Johnson County, MO
Alerts
Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Saturday 04/18 1:59 AM CDT – Monday 04/20 5:48 AM CDT
Issued by NWS Kansas City/Pleasant Hill MO
The Flood Warning continues for the following rivers in Missouri
Big Creek at Blairstown affecting Cass, Henry and Johnson Counties.
What
Minor flooding is occurring and minor flooding is forecast.
Where
Big Creek at Blairstown.
When
Until early Monday morning.
Impacts
At 20.0 feet, The west bank of the creek begins to flood. At 23.0 feet, Flooding occurs at the west approach to the N Highway bridge located 0.2 miles west of Blairstown. Flooding also occurs across B Highway near Big Creek which is several miles northwest of Blairstown.
Additional Details
- At 1:00 AM CDT Saturday the stage was 21.8 feet. - Forecast...The river is expected to rise to a crest of 22.5 feet this morning. It will then fall below flood stage late tonight. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
What to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
This product along with additional weather and stream information is available at www.weather.gov/kc/.
Areas impacted
- Cass, MO
- Henry, MO
- Johnson, MO
Tips to stay safe
A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home.
- If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground.
- Never walk, swim, or drive through flood waters or flooded roads.
- Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams.
- If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary.
- Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
- If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.
In effect from Friday 04/17 4:00 PM CDT – Saturday 04/18 4:00 AM CDT
Issued by NWS Kansas City/Pleasant Hill MO
What
Flooding caused by excessive rainfall continues to be possible.
Where
Portions of Kansas, including the following areas, Johnson KS, Leavenworth, Linn KS, Miami and Wyandotte and Missouri, including the following areas, Bates, Carroll, Cass, Chariton, Clay, Cooper, Henry, Howard, Jackson, Johnson MO, Lafayette, Pettis, Platte, Ray and Saline.
When
Through late tonight.
Impacts
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks.
Additional Details
- A strong cold front moving into the region this afternoon and evening will be the focus for widespread thunderstorm development. Storms will be capable of producing heavy rainfall in a short amount of time. With recent rains across the region, areas receiving the heaviest rainfall this afternoon and evening may see localized instances of flash flooding. Additionally, thunderstorms may train over the same areas during the evening, particularly near and south of U.S. Highway 50. Should this setup materialize, several instances of flash flooding and river flooding may occur. - http://www.weather.gov/safety/flood
What to do
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Areas impacted
- Miami
- Linn
- Leavenworth
- Wyandotte
- Johnson
- Platte
- Clay
- Ray
- Carroll
- Chariton
- Jackson
- Lafayette
- Saline
- Howard
- Cass
- Johnson
- Pettis
- Cooper
- Bates
- Henry
Tips to stay safe
A Flood Watch means the area may experience a dangerous flooding event, and being prepared may save lives and property.
- Be aware of low-lying areas along your travel routes that are most likely to flood.
- Check your home’s emergency supplies, and make sure all members of the household know your emergency plan.
- Stay tuned for local weather updates on the situation as it develops.
If a Flood Warning is issued, it means that dangerous flooding is expected or already happening.
- Never walk, swim, or drive through flood waters or flooded roads.
- Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams.
If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground.
Briefing
From the forecaster
Severe Thunderstorms Today
Created by the NWS Kansas City/Pleasant Hill WFO
Severe weather continues to be expected this afternoon and evening. All severe hazards (large hail, damaging winds, and tornadoes) will be possible. However, large hail will be the primary threat during initial stages of storm development, with damaging winds becoming more likely as storms congeal into lines or clusters. Isolated tornadoes are also possible, especially if storms remain discrete. Stay weather aware today!
Seven-day weather risk overview
Daily weather risk summary
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