Home |
Search |
Today's Posts |
![]() |
|
ne.weather.moderated (US North East Weather) (ne.weather.moderated). A moderated forum for the discussion of US North-East related weather. |
Reply |
|
|
LinkBack | Thread Tools | Display Modes |
#12
![]() |
|||
|
|||
![]()
(Louis Gentile) wrote in message . com...
"Meteorologically Disturbed" wrote in message news:liV5d.125744$D%.14979@attbi_s51... Lou, While nicely written, Blue Hill's plea for help compares apples to oranges and overlooks several key facts. Firstly, your home "Davis" or whatever other station doesn't require much in the way of voltage and can survive many hours on batteries. The AWOS/ASOS network contains an integrated network of sensors and electronics, including several high voltage instruments (ceilometer for one), and most definitely cannot operate on battery backup. The exception of this is the barometer which is a standalone unit. Secondly, these surface observations don't forget are owned now by the FAA and are first and foremost for aviation use. If the airport itself is closed to traffic, then in all likelihood there's no reason to maintain the system during a failure. However, what's most likely the case is that many of the ASOS/AWOS were up and running and logging data internally just fine, but their dial out connectivity was severred. The same would apply to your home weather station. If you're running on battery power but have no way to transmit your observation, then the same problem applies. As for lightning, almost all of these stations DO have lightning sensors. A check of NLDN data across Florida showed no thunderstorm activity associated with the landfall of Jeanne. Given it's tropical nature, nighttime landfall, overall weak appearance, and lack of sustained 50 dBZ echoes, I wouldn't have expected lighthning anyways. The only thunderstorms I saw were yesterday afternoon just offshore of West Palm, more due to afternoon heating than anything. These were included in the PBI observations. "Louis Gentile" wrote in message m... discussion.txt Address:http://www.bluehill.org/discussion.txt Changed:2:43 PM on Friday, September 24, 2004 The site above is a reminder of the observations of yester-year when a much better description of weather was regularly available through the surface observations and the greatest care was taken to avoid the most trivial mistake. There were instances of updated forecasts due to data that the trained observer recorded that is not easily detected by satellite. I checked for observations from central and coastal Florida over the past 48 hours. No on site lightning detectors at the sites I checked. Equipment failure before wind gusts reach 60KT. My home weather station can do better than that and it runs for thirty hours after power failure - on triple A cells. Power blackouts - with no back-up generator. How much does it cost to repair or install a lightning detector? Is our government's debt so severe that we cannot even afford a workable system and have fallen behind some other nation's observation systems as a result? In the lower 48, plus Alaska, I have to go ten, twenty, and thirty years back into the logbooks in order to retrieve accurate and detailed surface observations, especially when studying events related to thunderstorm activity, nor'easters, blizzards and tropical cyclones. Regards, Lou -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) Just would like to add one comment. Back in my days the power interruption usually did not result in a total communications failure. The phones still worked. A very good point. Of course this isn't always the case with hurricanes, where the phones can fail due to such widespread network damage. At the same time, an ASOS/AWOS which is only connected by one data line can fail if that one line fails. I am not familiar enough with ASOS/AWOS communications and connections to readily comment on it any more than that. ===== Raymond C. Martin, Jr. Associate Meteorologist, AccuWeather Inc.- http://www.accuweather.com/ New Jersey Expressways and Tollways - http://www.njfreeways.com/ Ray's Winter Storm Archive - http://www.njfreeways.com/weather/ -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) |
#13
![]() |
|||
|
|||
![]()
(Smerby) wrote in message . com...
You could have not said it better. It is a joke how these stations malfunctioned in Florida. During Frances'landfall there were no surface obs coming in between Daytona Beach and West Palm Beach. That is a long stretch of real estate with no weather being reported, that kind of stuff happens in a third world country. That data was need to save peoples lives and property and some of the same stations went down in Jeanne, long before any hurricane force winds arrived. What really floored me was that the Punta Gorda site took a direct hit from Charley and stayed up, reporting critical wind speed data that was used to warn the people in Charley's path. Why would one site get blasted and stay on line when other sites go down with much less wind. What was the difference between the two reporting sites. Smerby www.accuweather.com A very valid point that I also don't understand. ===== Raymond C. Martin, Jr. Associate Meteorologist, AccuWeather Inc.- http://www.accuweather.com/ New Jersey Expressways and Tollways - http://www.njfreeways.com/ Ray's Winter Storm Archive - http://www.njfreeways.com/weather/ -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) |
#14
![]() |
|||
|
|||
![]()
"Meteorologically Disturbed" wrote in message news:BvV6d.147260$D%.2374@attbi_s51...
1.) Punta Gorda ASOS did not stay online. It was put out of commission subsequently after a 109 mph wind gust, some 10-15 minutes before the strongest winds hit (go back and note the time and surface pressure of that observation). Yes, but not until reporting the 109 mph wind gust. A majority of the stations which failed with Frances did not recieve anything near to that wind speed. So why did they fail? 2.) How would surface observations have saved lives and property, considering hurricane warnings had been out for 2 days. This is the most ridiculous nonsense I've read this week and it's only Thursday. Would the hurricane go "OH NO I'VE BEEN MEASURED!" and quickly weaken to prevent further damage? ![]() Surface observations save lives and property many times. They are instrumental in knowing how strong the winds are as they actually come onshore. It was due to, among other things, surface observations that NHC kept Jeanne a tropical storm until well north into Georgia, even though it had been on land for over 24 hours already and the radar signature had deteriorated significantly. If it wasn't for those surface observations, it would be much more difficult to know that strong gusty winds were coming northward through Georgia. What do you proprose as a solution? If you actually took the time to read the previous posts, you're realize that the obs are under FAA control now. When the airport is closed for commercial traffic, they simply don't give a hoot! Chalk one up for the ol' NWS here where you had dedicated meteorologists and a true passion for observations and climatology. Thank Uncle George W for that transition! So, instead of blasting at a poor, defenseless instrument array full of metal parts, why not contact the local airport representative(s) and ask them how their power feed and more importantly their COMMUNICATIONS feed are wired and why they failed in tropical storm force winds? Smerby did not mention the NWS as the blame for these ASOS problems. He just said it was a problem. Sorry, but Lou's posts seem for more up and up on the intelligence scale. And yours have just plumetted. Tell Uncle Joel and Aunt Barry I said hi! Papa Smurf Why don't you grow some balls and use your real name? Because it would reveal you were a former employee? Ah ha! ===== Raymond C. Martin, Jr. Associate Meteorologist, AccuWeather Inc.- http://www.accuweather.com/ New Jersey Expressways and Tollways - http://www.njfreeways.com/ Ray's Winter Storm Archive - http://www.njfreeways.com/weather/ -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) |
#15
![]() |
|||
|
|||
![]()
(Raymond C Martin Jr) wrote in message . com...
(Louis Gentile) wrote in message om... discussion.txt Address:http://www.bluehill.org/discussion.txt Changed:2:43 PM on Friday, September 24, 2004 The site above is a reminder of the observations of yester-year when a much better description of weather was regularly available through the surface observations and the greatest care was taken to avoid the most trivial mistake. There were instances of updated forecasts due to data that the trained observer recorded that is not easily detected by satellite. I checked for observations from central and coastal Florida over the past 48 hours. No on site lightning detectors at the sites I checked. Equipment failure before wind gusts reach 60KT. My home weather station can do better than that and it runs for thirty hours after power failure - on triple A cells. Power blackouts - with no back-up generator. How much does it cost to repair or install a lightning detector? Is our government's debt so severe that we cannot even afford a workable system and have fallen behind some other nation's observation systems as a result? In the lower 48, plus Alaska, I have to go ten, twenty, and thirty years back into the logbooks in order to retrieve accurate and detailed surface observations, especially when studying events related to thunderstorm activity, nor'easters, blizzards and tropical cyclones. Regards, Lou It is sad that the observations we had years ago are decreasingly accurate today. Hopefully one day things will be back to the standards they used to be. At the same time, we should probably remember the thing's we've gained: 1 - Many more reporting stations, often in rather remote locations. 2 - More reliable reporting schedules... an automated station isn't going to fall asleep or go home for breakfast... 3 - Increased accuracy in reports, including SLP, temperature, wind, ceiling (below 12,000 feet), and rainfall... Of course, there are some things that will take a while to improve, including: 1 - Snowfall and snow rate. 2 - True sky cover. 3 - Precipitation type. It will take some advancements in technology to get these items reported more accurately. One thing that is dissapointing is that at many airports that formerly had part-time observers, they are still there but just monitoring the system. The FAA has a rating system for airports based on observation quality: (from http://www.faa.gov/atpubs/SWO/appendix_d.htm ) ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++ Service Level D This level of service consists of an ASOS continually measuring the atmosphere at a point near the runway. The ASOS senses and measures the weather parameters listed below: - Wind - Visibility - Precipitation/Obstruction to vision - Cloud height and sky cover - Temperature and dewpoint - Altimeter - Freezing rain capability - Lightning reporting capability KSMQ, Someset Airport, Somerville, NJ is an example of Service Level D. ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++ Service Level C Service Level C consists of all the elements of Service Level D plus augmentation and backup of the system by a human observer or an air traffic control specialist on location nearby. The National Air Traffic Controllers Association (NATCA), the group representing the interests of the air traffic controllers, and the FAA have agreed that at this level of service, the air traffic control specialists are allowed the option of adding operationally significant remarks. Backup consists of inserting the correct value if the system malfunctions or is unrepresentative. Augmentation consists of adding the weather elements listed below, if observed. - Thunderstorms - Tornadoes - Hail - Virga - Volcanic ash - Tower visibility - Any reportable weather elements considered operationally significant by the observer During hours that the observing facility is closed, the site reverts to Service Level D. ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++ Service Level B Service Level B consists of all the elements of service levels C and D plus the elements listed below, if observed. - Longline RVR* at precedented sites (may be instantaneous readout) - Freezing drizzle versus freezing rain - Ice pellets - Snow depth and snow increasing rapidly remarks - Thunderstorm and lightning location remarks - Observed significant weather not at the station remarks ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++ Service Level A Service Level A consists of all the elements of service levels B, C and D plus the elements listed below, if observed. - 10 minute longline RVR* at precedented sites or additional visibility increments of 1/8, 1/16 and 0 - Sector visibility - Variable sky condition - Cloud layers above 12,000 feet and cloud types - Widespread dust, sand and other obscurations - Volcanic eruptions ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++ Much more information can be found he http://www.faa.gov/atpubs/SWO/index....0OF%20CONTENTS ===== Raymond C. Martin, Jr. Associate Meteorologist, AccuWeather Inc.- http://www.accuweather.com/ New Jersey Expressways and Tollways - http://www.njfreeways.com/ Ray's Winter Storm Archive - http://www.njfreeways.com/weath Thanks for the info and the site. I've already noticed some changes regarding coding: (c)**For BCFG (fog patches) to be coded, fog shall randomly cover part of the station, extend to at least 6*feet above the ground, with the apparent visibility in the fog patch or bank less than 5/8SM while visibility over other parts of the station is greater than or equal to 5/8SM Now the older one from 1999 as shown in the Aviation and Weather Services manual shows the following. BCFG or PRFG: used to indicate patchy fog or partial fog only if prevaiing visibility is 7 SM or greater. (no longer in use) This was not the only change that was made and I like to keep up with these changes. Thanks again for the site. Regards, Lou |
#16
![]() |
|||
|
|||
![]() Why don't you grow some balls and use your real name? Because it would reveal you were a former employee? Ah ha! LOL. So glad I did my weekly poll of this dribble. You couldn't be any farther from the truth. The tour of I was given of that sweat shop as a freshman some many years ago was enough to steer me and the rest of my colleagues away from that dump. Oh wait, was there a clue in that last sentence?! And then they unveiled the NEW building....such a move out of scattered small houses. Yes, for those of you unaware, AccuWeather was run for decades out of converted residences in State College. So...why not spend millions on a state-of-the-art facility instead of the personnel's wages? I mean it's the facility that makes the forecasts anyways, right?? Sorry, Ray. Only a fool with a C or less grade point average and a MUST HAVE desire to live in State College would succumb to the hours, wages, ethics, and poor benefits offered by said organization. State College is a GREAT town (one I'd personally rate in the top 10 in this country), but if you think I would give up six figures for $25-30K per year just to live in SCE, you have GOT to be kidding. My expertise isn't worth an hour of Joel's time. Did I hurt your feelings Ray? The statistics don't lie. It's a shame that you couldn't do better, you deserve it. So many have seen the light and left, why not follow suit? Of course that's getting off the topic and I have yet to see either one of you actually research the power/comms issues with the FL observation network during the hurricanes. Is that too much work? I already gave you several leads. I mean I know AccuWeather is heavily involved in research and all sarcasm. Such a large contingency at the AMS conference (LOL!!). Another Clue! Brainy Smurf -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) |
#17
![]() |
|||
|
|||
![]()
"Meteorologically Disturbed" wrote in message news:CrEad.220560$MQ5.176351@attbi_s52...
Why don't you grow some balls and use your real name? Because it would reveal you were a former employee? Ah ha! LOL. So glad I did my weekly poll of this dribble. You couldn't be any farther from the truth. The tour of I was given of that sweat shop as a freshman some many years ago was enough to steer me and the rest of my colleagues away from that dump. Oh wait, was there a clue in that last sentence?! And then they unveiled the NEW building....such a move out of scattered small houses. Yes, for those of you unaware, AccuWeather was run for decades out of converted residences in State College. So...why not spend millions on a state-of-the-art facility instead of the personnel's wages? I mean it's the facility that makes the forecasts anyways, right?? Sorry, Ray. Only a fool with a C or less grade point average and a MUST HAVE desire to live in State College would succumb to the hours, wages, ethics, and poor benefits offered by said organization. State College is a GREAT town (one I'd personally rate in the top 10 in this country), but if you think I would give up six figures for $25-30K per year just to live in SCE, you have GOT to be kidding. My expertise isn't worth an hour of Joel's time. Did I hurt your feelings Ray? The statistics don't lie. It's a shame that you couldn't do better, you deserve it. So many have seen the light and left, why not follow suit? Without a name or company affiliation, your post here is meaningless anonymous usenet drivel. Why don't you reveal yourself and your company affiliation? I showed this to one person who after reading it believed that you were a CURRENT AccuWeather employee. Of course that's getting off the topic and I have yet to see either one of you actually research the power/comms issues with the FL observation network during the hurricanes. Is that too much work? I already gave you several leads. You gave us your theories about communiction/power problems. However, I actually watch stations on a regular basis as well as check NCDC files from time to time. Your claim about communication problems appears baseless, because of the following: When an ASOS cannot transmit, it files the observation internally and appends it with FIBI. Such was the case in December, when KPNE could not send reports. All of those observations are now in the NCDC database. However, this is not the case with the Florida stations. As far as power problems, while that may be the case with some (and you completely ignored my arguments of why power should NOT be an issue, so I won't repost them again), again there are other stations where clearly instrument failure was a problem. How do you explain observations like these? METAR KORL 050853Z 04028G35KT 10SM RA SCT015 BKN021 OVC026 25/24 A2946 RMK PK WND 06039/0828 SLP978 P0009 60026 T02500244 56029 METAR KORL 050953Z 24/24 A2943 RMK RAEMM PRESFR SLP968 P0006 T02440239 PWINO $ METAR KORL 051053Z A2939 RMK SLPNO PWINO FZRANO $ METAR KORL 051153Z A2937 RMK SLPNO 6//// 7//// 56028 PWINO FZRANO $ Looks like instrument failure to me. ===== Raymond C. Martin, Jr. Associate Meteorologist, AccuWeather Inc.- http://www.accuweather.com/ New Jersey Expressways and Tollways - http://www.njfreeways.com/ Ray's Winter Storm Archive - http://www.njfreeways.com/weather/ -- This article was auto-posted by the ne.weather.moderated Weatherbot program. The author is solely responsible for its content. ne.weather.moderated FAQ/Charter: http://www.panix.com/~newm/faq.txt ne.weather.moderated moderators e-mail: (Please put "wx" or "weather" in the subject line to avoid the spam block.) |
Reply |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
West Cornwall - Some nice blue sky | uk.sci.weather (UK Weather) | |||
[WR] Romsey - 4 eighths blue sky but there's no cloud... | uk.sci.weather (UK Weather) | |||
[WR] Haytor 29/6/06 (Fog and blue sky) | uk.sci.weather (UK Weather) | |||
[WR] Whistlefield, Sunday, 6.02.2005. Blazing Blue Sky. | uk.sci.weather (UK Weather) | |||
OT - Blue-Green Algae and Global Warming | uk.sci.weather (UK Weather) |