Alert archive / Nevada / Flash Flood Warnings in 2014

Flash Flood Warning 13, NWS Elko, NV

July 31, 2014Elko County, Nevada

NWS Elko, NV issued this flash flood warning at Jul 31, 2014, 6:08 PM PDT for Elko County, Nevada. 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 31, 2014, 6:08 PM PDT (01:08 UTC)
Expired: Jul 31, 2014, 9:00 PM PDT
In force: 3 hr
Issued by: NWS Elko, NV
Area: Storm-based polygon
Flood severity: None

County Elko County, NV

The radar

The Elko radar (KLRX), 58 km from the middle of the area, began a volume at 01:10 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

Elko, NV (KLKN), launched 00:00Z, 1.1 hours before the alert went out and 190 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: 1 J/kg
Mixed-layer CIN: -224 J/kg
Mixed-layer LCL: 1669 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 55 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.

471 
WGUS55 KLKN 010108
FFWLKN
NVC007-010400-
/O.NEW.KLKN.FF.W.0013.140801T0108Z-140801T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
608 PM PDT THU JUL 31 2014

THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL ELKO COUNTY IN NORTHEAST NEVADA...

* UNTIL 900 PM PDT

* AT 606 PM PDT...FLASH FLOODING IS LIKELY OCCURRING FROM A 
THUNDERSTORM NEAR MIDAS MINE...OR 8 MILES EAST OF MIDAS...MOVING 
SOUTHEAST AT 15 MPH.

LOCATIONS NEAR THE PATH OF INCLUDE...WILLOW CREEK RESERVOIR AND THE 
MIDAS...TUSCARORA ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL 
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. IF YOU COME TO A FLOODED OR 
CLOSED ROAD...TURN AROUND...DONT DROWN.

&&

LAT...LON 4133 11664 4115 11559 4101 11613 4102 11670
      4121 11684

$$

BB

1 follow-up statement

809 
WGUS75 KLKN 010353
FFSLKN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
853 PM PDT THU JUL 31 2014

NVC007-010402-
/O.EXP.KLKN.FF.W.0013.000000T0000Z-140801T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ELKO NV-
853 PM PDT THU JUL 31 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM PDT FOR WEST CENTRAL
ELKO COUNTY...

THE FLASH FLOOD WARNING FOR MIDAS AND POINTS EAST WILL EXPIRE. 
FURTHER SHOWERS AND A STRAY THUNDERSTORM MAY STILL OCCUR. BE VERY 
CAREFUL IN LOW SPOTS AND KNOWN FLOOD PRONE AREAS...ESPECIALLY IN THE 
DARK. REMEMBER...IF YOU COME TO A FLOODED OR CLOSED ROAD...TURN 
AROUND. DON'T DROWN.

&&

LAT...LON 4133 11664 4115 11559 4101 11613 4102 11670
      4121 11684

$$

BB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 5:29 PM PDT	Special Weather Statement	LKN		46 min
Jul 31, 5:30 PM PDT	Areal Flood Advisory	LKN	White Pine	3 hr
Jul 31, 5:44 PM PDT	Special Weather Statement	LKN		46 min
Jul 31, 5:47 PM PDT	Special Weather Statement	LKN		58 min
Jul 31, 6:16 PM PDT	Flash Flood Warning	LKN	Elko	119 min
Jul 31, 7:02 PM PDT	Areal Flood Advisory	LKN	Humboldt	3 hr
Jul 31, 7:16 PM PDT	Areal Flood Advisory	LKN	Eureka, Lander	3 hr
Jul 31, 7:54 PM PDT	Areal Flood Advisory	LKN	Humboldt	3 hr
Jul 31, 10:12 PM PDT	Areal Flood Advisory	LKN	Humboldt	3 hr
Jul 31, 10:39 PM PDT	Special Weather Statement	LKN		21 min
Jul 31, 10:40 PM PDT	Special Weather Statement	LKN		20 min
Aug 1, 2:00 PM PDT	Flash Flood Watch	LKN	Eureka, Lander, Nye, White Pine	54 hr
Aug 1, 3:33 PM PDT	Areal Flood Advisory	LKN	Nye	3 hr
Aug 1, 3:35 PM PDT	Special Weather Statement	LKN		25 min
Aug 1, 3:37 PM PDT	Special Weather Statement	LKN		23 min
Aug 1, 3:55 PM PDT	Special Weather Statement	LKN	Nye	35 min
Aug 1, 3:58 PM PDT	Special Weather Statement	LKN		32 min
Aug 1, 4:01 PM PDT	Areal Flood Advisory	LKN	Humboldt	3 hr
Aug 1, 4:11 PM PDT	Areal Flood Advisory	LKN	Lander, Nye	3 hr
Aug 1, 4:45 PM PDT	Special Weather Statement	LKN	Nye	30 min

Nearby

Flash Flood Warnings in Nevada, 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.