Flash Flood Warning 1, NWS Hanford, CA

000 
WGUS76 KHNX 282133
FFSHNX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
233 PM PDT TUE AUG 28 2007

CAC039-282300-
/X.CON.KHNX.FF.W.0001.000000T0000Z-070828T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADERA CA-
233 PM PDT TUE AUG 28 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR
NORTHEASTERN MADERA COUNTY...

AT 224 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING.  THIS STORM WAS
LOCATED NEAR GRAVEYARD MEADOW...OR ABOUT 15 MILES EAST OF YOSEMITE
SOUTH ENTRANCE...MOVING SOUTHWEST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MINARETS RAWS...STRAWBERRY MINE...AND GRANITE CREEK CAMPGROUND. 
DOPPLER RADAR ESTIMATES BETWEEN 4 TO 5 INCHES OF RAIN HAVE FALLEN IN 
THE WARNED AREA...ADDITIONAL RAINFALL OF 1 TO 2 INCHES ARE POSSIBLE 
WITH THIS STORM. 

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO CANYONS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. 

LAT...LON 3762 11939 3752 11917 3736 11932 3738 11950
TIME...MOT...LOC 2129Z 062DEG 7KT 3751 11938

$$

JMB

000 
WGUS76 KHNX 282300
FFSHNX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
400 PM PDT TUE AUG 28 2007

CAC039-282310-
/X.EXP.KHNX.FF.W.0001.000000T0000Z-070828T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADERA CA-
400 PM PDT TUE AUG 28 2007

...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHEASTERN MADERA
COUNTY...

THE THUNDERSTORM PRODUCING HEAVY RAIN HAS MOVED OUT OF MADERA 
COUNTY. 

LAT...LON 3762 11939 3752 11917 3736 11932 3738 11950
TIME...MOT...LOC 2300Z 062DEG 7KT 3743 11958

$$

SANGER

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
829 AM PDT TUE AUG 28 2007

.UPDATE...INCREASED POPS OVER THE SIERRA FOR TODAY AS MORE
MOISTURE HAS LINGERED OVER THE DISTRICT THAN PREVIOUSLY ANTICIPATED.
WILL INCLUDES ALL OF ZONES 96 AND 97 IN SLIGHT CHANCE WITH
ELEVATIONS ABOVE 9000 FEET INCREASED TO 40%. REST OF FORECAST AREA UNCHANGED.
&&

.DISCUSSION...RADAR SHOWS SOME RESIDUAL CONVECTION JUST EAST OF
THE SIERRA CREST AND WATER VAPOR IMAGERY INDICATES QUITE A BIT OF
RESIDUAL MOISTURE AND EVEN A MESO LOW SPINNING OVER THE CENTRAL
SIERRA. FORECAST SOUNDINGS ON BOTH THE GFS AND WRF MODELS KEEP A
DECENT AMOUNT OF INSTABILITY IN PLACE OVER THE SIERRA THROUGH THIS
AFTERNOON WITH LIFTED INDICIES TO -4 AND CAPES TO AS HIGH AS 800
J/KG ALONG THE CREST. HAVE UPPED POPS TO REFLECT THIS THINKING.
OVER THE REST OF THE FORECAST AREA, THE AIRMASS CONTINUES TO WARM
AS YESTERDAYS PACIFIC TROUGH STALLED JUST TO THE NORTH AND
QUICKLY MOVED EAST OF THE AREA. THE MAIN FORECAST CONCERN FOR THE
NEXT SEVERAL DAYS WILL BE THE HEAT AS FORECAST MODELS ALL AGREE
THAT A STRONG HIGH PRESSURE RIDGE WILL REMAIN OVER THE AREA
THROUGH THE WEEKEND. CURRENT GRIDDED PACKAGE REFLECTS THIS HOT
SCENARIO.

&&

.AVIATION...ISOLATED AFTERNOON AND EARLY EVENING THUNDERSTORMS
OVER THE HIGHEST ELEVATIONS OF THE SOUTHERN SIERRA NEVADA WILL
PRODUCE LOCAL MVFR CONDITIONS TODAY. OTHERWISE...VFR CONDITIONS
WILL PREVAIL OVER MUCH OF THE CENTRAL CALIFORNIA INTERIOR THROUGH
18Z WEDNESDAY. FOR SPECIFIC DETAILS...PLEASE REFER TO THE TAFS FOR
KMCE...KFAT AND KBFL...AND TWEB ROUTES 421 AND 423.

&&

.AIR QUALITY ISSUES...NONE

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

DUDLEY

WEATHER.GOV/HANFORD

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HANFORD CA
1110 AM PDT TUE AUG 28 2007

CAZ089>099-282300-
WEST CENTRAL SAN JOAQUIN VALLEY-EAST CENTRAL SAN JOAQUIN VALLEY-
SOUTHWESTERN SAN JOAQUIN VALLEY-SOUTHEASTERN SAN JOAQUIN VALLEY-
MARIPOSA MADERA AND FRESNO COUNTY FOOTHILLS-
TULARE COUNTY FOOTHILLS-KERN COUNTY MOUNTAINS-
SIERRA NEVADA FROM YOSEMITE TO KINGS CANYON-
TULARE COUNTY MOUNTAINS-INDIAN WELLS VALLEY-
SOUTHEASTERN KERN COUNTY DESERT-
1110 AM PDT TUE AUG 28 2007

...HEAT ADVISORY CONDITIONS POSSIBLE ACROSS THE SAN JOAQUIN VALLEY...

A HOT AND HUMID AIRMASS...THE SAME AIRMASS THAT PRODUCED THE
EXTREME HEAT CONDITIONS LAST WEEK IN THE CENTRAL USA...WILL MOVE
WEST TO CALIFORNIA THROUGH THE END OF THE WORK WEEK. A HEAT
ADVISORY MAY BE REQUIRED IN THE NEXT DAY OR SO. EXCESSIVE HEAT
CONDITIONS MAY CONTINUE INTO EARLY NEXT WEEK.

FOR THURSDAY AND FRIDAY THE AFTERNOON HIGH TEMPERATURE WILL RANGE
BETWEEN 103 TO 108 ACROSS MUCH OF THE SAN JOAQUIN VALLEY. COMBINED
WITH SOME LEFTOVER MONSOONAL MOISTURE...THE HEAT INDEX MAY EDGE TO
NEAR 110 DEGREES FOR TWO HOURS OR MORE DURING THE AFTERNOON.
OVERNIGHT LOW TEMPERATURES WILL BE IN THE 70S IN MOST AREAS.

PEOPLE MOST SUSCEPTIBLE TO HEAT ILLNESS INCLUDE CHILDREN AND THE
ELDERLY...AS WELL AS PEOPLE SUFFERING FROM CERTAIN HEALTH
CONDITIONS. THESE INDIVIDUALS SHOULD BE CLOSELY MONITORED DURING
TIMES OF EXTREME HEAT. FOR EXAMPLE...CHECK UP ON ELDERLY FAMILY
MEMBERS OR NEIGHBORS TWICE A DAY.

KEEP IN MIND THESE ADDITIONAL TIPS DURING EXTREME HEAT EPISODES...

*DRINK PLENTY OF FLUIDS

*STAY OUT OF THE SUN...OR REMAIN INDOORS WITH AIR-CONDITIONING...IF
AVAILABLE

*AVOID ALCOHOL AND CAFFEINATED BEVERAGES SUCH AS COFFEE...SODA AND
TEA

*USE WET CLOTHS OR COOLER PACKS ON THE FACE...WRISTS OR NECK FOR
 A QUICK COOL-DOWN

*REMEMBER YOUR PETS...THEY NEED PLENTY OF FRESH DRINKING WATER AND
SHADE TO BE PROTECTED FROM EXTREME HEAT

*IF HEAT ILLNESS OCCURS...CONTACT YOUR PHYSICIAN OR CALL 911 IMMEDIATELY

MONITOR THE LATEST CONDITIONS AND FORECASTS FROM THE NATIONAL
WEATHER SERVICE AT: WWW.WEATHER.GOV/HANFORD. FOR MORE HEAT
RELATED SAFETY INFORMATION...GOT TO THE AMERICAN RED CROSS
WEBSITE: WWW.REDCROSS.ORG/SERVICES/HSS/TIPS/HEAT.HTML

JMB

WEATHER.GOV/HANFORD