Alert archive / California / Flash Flood Warnings in 2011

Flash Flood Warning 29, NWS Las Vegas, NV

July 6, 2011Inyo County, California

NWS Las Vegas, NV issued this flash flood warning at Jul 6, 2011, 4:07 PM PDT for Inyo County, California. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 6, 2011, 4:07 PM PDT (23:07 UTC)
Expired
Jul 6, 2011, 7:00 PM PDT
In force
3 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

County Inyo County, CA

What was reported inside it

TimeReportWhereRemark
Jul 6, 5:30 PM PDTFLASH FLOOD5 Se Furnace Creek, CATHE PARK SERVICE REPORTED 20 MULE CANYON ROAD WAS CLOSED DUE TO FLASH FLOODING. THE START TIME OF THIS EVENT IS AN ESTIMATE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 11.1 hours before the alert went out and 107 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 2011-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 213 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 2011-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
213 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
1843 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-32 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.

048 
WGUS55 KVEF 062307
FFWVEF
CAC027-070200-
/O.NEW.KVEF.FF.W.0029.110706T2307Z-110707T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
407 PM PDT WED JUL 6 2011

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

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

* UNTIL 700 PM PDT.

* AT 403 PM PDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES
  NORTHEAST OF TEXAS SPRINGS CAMPGROUND TO 23 MILES SOUTHEAST OF
  FURNACE CREEK...OR ALONG A LINE EXTENDING FROM 10 MILES NORTHEAST
  OF FURNACE CREEK TO 23 MILES SOUTHEAST OF FURNACE CREEK. THE STORMS
  PRODUCING FLASH FLOODING WERE NEARLY STATIONARY. THE ROAD TO DANTES
  VIEW WAS REPORTED TO BE CLOSED. 

* LOCATIONS IMPACTED INCLUDE...FURNACE CREEK AND TEXAS SPRINGS
  CAMPGROUND.

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 TWITTER #NWSVEGAS.

&&

LAT...LON 3664 11675 3619 11646 3611 11675 3659 11697

$$

JH
2 follow-up statements
200 
WGUS75 KVEF 070016
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
516 PM PDT WED JUL 6 2011

CAC027-070200-
/O.CON.KVEF.FF.W.0029.000000T0000Z-110707T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
516 PM PDT WED JUL 6 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM PDT FOR EAST
CENTRAL INYO COUNTY...

AT 509 PM PDT...LIGHT RAIN WAS STILL FALLING ALONG STATE ROUTE 190 
AND THE DANTES VIEW AREA. LOCAL LAW ENFORCEMENT REPORTED ROAD 
CLOSURES IN THESE AREAS DUE TO FLASH FLOODING. ADDITIONAL RUNOFF 
FROM HEAVY RAIN EARLIER REMAINS LIKELY THROUGH 700 PM.

LOCATIONS IMPACTED INCLUDE...FURNACE CREEK AND TEXAS SPRINGS 
CAMPGROUND AND DANTES VIEW.

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 TWITTER #NWSVEGAS.

&&

LAT...LON 3664 11675 3619 11646 3611 11675 3659 11697

$$

JH
748 
WGUS75 KVEF 070157
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
657 PM PDT WED JUL 6 2011

CAC027-070205-
/O.EXP.KVEF.FF.W.0029.000000T0000Z-110707T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
657 PM PDT WED JUL 6 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM PDT FOR EAST CENTRAL
INYO COUNTY...

HEAVY RAIN HAS NOT FALLEN IN THE WARNING AREA FOR QUITE AWHILE AND 
EARLIER FLOODING SHOULD HAVE SUBSIDED. NO ADDITIONAL FLOODING IS 
IMMINENT.

LAT...LON 3664 11675 3619 11646 3611 11675 3659 11697

$$

JH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 11:19 PM PDTAreal Flood AdvisoryVEFSan Bernardino76 min
Jul 5, 11:49 PM PDTFlash Flood WarningVEFSan Bernardino116 min
Jul 6, 12:04 AM PDTSevere Thunderstorm WarningVEFSan Bernardino41 min
Jul 6, 12:15 AM PDTFlash Flood WarningVEFSan Bernardino2 hr
Jul 6, 4:40 AM PDTFlash Flood WatchVEFInyo, San Bernardino17 hr
Jul 6, 12:14 PM PDTAreal Flood AdvisoryVEFInyo2 hr
Jul 6, 12:31 PM PDTAreal Flood AdvisoryVEFInyo119 min
Jul 6, 1:12 PM PDTFlash Flood WarningVEFInyo2 hr
Jul 6, 1:29 PM PDTFlash Flood WarningVEFInyo2 hr
Jul 6, 4:12 PM PDTFlash Flood WarningVEFInyo3 hr
Jul 6, 4:55 PM PDTFlash Flood WarningVEFInyo2 hr

Nearby

Flash Flood Warnings in California, 2011Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.