He has recently improved his Baltic coverage and is completely comprehensive on how to get information afloat. Thus several of the sea areas around the north, south and west of Ireland together with parts of the High Seas forecast for Metarea I are included in the transmissions from Malin Head and Valentia. We try to filter out as much erroneous data as possible but because XCWeather is totally automated the occasional rogue report will inevitably slip through. If the observation is over 3 hours old the map arrow will be grey and the time stamp will be in red. Current weather information is taken from instruments sited at each location and barring technical difficulties should reflect the conditions on the ground at the time of the observation.
Why are two wind speeds reported for the same time? A channel map is available on the Stockholm Radio website which is well worth printing out and taking with you. This includes a hour forecast and a hour outlook for each individual inshore area plus a general outlook for all UK inshore waters for the following three days see Table 5 above. The table Annex 2 to the Recommendation is reproduced below and presented in a decode format. All of the data plotted by XCWeather is obtained from sources on the internet and sometimes this data is temporarily unavailable. My favourite station has disappeared, is there a problem?
Cloud, Pressure and Wind Charts
You will need to select the area you need. Messages which cannot be programmed out include distress messages, search and rescue messages, navigational warnings and meteorological warnings in this context note that meteorological forecasts other than warnings can be programmed out - see below for more on this topic. B 1 denotes the broadcast station and time of routine transmissions , for example E indicates Niton using the slot time of and every four hours thereafter. Amendments to the forecasts between the routine issues is via the gale-warning service. Apart from a change of name from the Post Office Coastal Radio Station Cullercoats, to British Telecom International Coastal Radio Station Cullercoats in the early s the temporary service continued with reports coming in of its success. A sufficiently accurate conversion to knots is to multiply by 2 i.
Please don't take the images or data from XCWeather. X C W eather. This is obviously a problem when sailing near the coast of Western Scotland were the broadcast from Portpatrick is difficult to receive in many inshore areas. Coverage is excellent for the whole Swedish coast, with a separate forecast for regions as little as 30 miles apart, but VHF channels vary according to location and change randomly about every 30 miles, and there is no logic to the channel layout. Why are some arrows red? The situation has improved in the last couple of years with the advent of GRIB.
X C W eather. Most wind speed measurements are made at a height of 10 meters above ground level. Red arrows show that the wind is gusting. The downside is that the data is not interpreted by a human, so you run a little risk. The latest map contains channel and forecast information for the whole of the Baltic, not just Sweden.
If the observation is over 3 hours old the map arrow will be grey and the time stamp will be in red. We've found that Sailmail works reliably, and is generally pretty accurate. Unfortunately, it is in Swedish, but it is always in the same format and is relatively easy to pick up.
Thus several of the sea areas around the north, south and west of Ireland together with parts of the High Seas forecast for Metarea I are included in the transmissions from Malin Head and Valentia. Sailmail , a cooperative venture between sailors and radio hams, has an automatic system which will extract wind forecasts from the US model and email them to you. Decode for abbreviations which may be used in NAVTEX messages for terms other than wind direction Note the list has been arranged as decode and is in alphabetical order of the abbreviation.
It includes a useful 5 day prediction. Why are some arrows red? Red arrows show that the wind is gusting.
Thus the heading indicates which NAVTEX station broadcasts it, the type of information and a sequential number of the message. Most wind speed measurements are made at a height of 10 meters above ground level. Others are just notoriously fickle and only seem to submit reports when they feel like it. Why are some arrows red?
- It also publishes accurate graphical wind flow forecasts just select your sea area. Unfortunately we don't keep any historical records so we can't help with this kind of enquiry. It also has a very useful metogram facility.
- Subject content of message as defined by the B 2 character Table 4: Can I use your images and data on my website? Why are some arrows red?
We try to filter out as much erroneous data as possible but because XCWeather is totally automated the occasional rogue report will inevitably slip through. On 1st October the service was extended to the BT coastal radio station at Portpatrick. A channel map is available on the Stockholm Radio website which is well worth printing out and taking with you. Please be our guest, the more the merrier.
How are the observations collected? We make extensive use of the VHF services. This broadcast included warnings and forecasts for the English Channel, the Irish Sea and all the sea areas in the South-west Approaches included in the main shipping forecast. Also it is worth noting that any warning issued at a non routine time is repeated in the following scheduled ten-minute slot. The technology for the dissemination of these text messages via a simple radio-telex system has been about for some considerable time, certainly since the late s when the Post Office Coastal Radio Station at Cullercoats in the north-east of England commenced broadcasting weather forecasts and gale warnings for the North Sea and most of the English Channel shipping forecast areas from Fair Isle to Plymouth on what was then referred to as a temporary radio teletype broadcast. Transas incorporate a GRIB viewer, or you can download one from the downloads section on the Sailmail site.
How should I use the forecast? (limitations)
Why are two wind speeds reported for the same time? Coverage is excellent for the whole Swedish coast, with a separate forecast for regions as little as 30 miles apart, but VHF channels vary according to location and change randomly about every 30 miles, and there is no logic to the channel layout. Observations Forecast Maps Overview Animation. Our observation is that if anything it tends to underestimate the wind slightly, and the absence of weather fronts on the charts is a pity as you cant tell if its going to rain!
We try to filter out as much erroneous data as possible but because XCWeather is totally automated the occasional rogue report will inevitably slip through. The main drawback with Navtex in Sweden is that forecasts come through about The kHz frequency has been the easiest to receive. The following notes summarise some aspects of the service available in waters around the United Kingdom and the Republic of Ireland and that provided by Norway, Belgium and France for the North Sea and South-west Approaches to the British Isles. In addition to transient problems, some stations are only manned during office hours so they disappear overnight and at weekends. You should be aware that at this resolution the forecast will not be able to fully model topographical effects.