Rainfall amounts of 2 to 4 inches or more are possible in some
locations... as slow-moving storms move across the region.
* Areas streams... creeks and rivers may climb to and exceed
bankfull. Low water spots will also likely fill with water and
cause potentially dangerous driving conditions. Very high
rainfall rates may also cause flash flooding in urban areas.
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.
Public Information Statement
Statement as of 4:54 PM CDT on July 5, 2015
... Severe Thunderstorm Watch safety rules...
A Severe Thunderstorm Watch means that conditions are favorable
for the development of severe weather in the designated area.
During a watch there is no cause for immediate concern. You should
go about your normal business... but be on the lookout and keep up
to date on the latest weather developments. Public safety
officials should activate prearranged plans.
A Severe Thunderstorm Warning... on the other hand... means that a
severe thunderstorm has been sighted or indicated by radar. People
in the path of the storm should take immediate action to safeguard
themselves and their family.
Technically speaking... a severe thunderstorm is defined as having
wind gusts which exceed 58 mph and/or hail at least 1 inch in
diameter. However... as these storms develop... they can be
accompanied by tornadoes. Listen to NOAA Weather Radio or other
local media to learn if a warning has been issued for your area.
Also... keep a close watch on the thunderstorms as tornadoes can
form quickly. If you see a tornado... move quickly into a basement.
If none is available... seek shelter in a small interior room on
the lowest floor and stay away from outside walls... doors and
windows. In schools... factories or other institutional type
buildings... stay out of auditoriums and gymnasiums.