Alert archive / Kansas / Flash Flood Warnings in 2021

Flash Flood Warning 6, NWS Dodge City, KS

May 17, 2021Scott County, Kansas

NWS Dodge City, KS issued this flash flood warning at May 17, 2021, 10:20 PM CDT for Scott 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: May 17, 2021, 10:20 PM CDT (03:20 UTC)
Expired: May 18, 2021, 1:30 AM CDT
In force: 3 hr
Issued by: NWS Dodge City, KS
Area: Storm-based polygon
Flood severity: None

County Scott County, KS

The radar

The Goodland radar (KGLD), 98 km from the middle of the area, began a volume at 03:22 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

Dodge City, (KDDC), launched 00:00Z, 3.3 hours before the alert went out and 138 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: 456 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1128 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

830 
WGUS53 KDDC 180320
FFWDDC
KSC171-180630-
/O.NEW.KDDC.FF.W.0006.210518T0320Z-210518T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Dodge City KS
1020 PM CDT Mon May 17 2021

The National Weather Service in Dodge City has issued a

* Flash Flood Warning for...
  North Central Scott County in west central Kansas...

* Until 130 AM CDT.

* At 1020 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 5 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Scott State Lake.

Additional rainfall amounts of 1 to 2 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.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3870 10088 3864 10091 3864 10107 3870 10105
      3870 10104 3870 10103 3870 10100 3870 10098
      3870 10097 3870 10094 3870 10093 3870 10092
      3870 10091

FLASH FLOOD...RADAR INDICATED

$$

GERARD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:10 PM CDT	Special Weather Statement	DDC	Scott	50 min
May 17, 7:35 PM CDT	Special Weather Statement	DDC	Hamilton	55 min
May 17, 7:51 PM CDT	Special Weather Statement	DDC	Hamilton, Kearny	39 min
May 17, 7:56 PM CDT	Special Weather Statement	DDC	Morton, Stanton	64 min
May 17, 8:23 PM CDT	Special Weather Statement	DDC	Hamilton	52 min
May 17, 8:48 PM CDT	Special Weather Statement	DDC	Morton, Stanton	57 min
May 17, 9:39 PM CDT	Special Weather Statement	DDC	Morton, Stanton	66 min
May 17, 10:28 PM CDT	Special Weather Statement	DDC	Grant, Hamilton, Haskell, Kearny, Seward, Stevens	47 min
May 18, 12:42 AM CDT	Special Weather Statement	DDC	Clark, Comanche, Ford, Gray	48 min
May 18, 1:30 AM CDT	Special Weather Statement	DDC	Comanche, Ford, Hodgeman, Kiowa	45 min
May 18, 2:12 AM CDT	Special Weather Statement	DDC	Edwards, Hodgeman, Kiowa, Ness, Pawnee, Pratt	48 min
May 18, 2:50 PM CDT	Special Weather Statement	DDC	Stafford	25 min
May 18, 3:42 PM CDT	Special Weather Statement	DDC	Pawnee	33 min
May 18, 3:44 PM CDT	Special Weather Statement	DDC	Pratt	31 min
May 18, 4:11 PM CDT	Special Weather Statement	DDC	Rush	34 min
May 18, 4:32 PM CDT	Special Weather Statement	DDC	Pawnee	28 min
May 18, 4:45 PM CDT	Special Weather Statement	DDC	Hodgeman	30 min
May 18, 4:52 PM CDT	Areal Flood Advisory	DDC	Edwards, Ness, Pawnee, Rush, Stafford	3 hr
May 18, 6:25 PM CDT	Special Weather Statement	DDC	Trego	35 min

Nearby

Flash Flood Warnings in Kansas, 2021 Every 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.