Record-breaking temperatures return to San Diego County - The CW San Diego - News 8

Warnings

excessive heat
San Diego County Coastal Areas, CA

CAZ043-242130-
/O.CON.KSGX.EH.W.0005.000000T0000Z-171025T0300Z/
San Diego County Coastal Areas-
Including the cities of Vista, Carlsbad, Encinitas, Chula Vista,
National City, and San Diego
354 AM PDT Tue Oct 24 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* HIGH TEMPERATURES...upper 80s into the 90s near the beaches...and
100 to 106 elsewhere.

* IMPACTS...Heat related illness is likely for those involved in
strenuous outdoor activity, or those with health conditions
that do not have adequate access to air conditioning. If
untreated, heat illness events could be fatal. Never leave
children or pets inside a parked car!

* OUTLOOK...Not quite as hot on Wednesday with slow cooling for
Thursday and Friday.

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.

&&

$$

San Diego County Valleys, CA

CAZ048-050-552-554-242130-
/O.CON.KSGX.EH.W.0005.000000T0000Z-171025T0300Z/
/O.CON.KSGX.WI.Y.0031.000000T0000Z-171025T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-Orange County Coastal Areas-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido,
El Cajon, San Marcos, La Mesa, Santee, Poway, Huntington Beach,
Costa Mesa, Santa Ana, Anaheim, Garden Grove, Irvine, Orange,
Fullerton, and Mission Viejo
354 AM PDT Tue Oct 24 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...

* HIGH TEMPERATURES...90s near the beaches and for the far inland
valleys...and 100 to 108 elsewhere for coastal areas into the
western valleys.

* WINDS....Areas of northeast winds 25 to 35 mph with gusts to 55
mph. Isolated gusts to 65 mph. Winds will not be quite as strong
nor widespread for tonight into Wednesday morning with areas of
northeast to east winds 15 to 25 mph with gusts to 45 mph.

* IMPACTS...Heat related illness is likely for those involved in
strenuous outdoor activity, or those with health conditions that
do not have adequate access to air conditioning. If untreated,
heat illness events could be fatal. Never leave children or pets
inside a parked car! Travel will be hazardous for high profile
vehicles. Watch for broken tree limbs and downed palm fronds.

* OUTLOOK...Not quite as hot for Wednesday with cooling near the
coast on Thursday spreading slowly inland through the weekend.

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.

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

fire weather
San Diego County Inland Valleys, CA

CAZ248-250-255>258-265-552-554-242130-
/O.CON.KSGX.FW.W.0004.000000T0000Z-171026T0100Z/
San Bernardino and Riverside County Valleys - The Inland Empire-
San Diego County Inland Valleys-San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger Districts Of
The San Bernardino National Forest-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San Bernardino
National Forest-Santa Ana Mountains-
Including The Trabuco Ranger District of the Cleveland National
Forest-San Diego County Mountains-
Including The Palomar And Descanso Ranger Districts of the
Cleveland National Forest-San Gorgonio Pass Near Banning-
Orange County Coastal Areas-Orange County Inland Areas-
227 AM PDT Tue Oct 24 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY
FOR STRONG GUSTY WINDS AND LOW HUMIDITY...

* WIND...Areas of northeast winds 25 to 35 mph with gusts to 55
mph. Isolated gusts to 65 mph. Winds will not be quite as strong
nor widespread for tonight into Wednesday morning with areas of
northeast winds 15 to 25 mph with gusts to 45 mph.

* HUMIDITY...Lowest daytime humidity around 5 percent with
poorest overnight recovery near the coastal foothills. Lowest
daytime humidity Wednesday of 5 to 10 percent.

* TIMING...The most extreme combination of heat...low
humidity...and wind will be through today. Then not quite as hot
for Wednesday with a slight recovery in humidity and with winds
more localized and not quite as strong.

* OUTLOOK...Weaker winds are expected for Thursday and Friday
with slow cooling spreading inland and with a gradual
recovery of humidity.

* IMPACTS...Any fires that develop will likely spread rapidly...
especially through today. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

Advisories

wind
San Diego County Valleys, CA

CAZ048-050-552-554-242130-
/O.CON.KSGX.EH.W.0005.000000T0000Z-171025T0300Z/
/O.CON.KSGX.WI.Y.0031.000000T0000Z-171025T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-Orange County Coastal Areas-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido,
El Cajon, San Marcos, La Mesa, Santee, Poway, Huntington Beach,
Costa Mesa, Santa Ana, Anaheim, Garden Grove, Irvine, Orange,
Fullerton, and Mission Viejo
354 AM PDT Tue Oct 24 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...

* HIGH TEMPERATURES...90s near the beaches and for the far inland
valleys...and 100 to 108 elsewhere for coastal areas into the
western valleys.

* WINDS....Areas of northeast winds 25 to 35 mph with gusts to 55
mph. Isolated gusts to 65 mph. Winds will not be quite as strong
nor widespread for tonight into Wednesday morning with areas of
northeast to east winds 15 to 25 mph with gusts to 45 mph.

* IMPACTS...Heat related illness is likely for those involved in
strenuous outdoor activity, or those with health conditions that
do not have adequate access to air conditioning. If untreated,
heat illness events could be fatal. Never leave children or pets
inside a parked car! Travel will be hazardous for high profile
vehicles. Watch for broken tree limbs and downed palm fronds.

* OUTLOOK...Not quite as hot for Wednesday with cooling near the
coast on Thursday spreading slowly inland through the weekend.

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.

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

Santa Ana Mountains and Foothills, CA

CAZ055>058-242130-
/O.CON.KSGX.WI.Y.0031.000000T0000Z-171025T2100Z/
San Bernardino County Mountains-Riverside County Mountains-
Santa Ana Mountains and Foothills-San Diego County Mountains-
Including the cities of Crestline, Running Springs,
Idyllwild-Pine Cove, and Pine Valley
354 AM PDT Tue Oct 24 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT WEDNESDAY...

* WINDS...Areas of northeast winds 25 to 35 mph with gusts to 55
mph. Isolated gusts to 65 mph. Winds will not be quite as strong
nor widespread for tonight into Wednesday morning with areas of
northeast to east winds 15 to 25 mph with gusts to 45 mph.

* IMPACTS...Hazardous travel for high profile vehicles. Watch
for broken tree limbs.

* OUTLOOK...Weaker winds for Thursday and Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

&&

$$

Record-breaking temperatures return to San Diego County

Weather Update: Monday, October 23, 2017 (2:00 p.m.)

SAN DIEGO (CNS) - Santa Ana winds will blow through much of San Diego County Monday and combine with record-high temperatures and extremely dry air to create dangerous fire conditions, forecasters said.

The extreme heat, expected to be 20 to 25 degrees above seasonal averages has prompted schools across San Diego to implement minimum-day schedules, while fire agencies across the county have beefed up staffing to deal with potentially dangerous wildfires.

A Red Flag Fire Warning issued by the National Weather Service for parts of San Diego County was scheduled to be in effect until 6 p.m. Wednesday amid forecasts of hot, dry and windy weather in the inland valleys and mountains. The combination of extreme heat, low humidity and Santa Ana winds will create an increased threat of wildfire ignition and large fire growth, the NWS said.

The U.S. Forest Service warned that wildfires that ignite in San Diego County "may grow rapidly." The Santa Ana Wildfire Threat Index will be increased Tuesday, when any fire that ignites "will grow rapidly and will be difficult to control."

To prepare for the increased danger of rapidly-spreading wildfires, Cal Fire, the San Diego Fire-Rescue Department and the Cleveland National Forest have all beefed up firefighting staffing levels.

Two sizeable fires erupted over the weekend. The "Church Fire" in Campo scorched about 100 acres Saturday and was expected to be fully contained Monday. The "El Capitan Fire," sparked Saturday afternoon by a plane crash that authorities believe killed two people, burned about 20 acres before firefighters brought the flames under control Saturday night.

Originally set to end Tuesday evening, the Red Flag warning was extended to 6 p.m. Wednesday as models showed high winds were expected to continue for an additional day, the NWS said. Forecasters expect Santa Ana winds to strengthen throughout Monday with gusts reaching up to 60 mph in certain spots. Meanwhile, humidity was expected to drop to about 5 percent Monday and Tuesday.

The high in the city of San Diego was forecast at 93 degrees, which would match the previous record high for the date set in 1965. If Vista hits its expected high of 102, it will break the previous record high of 99 set in 1965. El Cajon is expected to touch 100 to match the previous record high set in 2003, while Ramona's forecast of 99 would break its previous record high for the date, also set in 2003. If Alpine hits its forecast high of 99, it will break the previous Oct. 23 record of 98 set in 1959.

With such extreme seasonal heat in the forecast, 85 schools in the San Diego Unified School District have announced minimum-day schedules Monday, including Morse, Mission Bay and La Jolla high schools.

The Red Flag warning that went into effect Sunday came on the 10th anniversary of the start of the October 2007 wildfires that wrought havoc on the San Diego region. Wednesday will mark the 14th anniversary of the deadly and destructive Cedar Fire of 2003.

The NWS released some of the record-breaking temperatures reached as of Monday at 4:24 p.m. 

Highest maximum temperature records broken or tied on Oct. 23, 2017:

Location New Record Old Record Period of Record
Ramona 101 97 in 2003

1974

Riverside 102 101 in 1959 1893
Palm Springs 104 - Tied 104 in 2003 1893
Santa Ana 102 101 in 1939 1906
Vista 100 99 in 1965 1957
Alpine 99 98 in 1959 1951
El Cajon 104 100 in 2003 1979
Big Bear 74 - Tied 74 in 2003 1960

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