Alert archive / Nevada / Flash Flood Warnings in 2015

Flash Flood Warning 3, NWS Reno, NV

June 30, 2015Storey County, Washoe County, Nevada

NWS Reno, NV issued this flash flood warning at Jun 30, 2015, 6:39 PM PDT for Storey County, Washoe County, Nevada. It was in force for 111 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
Jun 30, 2015, 6:39 PM PDT (01:39 UTC)
Expired
Jun 30, 2015, 8:30 PM PDT
In force
111 min
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
None

Counties Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 28 km from the middle of the area, began a volume at 01:40 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 00:00Z, 1.7 hours before the alert went out and 125 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, Reno, NV at 00:00Z on 2015-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 102 joules per kilogram.LCLEL10008507005003002001001 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, Reno, NV at 00:00Z on 2015-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 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
102 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
3368 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-6 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.

925 
WGUS55 KREV 010139
FFWREV
NVC029-031-010330-
/O.NEW.KREV.FF.W.0003.150701T0139Z-150701T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
639 PM PDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN WASHOE COUNTY IN WESTERN NEVADA...
  STOREY COUNTY IN WESTERN NEVADA...

* UNTIL 830 PM PDT
    
* AT 637 PM PDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS OCCURRING OR
  EXPECTED TO BEGIN SHORTLY.

* VERY HEAVY RAIN IS FALLING ALONG AND JUST NORTH OF INTERSTATE 80 
  BETWEEN VISTA AND LOCKWOOD. THE STEEP TERRAIN IN THIS AREA WILL 
  PROMOTE RAPID RUN OFF AND POSSIBLE FLOODING OF LOW LYING AREAS 
  ALONG THE INTERSTATE...ESPECIALLY THE WEST BOUND LANES. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SPARKS AND MUSTANG. 

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. A FEW INCHES OF FAST FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD.

&&

LAT...LON 3957 11962 3951 11963 3952 11969 3957 11971

$$
2 follow-up statements
815 
WGUS75 KREV 010212
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
712 PM PDT TUE JUN 30 2015

NVC029-031-010330-
/O.CON.KREV.FF.W.0003.000000T0000Z-150701T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHOE NV-STOREY NV-
712 PM PDT TUE JUN 30 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM PDT FOR
SOUTHERN WASHOE AND STOREY COUNTIES...

AT 708 PM PDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
EAST SPARKS NEAR BARING BOULEVARD AND SHADY OAK DRIVE. ADDITIONAL 
PUBLIC REPORTS HAVE BEEN RECEIVED OF FLOODING ALONG VISTA BOULEVARD 
FROM GREG STREET TO BARING BOULEVARD. 
 
ADDITIONAL HEAVY RAIN IS OCCURRING AND MAY ENHANCE FLOODING ON THE 
EAST SIDE OF SPARKS. FLOODING IS ALSO POSSIBLE ON INTERSTATE 80 FROM 
VISTA TO LOCKWOOD.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
SPARKS AND MUSTANG. 

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. A FEW INCHES OF FAST FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD.

&&

LAT...LON 3957 11962 3951 11963 3952 11969 3957 11971

$$
474 
WGUS75 KREV 010328
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
828 PM PDT TUE JUN 30 2015

NVC029-031-010336-
/O.EXP.KREV.FF.W.0003.000000T0000Z-150701T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHOE NV-STOREY NV-
828 PM PDT TUE JUN 30 2015

...THE FLASH FLOOD WARNING FOR SOUTHERN WASHOE AND STOREY COUNTIES
WILL EXPIRE AT 830 PM PDT...

THE HEAVY RAIN HAS ENDED. RESIDUAL FLOODING IN EAST SPARKS FROM 
EARLIER HEAVY RAIN MAY PERSIST FOR ANOTHER COUPLE OF HOURS...BUT THE 
FLOOD WATERS WILL GRADUALLY RECEDE. SOME ROAD SURFACES MAY BE 
DAMAGED AND DIFFICULT TO SEE AS NIGHT FALLS.

LAT...LON 3957 11962 3951 11963 3952 11969 3957 11971

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 5:23 PM PDTSpecial Weather StatementREVLyon22 min
Jun 30, 6:07 PM PDTSpecial Weather StatementREVStorey38 min
Jun 30, 6:25 PM PDTSpecial Weather StatementREVStorey50 min
Jun 30, 6:29 PM PDTSpecial Weather StatementREVDouglas46 min
Jun 30, 7:16 PM PDTSpecial Weather StatementREVStorey59 min
Jun 30, 7:28 PM PDTFlash Flood WarningREVLyon, Storey3 hr
Jun 30, 7:35 PM PDTAreal Flood AdvisoryREVWashoe3 hr
Jun 30, 8:02 PM PDTSpecial Weather StatementREVStorey43 min
Jun 30, 8:22 PM PDTSpecial Weather StatementREV23 min
Jul 1, 4:55 PM PDTSpecial Weather StatementREV50 min
Jul 1, 4:59 PM PDTSpecial Weather StatementREVChurchill61 min

Nearby

Flash Flood Warnings in Nevada, 2015Every 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.