Alert archive / Nevada / Flash Flood Warnings in 2012

Flash Flood Warning 6, NWS Elko, NV

August 13, 2012White Pine County, Nevada

NWS Elko, NV issued this flash flood warning at Aug 13, 2012, 2:52 PM PDT for White Pine 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
Aug 13, 2012, 2:52 PM PDT (21:52 UTC)
Expired
Aug 13, 2012, 5:45 PM PDT
In force
3 hr
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 21:56 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 12:00Z, 9.9 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 12:00Z on 2012-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 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 12:00Z on 2012-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
409 J/kg
Mixed-layer CIN
-226 J/kg
Mixed-layer LCL
1993 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-43 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.

446 
WGUS55 KLKN 132152
FFWLKN
NVC033-140045-
/O.NEW.KLKN.FF.W.0006.120813T2152Z-120814T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
252 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 545 PM PDT

* AT 244 PM PDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH   
FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. LAW ENFORCEMENT
REPORTED FLOOD WATERS AND DEBRIS FLOWING IN SEVERAL STREETS IN ELY...
INCLUDING LACKAWANNA DRIVE. 

LOCATIONS NEAR THE PATH OF INCLUDE...ELY AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF UP 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
2 follow-up statements
636 
WGUS75 KLKN 132233
FFSLKN

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

NVC033-140045-
/O.CON.KLKN.FF.W.0006.000000T0000Z-120814T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITE PINE NV-
333 PM PDT MON AUG 13 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM PDT FOR
CENTRAL WHITE PINE COUNTY...

AT 328 PM PDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A
THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED AREA.
FLOOD WATERS CONTINUE TO AFFECT SEVERAL STREETS IN ELY AND 
SURROUNDING AREAS. ADDITIONAL SHOWERS AND THUNDERSTORMS
WILL PRODUCE AREAS OF ADDITIONAL RAINFALL OVER THE NEXT 1 TO 2
HOURS. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RUTH...ELY 
AIRPORT AND ELY.

DO NOT DRIVE IN WATER OF UNKNOWN DEPTH. TURN AROUND...DON'T DROWN!

&&

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

$$

TURNER
507 
WGUS75 KLKN 140015
FFSLKN

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

NVC033-140045-
/O.CON.KLKN.FF.W.0006.000000T0000Z-120814T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITE PINE NV-
515 PM PDT MON AUG 13 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM PDT FOR
CENTRAL WHITE PINE COUNTY...

AT 506 PM PDT...AN AREA OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 
ABOUT 15 MPH ALONG THE US HIGHWAY 50 CORRIDOR...ABOUT 10 MILES 
NORTHWEST OF THE TOWN OF ELY. THE STORMS WILL BE CAPABLE OF 
DROPPING ONE-TENTH TO ONE-QUARTER INCH OF RAINFALL IN THE NEXT 20 TO 
30 MINUTES. THEREFORE...THE FLASH FLOOD WARNING WILL CONTINUE FOR 
THE AREA. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RUTH...ELY 
AIRPORT AND ELY.

&&

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 9:27 AM PDTFlash Flood WatchLKNEureka, Lander, Nye, White Pine11 hr
Aug 13, 12:49 PM PDTFlash Flood WarningLKNEureka3 hr
Aug 13, 1:04 PM PDTSpecial Weather StatementLKN26 min
Aug 13, 1:18 PM PDTSpecial Weather StatementLKN27 min
Aug 13, 1:31 PM PDTSpecial Weather StatementLKN29 min
Aug 13, 2:09 PM PDTAreal Flood AdvisoryLKNEureka4 min
Aug 13, 2:12 PM PDTAreal Flood AdvisoryLKNWhite Pine42 min
Aug 13, 3:02 PM PDTAreal Flood AdvisoryLKNNye97 min
Aug 13, 3:27 PM PDTFlash Flood WarningLKNElko4 hr
Aug 13, 3:54 PM PDTAreal Flood AdvisoryLKNElko3 hr

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.