Alert archive / Nevada / Flash Flood Warnings in 2004

Flash Flood Warning 13, NWS Reno, NV

August 15, 2004

NWS Reno, NV issued this flash flood warning at Aug 15, 2004, 5:03 PM PDT. It was in force for 87 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 15, 2004, 5:03 PM PDT (00:03 UTC)
Expired
Aug 15, 2004, 6:30 PM PDT
In force
87 min
Issued by
NWS Reno, NV
Area
Counties, with a storm outline in the text

The radar

The Reno radar (KRGX), 74 km from the middle of the area, began a volume at 00:05 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, 0.1 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-pSkew-T log-p diagram, Reno, NV at 00:00Z on 2004-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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, Reno, NV at 00:00Z on 2004-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 square meters per square second.193958Sfc1 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
19 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
2159 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
-55 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.

000 
WGUS55 KREV 160007
FFWREV
NVC510-160130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
503 PM PDT SUN AUG 15 2004

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CARSON CITY IN WESTERN NEVADA
  THIS INCLUDES THE CITY OF CARSON CITY

* UNTIL 630 PM PDT

* AT 500 PM PDT...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM
  OVER THE WATERFALL BURN AREA AND CARSON CITY.

* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF THE INDICATED COUNTY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING. FLASH FLOODING MAY BRING A RIVER
OF MUD...ROCKS...BURNED TREES AND ASH INTO WESTERN CARSON CITY. PEOPLE 
ARE URGED TO STAY AWAY FROM VICEE...ASH AND KINGS CANYONS. IF YOU ARE IN 
WESTERN CARSON CITY OR NEAR THESE CANYONS SEEK HIGHER GROUND IMMEDIATELY. 

FLOODING IS OCCURRING OR IS IMMINENT.  NEVER TRY TO CROSS A FLOWING 
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO 
HIGHER
GROUND.

LAT...LON 3912 11978 3919 11978 3920 11983 3912 11989

$$

RM
1 follow-up statement
000 
WGUS75 KREV 160130
FFSREV
NVC510-160130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
625 PM PDT SUN AUG 15 2004

...THE FLASH FLOOD WARNING FOR CENTRAL CARSON CITY COUNTY WILL BE 
ALLOWED TO EXPIRE AT 630 PM PDT...

AT 625 PM PDT...THE THUNDERSTORM PRODUCING FLASH FLOODING IN THE 
WATERFALL BURN AREA AND DOWNSTREAM INTO CARSON CITY HAS WEAKENED. 
LIGHT TO OCCASIONAL MODERATE RAIN SHOWERS ARE STILL LIKELY IN THE 
AREA FOR THE NEXT ONE TO TWO HOURS. LOCALIZED FLOODING AND MUDSLIDES 
HAVE BEEN REPORTED ACROSS PORTIONS OF CARSON CITY ASSOCIATED WITH 
THIS STORM. FLOODING CONDITIONS MAY STILL BE IMMINENT IF ADDITIONAL 
SHOWERS OR THUNDERSTORMS DEVELOP OVER THIS SAME AREA. MOTORISTS AND 
PERSONS IN THESE AREAS SHOULD CONTINUE TO MONITOR THE WEATHER FOR 
POSSIBLE RAPIDLY CHANGING CONDITIONS.

LAT...LON 3912 11978 3919 11978 3920 11983 3912 11989

$$

BENINATO

Nearby

Flash Flood Warnings in Nevada, 2004Every flash flood warning in 2004

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.