Alert archive / California / Flash Flood Warnings in 2012

Flash Flood Warning 2, NWS Las Vegas, NV

July 13, 2012Inyo County, California

NWS Las Vegas, NV issued this flash flood warning at Jul 13, 2012, 1:22 PM PDT for Inyo County, California. It was in force for 113 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 13, 2012, 1:22 PM PDT (20:22 UTC)
Expired
Jul 13, 2012, 3:15 PM PDT
In force
113 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, 8.4 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 12:00Z on 2012-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2012-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2268 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

146 
WGUS55 KVEF 132022
FFWVEF
CAC027-132215-
/O.NEW.KVEF.FF.W.0002.120713T2022Z-120713T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
122 PM PDT FRI JUL 13 2012

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL INYO COUNTY IN EASTERN CALIFORNIA...

* UNTIL 315 PM PDT.

* AT 115 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER CENTRAL INYO COUNTY IN 
  DEATH VALLEY NATIONAL PARK...OR   21 MILES SOUTH OF STOVEPIPE 
  WELLS. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  WILDROSE ROAD ABOUT 15 MILES EAST OF PANAMINT SPRINGS

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 3637 11727 3639 11711 3619 11704 3618 11724

$$

JA
2 follow-up statements
981 
WGUS75 KVEF 132122
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
222 PM PDT FRI JUL 13 2012

CAC027-132215-
/O.CON.KVEF.FF.W.0002.000000T0000Z-120713T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
222 PM PDT FRI JUL 13 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM PDT FOR
CENTRAL INYO COUNTY...

AT 216 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN.  THIS STORM HAS 
BEEN STATIONARY AND WAS LOCATED IN DEATH VALLEY NATIONAL PARK ABOUT 
15 MILES SOUTHWEST OF STOVEPIPE WELLS OVER WILDROSE ROAD AND WAS 
EXPANDED NORTHWARD ACROSS STATE ROUTE 190 NEAR TOWNE PASS. DOPPLER
RADAR ESTIMATED RAINFALL AMOUNTS OVER ONE INCH AN HOUR WITH THIS 
STORM.

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 3637 11727 3639 11713 3631 11708 3621 11705
      3618 11718 3618 11724

$$

JA
446 
WGUS75 KVEF 132212
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
312 PM PDT FRI JUL 13 2012

CAC027-132220-
/O.EXP.KVEF.FF.W.0002.000000T0000Z-120713T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
312 PM PDT FRI JUL 13 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 315 PM PDT FOR CENTRAL INYO
COUNTY...

THE FLASH FLOOD WARNING ORIGINALLY FOR WILD ROSE ROAD IN DEATH 
VALLEY NATIONAL PARK WAS EXPANDED TO INCLUDE HIGHWAY 190 NEAR TOWNE 
PASS AND EXTENDED UNTIL 5 PM PDT.

LAT...LON 3637 11727 3639 11713 3631 11708 3621 11705
      3618 11718 3618 11724

$$

JA

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 6:03 AM PDTAreal Flood AdvisoryVEFSan Bernardino117 min
Jul 13, 7:03 AM PDTAreal Flood AdvisoryVEFSan Bernardino117 min
Jul 13, 2:55 PM PDTFlash Flood WarningVEFInyo2 hr
Jul 13, 3:51 PM PDTFlash Flood WarningVEFSan Bernardino114 min
Jul 13, 4:09 PM PDTFlash Flood WarningVEFSan Bernardino2 hr
Jul 13, 4:16 PM PDTFlash Flood WarningVEFInyo119 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.