Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 5, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at May 27, 2021, 9:02 AM CDT for Miami County, Kansas; Bates County, Cass County, Missouri. It was in force for 3 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 27, 2021, 9:02 AM CDT (14:02 UTC)
- Expired
- May 27, 2021, 11:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Miami County, KS, Bates County, MO, Cass County, MO
The radar
The Pleasant Hill radar (KEAX), 27 km from the middle of the area, began a volume at 14:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 27, 9:30 AM CDT | FLASH FLOOD | 3 Ssw Paola, KS | WATER FLOWING OVER ROAD. |
| May 27, 9:45 AM CDT | FLASH FLOOD | 4 Nnw Creighton, MO | WATER OVER ROAD AT 307TH AND ZZ. |
| May 27, 9:45 AM CDT | FLASH FLOOD | 5 S Harrisonville, MO | WATER OVER NORTH SIDE OF ROAD. |
| May 27, 11:15 AM CDT | FLASH FLOOD | 3 W East Lynne, MO | WATER OVER THE ROADWAY AT 243 ST AND CAMP BRANCH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 2.0 hours before the alert went out and 113 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.
538
WGUS53 KEAX 271402 RRA
FFWEAX
KSC121-MOC013-037-271645-
/O.NEW.KEAX.FF.W.0005.210527T1402Z-210527T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
902 AM CDT Thu May 27 2021
The National Weather Service in Pleasant Hill MO has issued a
* Flash Flood Warning for...
Miami County in east central Kansas...
Northern Bates County in west central Missouri...
Cass County in west central Missouri...
* Until 1145 AM CDT.
* At 902 AM CDT, Doppler radar 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.
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...
Harrisonville, Paola, Spring Hill, Peculiar, Osawatomie,
Louisburg, Adrian, Garden City, Archie, Drexel, Cleveland,
Freeman, Creighton, East Lynne, Fontana, Lake Annette, Gunn City,
West Line, Merwin and New Lancaster.
Water over the road at the following locations. 307th and Highway Z
along with Missouri Highway 7 and Highway T. B Highway also
beginning to flood at Creighton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3873 9505 3873 9461 3867 9413 3866 9413
3866 9412 3857 9412 3857 9407 3839 9407
3839 9506
FLASH FLOOD...RADAR INDICATED
$$
SAW2 follow-up statements
640
WGUS73 KEAX 271615 RRA
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
1115 AM CDT Thu May 27 2021
KSC121-MOC013-037-271645-
/O.CON.KEAX.FF.W.0005.000000T0000Z-210527T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miami KS-Bates MO-Cass MO-
1115 AM CDT Thu May 27 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT THIS
MORNING FOR MIAMI, NORTHERN BATES AND CASS COUNTIES...
At 1115 AM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 2 and 4 inches
of rain have fallen. Additional rainfall amounts up to 0.5 inches
are possible in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Harrisonville, Paola, Spring Hill, Peculiar, Osawatomie,
Louisburg, Adrian, Garden City, Archie, Drexel, Cleveland,
Freeman, Creighton, East Lynne, Fontana, Lake Annette, Gunn City,
West Line, Merwin and New Lancaster.
Water over the road at the following locations in Missouri. 307th
and Highway Z along with Missouri Highway 7 and Highway T. B Highway
also flooded at Creighton. In Kansas flooding reported at 327th and
Old KC Road...also in the vicinity of South 169 Highway and 7
Highway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3873 9505 3873 9461 3867 9413 3866 9413
3866 9412 3857 9412 3857 9407 3839 9407
3839 9506
FLASH FLOOD...OBSERVED
$$
SAW665
WGUS73 KEAX 271649 RRA
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
1149 AM CDT Thu May 27 2021
KSC121-MOC013-037-271659-
/O.EXP.KEAX.FF.W.0005.000000T0000Z-210527T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miami KS-Bates MO-Cass MO-
1149 AM CDT Thu May 27 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR MIAMI, NORTHERN BATES AND
CASS COUNTIES...
Heavy rainfall has ended for the time being. However, runoff will
continue to produce flooding across the area for the next several
hours. This warning has been replaced by a flood warning in effect
until 830 pm this evening.
LAT...LON 3873 9505 3873 9461 3867 9413 3866 9413
3866 9412 3857 9412 3857 9407 3839 9407
3839 9506
$$
SAWThe 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 | Atchison, Leavenworth | 7 hr |
| May 27, 2:50 AM CDT | Special Weather Statement | EAX | Leavenworth, Wyandotte | 40 min |
| May 27, 6:19 AM CDT | Special Weather Statement | EAX | Johnson, Miami | 41 min |
| May 27, 6:28 AM CDT | Special Weather Statement | EAX | Leavenworth, Wyandotte | 32 min |
| May 27, 7:51 AM CDT | Areal Flood Advisory | EAX | Miami | 71 min |
| May 27, 9:49 AM CDT | River Flood Warning | EAX | Miami | 3 days |
| May 27, 9:57 AM CDT | River Flood Warning | EAX | Linn | 4 days |
| May 27, 10:50 AM CDT | Flash Flood Watch | EAX | Linn, Miami | 8 hr |
| May 27, 11:23 AM CDT | River Flood Warning | EAX | Linn | 4 days |
| May 27, 11:46 AM CDT | Areal Flood Warning | EAX | Linn, Miami | 9 hr |
| May 27, 4:08 PM CDT | Special Weather Statement | EAX | Wyandotte | 37 min |
| May 27, 4:51 PM CDT | Areal Flood Advisory | EAX | Johnson, Leavenworth, Wyandotte | 3 hr |
| May 27, 5:14 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Leavenworth, Wyandotte | 31 min |
| May 27, 5:40 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth, Wyandotte | 35 min |
| May 27, 5:55 PM CDT | Flash Flood Warning | EAX | Johnson, Leavenworth, Wyandotte | 3 hr |
| 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, 6:51 AM CDT | Special Weather Statement | EAX | Jackson | 39 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 | Henry, Johnson, Pettis | 3 hr |
| May 27, 9:35 AM CDT | River Flood Warning | EAX | Bates, Cass, Henry | 56 hr |
| May 27, 11:46 AM CDT | Areal Flood Warning | EAX | Henry, Johnson, Pettis | 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, 5:05 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Ray | 25 min |
| May 27, 5:58 PM CDT | Flash Flood Warning | EAX | Clay, Ray | 3 hr |
| May 27, 6:11 PM CDT | Special Weather Statement | EAX | Clay | 34 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.