Alert archive / California / Flash Flood Warnings in 2016

Flash Flood Warning 113, NWS Las Vegas, NV

August 26, 2016Inyo County, San Bernardino County, California

NWS Las Vegas, NV issued this flash flood warning at Aug 26, 2016, 9:44 PM PDT for Inyo County, San Bernardino County, California. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 26, 2016, 9:44 PM PDT (04:44 UTC)
Expired
Aug 27, 2016, 12:45 AM PDT
In force
3 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

Counties Inyo County, CA, San Bernardino County, CA

The radar

The Las Vegas radar (KESX), 87 km from the middle of the area, began a volume at 04:46 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 00:00Z, 4.7 hours before the alert went out and 75 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 2016-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2016-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
5 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
3514 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

437 
WGUS55 KVEF 270444
FFWVEF
CAC027-071-270745-
/O.NEW.KVEF.FF.W.0113.160827T0444Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
944 PM PDT FRI AUG 26 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
  SOUTHEASTERN INYO COUNTY IN SOUTH CENTRAL CALIFORNIA...

* UNTIL 1245 AM PDT

* AT 943 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN OVER THE NORTHEAST CORNER OF SAN BERNARDINO COUNTY AND
  THE SOUTHEAST CORNER OF INYO COUNTY. THE HEAVIEST RAIN WAS FALLING
  OVER EXCELSIOR MINE ROAD. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF NORTH CENTRAL
  SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 11604 3591 11604 3590 11578 3583 11569
      3563 11556

$$

MORGAN
3 follow-up statements
660 
WGUS75 KVEF 270540
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1040 PM PDT FRI AUG 26 2016

CAC027-071-270745-
/O.CON.KVEF.FF.W.0113.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-INYO CA-
1040 PM PDT FRI AUG 26 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM PDT FOR
NORTH CENTRAL SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES...

AT 1039 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS WERE MOVING
SOUTHEAST AWAY FROM EXCELSIOR MINE ROAD. HOWEVER, VERY HEAVY RAIN
FELL OVER THE ROAD EARLIER, AND FLASH FLOODING REMAINS LIKELY.

FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHEASTERN
SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3562 11604 3591 11604 3590 11578 3583 11569
      3563 11556

$$

MORGAN
084 
WGUS75 KVEF 270648
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1148 PM PDT FRI AUG 26 2016

CAC027-071-270745-
/O.CON.KVEF.FF.W.0113.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-INYO CA-
1148 PM PDT FRI AUG 26 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM PDT FOR
NORTH CENTRAL SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES...

AT 1145 PM PDT...DOPPLER RADAR INDICATED THAT THUNDERSTORMS AND
HEAVY RAIN HAD MOVED EAST OF THE WARNED AREA. HOWEVER, BETWEEN 1 AND
2 INCHES OF RAIN IS ESTIMATED TO HAVE FALLEN OVER THE SECONDARY
ROADS NEAR KINGSTON PEAK AND EXCELSIOR MINE. 

FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF NORTH CENTRAL
SAN BERNARDINO AND SOUTHEASTERN INYO COUNTIES...INCLUDING EXCELSIOR
MINE ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3562 11604 3591 11604 3590 11578 3583 11569
      3563 11556

$$

JA
491 
WGUS75 KVEF 270738
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1238 AM PDT SAT AUG 27 2016

CAC027-071-270746-
/O.EXP.KVEF.FF.W.0113.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-INYO CA-
1238 AM PDT SAT AUG 27 2016

...THE FLASH FLOOD WARNING FOR NORTH CENTRAL SAN BERNARDINO AND
SOUTHEASTERN INYO COUNTIES WILL EXPIRE AT 1245 AM PDT...

THE HEAVY RAIN HAS ENDED AND FLOOD WATERS HAVE LIKELY RECEDED OVER
REMOTE AREA AROUND KINGSTON PEAK AND EXCELSIOR MINE. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT.

LAT...LON 3562 11604 3591 11604 3590 11578 3583 11569
      3563 11556

$$

JA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 9:23 PM PDTSevere Thunderstorm WarningVEFSan Bernardino52 min
Aug 26, 9:26 PM PDTFlash Flood WarningVEFSan Bernardino3 hr
Aug 26, 9:40 PM PDTSevere Thunderstorm WarningVEFSan Bernardino35 min
Aug 26, 10:01 PM PDTFlash Flood WarningVEFSan Bernardino3 hr
Aug 26, 10:07 PM PDTSevere Thunderstorm WarningVEFSan Bernardino38 min
Aug 26, 10:35 PM PDTFlash Flood WarningVEFSan Bernardino3 hr
Aug 26, 10:50 PM PDTSevere Thunderstorm WarningVEFSan Bernardino40 min
Aug 27, 5:06 AM PDTFlash Flood WarningVEFSan Bernardino4 hr
Aug 27, 4:04 PM PDTFlash Flood WarningVEFSan 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.