Alert archive / Nevada / Flash Flood Warnings in 2005

Flash Flood Warning 8, NWS Reno, NV

December 31, 2005

NWS Reno, NV issued this flash flood warning at Dec 31, 2005, 7:55 AM PST. It was in force for 4 hr. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Dec 31, 2005, 7:55 AM PST (15:55 UTC)
Expired: Dec 31, 2005, 12:00 PM PST
In force: 4 hr
Issued by: NWS Reno, NV
Area: Counties, with a storm outline in the text

The radar

The Reno radar (KRGX), 75 km from the middle of the area, began a volume at 15:57 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.

What was reported inside it

Time	Report	Where	Remark
Dec 31, 8:09 AM PST	HEAVY RAIN 2.25	N Carson City, NV	24 HOUR TOTAL.
Dec 31, 8:19 AM PST	HEAVY RAIN 3.3	1 N Carson City, NV	PRECIPITATION AMOUNT SINCE 100 PM FRIDAY 12/30/05.
Dec 31, 9:30 AM PST	FLOOD	Carson City, NV	WATER COVERING HIGHWAY 395 THROUGH CARSON CITY
Dec 31, 9:52 AM PST	HEAVY RAIN 4.2	1 N Carson City, NV	TOTAL SINCE 1PM YESTERDAY.
Dec 31, 11:15 AM PST	FLASH FLOOD	Carson City, NV	LOCAL MEDIA REPORTING DEBRIS FLOWS ARE COMING OUT OF THE WATERFALL BURN AREA AND INTO THE WESTERN PORTION OF CARSON CITY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 3.9 hours before the alert went out and 148 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 231 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 311553
FFWREV
NVC510-312000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
755 AM PST SAT DEC 31 2005

THE NATIONAL WEATHER SERVICE IN RENO HAS CONTINUED THE FLASH FLOOD 
WARNING FOR CARSON CITY 

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

* UNTIL 1200 PM PST

* AT 745 AM PST...HEAVY RAIN WAS CONTINUING OVER THE WATERFALL BURN 
  AREA.

* HEAVY RAIN WILL CONTINUE THROUGH 12 PM TODAY.

SURFACE OBSERVATIONS IN THE WATERFALL BURN AREA ARE REPORTING 
BETWEEN 3 AND 5 INCHES OF RAIN HAVE FELL IN THE LAST 24 HOURS.  ASH 
CANYON CREEK...KINGS CANYON...AND VICEE CANYON CREEK ARE OUT OF 
THEIR BANKS.  MUD...ROCK AND DEBRIS FLOWS ARE STILL POSSIBLE ON THE 
SLOPES WEST OF CARSON CITY.  AN ADDITIONAL 1 TO 2 INCHES OF RAIN IS 
POSSIBLE THROUGH 12 PM...BEFORE SNOW LEVELS FALL TO 6000 FEET. 

STAY AWAY FROM ASH...VICEE AND KINGS CANYONS AS THESE AREAS ARE MOST
PRONE TO FLASH FLOODING. DUE TO THE DESTRUCTIVE NATURE OF THE
WATERFALL FIRE...FLASH FLOODING MAY BRING A RIVER OF MUD...ASH...
BOULDERS AND BURNED TREES DOWN THE CANYONS AND INTO WESTERN CARSON
CITY. IF YOU ARE IN A LOW LYING AREA OF WESTERN CARSON CITY...SEEK
HIGHER GROUND IMMEDIATELY.

LAT...LON 3912 11993 3910 11965 3923 11970 3915 11993

$$

BRONG

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 30, 4:55 PM PST	Flash Flood Warning	REV		15 hr
Dec 31, 9:21 AM PST	Snow Advisory	REV	Douglas, Lyon, Storey, Washoe	7 hr
Dec 31, 11:40 AM PST	Flash Flood Warning	REV		4 hr
Dec 31, 12:34 PM PST	High Wind Warning	REV	Churchill, Douglas, Lyon, Mineral, Pershing, Storey and 1 more	5 hr

Nearby

Flash Flood Warnings in Nevada, 2005 Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.