Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 28, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 24, 2017, 2:28 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
- Jul 24, 2017, 2:28 PM PDT (21:28 UTC)
- Expired
- Jul 24, 2017, 5:30 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 San Joaquin Valley radar (KHNX), 165 km from the middle of the area, began a volume at 21:29 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
Reno, NV (KREV), launched 12:00Z, 9.5 hours before the alert went out and 253 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
- 121 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 2620 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
445 WGUS55 KVEF 242128 FFWVEF CAC027-250030- /O.NEW.KVEF.FF.W.0028.170724T2128Z-170725T0030Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 228 PM PDT MON JUL 24 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... Rain and Snowmelt in... Northwestern Inyo County in south central California... * Until 530 PM PDT * At 227 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. Rapid snowmelt is also occurring and will add to the flooding. * Some locations that will experience flooding include... Bishop, Big Pine, Millpond Campground, Grandview Campground, Mesa, Ancient Bristlecone Visitors Center, Wilkerson, Browns Town Campground, Baker Creek Campground, Glacier View Campground, Pleasant Valley Campground, Round Valley, Dixon Lane-Meadow Creek, West Bishop and Dixon Lane-Meadow. Heavy rain is likely to impact the Westgard in the next couple of hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && LAT...LON 3746 11815 3708 11801 3703 11834 3746 11859 $$ STEELE
2 follow-up statements
085 WGUS75 KVEF 242253 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 353 PM PDT MON JUL 24 2017 CAC027-250030- /O.CON.KVEF.FF.W.0028.000000T0000Z-170725T0030Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inyo CA- 353 PM PDT MON JUL 24 2017 ...THE FLASH FLOOD WARNING FOR RAIN AND SNOWMELT REMAINS IN EFFECT UNTIL 530 PM PDT FOR NORTHWESTERN INYO COUNTY... At 351 PM PDT, local law enforcement reported debris across Glacier Lodge Road west of Big Pine. Heavy rain from thundersotmrs has added to snowmelt flooding, and will likely continue over the next hour or longer. Some locations that will experience flooding include... Bishop, Big Pine, Millpond Campground, Grandview Campground, Mesa, Ancient Bristlecone Visitors Center, Wilkerson, Browns Town Campground, Baker Creek Campground, Glacier View Campground, Pleasant Valley Campground, Round Valley, Dixon Lane-Meadow Creek, West Bishop and Dixon Lane-Meadow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && LAT...LON 3746 11815 3708 11801 3703 11834 3746 11859 $$ STEELE
343 WGUS75 KVEF 250021 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 521 PM PDT MON JUL 24 2017 CAC027-250031- /O.EXP.KVEF.FF.W.0028.000000T0000Z-170725T0030Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Inyo CA- 521 PM PDT MON JUL 24 2017 ...THE FLASH FLOOD WARNING FOR RAIN AND SNOWMELT IN NORTHWESTERN INYO COUNTY WILL EXPIRE AT 530 PM PDT... Heavy rain has ended over northern Inyo County, and flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3746 11815 3708 11801 3703 11834 3746 11859 $$ Morgan
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 3:44 AM PDT | Flash Flood Watch | VEF | San Bernardino | 40 hr |
| Jul 24, 12:31 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 4 hr |
| Jul 24, 4:09 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 3 hr |
| Jul 24, 4:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 119 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.