2021 Arizona wildfire season

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KB7MIB

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A "Go!" order has just been issued for Top Of The World in reference to the Telegraph Fire this morning.

US 60 is closed between Superior and Top Of The World.
SR 77 is closed from Globe to Winkelman.
SR 177 is closed from Superior to Winkelman.
US 70 from Globe to Fort Thomas is open to light traffic only, no semi's.

John
Peoria
 

es93546

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Anyone know if TNF has remote receivers on any of their repeaters?

I've never heard of the USFS utilizing these. In my experience on one national forest in California, small (contained in ammo cans) "extenders' were used in areas of wilderness where coverage was marginal or didn't exist. These were put in when trail and other types of crews were going to work on a large and several week long project in one of those areas. A simplex frequency was used that when it was received by the extender, the input frequency and tone of the nearest permanent mountain top repeater was transmitted. When the output frequency of that repeater was received it would pass that along on the simplex frequency. We had a very innovative radio tech, who put these extenders together using surplus radios he didn't turn in when the newer radios replaced them. He somehow got some of those flexible solar panels, some batteries and other materials from federal agency surplus yards. An extender was small enough that a person could put the whole installation in a backpack, climb the appropriate peak and set it all up. It included a VHF High antenna, a short antenna mast and all the coax and data/power cables. There were simplex instructions such as "place connector B to jack B on Box 2 . . . . . "

I've been retired from the USFS for 20 years and some things have likely changed. However, satellite receivers require linking, computers for voting and power systems. That would be very expensive and difficult to install in mountainous topography. I've only heard of satellite receivers being used in urban areas. If an area needs a satellite receiver, then the USFS would likely put another repeater.
 

es93546

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A "Go!" order has just been issued for Top Of The World in reference to the Telegraph Fire this morning.

US 60 is closed between Superior and Top Of The World.
SR 77 is closed from Globe to Winkelman.
SR 177 is closed from Superior to Winkelman.
US 70 from Globe to Fort Thomas is open to light traffic only, no semi's.

John
Peoria

That closure largely matches the public safety entry closure issued for the Tonto National Forest for this fire. It looks like it will have to be modified as the fire has moved northeast further toward Globe/Miami sometime today.

The information about this fire available on InciWeb includes observations of extreme fire behavior. That statement should be taken in context. That being that fires are now beginning to present unprecedented fire behavior. This is not your father's observations of extreme, this is something entirely different. In California last year some unthinkable things occurred.
 

Foresigt

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Just thought there may have been a possibility for NF or BLM to use the State microwave system for remote tac receivers. Any idea what the gain is on the mountain top repeater antennas?

It's not quite as easy to set up something temporary when it comes to microwave as you may think. As for the mountain top repeater antennas, it depends on what kind of antennas. It's also about more than the gain on them. You can't put on antenna from your house on a mountaintop and expect better performance. It can actually be worse.
 

AZDon

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It's not quite as easy to set up something temporary when it comes to microwave as you may think. As for the mountain top repeater antennas, it depends on what kind of antennas. It's also about more than the gain on them. You can't put on antenna from your house on a mountaintop and expect better performance. It can actually be worse.

I designed wide area multi state systems to.Just wondered what the gain was on some of the sites, low if any figuring where your 1/2 wave power point is. As for the microwave, I am well aware of their limits, never said anything about temporary microwave sites. You are reading to much into my inquiries. Just thought maybe you knew. Disregard.
 

es93546

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Just thought there may have been a possibility for NF or BLM to use the State microwave system for remote tac receivers. Any idea what the gain is on the mountain top repeater antennas?

The federal wildland fire agencies do not monitor tac frequencies from any base stations. They are strictly mobile/handheld to mobile/handheld channels only. Incidents are divided into geographical units, divisions and branches. One criteria for a division is that handheld to handheld communications is possible for all resources assigned to that division. If topography does not allow that then another division is established. An area that has topography that blocks simplex communications is too large for a division supervisor to handle. A base station does not need to receive or transmit on tac frequencies. That is what command nets are for. On large fires a command net is established using the NIFC system. One or more portable repeaters are set up and the Incident Command Post can transmit/receive on all the repeaters on this net. Dispatch centers are not connected to this net. If some command personnel need to communicate with the dispatch center they do so on NF and BLM district nets. Those dispatch centers are nearly overwhelmed with work ordering all the resources the incident is generating. Prior to being overwhelmed they begin a process to set up what is called "Expanded Dispatch," which is a larger organization than the dispatch center usually has. Outside personnel are brought in so that tasks can be split up among several people. Expanded dispatch has its own structure based on the type, size and complexity of the incident. Most ordering is done by computer using ROSS (Resource Ordering and Status System) software. If there isn't cell phone/internet coverage at the ICP then this has to be done by radio. In California the USFS set up Service Nets for that. However, cell phone/internet service is usually a major factor for selecting the location of ICP's. If it is lacking at an ICP site then radio techs set up satellite links for both. ICP location is a part of fire management planning. Coordination with school campuses, regional parks and other suitable areas is done annually. ICP locations out on national forest and BLM lands are identified in plans. These locations are picked given the transportation system, water supply, communications capabilities, sleeping areas, dining areas, command trailer areas, etc. When an incident is getting past initial attack, longer term and more complex command people usually have these areas in their heads. This often gets handled by National Forest Fire Management Officers, their staff or BLM District FMO's and staff so the ranger district and field office fire management can take care of the immediate situation.

There is a huge amount of work done that no one sees unless they are in the offices of these agencies. I was the frontcountry recreation supervisor on a very heavily visited ranger district that had a major fire. It started on August 20th, in the peak of summer visitation. I had a pretty good level of ICS qualifications and experience so I had a large workload during the whole thing. It took the focus of nearly every person on ranger district for nearly 6 weeks. The first 2-3 weeks of that was a 7 days a week, 12 or more hours per day effort. For me it was all about people management, which got complicated due to a large area of closure that we maintained until the first major snowstorm. The district received a group performance award for recognition, which unlike most performance awards, did not come with any extra compensation. Many of us had overtime, but the level of exhaustion was immense, both physically and mentally. Once the snow fell, I took a 2 week vacation across southern Arizona and California, camping/hiking/sightseeing and doing some maintenance on a family second home property.

As for using state microwave sites, realize there are far more USFS and BLM repeater sites than state microwave sites. Often times the USFS and BLM have repeaters and/or remote bases located at those locations where the state microwave system has equipment.

It seems like you have an urban perspective of communications. Rural and federal public land management agency communications have a number of differences. Emergency incidents have a well known structure, that is how all of us work together. Communication channels and systems are there to meet the needs of the incidents. These systems don't need any additional assistance to function.
 

AZDon

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My perspective is urban but one system can span several states. As I mentioned before, we could deploy a system anywhere in hours with the use of a few portable 45w portable repeaters a few small ACU units and cell or sat phones. But 90% of the time we were on an urban mission. Some of the feds, not us, jump on state microwave systems all over the country. Receivers, yes expensive but in major cities talk out wasn’t the problem, high noise levels at our repeater sites were. Years ago we were testing the noise level on top of the World Trade Center in NYC. It was so bad we couldn’t access the repeater on the roof with a portable radio. We never did an install there and were lucky to find a couple of other good repeaters sites in Manhattan. Yes, let’s agree we had different missions.
 

clover509

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Have N261GB (air attack), N196LA (SEAT as 'Tanker-820'), N187LA (SEAT as 'Tanker-810') and N614HH (helicopter as 'Four-Hotel-Hotel) working north of Lake Pleasant on the now-named 'Gold' fire.

Comms so far:
134.1750 MHz - AZ 07 zone air-to-air secondary (This frequency is also listed as a point of contact in the FAA TFR for this incident)
167.1750 MHz - AZ 07 zone air-to-ground primary
172.5250 MHz, PL 100.0 - Phoenix District BLM repeater
 
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nebarnix

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Since the backbone fire I am hearing a lot of the air-to-ground coordination on 168.650 and nothing at all on the aforementioned frequencies.
 

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es93546

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The latest measurements of 1000 Hour Fuels (3-8" size):

June 21 Thousand Hour Fuels.png

Note the lack of green on this fuel moisture map that is west of the 100th meridian. If and when AZ and NM gets some rain to ease fire conditions, the remainder of the west will likely face some hazardous fire conditions.

The actual fire danger for Sunday, June 20, 2021:

June 20 Actual Fire Danger.png

These are some very serious conditions for Arizona. We need the monsoon to arrive on time and it needs to be consistent. It has not been so for a few years. I hope everyone out on the land during these conditions behaves appropriately. These are "tinderbox" conditions.
 

radioprescott

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*PNF-1008: Tiger*
11 miles E of Crown King
Discovered: 6/30/2021: Acres Burned: 11,987
continues active on the north and west perimeters
Not much traffic today: waiting for it to burn north out of the wilderness so they can resume direct attack.

AG PRI 165.3875
AG SEC 172.5500
AA PRI 118.9250
AA SEC 123.6250

CMD RPT 170.4500
CMD RPT 169.5375
CMD RPT 170.0125
(All CMD RPT linked)

PNF FIRE NET 173.925
PNF ADMIN NET 170.4625

and the usual FS Cache TACS
 
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