Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 93, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 21, 2017, 5:30 PM PDT for Inyo County, California. 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 21, 2017, 5:30 PM PDT (00:30 UTC)
- Expired
- Aug 21, 2017, 8:30 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Inyo County, CA
The radar
The Edwards AFB radar (KEYX), 147 km from the middle of the area, began a volume at 00:29 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
Las Vegas, NV (KVEF), launched 00:00Z, 0.5 hours before the alert went out and 96 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
- 93 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 2577 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
737
WGUS55 KVEF 220030
FFWVEF
CAC027-220330-
/O.NEW.KVEF.FF.W.0093.170822T0030Z-170822T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
530 PM PDT MON AUG 21 2017
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Southeastern Inyo County in south central California...
* Until 830 PM PDT
* At 528 PM PDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to one inch of rain has
already fallen. Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Shoshone and Death Valley Junction including Badwater Basin Road,
State Route 128, and State Route 127.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3629 11692 3645 11647 3628 11626 3599 11625
3590 11642 3588 11679
$$
KG2 follow-up statements
147
WGUS75 KVEF 220145
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
645 PM PDT MON AUG 21 2017
CAC027-220330-
/O.CON.KVEF.FF.W.0093.000000T0000Z-170822T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Inyo CA-
645 PM PDT MON AUG 21 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM PDT FOR
SOUTHEASTERN INYO COUNTY...
At 643 PM PDT, Doppler radar indicated thunderstorms producing
moderate rain across the warned area. Up to one inch of rain has
already fallen. Flash flooding is expected to begin shortly.
Some locations that will experience flooding include...
Shoshone, Death Valley Junction, Badwater Basin Road, State Route
128, and State Route 127.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3629 11692 3645 11647 3628 11626 3599 11625
3590 11642 3588 11679
$$
KG310
WGUS75 KVEF 220328
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
828 PM PDT MON AUG 21 2017
CAC027-220335-
/O.EXP.KVEF.FF.W.0093.000000T0000Z-170822T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Inyo CA-
828 PM PDT MON AUG 21 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN INYO COUNTY WILL EXPIRE
AT 830 PM PDT...
The heavy rain ended over the southern half of Death Valley National
Park earlier this evening. Any flooding in Bad Water Basin and the
area south of Death Valley Junction has likely receded. Please
continue to heed any remaining road closures.
LAT...LON 3629 11692 3645 11647 3628 11626 3599 11625
3590 11642 3588 11679
$$
JANearby
Flash Flood Warnings in California, 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.