Alert archive / California / Flash Flood Warnings in 2014

Flash Flood Warning 3, NWS Reno, NV

July 14, 2014Mono County, California

NWS Reno, NV issued this flash flood warning at Jul 14, 2014, 4:01 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 14, 2014, 4:01 PM PDT (23:01 UTC)
Expired: Jul 14, 2014, 7:00 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 Reno radar (KRGX), 164 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 179 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3350 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 57 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.

176 
WGUS55 KREV 142301
FFWREV
CAC051-150200-
/O.NEW.KREV.FF.W.0003.140714T2301Z-140715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
401 PM PDT MON JUL 14 2014

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN MONO COUNTY IN CENTRAL CALIFORNIA...

* UNTIL 700 PM PDT

* AT 354 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. THIS STORM
  IS PRODUCING HEAVY RAINFALL OF 1 INCH OR MORE IN 30 MINUTES   
  AND WILL MOVE THROUGH AN AREA THAT HAS ALREADY RECEIVED EXCESS     
  RAINFALL. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DEVILS GATE
  SUMMIT...HIGHWAY 395 FROM SONORA JUNCTION TO BRIDGEPORT...AND      
  SONORA JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. PEOPLE
IN FLOOD PRONE AND LOW LYING AREAS SHOULD MOVE TO HIGHER GROUND. DO
NOT ATTEMPT TO CROSS SWIFT FLOWING WATER BY FOOT OR AUTOMOBILE.

&&

LAT...LON 3826 11959 3838 11943 3830 11922 3818 11933

$$

BOYD

1 follow-up statement

195 
WGUS75 KREV 150016
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
516 PM PDT MON JUL 14 2014

CAC051-150026-
/O.CAN.KREV.FF.W.0003.000000T0000Z-140715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONO CA-
516 PM PDT MON JUL 14 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN MONO
COUNTY...

THE THREAT FOR CONTINUED FLASH FLOODING HAS DIMINISHED. REMEMBER THAT
MINOR FLOODING OR RUNOFF MAY CONTINUE IN LOW SPOTS FOR SEVERAL HOURS.

LAT...LON 3826 11959 3838 11943 3830 11922 3818 11933

$$

BOYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 12:52 PM PDT	Flash Flood Watch	REV	Alpine, El Dorado, Mono, Nevada, Placer	47 hr
Jul 14, 1:33 PM PDT	Special Weather Statement	REV	Alpine	57 min
Jul 14, 2:09 PM PDT	Special Weather Statement	REV	Mono	51 min
Jul 14, 3:02 PM PDT	Severe Thunderstorm Warning	REV	Mono	43 min
Jul 14, 3:27 PM PDT	Severe Thunderstorm Warning	REV	Mono	33 min
Jul 14, 4:54 PM PDT	Special Weather Statement	REV	Mono	51 min

Nearby

Flash Flood Warnings in California, 2014 Every flash flood warning in 2014

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.