U Turn Wind Profile:Aspen Fire
Posted: Sun Jun 22, 2003 3:13 pm
Oro Valley,AZ 22JUN03 12:25PDT
Dear Freinds,
As you may know,of all the Good Members of this Cyber Community,I am closest by Geography and Miles to the disaterous Aspen ..now pegged 'AZ Wildfire'.I have a perfect view/vantage point at any time day or night to observe the movements and behaviours of this monster.I am not as well trained as Dennis or the Kahuna in this arena..however,I have made it my business to learn as much as possible very quickly from these Board Mentors.local fire officials accross the street at the El conquisatador resort as well as the myraid of resources available.I then use my head,spirit,experience as a Storm Chaser and ultimately,my Gut to assertain the best scenarios..given the fact also that I am FULLY aware that Ma Nature does and will continue to be unpredictable,unrelenting,unforgiving and will reclaim what has been laid waste or overgorwn by irresponsible and ill concieved agenda and policy.
Let me be clear..what I am progging is NOT official in any capacity.It is soley an opinion,as so little information is coming in from the Firelines.
Here is what has transpired from my vantage point in NE Oro Valley at the W base of the Santa Catalina Mountians..about 24nm SSW as the Baron flies of the main Fire area.I am literaly nudged up to the Mountain,at Pusch Ridge.
At 19:00hrs last night,the winds were backing off as Sat saw sustained 25kt winds to W and SW.Then suddenly,at 03:00hrs this morning,the winds built up to 30kt from ESE and backed off by 04:30.VERY ODD!It seems the fireline caught a break to fight it down ,hence the incredible 5% Containment figure ..notwithstanding nearly 9,000 acres are involved.
Kudos Firefighters!However,at 0:7:40hrs I clocked a gust well past 25kt here in OV.Very unusual,as they slacked to ZERO by 10:30.I am a sailor,open ocean for 40 yrs...I have seen and witnessed strange wind patterns over the Pacific..but on land this is strange.It is as if the fire is creating a path to which it is comfortable via the wind tunnels of the ridges,canyons and deep gultches of the backside of the North Catalina.
The smoke has been 'flat' for 3 days..capped if you will below 17,000ft with prevailing SSW winds carrying smoke and ash toward Dennis 150+nm from here.Here is the catch.Temps are reasonable,in the upper+90s..coolish for a June in Tucson where 102+ is avg and 112-114+ is not unusual.Zero RA is also the mark of June until the July 'Soon.We need a heat blast to sustain an onset of the 'Soon and 105+ is minimal to expect.The CONUS pattern has been 'stuck' with Hvy Fla Rains..Sev wx in the Plains to Montana...Unsettled in the PacNW..a jet flow reminisent of May or April has NYC/BOX etc cut off with a ULL keeping them chilly,wet and nasty.This 'Locked' in a ULL near Las Vegas to SLC which dominated our Wx with high winds on the return flow...just opposite of what we need for a mex inflow with the familiar '4 Corners Hi' scenario vs a counter rotating ULL.Basically,the Jet is WAY too far south for this time of year..carrying GOA ULLs down the Oregon Coast and ejecting into the Great Basin..also the Subtroppy winds over Mexico are still prevailing East to NE up to the GOMEX and creating trstms over the N GOMEX SW of Louisiana.NOT condusive to EPAC 'Canes or our Monsoon..as tops of storms are supressed to far south..and those forming are blown off at 30K feet..the Jet alt.
This leaves SEAZ in a Vaccum void of moisture,and allowing winds to regap the pressure gradient.The orographic lift is zero except when a Wildfire is present!It creates an inflow not unlike a tiny hurricane.It 'eats' fuel..not just trees,it wants Oxygen!If it can find it..it will suck it in and then the explosion with dry air as opposed to a cane flowing inward.It is a Micro Micro MicroWx Phenom..yes Firewx!
Let's continue.The 'locked' pattern has allowed the Fire to dance along as if it had endless energy,as if a Golfer hit a line drive with his 'Big dawg' Driver.Distance and Power.Now,I see something different.The ball is now being 'Topped' by a lifted driver.This allows the Golfball of fire to go down a gulch and hide...hot and dangerous.Now..the short game.Take out the 7iron the Wedge by tonight,as winds are now Slack to Zero.The ball(fire) is now lifted stright up and out of the Sand trap and shanked to the right.
Once it catches the winds aloft above the tree line,an 'out of bounds' Spot Fire emerges and bounces off the trees to who knows where.It sits.It's hot.
The winds emerge Monday,as multidirectional..Light and Variable.By Afternoon..we'll have a powderkeg of fresh fuel for the monster to eat.It turns..possibly a 45deg turn,as firelines must react quickly it is tricky and dam dangeorus.Monday seems the day...to contain to 10% of lose it again IMHO.Let's watch the Wx Pattern change this week..as possible LTG comes back to haunt us in SE AZ..DRY LTG.If we do see this materialize..double the amount of fires in the State.I shudder to think.Lets all hope I am wrong.I do.
Thank you all for your prayers,thoughts and concern.We'll be ok...Fla has major FF problems and I pray for you all as well.We're all in this Wx thing together.
~Be Well and Safe~
DJ
Temp 93F/rh 10%/winds slack/Sun/haze
http://kvoa.com/weather/wxcam.html
Dear Freinds,
As you may know,of all the Good Members of this Cyber Community,I am closest by Geography and Miles to the disaterous Aspen ..now pegged 'AZ Wildfire'.I have a perfect view/vantage point at any time day or night to observe the movements and behaviours of this monster.I am not as well trained as Dennis or the Kahuna in this arena..however,I have made it my business to learn as much as possible very quickly from these Board Mentors.local fire officials accross the street at the El conquisatador resort as well as the myraid of resources available.I then use my head,spirit,experience as a Storm Chaser and ultimately,my Gut to assertain the best scenarios..given the fact also that I am FULLY aware that Ma Nature does and will continue to be unpredictable,unrelenting,unforgiving and will reclaim what has been laid waste or overgorwn by irresponsible and ill concieved agenda and policy.
Let me be clear..what I am progging is NOT official in any capacity.It is soley an opinion,as so little information is coming in from the Firelines.
Here is what has transpired from my vantage point in NE Oro Valley at the W base of the Santa Catalina Mountians..about 24nm SSW as the Baron flies of the main Fire area.I am literaly nudged up to the Mountain,at Pusch Ridge.
At 19:00hrs last night,the winds were backing off as Sat saw sustained 25kt winds to W and SW.Then suddenly,at 03:00hrs this morning,the winds built up to 30kt from ESE and backed off by 04:30.VERY ODD!It seems the fireline caught a break to fight it down ,hence the incredible 5% Containment figure ..notwithstanding nearly 9,000 acres are involved.
Kudos Firefighters!However,at 0:7:40hrs I clocked a gust well past 25kt here in OV.Very unusual,as they slacked to ZERO by 10:30.I am a sailor,open ocean for 40 yrs...I have seen and witnessed strange wind patterns over the Pacific..but on land this is strange.It is as if the fire is creating a path to which it is comfortable via the wind tunnels of the ridges,canyons and deep gultches of the backside of the North Catalina.
The smoke has been 'flat' for 3 days..capped if you will below 17,000ft with prevailing SSW winds carrying smoke and ash toward Dennis 150+nm from here.Here is the catch.Temps are reasonable,in the upper+90s..coolish for a June in Tucson where 102+ is avg and 112-114+ is not unusual.Zero RA is also the mark of June until the July 'Soon.We need a heat blast to sustain an onset of the 'Soon and 105+ is minimal to expect.The CONUS pattern has been 'stuck' with Hvy Fla Rains..Sev wx in the Plains to Montana...Unsettled in the PacNW..a jet flow reminisent of May or April has NYC/BOX etc cut off with a ULL keeping them chilly,wet and nasty.This 'Locked' in a ULL near Las Vegas to SLC which dominated our Wx with high winds on the return flow...just opposite of what we need for a mex inflow with the familiar '4 Corners Hi' scenario vs a counter rotating ULL.Basically,the Jet is WAY too far south for this time of year..carrying GOA ULLs down the Oregon Coast and ejecting into the Great Basin..also the Subtroppy winds over Mexico are still prevailing East to NE up to the GOMEX and creating trstms over the N GOMEX SW of Louisiana.NOT condusive to EPAC 'Canes or our Monsoon..as tops of storms are supressed to far south..and those forming are blown off at 30K feet..the Jet alt.
This leaves SEAZ in a Vaccum void of moisture,and allowing winds to regap the pressure gradient.The orographic lift is zero except when a Wildfire is present!It creates an inflow not unlike a tiny hurricane.It 'eats' fuel..not just trees,it wants Oxygen!If it can find it..it will suck it in and then the explosion with dry air as opposed to a cane flowing inward.It is a Micro Micro MicroWx Phenom..yes Firewx!
Let's continue.The 'locked' pattern has allowed the Fire to dance along as if it had endless energy,as if a Golfer hit a line drive with his 'Big dawg' Driver.Distance and Power.Now,I see something different.The ball is now being 'Topped' by a lifted driver.This allows the Golfball of fire to go down a gulch and hide...hot and dangerous.Now..the short game.Take out the 7iron the Wedge by tonight,as winds are now Slack to Zero.The ball(fire) is now lifted stright up and out of the Sand trap and shanked to the right.
Once it catches the winds aloft above the tree line,an 'out of bounds' Spot Fire emerges and bounces off the trees to who knows where.It sits.It's hot.
The winds emerge Monday,as multidirectional..Light and Variable.By Afternoon..we'll have a powderkeg of fresh fuel for the monster to eat.It turns..possibly a 45deg turn,as firelines must react quickly it is tricky and dam dangeorus.Monday seems the day...to contain to 10% of lose it again IMHO.Let's watch the Wx Pattern change this week..as possible LTG comes back to haunt us in SE AZ..DRY LTG.If we do see this materialize..double the amount of fires in the State.I shudder to think.Lets all hope I am wrong.I do.
Thank you all for your prayers,thoughts and concern.We'll be ok...Fla has major FF problems and I pray for you all as well.We're all in this Wx thing together.
~Be Well and Safe~
DJ
Temp 93F/rh 10%/winds slack/Sun/haze
http://kvoa.com/weather/wxcam.html