Osceola County Iowa Emergency Management

06/03/2026

🌩️ 𝗪𝗲𝗮𝘁𝗵𝗲𝗿 𝗨𝗽𝗱𝗮𝘁𝗲 𝗳𝗼𝗿 𝗧𝗼𝗻𝗶𝗴𝗵𝘁 & 𝗧𝗵𝘂𝗿𝘀𝗱𝗮𝘆 🌩️

Showers and thunderstorms are expected to move into the area tonight, with the greatest chances occurring after midnight. Breezy south winds and periods of heavy rain are possible, with localized higher rainfall amounts in stronger storms.

🌙 𝗧𝗼𝗻𝗶𝗴𝗵𝘁:
• 70% chance of showers and thunderstorms
• Storms most likely after midnight
• Gusty south winds up to 25 mph
• Locally heavy rainfall possible

🌤️ 𝗧𝗵𝘂𝗿𝘀𝗱𝗮𝘆:
• 50% chance of showers and thunderstorms, mainly from noon to 5 PM
• High near 80°F

Current trends suggest the better chance for severe storms Thursday will remain across south-central and southeast South Dakota. However, if storms develop farther south into northwest Iowa, **large hail and damaging winds** would be the primary threats.

⚠️ Forecast details may change depending on how storms evolve overnight. Stay weather aware and continue to monitor the latest forecasts and any watches or warnings that may be issued.

📱 Have multiple ways to receive weather alerts, especially while you're sleeping tonight.

06/03/2026

🌧️ Heavy Rainfall Possible Tonight 🌧️

Storms this evening and overnight may produce pockets of heavy rainfall, with some locations potentially receiving more than 2 inches of rain.

While widespread flash flooding is 𝐧𝐨𝐭 𝐞𝐱𝐩𝐞𝐜𝐭𝐞𝐝, isolated flooding impacts could occur in:
• Low-lying and flood-prone areas
• Locations with poor drainage
• Areas that have received heavy rainfall recently

⚠️ Never drive through flooded roadways. Just a small amount of moving water can be dangerous.

Stay weather aware and monitor forecasts for updates throughout the evening and overnight.

06/03/2026

https://www.facebook.com/photo?fbid=1465792988909972&set=a.231605425662074

While there is an isolated threat for severe storms near a Gregory to Huron line later this evening through overnight, the better chances will come Wednesday afternoon and evening.

06/01/2026

*** Outdated Information ***
Osceola County Alert:

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
257 IN EFFECT UNTIL 1 AM CDT MONDAY FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 8 COUNTIES

IN NORTHWEST IOWA

CHEROKEE LYON O'BRIEN
OSCEOLA PLYMOUTH SIOUX

IN WEST CENTRAL IOWA

IDA WOODBURY

IN MINNESOTA THIS WATCH INCLUDES 2 COUNTIES

IN SOUTHWEST MINNESOTA

NOBLES ROCK

IN NEBRASKA THIS WATCH INCLUDES 2 COUNTIES

IN NORTHEAST NEBRASKA

DAKOTA DIXON

IN SOUTH DAKOTA THIS WATCH INCLUDES 6 COUNTIES

IN SOUTHEAST SOUTH DAKOTA

CLAY LINCOLN MINNEHAHA
TURNER UNION YANKTON

THIS INCLUDES THE CITIES OF ALCESTER, ALLEN, BATTLE CREEK,
BERESFORD, CANTON, CENTERVILLE, CHANCELLOR, CHEROKEE, ELK POINT,
GEORGE, HARRISBURG, HARTLEY, HAWARDEN, HOLSTEIN, HULL, HURLEY,
IDA GROVE, INWOOD, IRENE, JEFFERSON, LARCHWOOD, LE MARS, LENNOX,
LUVERNE, MARION, NORTH SIOUX CITY, ORANGE CITY, PARKER, PONCA,
ROCK RAPIDS, ROCK VALLEY, SANBORN, SHELDON, SIBLEY, SIOUX CENTER,
SIOUX CITY, SIOUX FALLS, SOUTH SIOUX CITY, TEA, VERMILLION,
VIBORG, WAKEFIELD, WORTHINGTON, AND YANKTON.
null

05/29/2026

🏕️🌲 Camping? Fishing? Sitting by the bonfire? Don’t let the weather catch you off guard! ⛈️⚡

Whether you’re enjoying the great outdoors at the lake, campground, trail, or backyard cookout, stay connected with alerts from Osceola County Emergency Management 📲

🚨 Get notified about:
• Severe Thunderstorms
• Tornado Warnings
• Flash Flooding
• Hazardous Weather Alerts
• Emergency Information

Because the only surprise you want on your camping trip is who forgot the marshmallows. 🍫🔥😄

✅ Sign up for local emergency alerts today and stay weather aware wherever your adventure takes you!

With camping season now in full swing and we have weather potential this evening, here is a great way to stay informed at our campgrounds this summer.

05/28/2026

🚧Traffic Advisory - May 28, 2026

Message alert from Osceola County Secondary Roads:
-A County contractor will be performing warranty asphalt repair on a bridge on Oak Hill Avenue south of Ashton. The work entails milling and repaving asphalt on a county bridge.
-The road will be closed intermittently between 240th Street and 250th Street.
-The work is scheduled to begin May 28, 2026 and will continue for approximately 2 days weather permitting.

Please find an alternate route to travel during this time.

05/27/2026

*** Outdated Information ***
Osceola County Alert:
Special weather statement from National Weather US National Weather Service Sioux Falls South Dakota
523 PM CDT Wed May 27 2026
.....FUNNEL CLOUDS POSSIBLE ACROSS THE I-90 CORRIDOR THIS EVENING...

Showers and thunderstorms have developed across the I-90 corridor
and adjacent areas of northwestern Iowa this evening. Conditions
are favorable for funnel clouds with any shower or thunderstorm
that develops. These types of funnel clouds are usually short
lived. However, they can and occasionally do touch the ground and
cause minor damage. Therefore, if you see a funnel cloud and feel
your safety is threatened, please seek shelter.

A funnel cloud has already been reported in Rock county around
5:15 PM CDT with a developing thunderstorm.

Showers and storms will diminish after sunset.

Be aware! Stay safe!

05/25/2026

*** Outdated Information ***
Late night thunderstorms might roll through the area again tonight.

**THIS POST CONTAINS OUTDATED INFORMATION.**
It might be sunny right now, but keep an eye on the sky later Monday evening and overnight. A few scattered thunderstorms may try to form bringing risks of hail and brief gusty winds.

05/25/2026

Today, we honor and remember the brave men and women who made the ultimate sacrifice while serving our country. Their courage, dedication, and selfless service will never be forgotten.

As we spend time with family and friends this Memorial Day, let us also take a moment to reflect on the freedoms we enjoy because of those who gave everything to protect them.

From all of us at the Osceola County Emergency Management Agency, thank you to our fallen heroes and the families who carry their legacy forward every day. 🇺🇸

05/25/2026

*** Outdated Information ***
Osceola County Alert:

SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
Southeastern Lyon County in northwestern Iowa...
Southwestern Osceola County in northwestern Iowa...
Northeastern Sioux County in northwestern Iowa...
Northern O'Brien County in northwestern Iowa...

* Until 200 AM CDT.

* At 111 AM CDT, a severe thunderstorm was located over Matlock, or 7
miles north of Sheldon, moving southeast 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.

* This severe thunderstorm will be near...
Sheldon and Ashton around 115 AM CDT.
Sanborn around 120 AM CDT.
Archer around 125 AM CDT.
Melvin around 130 AM CDT.

Other locations in the path of this severe thunderstorm include
Primghar and Hartley.
For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.