Santa Ana winds ease over Los Angeles

By: Dr. Jeff Masters , 2:17 PM GMT on November 17, 2008

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The Santa Ana winds have died down over Los Angeles, and winds should remain below 25 mph today through Thursday over the region. This should allow fire fighters to gain control of the three major blazes burning near the city. Wind gusts in excess of hurricane force--74 mph--were recorded at several mountain locations Friday and Saturday, thanks to the major difference in pressure between a strong high pressure system to the northeast of Los Angeles and lower pressure air over the ocean. By 4 pm PST Sunday, though, winds had fallen below 15 mph over the entire region (Figure 1), and a weak sea breeze had formed near the coast. Taking a look at this morning's wundermap (with fire layer turned on) for Los Angeles, we can see that winds are below 5 mph over the region. All high wind warnings and fire weather warnings have been canceled for California, but continued hot and dry conditions will slow down efforts of fire fighters to control the fires. The smoke has caused pollution problems in the city, and the Air Quality Index (AQI) for particulate matter less than 2.5 microns (PM2.5) exceeded the EPA standard yesterday. Today's pollution forecast calls for PM2.5 levels in the unhealthy for sensitive groups level, in excess of the EPA standards.


Figure 1. Wundermap (with fire layer turned on) for Los Angeles, California, at 4 pm EST Sunday November 16, 2008. Two major fires, the Sylmar fire to the north, and the Freeway fire to the east, are shown. The black colors show the relative concentration of smoke. The colored circles show the temperature, and the lines going into the circles show the direction the wind is blowing from. The perpendicular lines at the the end of these lines show how strong the wind is blowing. Each longer line is an additional 10 mph, and each shorter perpendicular line is an additional 5 mph. Thus, for the circle at upper right with a 66° temperature, the wind was blowing 15 mph out of the NNE. (Note that we've changed the convention used on marine maps, where these so-called "wind barbs" denote the winds in knots, not mph).

High temperature records
The hot flow of air off the desert set numerous high temperature records across Southern California on Sunday. Records set or tied included 88° in downtown Los Angeles, 93° in Camalillo; 86° at LAX airport; 90° at Long Beach; 89° at Paso Robles; 87° at Santa Maria; 91° at Woodland Hills; 87° at UCLA; 93° at Oxnard; and 87° at Santa Barbara. On Saturday, 30 high temperature records were set or tied across the state of California, including a blistering 93° in downtown Los Angeles (old record, 90° in 1936). The hottest new record was 94° at the Santa Ana Fire Station.

The forecast
Hot and dry conditions will persist over Los Angeles today, then gradually cool Tuesday and Wednesday. On Wednesday and Thursday, winds should reverse and blow cool, moist air from the oceans over the city, allowing fire fighters to gain full control of the fires. By Saturday, the GFS model is indicating a possible return to Santa Ana wind conditions for the weekend, but the ECMWF model disagrees. At this point, it appears we may get a weak Santa Ana wind event this weekend, but nowhere near as strong as the one that just ended.


Figure 2. Visible satellite image from NASA's Terra satellite taken on Sunday, November 16, 2008 at 11:30 am PST. Smoke from the Sylmar fire 20 miles north of Los Angeles has drifted out over the Catalina Islands, joined by a larger plume of smoke from the "Freeway Fire" in Orange County.

Support the Portlight Christmas for Gulf Coast Kids Honor Walk
The Portlight.org charity is sponsoring a new nationwide grassroots event to raise funds for and awareness of their ongoing efforts, specifically to provide Christmas presents (and maybe a big party) for kids and families in the Gulf Coast areas devastated by Hurricane Ike. They need 100 people across the country to commit to walking one mile this Saturday, November 22, and to raise at least $300.00 in sponsorship from friends, family, co-workers, neighbors, etc. Participants can choose where they want to walk--the local park, the mall, anywhere. Please support this worthwhile effort!

Jeff Masters

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Sayre fire
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Sayre Fire

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602. BahaHurican
10:06 AM GMT on November 20, 2008
Quoting AWeatherLover:
Hey all! I'm going to be in Greensboro, NC (which I believe is just outside of winston-Salem?) and I was wondering if anyone in the area could tell me what I can expect weather wise for Saturday-Tuesday. I haven't seen real snow since I was about 6 years old so that would be quite a treat. Thanks!
-Alicia
Snow in G'boro is unlikely at this time of year. I think we had a dusting of snow one year when I was living there. You get a better chance of snow in the Piedmont area of NC in early January and February. Up in Boone or Asheville there is a better chance in November.

(of course I'm sure somebody has already answered this :o)
Member Since: October 25, 2005 Posts: 19 Comments: 22682
601. Skyepony (Mod)
3:24 PM GMT on November 19, 2008
Freshened the world news in my blog. Most interesting again today was out of Vietnam where Noul recently hit. This blows my mind.. Posting bits & peices of this.

As central coastal provinces struggled with the loss of life and the damage caused by storm Noul (Red Sky), questions were being raised about the inaccuracy of forecasts.

Director Bui Van Duc of the National Center for Hydro-meteorological Forecasting (NCHMF) met with local media in Hanoi Tuesday to offer information about recent inaccuracies in the center’s forecasts.

On Sunday, the center had forecast Storm Noul would hit waters off the southern coast Monday and touch down on the mainland in southern provinces a day later.

In late September, the storm Mekkhala had hit north-central provinces hours earlier than forecast by the center.

The torrential rains in Hanoi late October and early this month were also not correctly forecast. The center later warned of more heavy rain and inundation in the area while waters began to recede and recovery work got underway. This did not happen.

We have only one experienced person for each shift of five people,” he said. “Sometimes, they are incompetent in solving problems and besides, there have been instances of carelessness in referring and analyzing information from other sources.

At least seven people were dead or missing and 110 seafaring vessels sunk as Noul hit coastal provinces in central Vietnam on Monday before weakening into a tropical depression, causing torrential rains that are forecast to linger until today



Okay, I got the flu so I can't stop..COME ON. We've sat here & evaluated these storms. Exclaimed look how much rain that thing has. Navy's track has been pretty close to on. Yeah they've had some most impressive cold cloud tops in that region lately but with the internet, floaters, TRMM & what not..to get one wrong one right after another~ about beyond accident. I'm tempted to try & find an e-mail address for Director Bui Van Duc.
Member Since: August 10, 2005 Posts: 209 Comments: 39079
600. RobDaHood
3:19 PM GMT on November 19, 2008
596. NEwxguy

Hey, no problems with chit-chat and getting to know your neighbors, but a couple conversations here lately I just sat back and laughed & kept my nose clean.
Member Since: September 2, 2008 Posts: 101 Comments: 33339
599. MissNadia
3:18 PM GMT on November 19, 2008
NEW BLOG!!!
Member Since: July 27, 2008 Posts: 0 Comments: 3003
598. Cotillion
3:18 PM GMT on November 19, 2008
Quoting RobDaHood:
585. NEwxguy

Morning,

We do have a tendency to digress when the tropics are quiet - LOL


That's putting it nicely. ;)
Member Since: August 23, 2008 Posts: 7 Comments: 5300
597. zoomiami
3:18 PM GMT on November 19, 2008
I think the proper term is relationships!
Member Since: August 13, 2007 Posts: 10 Comments: 4158
596. NEwxguy
3:15 PM GMT on November 19, 2008
Quoting RobDaHood:
585. NEwxguy

Morning,

We do have a tendency to digress when the tropics are quiet - LOL


I guess there are certain off topic subjects that are permissible.
Member Since: September 6, 2007 Posts: 887 Comments: 15970
595. IKE
3:15 PM GMT on November 19, 2008
Quoting RobDaHood:
585. NEwxguy

Morning,

We do have a tendency to digress when the tropics are quiet - LOL


SEX? LOL!
Member Since: June 9, 2005 Posts: 23 Comments: 37860
594. RobDaHood
3:14 PM GMT on November 19, 2008
585. NEwxguy

Morning,

We do have a tendency to digress when the tropics are quiet - LOL
Member Since: September 2, 2008 Posts: 101 Comments: 33339
593. IKE
3:13 PM GMT on November 19, 2008
Quoting NEwxguy:
583. IKE 3:02 PM GMT on November 19, 2008
Quoting sporteguy03:
Ike,
The time is almost here for the last GFS run.


LOL....correct-O.

Only 46 more runs and the 2008 Atlantic hurricane season is history....which it is now, but will be officially over in....

278 hours...
58 minutes...





I use to love your countdown in Sept and Oct.but I walked out of my house this morning and the 9 deg windchill hit me in the face,and decided I don't need your countdown anymore.


Good point....and true.
Member Since: June 9, 2005 Posts: 23 Comments: 37860
592. IKE
3:13 PM GMT on November 19, 2008
Quoting Cotillion:


Though perhaps, we need this to accompany it..

..Link


Good song...just added to my YOUTUBE fav's. Up to 249 favorites.

Jeez...almost 6 million views and radio doesn't play it around here...lol.
Member Since: June 9, 2005 Posts: 23 Comments: 37860
591. TampaSpin
3:11 PM GMT on November 19, 2008
BBL gotta run the kid to school...
Member Since: September 2, 2007 Posts: 179 Comments: 20448
590. zoomiami
3:10 PM GMT on November 19, 2008
Quoting Orcasystems:


"Make her"
Trust me.. she does not respond well to terms like that :) For some unknown reason, she cops an attitude problem. Or as our British friends say.. she gets her knickers in a knot.




LMAO - and by the way, who says it has to go that way after 20 years...

Hmm, politically correct?? Must need to work on the status.
Member Since: August 13, 2007 Posts: 10 Comments: 4158
589. TampaSpin
3:10 PM GMT on November 19, 2008
Quoting NEwxguy:
GM,all,never know what topic I'm going to find when I come in here LMAO!


GM so true......you never know....LMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
588. Cotillion
3:09 PM GMT on November 19, 2008
Quoting IKE:


LOL....correct-O.

Only 46 more runs and the 2008 Atlantic hurricane season is history....which it is now, but will be officially over in....

278 hours...
58 minutes...


Though perhaps, we need this to accompany it..

..Link
Member Since: August 23, 2008 Posts: 7 Comments: 5300
587. NEwxguy
3:08 PM GMT on November 19, 2008
583. IKE 3:02 PM GMT on November 19, 2008
Quoting sporteguy03:
Ike,
The time is almost here for the last GFS run.


LOL....correct-O.

Only 46 more runs and the 2008 Atlantic hurricane season is history....which it is now, but will be officially over in....

278 hours...
58 minutes...





I use to love your countdown in Sept and Oct.but I walked out of my house this morning and the 9 deg windchill hit me in the face,and decided I don't need your countdown anymore.
Member Since: September 6, 2007 Posts: 887 Comments: 15970
586. TampaSpin
3:08 PM GMT on November 19, 2008
Member Since: September 2, 2007 Posts: 179 Comments: 20448
585. NEwxguy
3:06 PM GMT on November 19, 2008
GM,all,never know what topic I'm going to find when I come in here LMAO!
Member Since: September 6, 2007 Posts: 887 Comments: 15970
584. Cotillion
3:06 PM GMT on November 19, 2008
The countdown to the end of the Hurricane Season was brought to you by... Portlight Industries...

Member Since: August 23, 2008 Posts: 7 Comments: 5300
583. IKE
3:02 PM GMT on November 19, 2008
Quoting sporteguy03:
Ike,
The time is almost here for the last GFS run.


LOL....correct-O.

Only 46 more runs and the 2008 Atlantic hurricane season is history....which it is now, but will be officially over in....

278 hours...
58 minutes...
Member Since: June 9, 2005 Posts: 23 Comments: 37860
582. surfmom
3:02 PM GMT on November 19, 2008
OK -- got to get functioning - got a beach check to do, work this afternoon - be dropping in through the day.

Orca - hang in --I'll be thinking of you!!
Member Since: July 18, 2007 Posts: 30 Comments: 26536
581. surfmom
2:58 PM GMT on November 19, 2008
Quoting TampaSpin:


Have to admit.....im still addicted.....LMAO
SMILES - ME TOO!!!! I'm very lucky....
Member Since: July 18, 2007 Posts: 30 Comments: 26536
580. TampaSpin
2:58 PM GMT on November 19, 2008
Quoting surfmom:
Tampa - 24 years!!!, I'm at 25...... not many of us around with so many years together.....aww come on Tampa -- you must still have "THE CRAVE"...LOL


There are 3 things that keep me happy....
1) A Clean house!
2) Faith!
3) and you know :)

Two things i control.....the other not so much........LMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
579. surfmom
2:57 PM GMT on November 19, 2008
"Make Her"
Understand that temperament very well Orca, 'Cept that would be my spouse... can only put the request on the table... and see if he picks it up...... can never ever create an environment where he feels even the slightest bit cornered......that's when alpha wolfman appears baring teeth and growling
Member Since: July 18, 2007 Posts: 30 Comments: 26536
578. TampaSpin
2:53 PM GMT on November 19, 2008
Quoting surfmom:
Tampa - 24 years!!!, I'm at 25...... not many of us around with so many years together.....aww come on Tampa -- you must still have "THE CRAVE"...LOL


Have to admit.....im still addicted.....LMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
577. surfmom
2:51 PM GMT on November 19, 2008
Tampa - 24 years!!!, I'm at 25...... not many of us around with so many years together.....aww come on Tampa -- you must still have "THE CRAVE"...LOL
Member Since: July 18, 2007 Posts: 30 Comments: 26536
576. stillwaiting
2:49 PM GMT on November 19, 2008
Quoting Orcasystems:


Its going to be interesting... the wife has not quit...



when succeed,It may inspire the wife to as well!!!!!...are you using nicorette or chewing gum to quit,I heard it helps a LITTLE......
Member Since: October 5, 2007 Posts: 20 Comments: 4970
575. Orcasystems
2:47 PM GMT on November 19, 2008
Quoting surfmom:
Make her go outside to quench her crave. And just do your best.... took me several attempts....till I got over it....... and if i don't run, I'm in trouble.

this is about the most difficult time... few more days and you'll be feeling better -- although I did have a bit of displace agression


"Make her"
Trust me.. she does not respond well to terms like that :) For some unknown reason, she cops an attitude problem. Or as our British friends say.. she gets her knickers in a knot.
Member Since: October 1, 2007 Posts: 81 Comments: 26512
574. Orcasystems
2:45 PM GMT on November 19, 2008
Quoting TampaSpin:


That sound like SEX after being married for 24 years......ROFLMAO


29 here... apparently thats when you get to the "Hope to finish up right after Christmas" part
Member Since: October 1, 2007 Posts: 81 Comments: 26512
573. surfmom
2:44 PM GMT on November 19, 2008
Make her go outside to quench her crave. And just do your best.... took me several attempts....till I got over it....... and if i don't run, I'm in trouble.

this is about the most difficult time... few more days and you'll be feeling better -- although I did have a bit of displace agression
Member Since: July 18, 2007 Posts: 30 Comments: 26536
572. TampaSpin
2:43 PM GMT on November 19, 2008
Quoting GBlet:
Good luck Orca, I used Chantix. Amazing stuff. I would not even realize I had gone for hours with no cigs. No craves. Went from 2 Packs a day to a pack every 5 days. Hope to finish up right after Christmas.


That sound like SEX after being married for 24 years......ROFLMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
571. Orcasystems
2:42 PM GMT on November 19, 2008
Quoting TampaSpin:


Canada has a similar day as Thanksgiving. What day is it......


Ummm Thanksgiving :)
Mind you, it was a couple weeks ago.
Thanksgiving: Second Monday in October
Member Since: October 1, 2007 Posts: 81 Comments: 26512
570. Cotillion
2:41 PM GMT on November 19, 2008
Endorphin.

I think you can release them just by breathing using your stomach instead of your chest... though could be totally wrong on that!
Member Since: August 23, 2008 Posts: 7 Comments: 5300
569. GBlet
2:39 PM GMT on November 19, 2008
Good luck Orca, I used Chantix. Amazing stuff. I would not even realize I had gone for hours with no cigs. No craves. Went from 2 Packs a day to a pack every 5 days. Hope to finish up right after Christmas.
Member Since: September 13, 2007 Posts: 0 Comments: 435
568. TampaSpin
2:39 PM GMT on November 19, 2008
Quoting Orcasystems:


Its going to be interesting... the wife has not quit...


Canada has a similar day as Thanksgiving. What day is it......
Member Since: September 2, 2007 Posts: 179 Comments: 20448
567. surfmom
2:39 PM GMT on November 19, 2008
Tampa's right.... frankly it's why I'm such a go-girl...... very addictive personality... so I run & run -- the running is what keeps me honest and give me the best endomorphin (sp?) rush.... that chemical sits on the brain receptors instead of the Nic and/or food. It also keeps the FAT away.... when you stop the nic, your body metabolism will slow down for a bit --thus the extra pounds.... usually 3-5 (if you don't go into eating frenzies) chomping on negative calorie food is helpful too --carrots, apples, gum, ..you could go surfing... then you'll have brain freeze
Member Since: July 18, 2007 Posts: 30 Comments: 26536
566. Orcasystems
2:33 PM GMT on November 19, 2008
Quoting stillwaiting:
way to go orca!!!!,should give you more energy(not right away) and a little extra cash in your pocket...WAY TO GO!!!!


Its going to be interesting... the wife has not quit...
Member Since: October 1, 2007 Posts: 81 Comments: 26512
565. surfmom
2:32 PM GMT on November 19, 2008
Great Stillwaiting - just give me a heads-up...I'll drop off eggs today anyway --
Member Since: July 18, 2007 Posts: 30 Comments: 26536
564. TampaSpin
2:31 PM GMT on November 19, 2008
Quoting Orcasystems:


Actually its not to bad.. I am on drugs(Zyban) and as long as I keep myself occupied, its ok. Makes it hard to sit on the puter, I have the automatic reaction of pouring a coffee and lighting a smoke.

Since I have not been on much... Surfmom, Beachfoxx and RTLSNK and been having a party on my Blog. They have been picking on me, and they trashed my halo :(



Ya i was privately told about that.....i decided to be a good boy and not pick on you since everyone else was doing a well above average job.....ROFLMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
563. stillwaiting
2:29 PM GMT on November 19, 2008
way to go orca!!!!,should give you more energy(not right away) and a little extra cash in your pocket...WAY TO GO!!!!
Member Since: October 5, 2007 Posts: 20 Comments: 4970
562. TampaSpin
2:28 PM GMT on November 19, 2008
Quoting Orcasystems:
Day 4 of not smoking.. things are going well.. anyone have anything that needs to be killed? I would appear to be in the mood.

Complete Blog Refresh
Mirror Site (New Format)


The hardest thing for you is control a diet as your loosing that nasty habit......you can do it .......just excerise more and eat more...it makes you feel good about everything then..
Member Since: September 2, 2007 Posts: 179 Comments: 20448
561. stillwaiting
2:27 PM GMT on November 19, 2008
Quoting surfmom:
Going to be passing through the key at some point today, howz 'bout you put a little out by your door & I'll drop off some fresh eggs -- It's certainly cool enough that we don't have to worry about spoilage LOL



deal!!!,but they won't be ready for about 2 weeks still "growin" and I'm stillwaiting..lol,I'll let you know when there ripe!!!
Member Since: October 5, 2007 Posts: 20 Comments: 4970
560. Orcasystems
2:27 PM GMT on November 19, 2008
Quoting TampaSpin:
Orca i hear your kickin it....Congrats to you my friend. You really need to do so.


Actually its not to bad.. I am on drugs(Zyban) and as long as I keep myself occupied, its ok. Makes it hard to sit on the puter, I have the automatic reaction of pouring a coffee and lighting a smoke.

Since I have not been on much... Surfmom, Beachfoxx and RTLSNK and been having a party on my Blog. They have been picking on me, and they trashed my halo :(

Member Since: October 1, 2007 Posts: 81 Comments: 26512
559. RobDaHood
2:25 PM GMT on November 19, 2008
557. Orcasystems

Congrats Orca! It's a really tough thing to do, but I've a feeling your stubborn enough to pull it off. Hang in there.
Member Since: September 2, 2008 Posts: 101 Comments: 33339
558. TampaSpin
2:22 PM GMT on November 19, 2008
Orca i hear your kickin it....Congrats to you my friend. You really need to do so.
Member Since: September 2, 2007 Posts: 179 Comments: 20448
557. Orcasystems
2:21 PM GMT on November 19, 2008
Day 4 of not smoking.. things are going well.. anyone have anything that needs to be killed? I would appear to be in the mood.

Complete Blog Refresh
Mirror Site (New Format)
Member Since: October 1, 2007 Posts: 81 Comments: 26512
556. TampaSpin
2:21 PM GMT on November 19, 2008
I did update my blog late last nite if anyone would like to review!
Member Since: September 2, 2007 Posts: 179 Comments: 20448
555. surfmom
2:21 PM GMT on November 19, 2008
Wanna be a Polar Bear - Go Surf today! SWFL/Gomex surf update: Knee to thigh high today. Friday some waves as the front will bring 2ftrs from the North - should be Clean Swell - Saturday -flat then back to the 70's.... Gomex water temp in Clearwater 63, SRQ 65 -- so if you get wet..the water is going to bite. The Carib is Going off --BIG swell Thursday -going off for the weekend w/ min 6ftrs.
Member Since: July 18, 2007 Posts: 30 Comments: 26536
554. TampaSpin
2:20 PM GMT on November 19, 2008
Quoting surfmom:
.... LOL Tampa - so you think the neoprene is cheating????


Hey, hey that is cheating....bet the shower would be colder......LMAO
Member Since: September 2, 2007 Posts: 179 Comments: 20448
553. RobDaHood
2:19 PM GMT on November 19, 2008
Quoting surfmom:
Happily, as Rob mentioned, the SUN is still quite strong -- makes the 60 not so bad --- unless the winds pick up


Just went outside to warm-up GF's car for her (I'm such a nice guy) sun is really warm. East side of house (sheltered from wind) is actually comfortable...West side (shaded and wind off lake) not so much.
Member Since: September 2, 2008 Posts: 101 Comments: 33339
552. TampaSpin
2:15 PM GMT on November 19, 2008
I would like to encourage everyone that can to purchase a Food store gift card and give it to some family for Thanksgiving. It is what Thanksgiving is about.....

Member Since: September 2, 2007 Posts: 179 Comments: 20448

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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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