Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 173, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 30, 2012, 5:20 PM PDT for Inyo County, California. It was in force for 115 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
- Aug 30, 2012, 5:20 PM PDT (00:20 UTC)
- Expired
- Aug 30, 2012, 7:15 PM PDT
- In force
- 115 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Inyo County, CA
The nearest sounding before it
Las Vegas, NV (KVEF), launched 00:00Z, 0.3 hours before the alert went out and 111 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
- 20 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 3047 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
843 WGUS55 KVEF 310020 FFWVEF CAC027-310215- /O.NEW.KVEF.FF.W.0173.120831T0020Z-120831T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 520 PM PDT THU AUG 30 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN INYO COUNTY IN EASTERN CALIFORNIA... * UNTIL 715 PM PDT. * AT 518 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER SOUTHEASTERN INYO COUNTY... OR 21 MILES WEST OF SHOSHONE. THE STORM PRODUCING FLASH FLOODING WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF SOUTHEASTERN INYO COUNTY ALONG ROUTE 178 WEST OF SHOSHONE. 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 3584 11653 3585 11675 3601 11680 3602 11658 $$ JH
2 follow-up statements
191 WGUS75 KVEF 310121 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 621 PM PDT THU AUG 30 2012 CAC027-310215- /O.CON.KVEF.FF.W.0173.000000T0000Z-120831T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 621 PM PDT THU AUG 30 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM PDT FOR SOUTHEASTERN INYO COUNTY... AT 614 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAINFALL WAS DIMINISHING IN THE WARNING AREA. HOWEVER...RUNOFF FROM HEAVY RAINFALL EARLIER COULD STILL CAUSE FLOODING OF ROUTE 178 NEAR JUBILEE PASS. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF SOUTHEASTERN INYO COUNTY INCLUDING ROUTE 178. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3584 11653 3585 11675 3601 11680 3602 11658 $$ JH
772 WGUS75 KVEF 310208 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 708 PM PDT THU AUG 30 2012 CAC027-310217- /O.EXP.KVEF.FF.W.0173.000000T0000Z-120831T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 708 PM PDT THU AUG 30 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 715 PM PDT FOR SOUTHEASTERN INYO COUNTY... RAINFALL ENDED IN THE WARNING AREA. ANY FLOODING SHOULD HAVE SUBSIDED. LAT...LON 3584 11653 3585 11675 3601 11680 3602 11658 $$ JH
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 11:11 AM PDT | Flash Flood Watch | VEF | San Bernardino | 23 hr |
| Aug 31, 3:56 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.