Alert archive / Kansas / Flash Flood Warnings in 2021

Flash Flood Warning 13, NWS Dodge City, KS

August 12, 2021Hamilton County, Kansas

NWS Dodge City, KS issued this flash flood warning at Aug 12, 2021, 5:49 PM MDT for Hamilton 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 12, 2021, 5:49 PM MDT (23:49 UTC)
Expired
Aug 12, 2021, 8:39 PM MDT
In force
3 hr
Issued by
NWS Dodge City, KS
Area
Storm-based polygon
Flood severity
None

County Hamilton County, KS

The radar

The Goodland radar (KGLD), 140 km from the middle of the area, began a volume at 23:51 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 12:00Z, 11.8 hours before the alert went out and 184 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2021-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1295 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2021-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1295 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
2035 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

039 
WGUS53 KDDC 122349
FFWDDC
KSC075-130300-
/O.NEW.KDDC.FF.W.0013.210812T2349Z-210813T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Dodge City KS
549 PM MDT Thu Aug 12 2021

The National Weather Service in Dodge City has issued a

* Flash Flood Warning for...
  Northern Hamilton County in southwestern Kansas...

* Until 900 PM MDT.

* At 549 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 3 inches of rain have 
  fallen. Additional rainfall amounts of 1 to 2 inches 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...
  Coolidge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3820 10204 3825 10155 3818 10154 3805 10173
      3801 10204 3803 10204 3804 10204 3805 10204
      3808 10204 3811 10204 3813 10204 3815 10204
      3817 10204 3819 10204

FLASH FLOOD...RADAR INDICATED

$$

BURGERT
2 follow-up statements
302 
WGUS73 KDDC 130214
FFSDDC

Flash Flood Statement
National Weather Service Dodge City KS
814 PM MDT Thu Aug 12 2021

KSC075-130300-
/O.CON.KDDC.FF.W.0013.000000T0000Z-210813T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hamilton KS-
814 PM MDT Thu Aug 12 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING 
FOR NORTHERN HAMILTON COUNTY...

At 814 PM MDT, Doppler radar indicated thunderstorms continue across 
the warned area. Between 3 and 5 inches of rain have fallen. 
Additional rainfall amounts up 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...
  Coolidge.

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.

&&

LAT...LON 3820 10204 3825 10155 3818 10154 3805 10173
      3801 10204 3803 10204 3804 10204 3805 10204
      3808 10204 3811 10204 3813 10204 3815 10204
      3817 10204 3819 10204

FLASH FLOOD...RADAR INDICATED

$$

BURGERT
967 
WGUS73 KDDC 130239
FFSDDC

Flash Flood Statement
National Weather Service Dodge City KS
839 PM MDT Thu Aug 12 2021

KSC075-130249-
/O.CAN.KDDC.FF.W.0013.000000T0000Z-210813T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hamilton KS-
839 PM MDT Thu Aug 12 2021

...FLASH FLOOD WARNING FOR NORTHERN HAMILTON COUNTY HAS BEEN 
REPLACED WITH A FLOOD WARNING...

LAT...LON 3820 10204 3825 10155 3818 10154 3805 10173
      3801 10204 3803 10204 3804 10204 3805 10204
      3808 10204 3811 10204 3813 10204 3815 10204
      3817 10204 3819 10204

$$

BURGERT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 6:09 PM MDTSpecial Weather StatementDDCLane36 min
Aug 11, 6:32 PM MDTSevere Thunderstorm WarningDDCFinney, Lane, Scott43 min
Aug 11, 7:52 PM MDTSpecial Weather StatementDDCKearny38 min
Aug 12, 1:52 PM MDTSpecial Weather StatementDDCLane38 min
Aug 12, 3:24 PM MDTSpecial Weather StatementDDCTrego36 min
Aug 12, 3:33 PM MDTSpecial Weather StatementDDCScott27 min
Aug 12, 4:00 PM MDTSpecial Weather StatementDDCTrego30 min
Aug 12, 4:25 PM MDTSpecial Weather StatementDDCScott35 min
Aug 12, 4:58 PM MDTSpecial Weather StatementDDCHamilton32 min
Aug 12, 5:04 PM MDTSpecial Weather StatementDDCEllis26 min
Aug 12, 5:31 PM MDTSpecial Weather StatementDDCEllis29 min
Aug 12, 5:44 PM MDTSevere Thunderstorm WarningDDCEllis46 min

Nearby

Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.