Synop Information for 91329 in Fananu Island, C, Micronesia

The following information is known about 91329. If you think that any information is incorrect, then please follow the instructions for correcting that data item.

It is possible that this page will report a problem where no problem exists. If you believe that this has happened, then please contact me (address at the bottom of this page) and explain clearly why you think this page is in error. Note that any changes that you make may take a few days to show up here, so please give it a week before commenting.

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Registered Location

Latitude: 8° 33' 26" N (deg min sec), 8.5571° (decimal), 0833.43N (LORAN)
Longitude: 151° 54' 11" E (deg min sec), 151.9031° (decimal), 15154.19E (LORAN)
Elevation: 0 metres (0 feet)
Location: Fananu Island, C, Micronesia

The elevation does not correspond with the estimated elevation (-9999 metres (-32805 feet) -- source Geonames) at that point. Either the location or the elevation (or both) are almost certain to be incorrect. Please use the 'send the updated information' link below to update the location or elevation.

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the '91329' marker) will display the latitude/longitude of that point.

If the displayed location (or elevation) of the weather observing location is incorrect, please drag the marker to the right location (or click in the right location), and then send the updated information. Please note that we are trying to spot either the Stevenson Screen (or equivalent) or the location where the barometric readings are taken.

Can you help with location quality? Please indicate if the marker on the map points at the weather instrument cluster:

The best way to get elevation is to consult a topographic map. Make sure that you know whether the contours are marked in feet or metres. Note that handheld GPS receivers do not provide readings of elevation accurate to better than 10-20 metres (technical discussion). If you do not have access to a topographic map, then a GPS receiver is acceptable, but make sure that it is operating in 3D mode and let it average the position for at least five minutes.

For more information on reading maps, please see the Topo Map Reading Guide -- in particular it discusses how to read contours.

The location information for this site was gathered from 4 data sources. This position has been modified based on user feedback. The user provided this information: I lived on Fananu for 3 years a long time ago..

Show location history.

There are no photographs of the station. If you have pictures of this location, then please email them to

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs.

Data Status

Over the last 28 days, no data was seen on the following dates: 2021-11-05 to 2021-11-08, 2021-11-10 to 2021-11-12, 2021-11-14, 2021-11-16 to 2021-11-18, 2021-11-20, 2021-11-22 to 2021-11-24, 2021-11-27, 2021-11-29 to 2021-11-30.

Recent observations from this weather station can be downloaded as a CSV file suitable for importing into various spreadsheet programs: last 7 days, last 14 days, last 28 days, last 56 days. This data can also be linked directly from Excel using a Web Query. The main link goes to the page with the data on it, and the IQY link is the Web Query that will access it: last 7 days (IQY: last 7 days), last 14 days (IQY: last 14 days), last 28 days (IQY: last 28 days), last 56 days (IQY: last 56 days).

All the means and standard deviations shown below are from the last 28 days. Change analysis period to Last 3 days  Last 7 days  Last 14 days  Last 8 weeks  Last 13 weeks  Last 26 weeks  Last 39 weeks  Last 52 weeks  

By default, the longer analysis periods display graphs that show the long term performance of this station. The graphs show the mean error over time, and include error bars which are one standard deviation long. This provides an easy way to see if there are any underlying trends in the data. Note that a 'step' in your data does not (necessarily) mean that something happened to your station. It could mean that another station came online in the local area, and they are changing the analysis.

The analysis is performed by MADIS. This web page just provides visualization of the data that MADIS produces. There are a number of very knowledgeable people who participate on the WXQC Mailing List who do understand exactly how MADIS works and can resolve issues when the analysis seems to be broken. However, in most cases, the station readings are at fault, or the software that is transmitting the data to CWOP. Please check those paths first.

You can also see how this station compares with other stations.

The inconsistency noted above in your location information means that the analyzed readings for your location may be incorrect. For example, if your location is incorrect, then the analysis values will be for a location other than your station. This will give different analysis results, probably leading to errors being shown below. If the elevation is incorrect, then the comparison of temperature readings will be in error.

A recently received weather report from this station was

Neighboring Stations

This is a list of stations that are close to this station. You can look at those for comparison purposes. The average difference between your station and each station below is listed as well. This may allow you to detect local stations which are erroneous. You can also use these numbers to adjust your instruments -- especially if a number of ASOS stations have similar differences to your station. Also, try increasing the analysis period to more than the default 28 days. The difference is only given if both stations report reasonably often during each day. Some stations only report every 6 hours, and this makes the average of less interest. In this case, the average is not displayed. The values reported are the differences between this station and the neighboring station. I.e. if the difference is positive, then this station is reading higher than the neighboring station. Since this station has not been reporting continuously during the analysis period (it missed 18 days out of 28), the offsets below may not be accurate.

You can also subscribe to an RSS feed to tell you when new stations come online in this area. Choose either within 100 miles or 250 miles .

PTKK75.9 milesSouth Weno Island, Chuuk Int. Airp., Micronesia, Federated States of (lat 7.4619°, long 151.8430°, altitude 3 metres)
PTPN445.7 milesEast Pohnpei Island, Pohnpei Int. Airp., Micronesia, Federated States of (lat 6.9858°, long 158.2101°, altitude 2 metres)
PTTP446.4 milesEast Pohnpei, NWS Office, Micronesia, Federated States of (lat 6.9667°, long 158.2167°, altitude 39 metres)
PGUA587.2 milesNorthwest Andersen, Mariana Is, Andersen Air Force Base, GU, United States (lat 13.5840°, long 144.9300°, altitude 187 metres)
PGUM590.5 milesNorthwest Agana, Guam International Airport, GU, United States (lat 13.4839°, long 144.7972°, altitude 82 metres)
CW4647592.4 milesNorthwest Tamuning, GU, US (lat 13.5032°, long 144.7768°, altitude 34 metres)
PGRO595.6 milesNorthwest Rota Island, N. Mariana Is, Rota International Airport, GU, United States (lat 14.1743°, long 145.2425°, altitude 185 metres)
PGWT615.9 milesNorthwest Tinian Island, N. Mariana Is, West Tinian Airport, GU, United States (lat 14.9992°, long 145.6193°, altitude 82 metres)
PGSN616.8 milesNorthwest Saipan Island, Saipan International Airport, Northern Mariana Islands, United States (lat 15.1190°, long 145.7294°, altitude 65 metres)
PTSA790.5 milesEast Kosrae Island, Kosrae Airport, Micronesia, Federated States of (lat 5.3524°, long 162.9557°, altitude 3 metres)

Location Formats

The location is shown in three different formats. Each of these is used in some software, and is shown on some websites.

Degrees Minutes Seconds: VWS/VWSAPRS, WeatherLink 5.5, WeatherLink (5.2-5.4), WeatherView (Linux)

Decimal degrees: FreeWX, WeatherView32 (PC application)

LORAN: WeatherDisplay, WUHU, Henriksen WServer


CWOP Home: This describes the whole CWOP program and has a large amount of useful information.

CWOP Siting Guide (PDF): This is a guide to siting and operating a CWOP station. This is a must-read document.

Another CWOP Guide (PDF): This is another guide to siting and operating a CWOP station. This is a must-read document.

Urban Siting and Operations (PDF): This is a guide to siting and operating a CWOP station in an urban environment.

APRS WX Message format: This describes the actual format of the messages transmitted that carry WX information.

WXQC Mailing List: This is a mailing list where data quality issues are discussed. Assistance with software configuration can often be found here.

Topo Map Reading Guide: How to read USGS topographic maps, with a good section on reading contours.

Geographically nearby web pages: Use Geourl to find web pages that deal with locations geographically close to this site.

Overall website comments, problems etc to Philip Gladstone
Page layout last modified Sunday, 28 February 2016
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