Riverside County Mountains Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Fire Weather Warning
Issued: 1:53 AM PST Dec. 17, 2017 – National Weather Service

... Red flag warning remains in effect from 8 am this morning to
8 PM PST this evening for strong gusty winds and low humidities
for lower coastal mountain slopes and adjacent valley and coastal
areas...

* wind... areas of northeast winds 20 to 30 mph with gusts to 45
mph. Isolated gusts to 55 mph below the Cajon Pass and near the
coastal foothills of the Santa Ana Mountains.

* Location... strongest winds along and below coastal mountain
slopes and passes and canyons. Lowest humidities in the inland
Empire and inland Orange County.

* Humidity... lowest daytime humidities around 15 percent.

* Timing... strongest and most widespread winds during the morning
with lowest humidities winds Sunday morning with lowest
humidities from late morning through the afternoon.

* Outlook... winds will weaken tonight and Monday.

* Impacts... any fires that develop may spread rapidly.

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 heat can contribute to
extreme fire behavior.



17



Public Information Statement
Issued: 7:14 AM PST Dec. 17, 2017 – National Weather Service

... Highest observed 12-hour wind gusts at or above 35 mph as of 7 am
Sunday...

... ... ... ... ... ... ... ... ... ... .Top 10 gusts... ... ... ... ... ... ... ... ... ...
location speed time/date elevation (ft.)

1)fremont canyon 63 mph 0351 am 12/17 1780
2)pleasants peak 58 mph 0630 am 12/17 3870
3)crestline 53 mph 0330 am 12/17 5298
4)sill hill 47 mph 0150 am 12/17 3556
5)devore 45 mph 0410 am 12/17 2081
6)san Bernardino csu 44 mph 0452 am 12/17 1520
7)campo 44 mph 0200 am 12/17 2630
8)el cariso 43 mph 0420 am 12/17 2733
9)rialto (2 s) 41 mph 0635 am 12/17 1142
10)pine valley (5 s) 41 mph 0310 am 12/17 3263
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .

Location speed time/date elevation (ft.)

... Santa Ana Mountains and foothills...
Fremont Canyon 63 mph 0351 am 12/17 1780
Pleasants Peak 58 mph 0630 am 12/17 3870
el cariso 43 mph 0420 am 12/17 2733
Sierra Peak (corona) 37 mph 0631 am 12/17 3093

... San Diego County mountains...
Sill Hill 47 mph 0150 am 12/17 3556
Campo 44 mph 0200 am 12/17 2630
Pine Valley (5 s) 41 mph 0310 am 12/17 3263
Boulevard (5 nw) 40 mph 0200 am 12/17 4114
4 E Pine Valley 39 mph 0243 am 12/17 6048
Pine Valley (3 ssw) 38 mph 0150 am 12/17 4004
viejas grade 38 mph 0340 am 12/17 3211
Pine Valley se 37 mph 0200 am 12/17 3939
Boulevard (8 nw) 37 mph 0230 am 12/17 4000
Boulder Creek 36 mph 0220 am 12/17 3706
Mt Laguna 36 mph 0125 am 12/17 6300
Big Black mountain 35 mph 0147 am 12/17 4055

... San Diego County inland valleys...
alpine (4 e) 40 mph 0340 am 12/17 2754
8 NNE Valley Center 39 mph 0330 am 12/17 3140
Jamul (7 e) 36 mph 0355 am 12/17 3760
alpine 36 mph 0552 am 12/17 2810
alpine (7 se) 35 mph 0350 am 12/17 2834

... San Bernardino and Riverside County valleys-the inland Empire...
DeVore 45 mph 0410 am 12/17 2081
San Bernardino csu 44 mph 0452 am 12/17 1520
Rialto (2 s) 41 mph 0635 am 12/17 1142
Lake Mathews (1 sw) 41 mph 0316 am 12/17 1516
Muscoy 39 mph 0530 am 12/17 1313
Riverside Airport 39 mph 0433 am 12/17 818
Rialto 38 mph 0105 am 12/17 4685
Beaumont (3 nw) 37 mph 0910 PM 12/16 2560
Ontario (6 se) 36 mph 0243 am 12/17 816
Highland Springs 35 mph 0316 am 12/17 2233

... San Bernardino County mountains...
Crestline 53 mph 0330 am 12/17 5298
Running Springs (2 nw) 39 mph 0815 PM 12/16 6350

... Riverside County mountains...
Banning (5 nnw) 37 mph 0314 am 12/17 3830

... Orange County inland...
Portola hills (1 wnw) 39 mph 0532 am 12/17 969

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.


714 am PST sun Dec 17 2017

... Highest observed 12-hour wind gusts at or above 35 mph as of 7 am
Sunday...

... ... ... ... ... ... ... ... ... ... .Top 10 gusts... ... ... ... ... ... ... ... ... ...
location speed time/date elevation (ft.)

1)fremont canyon 63 mph 0351 am 12/17 1780
2)pleasants peak 58 mph 0630 am 12/17 3870
3)crestline 53 mph 0330 am 12/17 5298
4)sill hill 47 mph 0150 am 12/17 3556
5)devore 45 mph 0410 am 12/17 2081
6)san Bernardino csu 44 mph 0452 am 12/17 1520
7)campo 44 mph 0200 am 12/17 2630
8)el cariso 43 mph 0420 am 12/17 2733
9)rialto (2 s) 41 mph 0635 am 12/17 1142
10)pine valley (5 s) 41 mph 0310 am 12/17 3263
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .

Location speed time/date elevation (ft.)

... Santa Ana Mountains and foothills...
Fremont Canyon 63 mph 0351 am 12/17 1780
Pleasants Peak 58 mph 0630 am 12/17 3870
el cariso 43 mph 0420 am 12/17 2733
Sierra Peak (corona) 37 mph 0631 am 12/17 3093

... San Diego County mountains...
Sill Hill 47 mph 0150 am 12/17 3556
Campo 44 mph 0200 am 12/17 2630
Pine Valley (5 s) 41 mph 0310 am 12/17 3263
Boulevard (5 nw) 40 mph 0200 am 12/17 4114
4 E Pine Valley 39 mph 0243 am 12/17 6048
Pine Valley (3 ssw) 38 mph 0150 am 12/17 4004
viejas grade 38 mph 0340 am 12/17 3211
Pine Valley se 37 mph 0200 am 12/17 3939
Boulevard (8 nw) 37 mph 0230 am 12/17 4000
Boulder Creek 36 mph 0220 am 12/17 3706
Mt Laguna 36 mph 0125 am 12/17 6300
Big Black mountain 35 mph 0147 am 12/17 4055

... San Diego County inland valleys...
alpine (4 e) 40 mph 0340 am 12/17 2754
8 NNE Valley Center 39 mph 0330 am 12/17 3140
Jamul (7 e) 36 mph 0355 am 12/17 3760
alpine 36 mph 0552 am 12/17 2810
alpine (7 se) 35 mph 0350 am 12/17 2834

... San Bernardino and Riverside County valleys-the inland Empire...
DeVore 45 mph 0410 am 12/17 2081
San Bernardino csu 44 mph 0452 am 12/17 1520
Rialto (2 s) 41 mph 0635 am 12/17 1142
Lake Mathews (1 sw) 41 mph 0316 am 12/17 1516
Muscoy 39 mph 0530 am 12/17 1313
Riverside Airport 39 mph 0433 am 12/17 818
Rialto 38 mph 0105 am 12/17 4685
Beaumont (3 nw) 37 mph 0910 PM 12/16 2560
Ontario (6 se) 36 mph 0243 am 12/17 816
Highland Springs 35 mph 0316 am 12/17 2233

... San Bernardino County mountains...
Crestline 53 mph 0330 am 12/17 5298
Running Springs (2 nw) 39 mph 0815 PM 12/16 6350

... Riverside County mountains...
Banning (5 nnw) 37 mph 0314 am 12/17 3830

... Orange County inland...
Portola hills (1 wnw) 39 mph 0532 am 12/17 969

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.



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