Alert archive / California / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Reno, NV

July 28, 2016Mono County, California

NWS Reno, NV issued this flash flood warning at Jul 28, 2016, 4:59 PM PDT for Mono 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
Jul 28, 2016, 4:59 PM PDT (23:59 UTC)
Expired
Jul 28, 2016, 8:00 PM PDT
In force
3 hr
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
None

County Mono County, CA

The radar

The San Joaquin Valley radar (KHNX), 190 km from the middle of the area, began a volume at 00:01 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

Reno, NV (KREV), launched 12:00Z, 12.0 hours before the alert went out and 195 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, Reno, NV at 12:00Z on 2016-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Reno, NV at 12:00Z on 2016-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3528 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

266 
WGUS55 KREV 282359
FFWREV
CAC051-290300-
/O.NEW.KREV.FF.W.0003.160728T2359Z-160729T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
459 PM PDT THU JUL 28 2016

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONO COUNTY IN NORTHERN CALIFORNIA...

* UNTIL 800 PM PDT

* AT 455 PM PDT...DOPPLER RADAR IS INDICATING MULTIPLE THUNDERSTORMS
  AND SHOWERS PRODUCING HEAVY RAIN ACROSS THE MARINA FIRE BURN SCAR
  AND NEAR LEE VINING. FLASH FLOODING AND DEBRIS FLOWS ARE LIKELY.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  LEE VINING...LEE VINING CAMPGROUNDS...LEE VINING AIRPORT AND ASPEN
  CAMPGROUND. 

RAINFALL OVER THE STEEP TERRAIN OF THE MARINA FIRE BURN SCAR WILL
RESULT IN A DEBRIS FLOW MOVING ACROSS HIGHWAY 395 NORTH OF LEE
VINING. THE DEBRIS FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND
OTHER LOOSE MATERIALS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS ALONG HIGHWAY 395.

&&

LAT...LON 3800 11905 3791 11910 3792 11921 3803 11917

$$

WEISHAHN
2 follow-up statements
538 
WGUS75 KREV 290119
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
619 PM PDT THU JUL 28 2016

CAC051-290300-
/O.CON.KREV.FF.W.0003.000000T0000Z-160729T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONO CA-
619 PM PDT THU JUL 28 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM PDT FOR
MONO COUNTY...

AT 616 PM PDT...THUNDERSTORMS AND SHOWERS ARE STILL MOVING OVER THE
MARINA FIRE BURN SCAR THIS EVENING. FLASH FLOODING AND DEBRIS FLOWS
COULD RESULT FROM EVEN LIGHT RAINFALL. RAINFALL ESTIMATES ARE
BETWEEN 0.10 TO 0.20 INCHES OVER THE PAST HOUR. 

EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN INCREASED RISK
FOR DEBRIS FLOWS MOVING ACROSS HIGHWAY 395. DEBRIS FLOWS CAN CONSIST
OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LEE VINING...LEE VINING CAMPGROUNDS...LEE VINING AIRPORT AND ASPEN
CAMPGROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND HIGHWAY 395 NEAR LEE VINING.

&&

LAT...LON 3800 11905 3791 11910 3792 11921 3803 11917

$$

EW
350 
WGUS75 KREV 290240
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
740 PM PDT THU JUL 28 2016

CAC051-290249-
/O.CAN.KREV.FF.W.0003.000000T0000Z-160729T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONO CA-
740 PM PDT THU JUL 28 2016

...THE FLASH FLOOD WARNING FOR MONO COUNTY IS CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY DIRECTION FROM LOCAL LAW
ENFORCEMENT.

LAT...LON 3800 11905 3791 11910 3792 11921 3803 11917

$$

EW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 2:43 PM PDTRed Flag WarningREVLassen, Modoc30 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.