Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 28, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Jun 30, 2021, 12:04 PM CDT for 4 counties in Missouri; Linn County, Miami County, Kansas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 30, 2021, 12:04 PM CDT (17:04 UTC)
- Expired
- Jun 30, 2021, 3:54 PM CDT
- In force
- 4 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Linn County, KS, Miami County, KS, Cass County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO
The radar
The Pleasant Hill radar (KEAX), 31 km from the middle of the area, began a volume at 17:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 5.1 hours before the alert went out and 110 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 247 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
396
WGUS53 KEAX 301704
FFWEAX
KSC107-121-MOC037-095-101-107-302100-
/O.NEW.KEAX.FF.W.0028.210630T1704Z-210630T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
1204 PM CDT Wed Jun 30 2021
The National Weather Service in Pleasant Hill MO has issued a
* Flash Flood Warning for...
Northwestern Linn KS County in east central Kansas...
Miami County in east central Kansas...
Cass County in west central Missouri...
Southeastern Jackson County in west central Missouri...
Johnson MO County in west central Missouri...
Southern Lafayette County in west central Missouri...
* Until 400 PM CDT.
* At 1204 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by heavy rainfall.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Lee's Summit, Belton, Raymore, Warrensburg, Harrisonville,
Pleasant Hill, Paola, Odessa, Greenwood, Higginsville, Peculiar,
Osawatomie, Louisburg, Knob Noster, Concordia, Holden, Garden
City, Lake Winnebago, Lone Jack and Drexel.
This includes the following highways...
Interstate 70 in Missouri between mile markers 41 and 62.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3858 9507 3916 9349 3877 9350 3847 9447
3848 9461 3843 9461 3829 9506
FLASH FLOOD...RADAR INDICATED
$$
PP1 follow-up statement
334
WGUS73 KEAX 302054
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
354 PM CDT Wed Jun 30 2021
KSC107-121-MOC037-095-101-107-302104-
/O.CAN.KEAX.FF.W.0028.000000T0000Z-210630T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Linn KS KS-Miami KS-Cass MO-Jackson MO-Johnson MO MO-Lafayette MO-
354 PM CDT Wed Jun 30 2021
...FLASH FLOOD WARNING FOR NORTHWESTERN LINN KS, MIAMI, CASS,
SOUTHEASTERN JACKSON, JOHNSON MO AND SOUTHERN LAFAYETTE COUNTIES HAS
BEEN REPLACED WITH A FLOOD WARNING...
LAT...LON 3858 9507 3916 9349 3877 9350 3847 9446
3848 9461 3843 9461 3829 9506
$$
PPThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:38 AM CDT | Flash Flood Warning | EAX | Clay, Jackson, Platte, Ray | 4 hr |
| Jun 30, 9:06 AM CDT | River Flood Warning | EAX | Bates | 59 hr |
| Jun 30, 10:28 AM CDT | River Flood Warning | EAX | Carroll, Lafayette, Saline | 40 hr |
| Jun 30, 11:06 AM CDT | River Flood Warning | EAX | Jackson | 3 hr |
| Jun 30, 11:06 AM CDT | River Flood Warning | EAX | Clay, Ray | 9 hr |
| Jun 30, 12:22 PM CDT | Areal Flood Warning | EAX | Clay, Jackson, Platte | 18 hr |
| Jun 30, 12:50 PM CDT | River Flood Warning | EAX | Linn, Livingston | 34 hr |
| Jun 30, 2:12 PM CDT | River Flood Warning | EAX | Jackson | 6 hr |
| Jun 30, 2:33 PM CDT | Flash Flood Warning | EAX | Bates, Cass, Henry, Johnson, Pettis | 4 hr |
| Jun 30, 2:56 PM CDT | Special Weather Statement | EAX | Bates | 49 min |
| Jun 30, 3:54 PM CDT | Areal Flood Warning | EAX | Cass, Jackson, Johnson, Lafayette | 14 hr |
| Jun 30, 4:15 PM CDT | River Flood Warning | EAX | Jackson, Lafayette, Ray | 49 hr |
| Jun 30, 4:50 PM CDT | Flash Flood Warning | EAX | Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 5 more | 4 hr |
| Jun 30, 9:06 AM CDT | River Flood Warning | EAX | Miami | 3 days |
| Jun 30, 9:06 AM CDT | River Flood Warning | EAX | Linn | 4 days |
Nearby
Flash Flood Warnings in Missouri, 2021Flash Flood Warnings in Kansas, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.