Alert archive / Nebraska / Flash Flood Warnings in 2021

Flash Flood Warning 21, NWS Goodland, KS

May 26, 2021Hitchcock County, Red Willow County, Nebraska

NWS Goodland, KS issued this flash flood warning at May 26, 2021, 7:14 PM CDT for Hitchcock County, Red Willow County, Nebraska. It was in force for 8 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
May 26, 2021, 7:14 PM CDT (00:14 UTC)
Expired
May 27, 2021, 3:15 AM CDT
In force
8 hr
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Flood severity
None

Counties Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 114 km from the middle of the area, began a volume at 00:15 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

TimeReportWhereRemark
May 26, 9:31 PM CDTFLASH FLOOD1 Wnw Mccook, NEREPORT FROM MPING: RIVER/CREEK OVERFLOWING; CROPLAND/YARD/BASEMENT FLOODING.

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.2 hours before the alert went out and 115 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 square meters per square second.19395878Sfc1 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
124 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
1622 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
363 m²/s²
Significant tornado parameter
0.1
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

055 
WGUS53 KGLD 270014
FFWGLD
NEC087-145-270615-
/O.NEW.KGLD.FF.W.0021.210527T0014Z-210527T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
714 PM CDT Wed May 26 2021

The National Weather Service in Goodland has issued a

* Flash Flood Warning for...
  Southeastern Hitchcock County in southwestern Nebraska...
  Red Willow County in southwestern Nebraska...

* Until 115 AM CDT Thursday.

* At 714 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 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...
  McCook, Culbertson, Indianola, Bartley, Danbury and Lebanon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 10111 4011 10107 4025 10089 4027 10026
      4000 10022

FLASH FLOOD...RADAR INDICATED

$$

Lundquist
3 follow-up statements
692 
WGUS73 KGLD 270149
FFSGLD

Flash Flood Statement
National Weather Service Goodland KS
849 PM CDT Wed May 26 2021

NEC087-145-270615-
/O.CON.KGLD.FF.W.0021.000000T0000Z-210527T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hitchcock NE-Red Willow NE-
849 PM CDT Wed May 26 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT THURSDAY 
FOR SOUTHEASTERN HITCHCOCK AND RED WILLOW COUNTIES...

At 847 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. 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...
  McCook, Culbertson, Indianola, Bartley, Danbury and Lebanon.

Rainfall estimates of 2.5 to 3.5 inches have occurred in the 
warning.  Additional rainfall may occur later this evening from 
storms moving in from the west.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 10111 4011 10107 4025 10089 4027 10026
      4000 10022

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2.5-3.5 INCHES IN 3 HOURS 

$$

Lundquist
113 
WGUS53 KGLD 270600
FFWGLD
NEC087-145-270815-
/O.EXT.KGLD.FF.W.0021.000000T0000Z-210527T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
100 AM CDT Thu May 27 2021

The National Weather Service in Goodland has extended the

* Flash Flood Warning for...
  Southeastern Hitchcock County in southwestern Nebraska...
  Red Willow County in southwestern Nebraska...

* Until 315 AM CDT.

* At 1259 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain expected to move across the warned area shortly. Flash 
  flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding due to heavy rainfall.

  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...
  McCook, Culbertson, Indianola, Bartley, Danbury and Lebanon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 10111 4011 10107 4025 10089 4027 10026
      4000 10022

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2.5-3.5 INCHES IN 3 HOURS 

$$

ANW
574 
WGUS73 KGLD 270812
FFSGLD

Flash Flood Statement
National Weather Service Goodland KS
312 AM CDT Thu May 27 2021

NEC087-145-270822-
/O.EXP.KGLD.FF.W.0021.000000T0000Z-210527T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hitchcock NE-Red Willow NE-
312 AM CDT Thu May 27 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 315 AM CDT EARLY THIS MORNING 
FOR SOUTHEASTERN HITCHCOCK AND RED WILLOW COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat.

LAT...LON 4000 10111 4011 10107 4025 10089 4027 10026
      4000 10022

$$

ANW

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 7:33 PM CDTSevere Thunderstorm WarningGLDRed Willow42 min
May 26, 7:36 PM CDTSpecial Weather StatementGLDHitchcock39 min
May 26, 7:48 PM CDTSevere Thunderstorm WarningGLDHitchcock27 min
May 26, 8:02 PM CDTTornado WarningGLDHitchcock28 min
May 26, 8:03 PM CDTSevere Thunderstorm WarningGLDRed Willow57 min
May 26, 8:27 PM CDTSevere Thunderstorm WarningGLDHitchcock, Red Willow48 min
May 26, 8:43 PM CDTFlash Flood WarningGLDHitchcock6 hr
May 26, 9:02 PM CDTSevere Thunderstorm WarningGLDRed Willow17 min
May 26, 9:14 PM CDTSevere Thunderstorm WarningGLDRed Willow46 min
May 26, 9:38 PM CDTSevere Thunderstorm WarningGLDRed Willow22 min
May 26, 10:09 PM CDTSpecial Weather StatementGLDHitchcock, Red Willow66 min
May 26, 11:13 PM CDTSpecial Weather StatementGLDRed Willow62 min
May 27, 1:13 AM CDTSpecial Weather StatementGLDHitchcock, Red Willow62 min
May 27, 5:16 AM CDTRiver Flood AdvisoryGLDHitchcock11 hr
May 27, 7:40 AM CDTSpecial Weather StatementGLDHitchcock80 min

Nearby

Flash Flood Warnings in Nebraska, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.