Alert archive / Nevada / Flash Flood Warnings in 2014

Flash Flood Warning 7, NWS Reno, NV

July 16, 2014Storey County, Washoe County, Nevada

NWS Reno, NV issued this flash flood warning at Jul 16, 2014, 6:57 PM PDT for Storey County, Washoe 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 16, 2014, 6:57 PM PDT (01:57 UTC)
Expired: Jul 16, 2014, 10:00 PM PDT
In force: 3 hr
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), 50 km from the middle of the area, began a volume at 01:59 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, 2.0 hours before the alert went out and 128 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: -128 J/kg
Mixed-layer LCL: 3371 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -39 m²/s²
0-3 km storm-relative helicity: -29 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.

055 
WGUS55 KREV 170157
FFWREV
NVC029-031-170500-
/O.NEW.KREV.FF.W.0007.140717T0157Z-140717T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
657 PM PDT WED JUL 16 2014

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN STOREY COUNTY IN WESTERN NEVADA...
  THIS INCLUDES THE CITY OF VIRGINIA CITY...
  EXTREME SOUTH CENTRAL WASHOE COUNTY IN WESTERN NEVADA...

* UNTIL 1000 PM PDT

* AT 649 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. THIS STORM
  IS PRODUCING TORRENTIAL RAINFALL OF ONE INCH OR MORE AN HOUR.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NV 341     
  AT WASHOE-STOREY CO LINE. MAIN AREA OF RAINFALL IS IN THE VIRGINIA 
  CITY HIGHLANDS...TOLL ROAD...AND GEIGER GRADE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. PEOPLE
IN FLOOD PRONE AND LOW LYING AREAS SHOULD MOVE TO HIGHER GROUND. DO
NOT ATTEMPT TO CROSS SWIFT FLOWING WATER BY FOOT OR AUTOMOBILE.

&&

LAT...LON 3941 11973 3942 11957 3930 11956 3927 11964
      3926 11968 3926 11974

$$

TOLBY

2 follow-up statements

058 
WGUS75 KREV 170323
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
823 PM PDT WED JUL 16 2014

NVC029-031-170500-
/O.CON.KREV.FF.W.0007.000000T0000Z-140717T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STOREY NV-WASHOE NV-
823 PM PDT WED JUL 16 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM PDT FOR
EXTREME SOUTH CENTRAL WASHOE AND SOUTHWESTERN STOREY COUNTIES...

AT 819 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NV 341 AT 
WASHOE-STOREY CO LINE...GEIGER GRADE...TOLL ROAD...NEWTON CREEK AND 
BAILEY CANYON...VIRGINIA CITY HIGHLANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. PEOPLE
IN FLOOD PRONE AND LOW LYING AREAS SHOULD MOVE TO HIGHER GROUND. DO
NOT ATTEMPT TO CROSS SWIFT WATERS BY FOOT OR AUTOMOBILE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS RANCHLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 3941 11973 3942 11957 3930 11956 3927 11964
      3926 11968 3926 11974

$$

HOON

256 
WGUS75 KREV 170358 RRA
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
858 PM PDT WED JUL 16 2014

NVC029-031-170409-
/O.CAN.KREV.FF.W.0007.000000T0000Z-140717T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STOREY NV-WASHOE NV-
858 PM PDT WED JUL 16 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EXTREME SOUTH
CENTRAL WASHOE AND SOUTHWESTERN STOREY COUNTIES...

LAT...LON 3941 11973 3942 11957 3930 11956 3927 11964
      3926 11968 3926 11974

$$

SNYDER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 5:40 PM PDT	Special Weather Statement	REV	Churchill	80 min
Jul 16, 6:10 PM PDT	Special Weather Statement	REV		35 min
Jul 16, 6:31 PM PDT	Flash Flood Warning	REV	Douglas	3 hr
Jul 16, 8:07 PM PDT	Areal Flood Advisory	REV	Washoe	3 hr
Jul 17, 12:26 PM PDT	Special Weather Statement	REV	Lyon	49 min
Jul 17, 1:12 PM PDT	Flash Flood Warning	REV	Douglas, Lyon	3 hr
Jul 17, 2:45 PM PDT	Special Weather Statement	REV		60 min
Jul 17, 3:17 PM PDT	Severe Thunderstorm Warning	REV	Douglas, Washoe	43 min
Jul 17, 4:04 PM PDT	Special Weather Statement	REV		86 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.