Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 56, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 23, 2012, 12:05 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
- Jul 23, 2012, 12:05 PM PDT (19:05 UTC)
- Expired
- Jul 23, 2012, 2:00 PM PDT
- In force
- 115 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Inyo County, CA
The radar
The Las Vegas radar (KESX), 98 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 58 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
- 177 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 2252 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
767
WGUS55 KVEF 231905
FFWVEF
CAC027-232100-
/O.NEW.KVEF.FF.W.0056.120723T1905Z-120723T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1205 PM PDT MON JUL 23 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME SOUTHEASTERN INYO COUNTY IN EASTERN CALIFORNIA...
* UNTIL 200 PM PDT.
* AT 1202 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER EXTREME SOUTHEASTERN INYO
COUNTY...OR 19 MILES SOUTH OF PAHRUMP. THE STORM PRODUCING FLASH
FLOODING WAS NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...
CHARLESTON VIEW AND THE OLD SPANISH TRAIL.
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 3602 11603 3604 11595 3595 11583 3590 11577
3585 11595
$$
JH2 follow-up statements
904
WGUS75 KVEF 231951
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1251 PM PDT MON JUL 23 2012
CAC027-232100-
/O.CON.KVEF.FF.W.0056.000000T0000Z-120723T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
1251 PM PDT MON JUL 23 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM PDT FOR
EXTREME SOUTHEASTERN INYO COUNTY...
AT 1246 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING. THIS STORM WAS
LOCATED OVER EXTREME SOUTHEASTERN INYO COUNTY...OR 22 MILES EAST OF
SHOSHONE NEAR CHARLESTON VIEW. THE THUNDERSTORM WITH EXCESSIVE RAIN
WAS STARTING TO DRIFT SLOWLY TO THE SOUTH.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN INYO COUNTY INCLUDING
CHARLESTON VIEW AND THE OLD SPANISH TRAIL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3602 11603 3604 11595 3595 11583 3590 11577
3585 11595
$$
JH550
WGUS75 KVEF 232059
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
159 PM PDT MON JUL 23 2012
CAC027-232108-
/O.EXP.KVEF.FF.W.0056.000000T0000Z-120723T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
159 PM PDT MON JUL 23 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 PM PDT FOR EXTREME
SOUTHEASTERN INYO COUNTY...
RAINFALL ENDED OVER THE WARNING AREA AND ANY FLOODWATERS WILL BE
DIMINISHING.
LAT...LON 3602 11603 3604 11595 3595 11583 3590 11577
3585 11595
$$
JHThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 11:17 AM PDT | Areal Flood Advisory | VEF | Inyo | 49 min |
| Jul 23, 11:47 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 23, 12:12 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 48 min |
| Jul 23, 12:18 PM PDT | Flash Flood Warning | VEF | San Bernardino | 117 min |
| Jul 23, 1:54 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 66 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.