Alert archive / Kansas / Flash Flood Warnings in 2018

Flash Flood Warning 7, NWS Wichita, KS

August 30, 2018Labette County, Kansas

NWS Wichita, KS issued this flash flood warning at Aug 30, 2018, 10:29 AM CDT for Labette County, Kansas. 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: Aug 30, 2018, 10:29 AM CDT (15:29 UTC)
Expired: Aug 30, 2018, 1:30 PM CDT
In force: 3 hr
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Flood severity: None

County Labette County, KS

The radar

The Tulsa radar (KINX), 115 km from the middle of the area, began a volume at 15:31 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

Springfield, MO (KSGF), launched 12:00Z, 3.5 hours before the alert went out and 135 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: 1450 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 792 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

983 
WGUS53 KICT 301529
FFWICT
KSC099-301830-
/O.NEW.KICT.FF.W.0007.180830T1529Z-180830T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wichita KS
1029 AM CDT THU AUG 30 2018

The National Weather Service in Wichita has issued a

* Flash Flood Warning for...
  Labette County in southeastern Kansas...

* Until 130 PM CDT.

* At 1028 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to three inches of rain 
  have already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Parsons, Oswego, Chetopa, Altamont, Edna, Bartlett and Labette. 

Additional rainfall amounts of one to three inches are possible in 
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3705 9550 3738 9527 3738 9508 3704 9507

$$

Martin

1 follow-up statement

702 
WGUS73 KICT 301830
FFSICT

Flash Flood Statement
National Weather Service Wichita KS
130 PM CDT THU AUG 30 2018

KSC099-301839-
/O.EXP.KICT.FF.W.0007.000000T0000Z-180830T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Labette KS-
130 PM CDT THU AUG 30 2018

...THE FLASH FLOOD WARNING FOR LABETTE COUNTY WILL EXPIRE AT 130 PM
CDT...

The threat of flash flooding has decreased and the Flash Flood 
Warning will be allowed to expire. However, additional thunderstorms 
moving over the area may lead to ponding of water and other minor 
flooding. Remember, if you see water over any road, please turn 
around.

LAT...LON 3705 9550 3738 9527 3738 9508 3704 9507

$$

Martin

The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 30, 1:44 AM CDT	Special Weather Statement	ICT	Sedgwick	61 min
Aug 30, 2:10 AM CDT	Severe Thunderstorm Warning	ICT	Harvey, Sedgwick	54 min
Aug 30, 2:32 AM CDT	Special Weather Statement	ICT	Harvey	58 min
Aug 30, 2:35 AM CDT	Special Weather Statement	ICT	Greenwood	55 min
Aug 30, 2:39 AM CDT	Severe Thunderstorm Warning	ICT	Butler, Harvey, Sedgwick	66 min
Aug 30, 3:06 AM CDT	Special Weather Statement	ICT	Reno	54 min
Aug 30, 3:09 AM CDT	Severe Thunderstorm Warning	ICT	Butler, Chase	66 min
Aug 30, 3:12 AM CDT	Special Weather Statement	ICT	Sumner	63 min
Aug 30, 3:19 AM CDT	Severe Thunderstorm Warning	ICT	Butler, Greenwood	30 min
Aug 30, 4:00 AM CDT	Special Weather Statement	ICT	Marion	60 min
Aug 30, 4:02 AM CDT	Special Weather Statement	ICT	Chase	58 min
Aug 30, 4:17 AM CDT	Special Weather Statement	ICT	Chase	58 min
Aug 30, 4:25 AM CDT	Areal Flood Warning	ICT	Butler, Chase	6 hr
Aug 30, 5:00 AM CDT	Special Weather Statement	ICT	Chase	60 min
Aug 30, 6:47 AM CDT	Special Weather Statement	ICT	Chase	28 min
Aug 30, 6:50 AM CDT	Special Weather Statement	ICT	Allen	55 min
Aug 30, 7:25 AM CDT	Areal Flood Warning	ICT	Allen	6 hr
Aug 30, 7:28 AM CDT	Special Weather Statement	ICT	Wilson	62 min
Aug 30, 8:31 AM CDT	Flash Flood Warning	ICT	Allen, Woodson	7 hr
Aug 30, 10:08 AM CDT	Special Weather Statement	ICT	Labette	37 min
Aug 30, 1:34 PM CDT	Special Weather Statement	ICT	Labette	41 min
Aug 30, 2:37 PM CDT	Flash Flood Warning	ICT	Labette	3 hr
Aug 30, 3:47 PM CDT	Areal Flood Warning	ICT	Allen	18 hr

Nearby

Flash Flood Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.