Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 207, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 11, 2012, 4:02 PM PDT for Inyo County, California. It was in force for 57 min. 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, 4:02 PM PDT (23:02 UTC)
- Expired
- Sep 11, 2012, 4:59 PM PDT
- In force
- 57 min
- 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), 179 km from the middle of the area, began a volume at 23:04 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, 11.0 hours before the alert went out and 242 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.
294 WGUS55 KVEF 112302 FFWVEF CAC027-120100- /O.NEW.KVEF.FF.W.0207.120911T2302Z-120912T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 402 PM PDT TUE SEP 11 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN INYO COUNTY IN EASTERN CALIFORNIA... * UNTIL 600 PM PDT. * AT 354 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR ANCIENT BRISTLECONE VC... OR 13 MILES EAST OF BISHOP. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... ANCIENT BRISTLECONE VC. AND ROUTE 168. 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 3709 11815 3745 11833 3746 11785 3728 11759 $$ JH
2 follow-up statements
956 WGUS75 KVEF 112357 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 457 PM PDT TUE SEP 11 2012 CAC027-120007- /O.CAN.KVEF.FF.W.0207.000000T0000Z-120912T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 457 PM PDT TUE SEP 11 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN INYO COUNTY... NO RAIN HAS FALLEN IN THE AREA AROUND WESTGARD PASS IN A WHILE AND THE THREAT OF FLASH FLOODING HAS ENDED. LAT...LON 3709 11815 3745 11833 3746 11785 3728 11759 $$ JH
169 WGUS75 KVEF 112359 CCA FFSVEF FLASH FLOOD STATEMENT...CORRECTION NATIONAL WEATHER SERVICE LAS VEGAS NV 459 PM PDT TUE SEP 11 2012 CAC027-120007- /O.CAN.KVEF.FF.W.0207.000000T0000Z-120912T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 459 PM PDT TUE SEP 11 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN INYO COUNTY... NO RAIN HAS FALLEN IN THE AREA AROUND WESTGARD PASS IN A WHILE AND THE THREAT OF FLASH FLOODING HAS ENDED. LAT...LON 3709 11815 3745 11833 3746 11785 3728 11759 $$ 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, 1:20 PM PDT | Flash Flood Warning | VEF | Inyo | 3 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 |
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.