Alert archive / Missouri / Flash Flood Warnings in 2024

Flash Flood Warning 13, NWS Kansas City, MO

May 8, 2024Pettis County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 8, 2024, 8:55 AM CDT for Pettis County, Missouri. It was in force for 6 hr. 2 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 8, 2024, 8:55 AM CDT (13:55 UTC)
Expired: May 8, 2024, 3:00 PM CDT
In force: 6 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

County Pettis County, MO

The radar

The Pleasant Hill radar (KEAX), 87 km from the middle of the area, began a volume at 13:54 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 8, 10:15 AM CDT	FLASH FLOOD	8 Se Green Ridge, MO	Vehicle mostly submerged on Highway 52 approximately 3/4 of a mile west of US 65. Occupant was rescued.
May 8, 10:20 AM CDT	FLASH FLOOD	6 S Green Ridge, MO	Highway 52 is under water in several places between US 65 and Windsor Missouri.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 1.9 hours before the alert went out and 190 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 727 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

074 
WGUS53 KEAX 081355
FFWEAX
MOC159-082000-
/O.NEW.KEAX.FF.W.0013.240508T1355Z-240508T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
855 AM CDT Wed May 8 2024

The National Weather Service in Pleasant Hill MO has issued a

* Flash Flood Warning for...
  Southern Pettis County in central Missouri...

* Until 300 PM CDT Wednesday.

* At 855 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 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...
  Windsor and Green Ridge.

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 3851 9351 3866 9351 3867 9306 3853 9307
      3854 9329 3851 9329

FLASH FLOOD...RADAR INDICATED

$$

SAW

2 follow-up statements

839 
WGUS73 KEAX 081538
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
1038 AM CDT Wed May 8 2024

MOC159-082000-
/O.CON.KEAX.FF.W.0013.000000T0000Z-240508T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pettis MO-
1038 AM CDT Wed May 8 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM CDT THIS 
AFTERNOON FOR SOUTHERN PETTIS COUNTY...

At 1038 AM CDT, Between 1 and 4 inches of rain have fallen across 
the warned area. Heavy rainfall has ended. Flash flooding is already 
occurring as a result from the runoff from this rainfall. Law 
enforcement officials report numerous locations along Highway 52 are 
under water between Windsor and US Highway 65.

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...
  Windsor and Green Ridge.

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 3851 9351 3866 9351 3867 9306 3853 9307
      3854 9329 3851 9329

FLASH FLOOD...OBSERVED

$$

SAW

277 
WGUS73 KEAX 082004
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
304 PM CDT Wed May 8 2024

MOC159-082014-
/O.EXP.KEAX.FF.W.0013.000000T0000Z-240508T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pettis MO-
304 PM CDT Wed May 8 2024

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHERN PETTIS COUNTY...

This warning is replaced by a flood warning in effect until 9 pm 
this evening.

&&

LAT...LON 3851 9351 3866 9351 3867 9306 3853 9307
      3854 9329 3851 9329

$$

SAW

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 6:06 AM CDT	Special Weather Statement	EAX	Buchanan	24 min
May 8, 6:30 AM CDT	Special Weather Statement	EAX	Cass	30 min
May 8, 6:40 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Johnson	35 min
May 8, 6:58 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	32 min
May 8, 7:10 AM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	Cass, Henry, Johnson	35 min
May 8, 7:14 AM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	Clay, Jackson, Platte	31 min
May 8, 7:34 AM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	Cass, Henry, Johnson	41 min
May 8, 7:37 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clay, Clinton, Ray	23 min
May 8, 8:00 AM CDT	Areal Flood Advisory	EAX	Bates, Cass, Henry, Johnson	18 min
May 8, 8:02 AM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson, Pettis	43 min
May 8, 8:18 AM CDT	Flash Flood Warning	EAX	Bates, Cass, Henry, Johnson	6 hr
May 8, 8:36 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Pettis	25 min
May 8, 8:39 AM CDT	Areal Flood Advisory	EAX	Pettis	16 min
May 8, 9:20 AM CDT	River Flood Warning	EAX	Linn, Livingston	20 hr
May 8, 9:22 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	31 hr
May 8, 11:36 AM CDT	River Flood Warning	EAX	Cooper	33 hr
May 8, 2:09 PM CDT	Special Weather Statement	EAX	Henry	36 min
May 8, 2:13 PM CDT	Areal Flood Warning	EAX	Cass, Henry, Johnson	19 hr
May 8, 2:18 PM CDT	Severe Thunderstorm Warning	EAX	Henry	27 min
May 8, 2:34 PM CDT	River Flood Warning	EAX	Johnson, Pettis	15 hr
May 8, 3:02 PM CDT	Areal Flood Warning	EAX	Pettis	6 hr
May 8, 5:26 PM CDT	Special Weather Statement	EAX	Henry	34 min

Nearby

Flash Flood Warnings in Missouri, 2024 Every flash flood warning in 2024

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.