Alert archive / Nevada / Flash Flood Warnings in 2012

Flash Flood Warning 8, NWS Elko, NV

August 13, 2012White Pine County, Nevada

NWS Elko, NV issued this flash flood warning at Aug 13, 2012, 5:44 PM PDT for White Pine County, Nevada. It was in force for 61 min. 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 13, 2012, 5:44 PM PDT (00:44 UTC)
Expired
Aug 13, 2012, 6:45 PM PDT
In force
61 min
Issued by
NWS Elko, NV
Area
Storm-based polygon
Flood severity
None

County White Pine County, NV

The radar

The Elko radar (KLRX), 235 km from the middle of the area, began a volume at 00:45 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, 0.7 hours before the alert went out and 187 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, Elko, NV at 00:00Z on 2012-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 443 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 00:00Z on 2012-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
443 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
2827 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

975 
WGUS55 KLKN 140044
FFWLKN
NVC033-140145-
/O.NEW.KLKN.FF.W.0008.120814T0044Z-120814T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
544 PM PDT MON AUG 13 2012

THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL WHITE PINE COUNTY IN EASTERN NEVADA...
  THIS INCLUDES THE CITIES OF...RUTH...ELY AIRPORT...ELY...

* UNTIL 645 PM PDT

* AT 536 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ADDITIONAL THUNDERSTORMS PRODUCING HEAVY RAIN APPROACHING ELY IN 
CENTRAL WHITE PINE COUNTY. FLOOD WATERS FROM PREVIOUS THUNDERSTORMS
HAVE RECEDED...BUT WITH SATURATED GROUND ADDITIONAL RAINFALL
WILL QUICKLY CAUSE ADDITIONAL RUNOFF. STORMS WILL ALSO PRODUCE
FREQUENT CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS
THEY MOVE SOUTHEAST AT 20 MPH.

LOCATIONS WITH THE POTENTIAL FOR FLOODING INCLUDE...ELY...ELY 
AIRPORT AND RUTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ELKO.

&&

LAT...LON 3933 11465 3909 11474 3915 11512 3940 11504

$$

TURNER
1 follow-up statement
221 
WGUS75 KLKN 140140
FFSLKN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
640 PM PDT MON AUG 13 2012

NVC033-140147-
/O.EXP.KLKN.FF.W.0008.000000T0000Z-120814T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITE PINE NV-
640 PM PDT MON AUG 13 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 645 PM PDT FOR CENTRAL
WHITE PINE COUNTY...

THUNDERSTORMS THAT PRODUCED HEAVY RAINFALL AND FLASH FLOODING IN THE 
ELY AREA HAVE MOVED OUT OF THE AREA AND NO FURTHER HEAVY RAINFALL IS 
EXPECTED THIS EVENING. THEREFORE THE FLASH FLOOD WARNING WILL BE 
ALLOWED TO EXPIRE AT 645 PM.

&&

LAT...LON 3933 11465 3909 11474 3915 11512 3940 11504

$$

91

Nearby

Flash Flood Warnings in Nevada, 2012Every flash flood warning in 2012

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.