Alert archive / Kansas / Flash Flood Warnings in 2017

Flash Flood Warning 16, NWS Dodge City, KS

July 22, 2017Trego County, Kansas

NWS Dodge City, KS issued this flash flood warning at Jul 22, 2017, 5:01 PM CDT for Trego 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
Jul 22, 2017, 5:01 PM CDT (22:01 UTC)
Expired
Jul 22, 2017, 8:00 PM CDT
In force
3 hr
Issued by
NWS Dodge City, KS
Area
Storm-based polygon
Flood severity
None

County Trego County, KS

The radar

The Dodge City radar (KDDC), 135 km from the middle of the area, began a volume at 22:04 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, 10.0 hours before the alert went out and 134 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 2017-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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 2017-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -109 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
133 J/kg
Mixed-layer CIN
-366 J/kg
Mixed-layer LCL
2481 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-109 m²/s²
0-3 km storm-relative helicity
-47 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

053 
WGUS53 KDDC 222201
FFWDDC
KSC195-230100-
/O.NEW.KDDC.FF.W.0016.170722T2201Z-170723T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Dodge City KS
501 PM CDT SAT JUL 22 2017

The National Weather Service in Dodge City has issued a

* Flash Flood Warning for...
  Trego County in west central Kansas...

* Until 800 PM CDT

* At 459 PM CDT, Doppler radar indicated several strong to severe 
  thunderstorms in Trego county, producing locally excessive 
  rainfall. Radar estimates up to 3 inches of rain has fallen over 
  west central Trego county, northwest of Trego Center, as of 5 pm. 
  With very slow and erractic storm movement, locally flooding 
  rainfall is expected. Additional rainfall amounts of 1 to 3 inches 
  are likely. 

* Some locations that will experience flooding include...
  Wakeeney, Ogallah, Collyer, Voda, Trego Center and Riga. 

LAT...LON 3913 9961 3894 9961 3894 9987 3877 9991
      3878 10015 3913 10015

$$

TURNER
2 follow-up statements
579 
WGUS73 KDDC 222311
FFSDDC

Flash Flood Statement
National Weather Service Dodge City KS
611 PM CDT SAT JUL 22 2017

KSC195-230100-
/O.CON.KDDC.FF.W.0016.000000T0000Z-170723T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trego KS-
611 PM CDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
TREGO COUNTY...

At 604 PM CDT, Doppler radar indicated scattered thunderstorms 
slowly diminishing across western and northeast Trego county. Areas 
of moderate to heavy rainfall will continue over the next hour. 

Radar indicates 4 to 5 inches of rain have fallen in northeast Trego 
county, north of Ogallah. Additionlly, 2 to 4 inches of rain have 
fallen west of Trego Center. 

Some locations that will experience flooding include...
Wakeeney, Ogallah, Collyer, Voda, Trego Center and Riga. 

Dangerous runoff will continue in creeks, streams, and ditches. Some 
roadways in northeast and western portions of Trego county may be 
impassable. Do not drive through water of unknown depth. Turn 
around, don't drown!

LAT...LON 3913 9961 3894 9961 3894 9987 3877 9991
      3878 10015 3913 10015

$$

TURNER
728 
WGUS73 KDDC 230032
FFSDDC

Flash Flood Statement
National Weather Service Dodge City KS
732 PM CDT SAT JUL 22 2017

KSC195-230041-
/O.CAN.KDDC.FF.W.0016.000000T0000Z-170723T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trego KS-
732 PM CDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING FOR TREGO COUNTY IS CANCELLED...

Radar indicates rainfall is ending. Flooding is no longer expected 
to pose a threat. Please continue to heed any remaining road 
closures.

LAT...LON 3913 9961 3894 9961 3894 9987 3877 9991
      3878 10015 3913 10015

$$

TURNER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 4:23 PM CDTSevere Thunderstorm WarningDDCTrego51 min
Jul 22, 4:29 PM CDTSpecial Weather StatementDDCBarber46 min
Jul 22, 5:12 PM CDTSevere Thunderstorm WarningDDCEllis, Trego32 min
Jul 22, 5:48 PM CDTSpecial Weather StatementDDCTrego42 min
Jul 22, 6:00 PM CDTSpecial Weather StatementDDCNess60 min
Jul 22, 6:16 PM CDTSpecial Weather StatementDDCHodgeman29 min

Nearby

Flash Flood Warnings in Kansas, 2017Every flash flood warning in 2017

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.