Alert archive / Nevada / Flash Flood Warnings in 2015

Flash Flood Warning 2, NWS Elko, NV

July 4, 2015Humboldt County, Lander County, Nevada

NWS Elko, NV issued this flash flood warning at Jul 4, 2015, 2:10 PM PDT for Humboldt County, Lander 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 4, 2015, 2:10 PM PDT (21:10 UTC)
Expired: Jul 4, 2015, 5:15 PM PDT
In force: 3 hr
Issued by: NWS Elko, NV
Area: Storm-based polygon
Flood severity: None

Counties Humboldt County, NV, Lander County, NV

The radar

The Elko radar (KLRX), 30 km from the middle of the area, began a volume at 21:09 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, 9.2 hours before the alert went out and 146 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: 186 J/kg
Mixed-layer CIN: -252 J/kg
Mixed-layer LCL: 1795 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 95 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.

514 
WGUS55 KLKN 042110
FFWLKN
NVC013-015-050015-
/O.NEW.KLKN.FF.W.0002.150704T2110Z-150705T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
210 PM PDT SAT JUL 4 2015

THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN LANDER COUNTY IN NORTH CENTRAL NEVADA...
  SOUTHEASTERN HUMBOLDT COUNTY IN NORTHWESTERN NEVADA...

* UNTIL 515 PM PDT
    
* AT 210 PM PDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE INCH OF RAIN HAS
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PHOENIX MINE AND STATE ROUTE 305 JUST SOUTH OF BATTLE MOUNTAIN

ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN.
ARROYOS...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4060 11696 4033 11708 4052 11719 4065 11705

$$

RLC

1 follow-up statement

896 
WGUS75 KLKN 042235
FFSLKN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
335 PM PDT SAT JUL 4 2015

NVC013-015-042242-
/O.CAN.KLKN.FF.W.0002.000000T0000Z-150705T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LANDER NV-HUMBOLDT NV-
335 PM PDT SAT JUL 4 2015

...THE FLASH FLOOD WARNING FOR NORTHERN LANDER AND SOUTHEASTERN
HUMBOLDT COUNTIES IS CANCELLED...

HEAVY RAINS HAVE ENDED AND THE THREAT FOR FLASH FLOODING HAS ENDED. 
SOME MINOR FLOODING IS STILL POSSIBLE ALONG DIRT ROADS IN THE AREA. 
ADDITIONALLY SOME ARROYOS AND CREEKS MAY STILL HAVE FLOWING WATER SO 
BE CAREFUL IF NEAR THESE AREAS.

LAT...LON 4060 11696 4033 11708 4052 11719 4065 11705

$$

RLC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 12:41 PM PDT	Special Weather Statement	LKN	Eureka	49 min
Jul 4, 1:04 PM PDT	Special Weather Statement	LKN		56 min
Jul 4, 1:18 PM PDT	Areal Flood Advisory	LKN	Lander	3 hr
Jul 4, 1:51 PM PDT	Areal Flood Warning	LKN	Elko	3 hr
Jul 4, 1:56 PM PDT	Special Weather Statement	LKN		64 min

Nearby

Flash Flood Warnings in Nevada, 2015 Every flash flood warning in 2015

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.