Alert archive / Missouri / Flash Flood Warnings in 2018

Flash Flood Warning 2, NWS Kansas City, MO

March 26, 2018Chariton County, Howard County, Randolph County, Missouri

NWS Kansas City, MO issued this flash flood warning at Mar 26, 2018, 12:22 PM CDT for Chariton County, Howard County, Randolph County, Missouri. It was in force for 5 hr. 1 report 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: Mar 26, 2018, 12:22 PM CDT (17:22 UTC)
Expired: Mar 26, 2018, 5:15 PM CDT
In force: 5 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

Counties Chariton County, MO, Howard County, MO, Randolph County, MO

The radar

The Pleasant Hill radar (KEAX), 144 km from the middle of the area, began a volume at 17:23 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
Mar 26, 12:45 PM CDT	FLASH FLOOD	Moberly, MO	SEVERAL VEHICLES STALLED OUT UNDER RAIL BRIDGE ON ROUTE 63 IN MOBERLY. WATER UP TO THE HOOD ON A PICKUP TRUCK.

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

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 5.4 hours before the alert went out and 253 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 485 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 411 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted.

708 
WGUS53 KEAX 261722
FFWEAX
MOC041-089-175-262215-
/O.NEW.KEAX.FF.W.0002.180326T1722Z-180326T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
1222 PM CDT MON MAR 26 2018

The National Weather Service in Pleasant Hill has issued a

* Flash Flood Warning for...
  Southeastern Chariton County in north central Missouri...
  Central Randolph County in north central Missouri...
  North central Howard County in central Missouri...

* Until 515 PM CDT

* At 1221 PM CDT, trained weather spotters reported thunderstorms 
  producing heavy rain across the warned area, especially in the 
  Moberly area. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Moberly, Salisbury, Huntsville, Higbee, Renick and Clifton Hill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3931 9231 3928 9282 3926 9292 3928 9296
      3931 9295 3931 9304 3935 9307 3949 9270
      3951 9230

$$

CDB

1 follow-up statement

566 
WGUS73 KEAX 262215
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
515 PM CDT MON MAR 26 2018

MOC041-089-175-262224-
/O.EXP.KEAX.FF.W.0002.000000T0000Z-180326T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chariton MO-Randolph MO-Howard MO-
515 PM CDT MON MAR 26 2018

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN CHARITON...CENTRAL
RANDOLPH AND NORTH CENTRAL HOWARD COUNTIES WILL EXPIRE AT 515 PM
CDT...

Flooding continues throughout the area; however, the heavy rainfall 
and rapid rises that prompted the flash flood warning have ended. An 
areal flood warning is now in effect. Please continue to heed any 
remaining road closures.

LAT...LON 3931 9231 3928 9282 3926 9292 3928 9296
      3931 9295 3931 9304 3935 9307 3949 9270
      3951 9230

$$

Laflin

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 6:38 AM CDT	Severe Thunderstorm Warning	EAX	Cass	37 min
Mar 26, 7:09 AM CDT	Special Weather Statement	EAX	Jackson	36 min
Mar 26, 7:36 AM CDT	Special Weather Statement	EAX	Lafayette	39 min
Mar 26, 8:00 AM CDT	Flash Flood Warning	EAX	Cass, Jackson	6 hr
Mar 26, 8:25 AM CDT	Areal Flood Advisory	EAX	Johnson, Lafayette	5 hr
Mar 26, 8:50 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	69 hr
Mar 26, 9:06 AM CDT	Special Weather Statement	EAX	Saline	24 min
Mar 26, 10:27 AM CDT	River Flood Warning	EAX	Cooper, Saline	5 days
Mar 26, 12:07 PM CDT	Areal Flood Advisory	EAX	Chariton, Howard, Randolph	4 hr
Mar 26, 2:12 PM CDT	Areal Flood Warning	EAX	Cass, Jackson, Johnson, Lafayette, Saline	24 hr
Mar 26, 2:16 PM CDT	River Flood Warning	EAX	Howard	33 hr
Mar 26, 2:18 PM CDT	River Flood Warning	EAX	Johnson, Pettis	42 hr
Mar 26, 5:14 PM CDT	Areal Flood Warning	EAX	Chariton, Howard, Randolph	24 hr

Nearby

Flash Flood Warnings in Missouri, 2018 Every flash flood warning in 2018

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.