Flash Flood Warning 6, NWS Reno, NV

000 
WGUS75 KREV 090506
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
906 PM PDT MON JUN 8 2009

NVC031-090630-
/O.CON.KREV.FF.W.0006.000000T0000Z-090609T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHOE NV-
906 PM PDT MON JUN 8 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM PDT FOR 
SOUTH CENTRAL WASHOE COUNTY 2 MILES NORTH OF SPANISH SPRINGS...

AT 956 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE LIGHT RAIN OVER THE WARNED AREA WITH STRONGER THUNDERSTORMS 
NEAR BY. DOPPLER RAINFALL ESTIMATED BETWEEN ONE AND A HALF AND ONE 
AND THREE QUARTER INCHES OF RAIN FELL 2 MILES NORTH OF SPANISH 
SPRINGS OR ONE MILE EAST OF THE SPANISH SPRINGS AIRPORT IN LESS 
THAN ONE HOUR. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CONTINUE TO 
CAUSE FLOODING OF LOW LYING AREAS...SMALL CREEKS AND 
STREAMS...COUNTRY ROADS...AS WELL AS RANCHLANDS UNTIL 1130 PM. 

IF YOU COME ACROSS FLOODED ROADWAYS...DO NOT DRIVE THROUGH THEM AS 
THE WATER IS OFTEN MUCH DEEPER THAN IT APPEARS. MOST FLOODING DEATHS 
OCCUR FROM PEOPLE TRYING TO DRIVE THROUGH FLOODED ROADWAYS.  

LAT...LON 3970 11969 3970 11962 3962 11964 3964 11972

$$

RM

000 
WGUS75 KREV 090625
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
1125 PM PDT MON JUN 8 2009

NVC031-090631-
/O.EXP.KREV.FF.W.0006.000000T0000Z-090609T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHOE NV-
1125 PM PDT MON JUN 8 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM PDT FOR SOUTH 
CENTRAL WASHOE COUNTY 2 MILES NORTH OF SPANISH SPRINGS...

THE THREAT FOR CONTINUED FLASH FLOODING HAS DIMINISHED. HEAVY RAIN 
THAT PROMPTED THE FLASH FLOOD WARNING NORTH OF SPANISH SPRINGS HAS 
ENDED WITH FLOODED CREEKS...ROADWAYS AND LOW LYING AREAS RECEDING. 
DUE TO THE HEAVY RAIN...MINOR FLOODING OR RUNOFF MAY CONTINUE IN LOW 
SPOTS FOR SEVERAL MORE HOURS.

LAT...LON 3970 11969 3970 11962 3962 11964 3964 11972

$$

RM

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
239 PM PDT MON JUN 8 2009

.SHORT TERM...
SHOWERS DEVELOPED AROUND 18Z TODAY WITH FIRST LIGHTNING STRIKES
OCCURRING ABOUT AN HOUR LATER. COVERAGE SO FAR HAS REMAINED SOUTH
OF A MINDEN-HAWTHORNE LINE WITH CELLS DRIFTING SLOWLY NORTH AT 10
KT OR LESS. BRIEF HEAVY RAINFALL AND SMALL HAIL ARE LIKELY WITH
THE STRONGER CELLS...BUT NARROW HEAVY PRECIP CORES SHOULD MINIMIZE
FLOODING THREATS UNLESS A CELL BECOMES TRAPPED IN THE MOUNTAINS
AND IS ABLE TO SUSTAIN ITSELF FOR AT LEAST A COUPLE OF HOURS IN
THE SAME LOCATION.

MOST TSTM ACTIVITY SHOULD DIMINISH THIS EVENING...ALTHOUGH THE
INCREASED MOISTURE AND LEFTOVER OUTFLOW BOUNDARIES MAY ALLOW FOR
SOME LINGERING SHOWERS OVERNIGHT SOUTH OF HIGHWAY 50.

BY TUESDAY...LOWER CONVECTIVE TEMPS WILL ALLOW SOME SHOWER
DEVELOPMENT BEFORE 18Z AGAIN SOUTH OF HIGHWAY 50 AND EAST OF
HIGHWAY 95...ALTHOUGH SOME WARMING ALOFT WILL LIKELY CAP OFF
VERTICAL GROWTH AND LIMIT TSTM INTENSITY. HAVE ALSO ADDED SOME
ISOLD TSTMS NEAR AND EAST OF RENO AS MOST GUIDANCE EXCEPT THE GFS
INDICATE CONDITIONS FAVORABLE FOR SOME CONVECTION BY LATE
AFTERNOON...THEN PUSHING EAST TOWARD W-CNTRL NV IN THE EARLY
EVENING AS WEST WINDS INCREASE. FARTHER NORTH...WEAK TROF OFF THE
OREGON COAST WILL ALLOW FOR SOME ISOLD AFTN-EVE CONVECTION
GENERALLY NORTH OF SUSANVILLE-GERLACH. TSTM POTENTIAL WILL BE
MINIMAL OVER THE TAHOE BASIN AND INTO SRN LASSEN COUNTY AS WEST
WINDS PUSH OFF THE CREST AND REDUCE AVAILABLE MOISTURE AND INSTBY
OVER THESE AREAS.

BY WEDNESDAY...THE POTENTIAL FOR TSTMS WILL BE REDUCED OVER MUCH
OF THE REGION AS LOWER CONVECTIVE TEMPS COMBINE WITH WEAKER LAPSE
RATES ALOFT AND LOWER EQUILIBRIUM LEVELS. THESE CONDITIONS WOULD BE
CONDUCIVE TO OVERDEVELOPMENT OF SHOWERS BY MIDDAY WITH CELLS
STRUGGLING TO BUILD VERTICALLY. IF ANY TSTMS MANAGE TO
FORM...THEY WOULD BE MOST LIKELY OVER MINERAL-ERN MONO COUNTIES
WHERE DIURNAL CONVERGENCE AND HEATING MAY BE A LITTLE MORE
FAVORABLE...AND IN FAR NERN CA-NWRN NV WHERE WEAK SHORTWAVE
ENERGY CONTINUES TO ROTATE AROUND THE MAIN TROF OFF THE OREGON
COAST. MOST CONVECTION SHOULD DIMINISH QUICKLY AFTER PEAK HEATING
HAS PASSES...ALTHOUGH THE FAR NORTH PORTIONS OF NV MAY SEE A FEW
SHOWERS OVERNIGHT IF THE SHORTWAVE HAS NOT YET CLEARED THIS AREA
BY MIDNIGHT.

TSTM POTENTIAL IMPROVES ON THURSDAY AS ANOTHER WEAK SHORTWAVE
APPEARS TO BE BETTER TIMED TO PRODUCE IMPROVED LIFT AND STEEPER
LAPSE RATES DURING THE AFTERNOON...WITH EQUILIBRIUM LEVELS HIGHER
THAN WEDNESDAY. HOWEVER...THIS SHORTWAVE HAS TRENDED WEAKER THAN
PREVIOUS MODEL RUNS AND TRACK OF LOW CENTER REMAINS FARTHER NORTH
ACROSS OREGON...IN CONTRAST TO SOME EARLIER PROJECTIONS OF THE LOW
CENTER SLIDING INTO THE WRN GREAT BASIN. AS A RESULT...POPS WERE
TRIMMED BACK A BIT ESPECIALLY ACROSS THE I-80 AND HIGHWAY 50
CORRIDORS.

THE LOW CONVECTIVE TEMPS COMBINED WITH AREAS OF HIGH LEVEL
MOISTURE MOVING IN FROM THE PACIFIC WILL PRODUCE MOSTLY CLOUDY
CONDS OVER MOST AREAS...EXCEPT MAYBE SOME PARTIAL CLEARING FROM
TAHOE-SRN LASSEN EWD ACROSS RENO-CARSON TUES-TUES NGT AS
WESTERLIES PUSH CONVECTION TO THE EAST. TEMPS LIKELY TO REMAIN
SLIGHTLY BELOW NORMAL THRU THURSDAY DUE TO THIS CLOUD COVER AND
TROF OVER THE WRN US KEEPING NEGATIVE 500 MB HEIGHT ANOMALIES OVER
THE REGION FOR THIS TIME OF YEAR. MJD

.LONG TERM...FRIDAY THROUGH MONDAY...
CURRENT FORECAST CHANGED VERY LITTLE AS MODELS CONTINUE TO SHOW A
BAGGY TROUGH ALONG THE WEST COAST THROUGH THE PERIOD. MODERATE
INSTABILITY AND DAYTIME HEATING ALONG WITH ANY SUBTLE IMPULSES
ROTATING THROUGH THE TROUGH WILL TRIGGER DIURNAL THUNDERSTORMS.
THUNDERSTORM ACTIVITY SHOULD BE PRIMARILY CONFINED TO FAVORED AREAS
IN NORTHERN WASHOE/LASSEN COUNTIES AND FURTHER SOUTH IN MONO AND
MINERAL COUNTIES FOR FRIDAY ALTHOUGH ACTIVITY MAY INCREASE AS WE
MOVE INTO THE WEEKEND.

THE LATEST EC RUN LOOKS MORE LIKE YESTERDAY/S 12Z RUN WITH A CLOSED
LOW ALONG THE NORTHERN CA COAST ON FRIDAY. THE EC SWINGS A
NEGATIVELY TILTED SHORTWAVE THROUGH THE AREA FRIDAY NIGHT WITH
ANOTHER WAVE KICKING THE LOW ACROSS NORTHERN CA AND NORTHERN NV LATE
SATURDAY AND SUNDAY. THIS WOULD POINT TO A PERIOD OF MORE WIDESPREAD
SHOWER AND THUNDERSTORM ACTIVITY FOR THE WEEKEND. THE GFS ALSO
BRINGS A SHORTWAVE ACROSS THE AREA SUNDAY. DETAILS WITH THESE
FEATURES NEARLY A WEEK OUT ARE DIFFICULT TO PINPOINT AT THIS TIME.

TEMPERATURES SHOULD BE NEAR OR BELOW NORMAL FOR THE PERIOD. JAH

&&

.AVIATION...
ISOLATED THUNDERSTORMS BUILD CLOSE TO TAF SITES BEFORE DISSIPATING
BY 03Z. MORE THUNDERSTORM COVERAGE WILL OCCUR SOUTH OF THE TAHOE
AREA IN THE SIERRA AND ALONG AND SOUTH OF HIGHWAY 50 IN WESTERN NV.
THUNDERSTORMS FOR TUESDAY WILL BE SOUTH OF TAHOE IN THE SIERRA AND
EAST OF RENO.

KTRK...VSBYS WILL BE REDUCED AGAIN OVERNIGHT TO LIFR CONDITIONS
08Z-16Z.

JAH
&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...NONE.
CA...NONE.
&&

HTTP://WEATHER.GOV/RENO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
658 PM PDT MON JUN 08 2009

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

0645 PM     HAIL             4 S SUSANVILLE          40.32N 120.56W
06/08/2009  E0.25 INCH       LASSEN             CA   TRAINED SPOTTER

            SPOTTER REPORTED PEA SIZE HAIL STARTING AT 645 PM

&&

KMOZLEY

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RENO NV
707 PM PDT MON JUN 08 2009

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

0627 PM     HAIL             3 S BOCA RESERVOIR      39.36N 120.10W
06/08/2009  E0.25 INCH       NEVADA             CA   TRAINED SPOTTER

            SPOTTER REPORTED PEA SIZE HAIL AND RAIN.

0645 PM     HAIL             4 S SUSANVILLE          40.32N 120.56W
06/08/2009  E0.25 INCH       LASSEN             CA   TRAINED SPOTTER

            SPOTTER REPORTED PEA SIZE HAIL STARTING AT 645 PM

0705 PM     HEAVY RAIN       2 ESE RENO              39.48N 119.74W
06/08/2009  M0.85 INCH       WASHOE             NV   TRAINED SPOTTER

            THUNDERSTORM OVER EAST RENO NEAR ROSEWOOD LAKES PRODUCED
            0.85 INCHES OF RAIN IN ABOUT A HALF HOUR WITH PEA SIZED
            HAIL. STILL RAINING BUT LETTING UP.

&&

RMILNE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
755 PM PDT MON JUN 8 2009

NVZ002>004-090330-
GREATER LAKE TAHOE AREA-GREATER RENO-CARSON CITY-MINDEN AREA-WESTERN
NEVADA BASIN AND RANGE INCLUDING PYRAMID LAKE-
755 PM PDT MON JUN 8 2009

...STRONG THUNDERSTORMS ALONG INTERSTATE 80 AND SPANISH SPRINGS IN
WESTERN NEVADA...

AT 747 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS ARE TRACKING
A STRONG THUNDERSTORM NEAR LOCKWOOD...OR 8 MILES EAST OF RENO. THIS
STORM WAS NEARLY STATIONARY NEAR SPANISH SPRINGS.

OCCASIONAL LIGHTNING...HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND
ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...
SMALL PEA OR MARBLE SIZE HAIL...AND GUSTY WINDS OF AROUND 40 TO 50
MPH... ARE EXPECTED WITH THIS STORM.

* LOCATIONS AFFECTED INCLUDE...RENO...LOCKWOOD...MOUNT ROSE SUMMIT
...NEW WASHOE CITY...SPANISH SPRINGS AND NIXON.

THIS STORM WILL AFFECT INTERSTATE 80 IN NEVADA BETWEEN MILE MARKERS
10 AND 8.

HEAVY RAINFALL IS OCCURRING WITH THIS STORM. EXPECT PONDING OF WATER
ON LOCAL ROADWAYS. DRIVERS SHOULD SLOW DOWN AND TURN ON THEIR
HEADLIGHTS IF ENCOUNTERING HEAVY RAINS.

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO...
WEATHER.GOV/RENO ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES
AND POSSIBLE WARNINGS.

&&

LAT...LON 3928 11934 3928 11997 3987 11994 3989 11932
TIME...MOT...LOC 0249Z 012DEG 1KT 3952 11967

OHARA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
759 PM PDT MON JUN 08 2009

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

0757 PM     HEAVY RAIN       4 S SUSANVILLE          40.32N 120.56W
06/08/2009  M0.29 INCH       LASSEN             CA   TRAINED SPOTTER

            THUNDERSTORMS NEAR JANESVILLE DROPPED 0.29 INCHES OF RAIN
            AND SMALL HAIL OVER THE PAST HOUR.

&&

RMILNE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
809 PM PDT MON JUN 08 2009

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

0757 PM     HEAVY RAIN       4 N RENO                39.60N 119.82W
06/08/2009  M0.26 INCH       WASHOE             NV   NWS EMPLOYEE

            THUNDERSTORMS OVER THE NWS OFFICE IN RENO BROUGHT 0.26
            INCHES OF RAIN AND SLUSHY SMALL HAIL IN THE PAST HOUR.
            STILL RAINING LIGHTLY.

&&

RMILNE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
819 PM PDT MON JUN 08 2009

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

0814 PM     HAIL             4 NNE RENO              39.59N 119.79W
06/08/2009  E0.25 INCH       WASHOE             NV   TRAINED SPOTTER

            A TRAINED WEATHER SPOTTER LOCATED AT THE INTERSECTION OF
            LA POSADA AND PYRAMID HIGHWAY IN SPANISH SPRINGS REPORTED
            PEA SIZE HAIL AND HEAVY RAINFALL. THERE WAS NO FLOODING.

&&

OHARA