Alert archive / California / Flash Flood Warnings in 2016

Flash Flood Warning 31, NWS Las Vegas, NV

July 1, 2016Inyo County, California

NWS Las Vegas, NV issued this flash flood warning at Jul 1, 2016, 8:41 PM PDT for Inyo County, California. It was in force for 4 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 1, 2016, 8:41 PM PDT (03:41 UTC)
Expired
Jul 2, 2016, 12:45 AM PDT
In force
4 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

County Inyo County, CA

The radar

The Edwards AFB radar (KEYX), 192 km from the middle of the area, began a volume at 03:44 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.

What was reported inside it

TimeReportWhereRemark
Jul 1, 9:14 PM PDTFLASH FLOOD6 Ene Stovepipe Wells, CAHIGHWAY PATROL REPORTS FLOODING OVER ROADWAY AT MILE MARKER 97 ON HIGHWAY 190. FLOODING WITH MUD IN THE ROADWAY AT MILE MARKER 100. PLOW TRUCKS DISPATCHED TO ASSIST IN CLEARING DEBRIS.

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 00:00Z, 3.7 hours before the alert went out and 157 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 00:00Z on 2016-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 998 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 00:00Z on 2016-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
998 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
2623 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

099 
WGUS55 KVEF 020341
FFWVEF
CAC027-020745-
/O.NEW.KVEF.FF.W.0031.160702T0341Z-160702T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
841 PM PDT FRI JUL 1 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

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

* UNTIL 1245 AM PDT

* AT 840 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  STOVEPIPE WELLS...FURNACE CREEK...
  SCOTTYS CASTLE AND MESQUITE SPRINGS CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3708 11732 3658 11665 3634 11721 3691 11757

$$

JH
2 follow-up statements
422 
WGUS75 KVEF 020503
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1003 PM PDT FRI JUL 1 2016

CAC027-020745-
/O.CON.KVEF.FF.W.0031.000000T0000Z-160702T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
1003 PM PDT FRI JUL 1 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM PDT FOR
CENTRAL INYO COUNTY...

AT 1000 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS HAD MAINLY
MOVED OUT OF THE WARNING AREA OVER DEATH VALLEY NATIONAL PARK.
HOWEVER...A THREAT OF FLASH FLOODING CONTINUES DUE TO RUNOFF FROM
HEAVY RAIN EARLIER. THERE WAS A REPORT OF ROADWAY FLOODING ON ROUTE
190. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
STOVEPIPE WELLS...FURNACE CREEK...SCOTTYS CASTLE AND MESQUITE SPRINGS
CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3708 11732 3658 11665 3634 11721 3691 11757

$$

JH
230 
WGUS75 KVEF 020736
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1236 AM PDT SAT JUL 2 2016

CAC027-020745-
/O.EXP.KVEF.FF.W.0031.000000T0000Z-160702T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
1236 AM PDT SAT JUL 2 2016

...THE FLASH FLOOD WARNING FOR CENTRAL INYO COUNTY WILL EXPIRE AT
1245 AM PDT...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 3708 11732 3658 11665 3634 11721 3691 11757

$$

JH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 5:26 PM PDTFlash Flood WarningVEFInyo3 hr
Jul 1, 10:20 PM PDTSevere Thunderstorm WarningVEFInyo25 min
Jul 1, 10:45 PM PDTSevere Thunderstorm WarningVEFInyo30 min
Jul 2, 1:26 AM PDTSevere Thunderstorm WarningVEFSan Bernardino49 min
Jul 2, 3:45 PM PDTSevere Thunderstorm WarningVEFSan Bernardino60 min
Jul 2, 3:56 PM PDTAreal Flood AdvisoryVEFSan Bernardino3 hr

Nearby

Flash Flood Warnings in California, 2016Every flash flood warning in 2016

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; radar from the NEXRAD Level II archive.