Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 202, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 11, 2012, 2:03 PM PDT for Inyo County, California. It was in force for 117 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, 2:03 PM PDT (21:03 UTC)
- Expired
- Sep 11, 2012, 4:00 PM PDT
- In force
- 117 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 12:00Z, 9.1 hours before the alert went out and 148 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.
189 WGUS55 KVEF 112103 FFWVEF CAC027-112300- /O.NEW.KVEF.FF.W.0202.120911T2103Z-120911T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 203 PM PDT TUE SEP 11 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL INYO COUNTY IN EASTERN CALIFORNIA... * UNTIL 400 PM PDT. * AT 156 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM 8 MILES SOUTH OF STOVEPIPE WELLS. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... STOVEPIPE WELLS AND ROUTE 190. 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 3672 11720 3662 11701 3639 11711 3643 11737 $$ JH
2 follow-up statements
894 WGUS75 KVEF 112221 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 321 PM PDT TUE SEP 11 2012 CAC027-112300- /O.CON.KVEF.FF.W.0202.000000T0000Z-120911T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 321 PM PDT TUE SEP 11 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR CENTRAL INYO COUNTY... AT 312 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STORMS HAD MOVED OUT OF THE WARNING AREA NEAR AND SOUTHWEST OF STOVEPIPE WELLS. HOWEVER...RUNOFF FROM EARLIER HEAVY RAIN COULD STILL CAUSE FLASH FLOODING FOR A LITTLE WHILE LONGER. LOCATIONS IMPACTED INCLUDE... PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3672 11720 3662 11701 3639 11711 3643 11737 $$ JH
788 WGUS75 KVEF 112251 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 351 PM PDT TUE SEP 11 2012 CAC027-112300- /O.EXP.KVEF.FF.W.0202.000000T0000Z-120911T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ INYO CA- 351 PM PDT TUE SEP 11 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 400 PM PDT FOR CENTRAL INYO COUNTY... THERE HAS BEEN NO RAIN IN QUITE A WHILE. ANY FLOODING WHICH MAY HAVE OCCURRED SHOULD HAVE SUBSIDED. LAT...LON 3672 11720 3662 11701 3639 11711 3643 11737 $$ 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, 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.