Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 8, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at May 27, 2021, 5:58 PM CDT for Clay County, Ray County, Missouri. It was in force for 3 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
- May 27, 2021, 5:58 PM CDT (22:58 UTC)
- Expired
- May 27, 2021, 9:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, MO, Ray County, MO
The radar
The Pleasant Hill radar (KEAX), 55 km from the middle of the area, began a volume at 22:58 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, 11.0 hours before the alert went out and 121 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
- 3 J/kg
- Mixed-layer CIN
- -459 J/kg
- Mixed-layer LCL
- 1511 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 343 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
828
WGUS53 KEAX 272258
FFWEAX
MOC047-177-280200-
/O.NEW.KEAX.FF.W.0008.210527T2258Z-210528T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
558 PM CDT Thu May 27 2021
The National Weather Service in Pleasant Hill MO has issued a
* Flash Flood Warning for...
Clay County in west central Missouri...
Northwestern Ray County in west central Missouri...
* Until 900 PM CDT.
* At 558 PM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 2.5 inches of rain have fallen. Additional rainfall amounts
of 0.5 to 1 inch are possible in the warned area. Flash flooding
is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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...
Kansas City, Liberty, Excelsior Springs, Kearney, Sugar Creek,
Lawson, Pleasant Valley, Glenaire, Crystal Lakes, Missouri City,
Excelsior Estates, River Bend, Woods Heights, Rayville, Mosby,
Homestead, Prathersville, Elmira and Knoxville.
This includes the following highways...
Interstate 35 in Missouri between mile markers 15 and 30.
Interstate 435 between mile markers 44 and 45.
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 3916 9441 3934 9455 3946 9428 3945 9421
3949 9421 3953 9412 3952 9403 3936 9393
3923 9424 3923 9430 3920 9432 3917 9438
3919 9439 3920 9441 3917 9440
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
PP1 follow-up statement
311
WGUS73 KEAX 280206
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
906 PM CDT Thu May 27 2021
MOC047-177-280216-
/O.EXP.KEAX.FF.W.0008.000000T0000Z-210528T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay MO-Ray MO-
906 PM CDT Thu May 27 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR CLAY AND NORTHWESTERN RAY
COUNTIES...
Flash Flooded is no longer occurring but flooded roads and low-lying
areas remain a concern. Please continue to heed remaining road
closures.
LAT...LON 3916 9441 3934 9455 3946 9428 3945 9421
3949 9421 3953 9412 3952 9403 3936 9393
3923 9424 3923 9430 3920 9432 3917 9438
3919 9439 3920 9441 3917 9440
$$
PPThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 1:20 AM CDT | River Flood Warning | EAX | Carroll | 32 hr |
| May 27, 1:20 AM CDT | River Flood Warning | EAX | Cooper, Saline | 55 hr |
| May 27, 1:20 AM CDT | River Flood Warning | EAX | Cass, Henry, Johnson | 4 days |
| May 27, 1:20 AM CDT | River Flood Warning | EAX | Johnson, Pettis | 39 hr |
| May 27, 3:15 AM CDT | Special Weather Statement | EAX | Andrew | 45 min |
| May 27, 3:51 AM CDT | Special Weather Statement | EAX | Clay, Clinton | 39 min |
| May 27, 4:05 AM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Clinton, Daviess, DeKalb | 40 min |
| May 27, 4:26 AM CDT | Special Weather Statement | EAX | Caldwell, Carroll | 49 min |
| May 27, 4:50 AM CDT | Special Weather Statement | EAX | Henry | 40 min |
| May 27, 5:27 AM CDT | Special Weather Statement | EAX | Chariton, Linn, Macon, Sullivan | 48 min |
| May 27, 5:37 AM CDT | Special Weather Statement | EAX | Pettis | 38 min |
| May 27, 6:22 AM CDT | River Flood Warning | EAX | Clay, Ray | 27 hr |
| May 27, 6:28 AM CDT | Special Weather Statement | EAX | Platte | 32 min |
| May 27, 6:51 AM CDT | Special Weather Statement | EAX | Jackson | 39 min |
| May 27, 7:51 AM CDT | Areal Flood Advisory | EAX | Bates, Cass | 71 min |
| May 27, 8:31 AM CDT | Areal Flood Advisory | EAX | Henry, Johnson, Pettis | 31 min |
| May 27, 9:02 AM CDT | Flash Flood Warning | EAX | Bates, Cass | 3 hr |
| May 27, 9:02 AM CDT | Flash Flood Warning | EAX | Henry, Johnson, Pettis | 3 hr |
| May 27, 9:35 AM CDT | River Flood Warning | EAX | Bates, Cass, Henry | 56 hr |
| May 27, 10:50 AM CDT | Flash Flood Watch | EAX | Bates, Cass, Henry, Johnson, Pettis | 8 hr |
| May 27, 11:23 AM CDT | River Flood Warning | EAX | Bates | 4 days |
| May 27, 11:46 AM CDT | Areal Flood Warning | EAX | Henry, Johnson, Pettis | 9 hr |
| May 27, 11:46 AM CDT | Areal Flood Warning | EAX | Bates, Cass | 9 hr |
| May 27, 12:25 PM CDT | River Flood Warning | EAX | Howard | 8 hr |
| May 27, 12:25 PM CDT | River Flood Warning | EAX | Cooper | 19 hr |
| May 27, 4:50 PM CDT | Special Weather Statement | EAX | Clay | 40 min |
| May 27, 4:51 PM CDT | Areal Flood Advisory | EAX | Clay, Jackson, Platte | 3 hr |
| May 27, 5:05 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Ray | 25 min |
| May 27, 5:40 PM CDT | Severe Thunderstorm Warning | EAX | Platte | 35 min |
| May 27, 5:55 PM CDT | Flash Flood Warning | EAX | Clay, Jackson, Platte | 3 hr |
| May 27, 6:11 PM CDT | Special Weather Statement | EAX | Clay | 34 min |
Nearby
Flash Flood Warnings in Missouri, 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.