Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 200, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 11, 2012, 1:20 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
- Sep 11, 2012, 1:20 PM PDT (20:20 UTC)
- Expired
- Sep 11, 2012, 4:15 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 Las Vegas radar (KESX), 154 km from the middle of the area, began a volume at 20:22 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 12:00Z, 8.3 hours before the alert went out and 82 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
- 2 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 1725 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
873 WGUS55 KVEF 112020 FFWVEF CAC027-112315- /O.NEW.KVEF.FF.W.0200.120911T2020Z-120911T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 120 PM PDT TUE SEP 11 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL INYO COUNTY IN EASTERN CALIFORNIA... * UNTIL 415 PM PDT. * AT 113 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM THUNDERSTORMS NEAR DEATH VALLEY JUNCTION. FLASH FLOODING IS LIKELY ALONG ROUTE 127 AND ROUTE 190 BETWEEN SHOSHONE AND FURNACE CREEK. * LOCATIONS IMPACTED INCLUDE... DEATH VALLEY JUNCTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3645 11649 3618 11614 3601 11636 3628 11675 $$ JH
2 follow-up statements
222 WGUS75 KVEF 112132 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 232 PM PDT TUE SEP 11 2012 CAC027-112315- /O.CON.KVEF.FF.W.0200.000000T0000Z-120911T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 232 PM PDT TUE SEP 11 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 PM PDT FOR EAST CENTRAL INYO COUNTY... AT 226 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS HAVE LEFT THE WARNING AREA NEAR DEATH VALLEY JUNCTION. HOWEVER...RUNOFF FROM EARLIER HEAVY RAIN COULD STILL BE FLOWING DOWN FROM HIGHER TERRAIN. LOCATIONS IMPACTED INCLUDE... PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3645 11649 3618 11614 3601 11636 3628 11675 $$ JH
103 WGUS75 KVEF 112306 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 406 PM PDT TUE SEP 11 2012 CAC027-112315- /O.EXP.KVEF.FF.W.0200.000000T0000Z-120911T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 406 PM PDT TUE SEP 11 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 415 PM PDT FOR EAST CENTRAL INYO COUNTY... THERE HAS BEEN NO RAIN IN QUITE A WHILE. ANY FLOODING WHICH MAY HAVE OCCURRED SHOULD HAVE SUBSIDED. LAT...LON 3645 11649 3618 11614 3601 11636 3628 11675 $$ JH
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 6:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 2:03 PM PDT | Flash Flood Warning | VEF | Inyo | 117 min |
| Sep 11, 3:57 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Sep 11, 4:02 PM PDT | Flash Flood Warning | VEF | Inyo | 57 min |
Nearby
Flash Flood Warnings in California, 2012Every flash flood warning in 2012
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.