Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 29, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 24, 2017, 4:09 PM PDT for Inyo County, San Bernardino 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
- Jul 24, 2017, 4:09 PM PDT (23:09 UTC)
- Expired
- Jul 24, 2017, 7:15 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Inyo County, CA, San Bernardino County, CA
The radar
The Las Vegas radar (KESX), 131 km from the middle of the area, began a volume at 23:10 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 |
|---|---|---|---|
| Jul 24, 5:46 PM PDT | FLASH FLOOD | 2 S Shoshone, CA | CHP REPORTED FLOODING ON SR-127 SOUTH OF SHOSHONE, CA. |
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, 11.2 hours before the alert went out and 94 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
- 261 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 2246 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
740 WGUS55 KVEF 242309 FFWVEF CAC027-071-250215- /O.NEW.KVEF.FF.W.0029.170724T2309Z-170725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 409 PM PDT MON JUL 24 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... North central San Bernardino County in southern California... Southeastern Inyo County in south central California... * Until 715 PM PDT * At 407 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Shoshone, SR 127 Near Dumont Dunes, Jubilee Pass Road/SR 178, Tecopa, and Dumont Dunes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3604 11606 3549 11589 3548 11678 3608 11686 $$ STEELE
3 follow-up statements
467 WGUS75 KVEF 250004 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 504 PM PDT MON JUL 24 2017 CAC027-071-250215- /O.CON.KVEF.FF.W.0029.000000T0000Z-170725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Bernardino CA-Inyo CA- 504 PM PDT MON JUL 24 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM PDT FOR NORTH CENTRAL SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES... At 501 PM PDT, Doppler radar indicated thunderstorms were decreasing over northern San Bernardino and southern Inyo County. Heavy rain has fallen over Highway 127, especially near and just north of Dumont Dunes, so flash flooding is still a concern. Some locations that will experience flooding include... Shoshone, Sr 127 Near Dumont Dunes, Tecopa and Dumont Dunes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3604 11606 3549 11589 3548 11678 3608 11686 $$ Morgan
249 WGUS75 KVEF 250110 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 610 PM PDT MON JUL 24 2017 CAC027-071-250215- /O.CON.KVEF.FF.W.0029.000000T0000Z-170725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Bernardino CA-Inyo CA- 610 PM PDT MON JUL 24 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM PDT FOR NORTH CENTRAL SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES... At 609 PM PDT, Doppler radar indicated light to moderate rain still falling over Highway 127 in northern San Bernardino and southern Inyo Counties. There is still a risk of flash flooding. Some locations that will experience flooding include... Shoshone, Sr 127 Near Dumont Dunes, Tecopa and Dumont Dunes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3604 11606 3549 11589 3548 11678 3608 11686 $$ Morgan
675 WGUS75 KVEF 250206 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 706 PM PDT MON JUL 24 2017 CAC027-071-250215- /O.EXP.KVEF.FF.W.0029.000000T0000Z-170725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Bernardino CA-Inyo CA- 706 PM PDT MON JUL 24 2017 ...THE FLASH FLOOD WARNING FOR NORTH CENTRAL SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES WILL EXPIRE AT 715 PM PDT... Heavy rain had ended over Highway 127 in southern Inyo and northern San Bernardino Counties, and flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3604 11606 3549 11589 3548 11678 3608 11686 $$ 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, 2:28 PM PDT | Flash Flood Warning | VEF | Inyo | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.