Flash Flood Warning 1, NWS Elko, NV

000 
WGUS75 KLKN 232126
FFSLKN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
222 PM PDT SUN JUL 23 2006

NVC007-232215-
ELKO NV-
222 PM PDT SUN JUL 23 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM PDT FOR SOUTH
CENTRAL ELKO COUNTY...

AT 215 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
THUNDERSTORM THAT PRODUCED VERY HEAVY RAIN BETWEEN SOUTH FORK 
RESERVOIR AND THE PINYON RANGE TO THE WEST HAS DISSIPATED. HOWEVER 
RUNOFF FROM THE VERY HEAVY RAIN WILL STILL PRODUCE FLASH FLOODING IN 
THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE THE AREA BETWEEN SOUTH FORK 
RESERVOIR AND THE PINYON RANGE TO THE WEST.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 4047 11596 4046 11570 4072 11574 4072 11598

$$

CEC

000 
WGUS75 KLKN 232213
FFSLKN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
311 PM PDT SUN JUL 23 2006

NVC007-232221-
ELKO NV-
311 PM PDT SUN JUL 23 2006

...THE FLASH FLOOD WARNING WILL EXPIRE AT 315 PM PDT FOR SOUTH
CENTRAL ELKO COUNTY...

THE THUNDERSTORM THAT PRODUCED VERY HEAVY RAINFALL IN THE AREA 
BETWEEN SOUTH FORK RESERVOIR AND THE PINON MOUNTAIN RANGE DISSIPATED 
OVER AN HOUR AGO. RUNOFF FROM THIS STORM WILL HAVE SUBSIDED BY THIS 
TIME. THEREFORE THE FLASH FLOOD WARNING FOR THIS AREA WILL BE 
ALLOWED TO EXPIRE AT 315 PM.

LAT...LON 4047 11596 4046 11570 4072 11574 4072 11598

$$

CEC

AREA FORECAST DISCUSSION UPDATED
NATIONAL WEATHER SERVICE ELKO NV
941 AM PDT SUN JUL 23 2006

.SYNOPSIS...TODAY WILL SEE ABUNDANT THUNDERSTORM ACTIVITY MAINLY OVER
CENTRAL NEVADA. STORMS WILL SLOWLY TRACK TO THE NORTHWEST TO NORTH
THROUGH THE AFTERNOON. THUNDERSTORM DEVELOPMENT WILL CONTINUE
THROUGH MID WEEK AS MOISTURE REMAINS OVER THE SILVER STATE THROUGH
THURSDAY. THE END OF THE WEEK WILL SEE DRIER CONDITIONS. &&

.UPDATE...UPDATED ZONES TO INCLUDE LOCALLY HEAVY RAINFALL WORDING.
PW VALUES UP OVER 1.25 IN PARTS OF CWA AND 500 MB VORT FEATURES
PROGGED TO MOVE THROUGH NORTHERN ELKO COUNTY AND HUMBOLDT COUNTY
EARLY THIS EVENING. SAT AND RADAR IMAGERY SHOW SHOWERS ALREADY
DEVELOPING WESTERN CWA...WITH THUNDERSTORMS FIRING NEAR EUREKA
AND MONTELLO. RA &&

.PREV DISCUSSION...425 AM. SUNDAY THROUGH MONDAY...A HUDSON BAY LOW
WILL HELP TO MAINTAIN HIGH PRESSURE TO THE EAST OF THE CWA A SOUTH TO
SOUTHWESTERLY FLOW WILL CONTINUE TO BRING MONSOONAL MOISTURE TO THE
SILVER STATE. PW/S WILL CONTINUE TO FLUCTUATE NEAR 1 INCH FOR THE
NEXT COUPLE OF DAYS. THE WRF AND THE GFS VARY ON THE AMOUNT OF CAPE
OVER THE CWA. GFS IS MUCH LOWER WITH VALUES OVER ELKO OF NEAR 300
J/KG AND THE WRF WITH NEAR 3000 J/KG WHICH IS NOT REALISTIC. HOWEVER
BOTH MODELS PUT THE MOST ACTIVITY IN THE SOUTHERN CWA WITH MODERATE
ACTIVITY OVER ELKO COUNTY AND ONLY SOME OVER HUMBOLDT COUNTY. WITH A
WEAK FLOW ALOFT THE STORMS THAT DEVELOP COULD POTENTIALLY CAUSE SOME
MINOR FLOOD AND SOME MUD SLIDES IN AREAS OF STEEP TOPOGRAPHY. 850MB
CONVERGENCE...LI/S OF DOWN TO -2 OVER NORTHERN NYE COUNTY...700MB
OMEGA VALUES...AND PVA ARE ALL IN ALIGNMENT FOR THUNDERSTORM
DEVELOPMENT BEGINNING MID MORNING SUNDAY. THERE ARE INDICATIONS OF A
SUCKER HOLE OVER THE CENTRAL AND NORTHEASTERN PORTION OF ELKO COUNTY
TODAY. WATER VAPOR ALSO SHOWING HINTS OF A MINOR DRY SLOT ROTATING
INTO THE DIRTY HIGH. HAVE BROAD-BRUSHED THESE AREAS FOR POPS.

MONDAY WILL SEE A REDUCTION IN ACTIVITY AS THE HIGH WEAKENS AND THE
RIDGE FLATTENS.  HOWEVER PLENTY OF MOISTURE WILL STILL BE AVAILABLE
TO COMBINE WITH DAYTIME HEATING TO GIVE THE GREAT BASIN ANOTHER
ROUND OF STORMS. IPPI

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. RIDGE OF HIGH PRESSURE
REMAINS CENTERED ROUGHLY OVER FOUR CORNERS REGION TO START THE
PERIOD. THROUGHOUT THE LONG TERM MOIST UNSTABLE AIR LINGERS ACROSS
CENTRAL NEVADA FOR THE CONTINUED RISK OF SHOWERS AND THUNDERSTORMS.
AS FOR NORTHERN NEVADA...A JET FEATURE IS PROGGED TO PASS THROUGH
SOUTHERN IDAHO ON TUESDAY FOR A LITTLE EXTRA INSTABILITY INTO
HUMBOLDT AND ELKO COUNTIES. MOISTURE AND INSTABILITY HANG ON OVER
ELKO COUNTY ON WEDNESDAY BEFORE DRIER AND SLIGHTLY MORE STABLE AIR
MOVES INTO NORTHERN CWA THURSDAY. A STRONGER JET MOVES ACROSS IDAHO
FRIDAY INTO SATURDAY FOR A RETURN OF MOISTURE AND INSTABILITY OVER
NORTHERN NEVADA. ROOD
&&

.AVIATION...SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGHOUT ALL
TWEB ROUTES TODAY...WITH THE MOST ACTIVE AREA BETWEEN ELY AND LAS
VEGAS AS VERY MOIST UNSTABLE AIR MOVES IN FROM THE EAST.  &&

.LKN WATCHES/WARNINGS/ADVISORIES...NONE.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ELKO NV
455 AM PDT SUN JUL 23 2006

NVZ013-030>037-240000-
EXTREME EASTERN ELKO COUNTY-HUMBOLDT COUNTY-NORTHERN ELKO COUNTY-
NORTHERN LANDER AND NORTHERN EUREKA COUNTIES-NORTHERN NYE COUNTY-
RUBY MOUNTAINS/EAST HUMBOLDT RANGE-
SOUTHERN LANDER AND SOUTHERN EUREKA COUNTIES-
SOUTHWEST AND SOUTH CENTRAL ELKO COUNTY-WHITE PINE COUNTY-
455 AM PDT SUN JUL 23 2006

DAY ONE...TODAY.

SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN TODAY WITH CENTRAL
NEVADA SEE THE MOST ACTIVITY. SOME OF THE STORMS MAY BE STRONG.
ALSO LOCALLY HEAVY DOWNPOURS ARE POSSIBLE AS WELL AS GUSTY WINDS AND
FREQUENT LIGHTNING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGH THE END OF
THE WEEK WHEN A DRYING TREND IS EXPECTED. THE MAIN ACTIVITY WILL BE
IN CENTRAL AND NORTHEASTERN NEVADA.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ASKED TO REPORT SIGNIFICANT WEATHER CONDITIONS
ACCORDING TO STANDARD OPERATING PROCEDURES.

IPPI