Excessive Heat Warning
July 16, 2010
...EXCESSIVE HEAT WARNING IN EFFECT THROUGH SATURDAY EVENING FOR THE SANTA CLARITA...SAN FERNANDO...AND VENTURA COUNTY VALLEYS...AND THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS INCLUDING THE SANTA MONICA RANGE... .A HOT AIR MASS WILL REMAIN IN PLACE OVER THE AREA THROUGH THE WEEKEND FROM A STRONG HIGH PRESSURE SYSTEM OVER THE DESERT SOUTHWEST. NEAR RECORD HIGH TEMPERATURES ARE EXPECTED ACROSS MUCH OF THE AREA THROUGH SATURDAY...WITH TEMPERATURES CLIMBING TO OVER 100 DEGREES ACROSS INTERIOR SECTIONS OF THE FORECAST AREA INCLUDING THE LOWER MOUNTAIN ELEVATIONS AND PORTIONS OF THE LOS ANGELES AND VENTURA COUNTY VALLEYS. MONSOONAL MOISTURE EMBEDDED IN THE SOUTHEAST FLOW ALOFT AROUND HIGH PRESSURE CIRCULATION WILL ALSO FILTER INTO THE AREA. THE COMBINATION OF HEAT AND INCREASED HUMIDITY WILL ADD TO THE DISCOMFORT LEVEL. CAZ046-162100- /O.CON.KLOX. EH.W.0001. 000000T0000Z- 100718T0400Z/ SANTA MONICA MOUNTAINS RECREATIONAL AREA- INCLUDING... TOPANGA 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CONTINUED AN EXCESSIVE HEAT WARNING FOR THE SANTA MONICA MOUNTAINS. THIS WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY. * TEMPERATURE: HEAT INDEX READINGS...A MEASURE OF THE LEVEL OF DISCOMFORT CAUSED BY THE COMBINATION OF HEAT AND HUMIDITY... WILL RISE TO AROUND 105 DEGREES DURING THE LATE MORNING THROUGH EARLY EVENING HOURS EACH DAY. THE HIGHEST HEAT INDEX VALUES WILL LIKELY OCCUR ALONG THE INTERIOR SLOPES. * IMPACTS: HEAT STROKE...HEAT EXHAUSTION.. .HEAT CRAMPS AND SUNBURN COULD BE POSSIBLE. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES AND NEIGHBORS. NEVER EVER LEAVE CHILDREN...THE ELDERLY OR PETS IN ENCLOSED AUTOMOBILES. ..EVEN FOR A SHORT PERIOD OF TIME. EVEN IF THE WINDOWS ARE PARTIALLY OPEN... TEMPERATURES CAN QUICKLY RISE TO LIFE THREATENING LEVELS. && $$
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING IN EFFECT THROUGH SATURDAY EVENING FOR THE SANTA CLARITA...SAN FERNANDO...AND VENTURA COUNTY VALLEYS...AND THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS INCLUDING THE SANTA MONICA RANGE... .A HOT AIR MASS WILL REMAIN IN PLACE OVER THE AREA THROUGH THE WEEKEND FROM A STRONG HIGH PRESSURE SYSTEM OVER THE DESERT SOUTHWEST. NEAR RECORD HIGH TEMPERATURES ARE EXPECTED ACROSS MUCH OF THE AREA THROUGH SATURDAY...WITH TEMPERATURES CLIMBING TO OVER 100 DEGREES ACROSS INTERIOR SECTIONS OF THE FORECAST AREA INCLUDING THE LOWER MOUNTAIN ELEVATIONS AND PORTIONS OF THE LOS ANGELES AND VENTURA COUNTY VALLEYS. MONSOONAL MOISTURE EMBEDDED IN THE SOUTHEAST FLOW ALOFT AROUND HIGH PRESSURE CIRCULATION WILL ALSO FILTER INTO THE AREA. THE COMBINATION OF HEAT AND INCREASED HUMIDITY WILL ADD TO THE DISCOMFORT LEVEL. CAZ044-045-162100- /O.EXT.KLOX. EH.W.0001. 100716T1235Z- 100718T0400Z/ VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS- INCLUDING... SANTA PAULA...FILLMORE. ..OJAI... PIRU... THOUSAND OAKS...NEWBURY PARK...MOORPARK. ..SIMI VALLEY 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS MODIFIED AN EXCESSIVE HEAT WARNING FOR THE VENTURA COUNTY VALLEYS. THIS WARNING IS NOW IN EFFECT UNTIL 9 PM PDT SATURDAY. * TEMPERATURE: HEAT INDEX READINGS...A MEASURE OF THE LEVEL OF DISCOMFORT CAUSED BY THE COMBINATION OF HEAT AND HUMIDITY... WILL RISE TO AROUND 105 DEGREES DURING THE LATE MORNING THROUGH EARLY EVENING HOURS EACH DAY. * IMPACTS: HEAT STROKE...HEAT EXHAUSTION.. .HEAT CRAMPS AND SUNBURN COULD BE POSSIBLE. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES AND NEIGHBORS. ALSO...NEVER EVER LEAVE CHILDREN...THE ELDERLY OR PETS IN ENCLOSED AUTOMOBILES. ..EVEN FOR A SHORT PERIOD OF TIME. EVEN IF THE WINDOWS ARE PARTIALLY OPEN... TEMPERATURES CAN QUICKLY RISE TO LIFE THREATENING LEVELS. && $$
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING IN EFFECT THROUGH SATURDAY EVENING FOR THE SANTA CLARITA...SAN FERNANDO...AND VENTURA COUNTY VALLEYS...AND THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS INCLUDING THE SANTA MONICA RANGE... .A HOT AIR MASS WILL REMAIN IN PLACE OVER THE AREA THROUGH THE WEEKEND FROM A STRONG HIGH PRESSURE SYSTEM OVER THE DESERT SOUTHWEST. NEAR RECORD HIGH TEMPERATURES ARE EXPECTED ACROSS MUCH OF THE AREA THROUGH SATURDAY...WITH TEMPERATURES CLIMBING TO OVER 100 DEGREES ACROSS INTERIOR SECTIONS OF THE FORECAST AREA INCLUDING THE LOWER MOUNTAIN ELEVATIONS AND PORTIONS OF THE LOS ANGELES AND VENTURA COUNTY VALLEYS. MONSOONAL MOISTURE EMBEDDED IN THE SOUTHEAST FLOW ALOFT AROUND HIGH PRESSURE CIRCULATION WILL ALSO FILTER INTO THE AREA. THE COMBINATION OF HEAT AND INCREASED HUMIDITY WILL ADD TO THE DISCOMFORT LEVEL. CAZ053-054-162100- /O.CON.KLOX. EH.W.0001. 000000T0000Z- 100718T0400Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING... LOCKWOOD VALLEY...MOUNT PINOS...ACTON. .. MOUNT WILSON...SANDBERG 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CONTINUED AN EXCESSIVE HEAT WARNING FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS. THIS WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY. * TEMPERATURE: HEAT INDEX READINGS...A MEASURE OF THE LEVEL OF DISCOMFORT CAUSED BY THE COMBINATION OF HEAT AND HUMIDITY... WILL RISE TO BETWEEN 100 AND 110 DEGREES IN THE LOWER MOUNTAIN ELEVATIONS BELOW 4000 FEET DURING THE LATE MORNING THROUGH EARLY EVENING HOURS EACH DAY. * IMPACTS: HEAT STROKE...HEAT EXHAUSTION.. .HEAT CRAMPS AND SUNBURN COULD BE POSSIBLE. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES AND NEIGHBORS. ALSO...NEVER EVER LEAVE CHILDREN...THE ELDERLY OR PETS IN ENCLOSED AUTOMOBILES. ..EVEN FOR A SHORT PERIOD OF TIME. EVEN IF THE WINDOWS ARE PARTIALLY OPEN... TEMPERATURES CAN QUICKLY RISE TO LIFE THREATENING LEVELS. && $$
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING IN EFFECT THROUGH SATURDAY EVENING FOR THE SANTA CLARITA...SAN FERNANDO...AND VENTURA COUNTY VALLEYS...AND THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS INCLUDING THE SANTA MONICA RANGE... .A HOT AIR MASS WILL REMAIN IN PLACE OVER THE AREA THROUGH THE WEEKEND FROM A STRONG HIGH PRESSURE SYSTEM OVER THE DESERT SOUTHWEST. NEAR RECORD HIGH TEMPERATURES ARE EXPECTED ACROSS MUCH OF THE AREA THROUGH SATURDAY...WITH TEMPERATURES CLIMBING TO OVER 100 DEGREES ACROSS INTERIOR SECTIONS OF THE FORECAST AREA INCLUDING THE LOWER MOUNTAIN ELEVATIONS AND PORTIONS OF THE LOS ANGELES AND VENTURA COUNTY VALLEYS. MONSOONAL MOISTURE EMBEDDED IN THE SOUTHEAST FLOW ALOFT AROUND HIGH PRESSURE CIRCULATION WILL ALSO FILTER INTO THE AREA. THE COMBINATION OF HEAT AND INCREASED HUMIDITY WILL ADD TO THE DISCOMFORT LEVEL. CAZ088-547-162100- /O.CON.KLOX. EH.W.0001. 000000T0000Z- 100718T0400Z/ SANTA CLARITA VALLEY-LOS ANGELES COUNTY SAN FERNANDO VALLEY- INCLUDING... SANTA CLARITA...NEWHALL. ..VALENCIA. ..WOODLAND HILLS... NORTHRIDGE.. .BURBANK. ..UNIVERSAL CITY 535 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CONTINUED AN EXCESSIVE HEAT WARNING FOR THE SANTA CLARITA AND SAN FERNANDO VALLEYS. THIS WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY. * TEMPERATURE: HEAT INDEX READINGS...A MEASURE OF THE LEVEL OF DISCOMFORT CAUSED BY THE COMBINATION OF HEAT AND HUMIDITY... WILL RISE TO BETWEEN 105 AND 113 DEGREES DURING THE LATE MORNING THROUGH EARLY EVENING HOURS EACH DAY. * IMPACTS: HEAT STROKE...HEAT EXHAUSTION.. .HEAT CRAMPS AND SUNBURN COULD BE POSSIBLE. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES AND NEIGHBORS. NEVER EVER LEAVE CHILDREN...THE ELDERLY OR PETS IN ENCLOSED AUTOMOBILES. ..EVEN FOR A SHORT PERIOD OF TIME. EVEN IF THE WINDOWS ARE PARTIALLY OPEN... TEMPERATURES CAN QUICKLY RISE TO LIFE THREATENING LEVELS. && $$ HALL
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 328 AM PDT FRI JUL 16 2010 ...AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR MUCH OF THE MOJAVE DESERT TODAY AND SATURDAY - AND AN EXCESSIVE HEAT WATCH HAS BEEN ISSUED FOR SUNDAY... .A STRONG AREA OF HIGH PRESSURE OVER THE AREA WILL LEAD TO A PERIOD OF HOT TEMPERATURES. INCREASING MONSOONAL MOISTURE WILL ALSO LEAD TO HIGHER RELATIVE HUMIDITY. IF PRECAUTIONS ARE NOT TAKEN...SOME FOLKS MAY BE OVERCOME BY THE HEAT AND SUFFER HEAT ILLNESS. AZZ002-003-036- CAZ522>527-NVZ016-017- 020>022-162300- /O.CON.KVEF. EH.W.0002. 100716T1900Z- 100718T0400Z/ /O.CON.KVEF. EH.A.0003. 100718T1900Z- 100719T0400Z/ LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS- LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK- WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN- CADIZ BASIN-SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY- NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY- LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY- INCLUDING THE CITIES OF...LAKE HAVASU...DESERT HILLS...TOPOCK. .. KINGMAN...GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE ...WIKIEUP. .. YUCCA...BULLHEAD CITY...MOHAVE VALLEY...FURNACE CREEK...SHOSHONE. .. BARSTOW...DAGGETT. ..FORT IRWIN...BAKER. ..MOUNTAIN PASS... MITCHELL CAVERNS...MORONGO VALLEY...YUCCA VALLEY... TWENTYNINE PALMS...VIDAL JUNCTION...NEEDLES. ..MESQUITE. ..OVERTON. .. MOAPA...PAHRUMP. ..INDIAN SPRINGS...DESERT ROCK...AMARGOSA VALLEY... LAS VEGAS...NORTH LAS VEGAS...HENDERSON. ..BOULDER CITY... SUMMERLIN... NELLIS... MOUNTAINS EDGE...SEVEN HILLS...BLUE DIAMOND... HOOVER DAM...LAUGHLIN. ..PRIMM.. .SEARCHLIGHT. ..CAL-NEV- ARI 328 AM PDT FRI JUL 16 2010 /328 AM MST FRI JUL 16 2010/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON PDT /NOON MST/ TODAY TO 9 PM PDT /9 PM MST/ SATURDAY... ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON PDT /NOON MST/ TODAY TO 9 PM PDT /9 PM MST/ SATURDAY. AN EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING. THE EXCESSIVE HEAT WARNING COVERS ELEVATIONS BELOW 4000 FEET FOR CLARK AND SOUTHERN NYE COUNTIES IN SOUTHERN NEVADA...SOUTHERN MOHAVE COUNTY IN ARIZONA...THE DESERTS OF SAN BERNARDINO COUNTY AS WELL AS DEATH VALLEY NATIONAL PARK IN EASTERN CALIFORNIA. * EXPECTED TEMPERATURE: 108 TO 115 DEGREES IN THE LAS VEGAS VALLEY...AROUND 112 DEGREES AT PAHRUMP AND BARSTOW...115 TO 118 DEGREES FROM MESQUITE SOUTH DOWN THE COLORADO RIVER VALLEY TO LAKE HAVASU CITY...122 TO 125 DEGREES AT FURNACE CREEK IN DEATH VALLEY NATIONAL PARK AND 104 TO 106 DEGREES AT KINGMAN. IN ADDITION...INCREASI NG MONSOONAL MOISTURE WILL LEAD TO HIGHER HEAT INDEX VALUES MAKING IT FEEL SEVERAL DEGREES HOTTER THAN IT DID THURSDAY WITH SIMILAR TEMPERATURES. * GREATEST IMPACT AREAS: THE HOTTEST TEMPERATURES WILL OCCUR WITHIN THE COLORADO RIVER VALLEY AND DEATH VALLEY NATIONAL PARK. PLAN ANY OUTDOOR ACTIVITIES IN THE EARLY MORNING OR IN THE EVENING AFTER SUNSET. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT DANGEROUSLY HOT TEMPERATURES ARE EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGHER THAN NORMAL HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT EXHAUSTION AND HEAT STROKE ARE POSSIBLE. DRINK PLENTY OF WATER...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. && $$
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 328 AM PDT FRI JUL 16 2010 ...AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR MUCH OF THE MOJAVE DESERT TODAY AND SATURDAY - AND AN EXCESSIVE HEAT WATCH HAS BEEN ISSUED FOR SUNDAY... .A STRONG AREA OF HIGH PRESSURE OVER THE AREA WILL LEAD TO A PERIOD OF HOT TEMPERATURES. INCREASING MONSOONAL MOISTURE WILL ALSO LEAD TO HIGHER RELATIVE HUMIDITY. IF PRECAUTIONS ARE NOT TAKEN...SOME FOLKS MAY BE OVERCOME BY THE HEAT AND SUFFER HEAT ILLNESS. CAZ520-162300- /O.CON.KVEF. EH.W.0002. 100716T1900Z- 100718T0400Z/ OWENS VALLEY- INCLUDING THE CITIES OF...BISHOP. ..INDEPENDENCE. ..LONE PINE... OLANCHA 328 AM PDT FRI JUL 16 2010 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM PDT SATURDAY... AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM PDT SATURDAY. * EXPECTED TEMPERATURE: 100 TO 108 DEGREES IN THE OWENS VALLEY. * GREATEST IMPACT AREAS: THE HOTTEST TEMPERATURES WILL OCCUR FROM LATE MORNING THROUGH EARLY EVENING. PLAN ANY OUTDOOR ACTIVITIES IN THE EARLY MORNING OR LATE EVENING AFTER SUNSET. PRECAUTIONARY/ PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT DANGEROUSLY HOT TEMPERATURES ARE EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGHER THAN NORMAL HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT EXHAUSTION AND HEAT STROKE ARE POSSIBLE. DRINK PLENTY OF WATER...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.
Source: http://forecast. weather.gov/ wwamap/wwatxtget .php?cwa= lox&wwa=excessive% 20heat%20warning
Los Angeles County DCS 
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