Alert archive / Kansas / Flash Flood Warnings in 2021
Flash Flood Warning 34, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Aug 15, 2021, 5:14 AM CDT for Graham County, Kansas. It was in force for 6 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 15, 2021, 5:14 AM CDT (10:14 UTC)
- Expired
- Aug 15, 2021, 11:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Graham County, KS
The radar
The Grand Island radar (KUEX), 155 km from the middle of the area, began a volume at 10:15 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.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 10.2 hours before the alert went out and 172 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.
- Mixed-layer CAPE
- 1001 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1761 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
724
WGUS53 KGLD 151014
FFWGLD
KSC065-151615-
/O.NEW.KGLD.FF.W.0034.210815T1014Z-210815T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
514 AM CDT Sun Aug 15 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Eastern Graham County in northwestern Kansas...
* Until 1115 AM CDT Sunday.
* At 514 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. 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...
Bogue and Nicodemus.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3913 9961 3913 9984 3957 9981 3957 9960
FLASH FLOOD...RADAR INDICATED
$$
Lundquist2 follow-up statements
492
WGUS73 KGLD 151238
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
738 AM CDT Sun Aug 15 2021
KSC065-151615-
/O.CON.KGLD.FF.W.0034.000000T0000Z-210815T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Graham KS-
738 AM CDT Sun Aug 15 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT THIS
MORNING FOR EASTERN GRAHAM COUNTY...
At 738 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 5 inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Bogue and Nicodemus.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3913 9961 3913 9984 3957 9981 3957 9960
FLASH FLOOD...RADAR INDICATED
$$
Lundquist250 WGUS73 KGLD 151609 FFSGLD Flash Flood Statement National Weather Service Goodland KS 1109 AM CDT Sun Aug 15 2021 KSC065-151619- /O.EXP.KGLD.FF.W.0034.000000T0000Z-210815T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Graham KS- 1109 AM CDT Sun Aug 15 2021 ...FLASH FLOOD WARNING WILL EXPIRE AT 1115 AM CDT THIS MORNING FOR EASTERN GRAHAM COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. LAT...LON 3913 9961 3913 9984 3957 9981 3957 9960 $$ JRM
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 11:23 PM CDT | Special Weather Statement | GLD | Cheyenne | 67 min |
| Aug 15, 12:26 AM CDT | Special Weather Statement | GLD | Cheyenne | 34 min |
| Aug 15, 12:49 AM CDT | Special Weather Statement | GLD | Sherman | 26 min |
| Aug 15, 1:14 AM CDT | Special Weather Statement | GLD | Sherman | 31 min |
| Aug 15, 1:40 AM CDT | Severe Thunderstorm Warning | GLD | Cheyenne | 40 min |
| Aug 15, 1:53 AM CDT | Special Weather Statement | GLD | Sherman | 37 min |
| Aug 15, 2:10 AM CDT | Special Weather Statement | GLD | Wallace | 35 min |
| Aug 15, 2:28 AM CDT | Special Weather Statement | GLD | Sherman | 32 min |
| Aug 15, 2:45 AM CDT | Special Weather Statement | GLD | Wallace | 30 min |
| Aug 15, 3:31 AM CDT | Special Weather Statement | GLD | Graham | 29 min |
| Aug 15, 3:58 AM CDT | Special Weather Statement | GLD | Graham | 32 min |
| Aug 15, 4:30 AM CDT | Special Weather Statement | GLD | Graham | 30 min |
| Aug 15, 2:55 PM CDT | Special Weather Statement | GLD | Graham | 20 min |
| Aug 15, 3:26 PM CDT | Special Weather Statement | GLD | Graham | 19 min |
| Aug 15, 6:04 PM CDT | Severe Thunderstorm Warning | GLD | Gove | 26 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.