Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 78, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 4, 2017, 3:28 PM PDT for Inyo County, California. It was in force for 3 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
- Aug 4, 2017, 3:28 PM PDT (22:28 UTC)
- Expired
- Aug 4, 2017, 6:30 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), 161 km from the middle of the area, began a volume at 22:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 3:54 PM PDT | FLASH FLOOD | 11 Wnw Death Valley Jun, CA | FLOODING AND DEBRIS ACROSS HWY 190. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 10.5 hours before the alert went out and 98 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
- 200 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1855 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
270
WGUS55 KVEF 042228
FFWVEF
CAC027-050130-
/O.NEW.KVEF.FF.W.0078.170804T2228Z-170805T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
328 PM PDT FRI AUG 4 2017
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Southeastern Inyo County in south central California...
* Until 630 PM PDT
* At 326 PM PDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area and in particular along Highway
190 between Death Valley Junction and Furnace Creek. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Furnace Creek, Shoshone, Death Valley Junction and Texas Springs
Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3664 11674 3611 11607 3593 11641 3615 11682
3652 11699
$$
Czyzyk2 follow-up statements
103
WGUS75 KVEF 042323
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
423 PM PDT FRI AUG 4 2017
CAC027-050130-
/O.CON.KVEF.FF.W.0078.000000T0000Z-170805T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Inyo CA-
423 PM PDT FRI AUG 4 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM PDT FOR
SOUTHEASTERN INYO COUNTY...
At 414 PM PDT, local law enforcement reported flooding with debris
over Highway 190 between Furnace Creek and Death Valley Junction.
Thunderstorms continue to produce very heavy rain along Highway 127
from Death Valley Junction to Shoshone.
Some locations that will experience flooding include...
Furnace Creek, Shoshone, Death Valley Junction and Texas Springs
Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3664 11674 3611 11607 3593 11641 3615 11682
3652 11699
$$
Czyzyk226
WGUS75 KVEF 050128
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
628 PM PDT FRI AUG 4 2017
CAC027-050133-
/O.EXP.KVEF.FF.W.0078.000000T0000Z-170805T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Inyo CA-
628 PM PDT FRI AUG 4 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN INYO COUNTY WILL EXPIRE
AT 630 PM PDT...
The heavy rain has ended in the warned area including Highway 190
and Highway 127 north of Shoshone. Runoff from earlier rain may
continue but the threat of flash flooding has diminished. However a
flash flood warning does continue elsewhere in southeastern Inyo
County until 745 pm. Please continue to heed any remaining road
closures.
LAT...LON 3664 11674 3611 11607 3593 11641 3615 11682
3652 11699
$$
CzyzykThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:43 PM PDT | Areal Flood Advisory | VEF | Inyo | 3 hr |
| Aug 4, 4:46 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
Nearby
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.