Severe Thunderstorm Warning 6, NWS Elko, NV

000 
WWUS55 KLKN 302244
SVSLKN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
344 PM PDT THU AUG 30 2007

NVC007-302300-
/O.CON.KLKN.SV.W.0006.000000T0000Z-070830T2300Z/
ELKO NV-
344 PM PDT THU AUG 30 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM PDT
FOR CENTRAL ELKO COUNTY...

AT 342 PM PDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 16 MILES
SOUTHWEST OF GIBBS RANCH TO 11 MILES EAST OF WELLS...OR ALONG A LINE
EXTENDING FROM 16 MILES SOUTHWEST OF GIBBS RANCH TO 10 MILES WEST OF
PEQUOP SUMMIT...MOVING NORTHEAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  GIBBS RANCH BY 355 PM PDT...

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

LAT...LON 4160 11518 4129 11432 4099 11499 4129 11572
TIME...MOT...LOC 2244Z 234DEG 41KT 4140 11540 4114 11472

$$

JMG

000 
WWUS55 KLKN 302259
SVSLKN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
358 PM PDT THU AUG 30 2007

NVC007-302308-
/O.EXP.KLKN.SV.W.0006.000000T0000Z-070830T2300Z/
ELKO NV-
358 PM PDT THU AUG 30 2007

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ELKO COUNTY EXPIRES AT
400 PM PDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING FOR CENTRAL ELKO COUNTY 
HAS WEAKENED AND IS NO LONGER SEVERE.  WIND GUSTS TO 50 MPH AND 
VISIBILITIES REDUCED TO UNDER A MILE ARE STILL POSSIBLE AS THE STORM 
MOVES INTO NORTHEAST ELKO COUNTY.

LAT...LON 4160 11518 4129 11432 4099 11499 4129 11572
TIME...MOT...LOC 2258Z 234DEG 41KT 4149 11522 4123 11455

$$

JMG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
233 PM PDT THU AUG 30 2007

.SYNOPSIS...THE THREAT OF AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS WILL CONTINUE ACROSS ALL OF NORTHERN AND CENTRAL NEVADA
THROUGH FRIDAY EVENING. A DRYING TREND WILL BEGIN SATURDAY...WHICH
WILL GRADUALLY MOVE THE THUNDERSTORM ACTIVITY OFF TO THE EAST. &&

.SHORT TERM...CONVECTIVE ACTIVITY IS EXPECTED TO CONTINUE THROUGH
EARLY THIS EVENING AS A 55-60KT H3 JET PASSING OVER CENTRAL AND
NORTHERN NEVADA BRINGS INSTABILITY TO THE REGION. THE COMBINATION OF
THE RIGHT REAR QUAD OF THIS JET BEING CENTERED OVER THE SE CORNER OF
ELKO COUNTY AT 06Z THIS EVENING...AND A STRONG VORT MAX POSITIONED
OVER WHITE PINE COUNTY AT THE SAME TIME...MAY HELP KEEP THUNDERSTORM
ACTIVITY GOING BEYOND SUNSET OVER EASTERN NEVADA. MOISTURE AND
INSTABILITY COMBINE ONCE AGAIN ON FRIDAY FOR THE CONTINUED THREAT OF
SHOWERS AND THUNDERSTORMS. HAVE INCREASED POPS OVER MUCH OF NEVADA
FOR FRIDAY...ESPECIALLY OVER HUMBOLDT COUNTY...AS LATEST MODEL RUNS
SHOW SIGNIFICANTLY HIGHER AMOUNTS OF MOISTURE AND INSTABILITY. ROOD

.LONG TERM...SATURDAY NIGHT THROUGH NEXT THURSDAY...MODELS IN DECENT
AGREEMENT THROUGH THE WEEKEND BUT THEN DIVERGE BY EARLY NEXT WEEK.
H5 HIGH PRESSURE WILL DOMINATE THE SWRN CONUS UNTIL TUES BUT WITH
RELATIVELY WEAK SWRLY WINDS ALOFT...MIDLEVEL MOISTURE IS FORECAST TO
LINGER OVER THE ENTIRE AREA INTO SAT EVENING AND RESULT IN ISOLATED
TO WIDELY SCT SHOWERS AND THUNDERSTORMS. AS AN UPPER LEVEL TROUGH
DIGS TOWARD THE PACIFIC NW COAST ON SUN AFTERNOON...THE INSTABILITY
AND MOISTURE PUSHES TO EAST ...WITH CONVECTIVE ACTIVITY OCCURRING
MAINLY ACROSS NE AND EAST CNTRL NV ON SUN-MON AFTERNOONS AND THEN
ERN WHITE PINE COUNTY ON TUES AFTERNOON. DAYTIME TEMPS ARE EXPECTED
TO REMAIN 5-12 DEGREES ABOVE NORMAL THROUGH TUES IN MOST LOCATIONS.
HOWEVER...BY TUES MODELS INDICATE H5 RIDGE WILL WEAKEN AND ALLOW
UPPER LEVEL FLOW TO VEER TO THE W-NW AND BRING DRIER...COOLER AIR
INTO THE GREAT BASIN REGION. AS THE RIDGE WEAKENS...12Z OPERATIONAL
GFS SHOWS SIGNS OF THE FIRST COLD FRONT OF THE SEASON PUSHING INTO
NWRN NV ON TUES AM AND THEN ADVANCING THROUGH CENTRAL NV ON WED.
ATTM CAN EXPECT SYSTEM TO COME THROUGH OUR AREA DRY WITH SOME BREEZY
W-NWRLY WINDS. WITH SIGNIFICANT TIMING DIFFERENCES BETWEEN THE GFS
AND ECMWF ON MOVEMENT OF THIS SYSTEM...WILL CONTINUE TO WATCH
UPCOMING RUNS CLOSELY FOR RESOLUTION. HIGH/LOW TEMPS NEXT WED AND
THURS WILL BE MUCH CLOSER TO NORMS FOR THIS TIME OF YEAR...LOW 80S
AND LOW 40S. AWG &&

.AVIATION...AN UPPER LEVEL DISTURBANCE TRIGGERED ANOTHER ROUND OF
SHOWERS AND THUNDERSTORMS ACROSS NORTHERN/CENTRAL NEVADA AND
NORTHERN UTAH THIS AFTERNOON. THESE STORMS ARE MOVING IN A
NORTHEASTERLY DIRECTION AND WILL LINGER UNTIL AROUND 10 PM THIS
EVENING. LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND GUSTY
WINDS UP TO 45 MPH ARE EXPECTED IN AND NEAR THE STORMS. SCATTERED
CONVECTIVE ACTIVITY WILL AGAIN DEVELOP ON FRIDAY AFTERNOON ACROSS
ALL THREE TWEB ROUTES. AWG &&

.FIRE WEATHER...THUNDERSTORM ACTIVITY IS EXPECTED TO TAPER OFF LATER
THIS EVENING...REFORMING ONCE AGAIN LATE FRIDAY MORNING OR EARLY
AFTERNOON OVER MOST OF NORTHERN AND CENTRAL NEVADA. LATEST MODEL
GUIDANCE NOW SHOWS QUITE A BIT OF MOISTURE MOVING INTO NORTHWEST
NEVADA FRIDAY...FOR A HIGHER CHANCE OF WETTING RAINS THAN PREVIOUSLY
FORECAST. A DRYING TREND WILL BEGIN SATURDAY...WITH THUNDERSTORMS
CONFINED TO MAINLY EAST-CENTRAL AND EXTREME EASTERN NEVADA OVER THE
WEEKEND AND ON MONDAY. ACROSS HUMBOLDT COUNTY ON SATURDAY...WINDS
ARE EXPECTED TO INCREASE AND HUMIDITIES ARE EXPECTED TO BEGIN TO
LOWER. AT THIS TIME HOWEVER WINDS LOOK TO BE SLIGHTLY BELOW CRITICAL
LEVELS...AND HUMIDITIES ARE EXPECTED TO BE IN THE TEENS TO LOWER
TWENTIES. FOR TUESDAY...SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BE
LIMITED TO EAST-CENTRAL NEVADA. AT THIS TIME...THE MIDDLE OF NEXT
WEEK LOOKS DRY AND STABLE WITH COOLER AIR MOVING INTO THE REGION.
ROOD &&

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

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ELKO NV
324 PM PDT THU AUG 30 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0320 PM     TSTM WND GST     DEETH                   41.07N 115.27W
08/30/2007  E60 MPH          ELKO               NV   TRAINED SPOTTER

&&

GRZYWACZ