Jul 11

There are three main types of flood warnings issued by the NWS:

Flash flooding – a flood that occurs within 6 hours of excessive rainfall and that poses a threat to life and/or property. Ice jams and dam failures can also cause flash floods.

River flooding – any high water flow, overflow, or inundation event which is threatening lives and property along main stem rivers.

Areal flooding – any high water flow, overflow, or inundation in a defined area such as a group of counties or an area along a river or stream which threaten lives and property that is not covered by an river flood, or flash flooding. The main difference between flash floods and areal floods is that areal flooding applies to longer duration precipitation, (greater than six hours), causing slow rises on rivers and streams.

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Jul 9

Effective immediately, Joe Bruno W5AUQ is appointed as EC for Guadalupe county in District 12.  Joe replaces Joe Thompson W4CTH who became a silent key July 7th.  Joe Thompson was a terrific EC and all around ham and will be missed…

Our thanks to Joe Bruno for reassuming the EC slot.

Tom Whiteside, N5TW
ARRL South Texas Section Emergency Coordinator

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Jul 9

South Central Texas Partners…

The National Weather Service Austin-San Antonio TX office is now officially on Twitter.  Our first official tweet came out this morning, Monday, July 9th.  Like anything new we will have some growing pains as we take on this social media giant.

Follow us @NWSSanAntonio

As of right now our Twitter page is not set up to be a “warning” tool.  That may change in the future…but as of right now we will be placing graphics, outlooks, and links that you will hopefully find interesting and useful.  We are also looking to  utilize twitter for getting storm reports, damage pix, etc.

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Nov 13

Title: 13th Annual Skywarn Recognition Day
Location: Austin/San Antonio National Weather Service Office – New Braunfels Airport
Description: The Austin/San Antonio National Weather Service Office will be participating in the 2011 Skywarn Recognition Day, which will occur from 1800hrs 2 December 2011 to 1800hrs 3 December 2011.

Our station will again be operating for the entire 24 hours time period, utilizing 2m, 440, multiple HF bands, as well as Echolink and IRLP contacts.

This is the 13th year for the program, and I believe will be the 9th year this station has participated. Each year, our station, thanks to the dedication and perseverance of many dedicated hams from throughout the South Central Texas area, has improved on its contact status, and rating in the Skywarn Recognition Day program.

All Licensed Amateur Radio Operators are invited to participate in this fun event.  Yes, Technician class licensees are encouraged to participate, as we do utilize 2m, 440 and the digital modes!

We schedule operators in 2 hours blocks of time, with a maximum of 3 operators per block! Of course, if you choose to, you may request scheduling for multiple blocks, either consecutive or broken. Such as one evening shift and one early morning shift.

Due to limited security, space, and the fact the NWS staff is still operating, we can only have 3 operators, and try to keep the noise level to a minimum. Although, many members of the staff enjoy hearing the goings on, when things are not busy on their end. We have had severe weather events occur, during the SRD.

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Sep 13

King Kong portable antenna by K5NNN AndrewKING KONG DUAL BAND ANTENNA 2 METER & 70 CM

This Antenna comes in Dual Band  2 meter &  70 cm..
or just single band for 2 meter or just 70 cm.
We also make them for 220 mHz

FACTS

1.     WATER PROOF
2.     MADE OF 450 PSI   PVC PIPE
3.    OMNI – DIRECTIONAL
4.     6 dbi  on VHF,   8 dbi or better on UHF
5.     V.S.W.R.  1.2 and no higher than 1.8
6.    POWER  150 Watts
7.    VERTICAL  OMNI  With no radials
8.    LENGTH   72 Inches
9.    WIND SPEED  150 +
10.  Screw Hook in top for easy suspension / hanging
11.   Standard SO-239 Chassis Connector (coax not included)

COST $45. FOR SINGLE BAND – VHF, UHF,  or 220 mHz

COST $65. FOR DUAL BAND VHF AND UHF

If you would like one call Andrew K5NNN on his cell  210-422-5304

See more pics below.. Read the rest of this entry »

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Aug 31

“National Guard Helicopters drop supplies to support towns completely cut off due to Hurricane Irene” “No power, phone or roads to towns hard hit by Hurricane Irene”

I’m sure you’ve seen the videos of cars being swept down swollen rivers in Vermont. Who would have ever thought that a coastal hurricane would dump so much water over land-locked Vermont to cause such devastation! This reminds me of the time back in the late 1990’s when I was dropped along with supplies in to a town in upstate New York to supply emergency communications during the North East Ice Storm. It’s just another reminder that emergency communications teams must be prepared for any event. This is also a glaring reminder that we need well-trained “Jump Teams” in every area to assist with emergency communications support. EVERY local emergency communications group needs to have a Jump Team on hand to help cope with this type of disaster. Just as it happened in Vermont, it could happen in Texas. Towns being cut off. No power. No communications.

 If you don’t know how to start a Jump Team, or what your team would need, just go to this website for information and support: http://www.texasmars.com/

 Bob W2IK

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Jun 7
   With the start of Summer, June 1st marks the beginning of “Hurricane Season”. It’s been predicted to be a very active period. We hope a hurricane doesn’t strike our area, but we must be ready in case it does.Many newly licensed hams have joined the amateur radio ranks just in time to become useful communicators should an emergency caused by severe weather arise. There is always a need for trained emergency communications personnel, but this is especially true in the areas which are more likely to be impacted by a hurricane, those regions being the Atlantic and Gulf Coast areas. However, it takes more than just a license and a hand-held radio to make you a useful part of emergency communications. It also takes preparation, training and practice.

Preparation requires each communicator to develop a cache of supplies to help them in fulfilling their communications duties.

There are various websites you can rely on as basic lists in building your “go bag” of supplies. I realize that most of you are on limited budgets regarding the purchase of additional rigs or other related equipment, so improve on what you have with the addition of a better antenna system and upgraded power sources. Keep in mind that you won’t be able to “run home” to get something you’ve forgotten.

There are NO second chances with emergency communications during a hurricane.

 Reminders –

If by choice or by wallet your only rig is an HT: The battery pack that came with your HT is NOT enough during a deployment. Make sure you have additional power in the form of extra batteries and a power supply. You should have enough “portable power” to last for at least 4 days of operation.
 
The “rubber duck” antenna that came with your HT won’t do much good during an emergency. In terms of Effective Radiated Power (ERP) a 5 watt HT with it’s standard rubber duck antenna at shoulder height actually radiates only 1.5 watts ERP. (The stock antenna that came with your HT is what’s known as a “negative gain antenna”) Clipping the same HT on your belt would attenuate the signal an additional 20 db, meaning the ERP would only be about 15 MILLIWATTS!  This is why you need a “gain” antenna at a decent height for emergency communications deployment. You should have a 17 inch flexible whip antenna and at the very least a roll-up “J Pole” antenna with coax. If you are really serious, you’ll need an emergency VHF antenna.  This is a very light weight, portable antenna that is packaged in a 48 inch tube yet deploys to a height of over 16 feet. It is easy to build. It exhibits gain. It can be used with an HT to greatly expand it’s range and can also be used with a mobile rig for indoor or outdoor use.
  
MAPS, MAPS, MAPS.
 
Always document what you do. Keep accurate notes and communications, marking times of each. This will help in reviewing later.
 
You’ll also need to refresh yourself on the basics of emergency communications. The better armed you are with information and the basic proper gear, the better you’ll be able to do your communications task.

Time to test and inspect all your equipment. Replace weak re-chargable batteries and check out all cables for wear or fraying. Make some test transmissions to see how well your equipment will “hit” the various local repeaters that are used during emergencies and put them in your radio’s memory bank. Perhaps it’s time to buy that deep-cycle marine battery as you might need it to power your mobile rig indoors during a power failure. (Don’t forget that emergency VHF antenna system as mentioned above)

Hopefully you are a member of some emergency communications group in your area. Time to attend meetings and on-air lessons in earnest. Ask questions no matter how trivial you think they are because others will probably benefit from the answers. If your group is smart, they’ll have a small drill or two. Keep your group updated on any new gear (radios, antennas, etc) which would make your deployment more valuable to your team.

Keep on your toes when a developing storm starts it’s march across the Atlantic. Follow the path and look at projected paths at: WEATHER UNDERGROUND website. It’s a good source of info during hurricane season.

PREPARE your family for the hurricane season.  Train your family members and build a “home bag” so they won’t have to do without should severe weather occur in your area.

Make sure that if a hurricane is within 300 miles of your home that you keep all your vehicles’ gas tanks “topped off” and buy extra, extra batteries for any flashlights used by your family. At the same time, be sure to monitor your EmComm group’s repeater frequency for updates or possible “call outs”. Make sure that you also have “wide-range” repeater frequencies in you rig’s memory. If you have a General or above license, try to have a working, portable HF station which also includes an NVIS antenna system for reliable short-range HF communications.

Keep every battery charged and have all equipment gathered and ready.

Be an active member in your EmComm groups activities so you can all be “on the same page”. Hopefully, your emergency communications group has in place an honest, comprehensive emergency plan for it’s operators and has trained it’s members with something more than “table-top” drills. FIELD DAY IS NOT ENOUGH.

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Dec 10

An amateur radio operator from Australia, VK4ION, recently posted on her website a story about reading W2IK’s Emergency NVIS antenna construction plans and with some adaptation building her own portable ENVIS antenna system for emergency communications. Her website, VK4ION Emergency N.V.I.S. antenna, shows in detail, with many pictures, her construction of this antenna along with NVIS theories on how low antennas are perfect for local (under 400 mile) emergency communications. A photo of her ENVIS antenna is shown below.

Her report included comments such as when it was used during their “field day” operation it was the “hit of the show”. On her website is also a link to W2IK’s 4 part website on building the original antenna including the adapter for 80 meter and MARS operation. This antenna is the only NVIS antenna posted in the NAVMC MARS websites.

Bob W2IK

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Nov 23

Due to lack of response, W2IK and the Bexar Operators Group (W5BOG) have decided to cancel the 2011 Jump Team Boot Camp  for emergency communicators. It takes a great deal of lead time and planning to run this program, reserve the wildlife refuge area, line up the two Army survival specialists, check out several tons of jump team gear, etc. With no inquiries, usually by now the reservation list would be almost full, we can only assume no one feels this training is needed so we will also retire from offering it in the future.

Bob  W2IK

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Nov 19

2010 National Weather Service
Skywarn Recognition Day
December 4, 2009 (Friday Night – Saturday)
0000-2400
UTC

SKYWARN Recognition Day was developed in 1999 by the National Weather Service and the American Radio Relay League. It celebrates the contributions that volunteer SKYWARN radio operators make to the National Weather Service. During the day SKYWARN operators visit NWS offices and contact other radio operators across the world.

The National Weather Service Austin-San Antonio will again be a part of this year’s Skywarn Recognition Day event. If you wish to be a part of the Austin-San Antonio effort, contact Louis Upton – K5STX who will be spearheading the schedule.  Please contact him at: k5stx@arrl.net

In other areas of the country, check with your local National Weather Service office to see if they are participating in this event or having an “open house”. It is not a contest, but rather an operating event. Amateur radio operators will be on the air from National Weather Service offices and from their home stations as well. Depending upon how many NWS stations a ham operator contacts they will be given certificates of varying levels.
Skywarn Recognition Cert from 2006
The certificate (shown to the left) was given to W2IK in 2006 for contacting over 40 different NWS stations all across the US. Be a part of this fun event by either visiting your local NWS or by making contacts with as many stations as you can.

For updated information concerning this event, just go to:

http://www.crh.noaa.gov/hamradio/

At this site, you can get a list of participating NWS offices, their call signs, and other useful information. Check this site often as additional participating offices will be listed as the day approaches. I hope you’ll join in on the fun and learn more about the National Weather Service and the function Skywarn plays in keeping the country safe during severe weather conditions.

Last year, we made 360 contacts from our site which was a major increase from previous years. This year, we want to break that record. Contact Louis to join us or go on the air from your home station to work us.

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