Boone County Emergency Management Agency Boone County, IA

10/09/2026

Boone County Alert:

SVRDMX

The National Weather Service in Des Moines has issued a Severe Thunderstorm Warning for...

Central Greene County in west central Iowa...
Northeastern Guthrie County in west central Iowa...
West central Boone County in central Iowa...
Northwestern Dallas County in central Iowa...

* Until midnight CDT.

* At 1107 PM CDT, a severe thunderstorm was located near Jefferson,
moving southeast at 30 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

* Locations impacted include...
Jefferson, Grand Junction, Scranton, Rippey, Jamaica, Dana, Beaver, and Jefferson Municipal Airport.
For your protection move to an interior room on the lowest floor of a building.

09/28/2026

Boone County Alert:

FLOOD WATCH IN EFFECT FROM TUESDAY EVENING THROUGH LATE THURSDAY NIGHT
* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Much of central Iowa.

* WHEN...From Tuesday evening through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- A prolong period of showers and storms is forecast Tuesday night through Thursday evening. This rain will fall on saturated soil.
Rainfall totals will range from 2 to 4 inches in a southwest to northeast oriented band across central Iowa, with locally higher amounts likely. This rainfall may lead to flash flooding. In addition, poor drainage and low lying area may experience ponding. All this rainfall will cause rises on areas rivers, which may exceed flood stage in at least a few locations.
For the latest stream observations and forecasts refer to weather.gov/desmoines/water.

09/22/2026

Boone County Emergency Management is aware of the confirmed case of Highly Pathogenic Avian Influenza (H5N1 HPAI) in a multi-species backyard flock in Boone County.

We have been in communication with the Iowa Department of Agriculture and Land Stewardship (IDALS), Iowa Health and Human Services (HHS), and Iowa Homeland Security and Emergency Management regarding the case. IDALS and USDA are managing the response and have not requested any additional assistance or resources from Boone County at this time.

A few important things for the public to know:

• The CDC continues to consider the risk to the general public to be low.

• Human infections are uncommon and have generally occurred after close, prolonged, and unprotected contact with infected animals or contaminated environments. Current U.S. cases have not been linked to person-to-person spread.

• The term “highly pathogenic” describes how severely the virus affects domestic poultry. It does not describe the level of risk to people.

• Eggs and poultry products remain safe to eat when properly handled and cooked to an internal temperature of 165°F.

• Poultry producers and backyard flock owners should review their biosecurity practices and watch their birds for unusual illness or deaths. Suspected cases should be reported to a veterinarian and IDALS at 515-281-5305.

• Anyone who finds five to ten or more sick or dead wild birds in one area should report the finding to Iowa DNR wildlife staff.

Additional information is available in the full IDALS press release linked below:

Highly Pathogenic Avian Influenza Detected in a Multi-Species Backyard Flock in Boone County DES MOINES, Iowa (Sept. 22, 2026) - The Iowa Department of Agriculture and Land Stewardship and the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have dete...

09/21/2026

UPDATE: Thank you everyone who reached out to us, who shared this post, and offered support we have found a space willing to help us out!

🚨 URGENT: EMERGENCY SHELTER SPACE NEEDED 🚨

An apartment complex fire early this morning displaced approximately 20 Boone County residents. We are urgently seeking a church, community organization, or other facility with a large indoor space that could host a temporary Red Cross shelter for the next eight days.

We are only asking for the use of the space. The American Red Cross will staff, supply, and manage the shelter operation.

If your organization may be able to help, please contact Boone County Emergency Management:

📞 515-709-1541
💬 Send us a direct message through Facebook

Even if you cannot provide a space, please share this post so we can reach an organization that can assist.

09/14/2026

***OUTDATED INFO***

Boone County Alert:

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 669 IN
EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 17 COUNTIES

IN CENTRAL IOWA

BOONE DALLAS POLK

IN SOUTH CENTRAL IOWA

CLARKE MADISON RINGGOLD
UNION WARREN

IN SOUTHWEST IOWA

ADAIR ADAMS CASS
TAYLOR

IN WEST CENTRAL IOWA

AUDUBON CARROLL CRAWFORD
GREENE GUTHRIE

THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON,
BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CORNING,
CRESTON, DENISON, DES MOINES, EARLHAM, EXIRA, FONTANELLE,
GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LENOX,
MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY, STUART,
WAUKEE, AND WINTERSET.

* PRIMARY THREATS INCLUDE...

A COUPLE TORNADOES POSSIBLE.
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80
MPH LIKELY.
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE.

PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : 40%
PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 20%
PROB OF 10 OR MORE SEVERE WIND EVENTS : 60%
PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 60%
PROB OF 10 OR MORE SEVERE HAIL EVENTS : 40%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : >95%
MEAN STORM MOTION /MPH/ : NE 35
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09/14/2026

Boone County Alert:

FLOOD WATCH IN EFFECT FROM 7 AM CDT MONDAY THROUGH TUESDAY MORNING
* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of southwestern, central, and northeastern Iowa.

* WHEN...From 7 AM CDT Monday through Tuesday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers,.creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Several rounds of showers and thunderstorms are likely from Monday morning through Monday night. While rainfall amounts in some areas will be modest, there will be pockets of heavier rainfall that may lead to flooding, especially if multiple rounds fall in the same area. In addition, several more rounds of heavy
rainfall are expected later this week, from Tuesday onward, and this watch might need to be extended or succeeded by more watches
later.

For the latest stream observations and forecasts refer to
weather.gov/desmoines/water.

09/08/2026

***OUTDATED INFO***

Boone County Alert:

SVRDMX

The National Weather Service in Des Moines has issued a Severe Thunderstorm Warning for...

Polk County in central Iowa...
Southern Story County in central Iowa...
Southwestern Marshall County in central Iowa...
Western Jasper County in central Iowa...
Southeastern Boone County in central Iowa...

* Until 630 PM CDT.

* At 550 PM CDT, a severe thunderstorm was located over Alleman, or 7 miles north of Ankeny, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
Des Moines, Ames, West Des Moines, Ankeny, Urbandale, Johnston, Clive, Altoona, Pleasant Hill, Grimes, Nevada, Windsor Heights, Bondurant, Polk City, Huxley, Saylorville, Madrid, Mitchellville, Colfax, and Prairie City.

This includes the following highways...
Interstate 35 between mile markers 87 and 111.
Interstate 80 between mile markers 125 and 163.
Interstate 235 between mile markers 5 and 14.
For your protection move to an interior room on the lowest floor of a building.

09/06/2026

Boone County Alert:

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
661 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 16 COUNTIES

IN CENTRAL IOWA

BOONE DALLAS POLK

IN SOUTH CENTRAL IOWA

CLARKE DECATUR MADISON
RINGGOLD UNION WARREN

IN SOUTHWEST IOWA

ADAIR ADAMS CASS
TAYLOR

IN WEST CENTRAL IOWA

AUDUBON GREENE GUTHRIE

THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BOONE, CARLISLE, CASEY, CORNING, CRESTON, DES MOINES, EARLHAM, EXIRA, FONTANELLE, GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LAMONI, LENOX, LEON, MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY, STUART, WAUKEE, AND WINTERSET.

* PRIMARY THREATS INCLUDE...

SCATTERED 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 : = 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 : 80%
MEAN STORM MOTION /MPH/ : E 15

09/04/2026

***DUE TO THE RISK OF SEVERE WEATHER TODAY OUTDOOR WARNING SIREN TESTING HAS BEEN CANCELLED***

📢 SEPTEMBER OUTDOOR WARNING SIREN TESTING

Due to the Labor Day holiday, Boone County’s monthly Outdoor Warning Siren test will not be conducted on Monday, September 7.

Instead, the monthly test will take place:
📅 Monday, September 14
⏰ 1:00 PM
🌤️ Weather permitting

Outdoor Warning Sirens are normally tested on the first Monday of each month at 1:00 PM.
As always, testing will be postponed if severe weather or other conditions make testing inappropriate.

From all of us at Boone County Emergency Management, we wish everyone a happy, healthy, and safe Labor Day weekend! 🇺🇸

08/13/2026

***OUTDATED INFO***

Boone County Alert:

The National Weather Service in Des Moines has issued a Severe Thunderstorm Warning for...

Polk County in central Iowa...
Story County in central Iowa...
Western Marshall County in central Iowa...
Northwestern Jasper County in central Iowa...
Eastern Boone County in central Iowa...
Eastern Dallas County in central Iowa...

* Until 715 AM CDT.

* At 626 AM CDT, severe thunderstorms were located along a line extending from near Boone to Big Creek State Park to 4 miles north of Earlham, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

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

This includes the following highways...
Interstate 35 between mile markers 68 and 72, and between mile
markers 87 and 121. Interstate 80 between mile markers 107 and 160. Interstate 235 between mile markers 1 and 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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