Questions tagged [weather]

Atmospheric conditions at a specific place and time, such as temperature and precipitation. For such variables tracked over time, use the climate tag.

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22
votes
9answers
20k views

Near real-time sources of lightning strike data

I am wondering if anyone has any suggestions on sources of near real-time lightning strike data available for download? For example, Intellicast.com has a map of strikes, but makes no mention of the ...
11
votes
2answers
738 views

Which weather on my road? Looking for a spatial weather forecast web service

My friend Bob goes from A to B leaving tomorrow morning at 6:00. There are many direction services that indicates him short, fast and/or cheap routes. Bob does not like to drive under the rain and ...
10
votes
2answers
9k views

Picking coefficient in Inverse Distance Weighted method of QGIS?

I'm using QGIS 1.8.0 to interpolate weather data. This is, I have a weather station located in say, A and C. With the Inverted Distance Weighting or Triangular Interpolation methods, I can know/...
10
votes
2answers
18k views

How to extract specific information from GRIB files?

How to extract fetched GRIB data with Python and gribapi package (link goes to official ECMWF Wiki)? I tried to follow few examples from their "documentation" and do it myself, but I just cannot ...
8
votes
0answers
1k views

Weather data interpolation? [closed]

I'm trying to carry out weather conditions interpolations. I have information of 92 weather stations for 800,000 km2. As you can imagine the extension of land is huge and I need some kind or weather ...
7
votes
2answers
382 views

What are “M” point locations on the NOAA forcecast cone map?

I don't think I've ever noticed M before. H and S are Hurricane and Tropical Storm.
7
votes
1answer
2k views

Are special interpolation techniques required for weather data?

I've downloaded a series of weather observations from the local weather agency - it comprises around 1,000 points spread non-uniformly across Australia, with a greater density of points located near ...
6
votes
2answers
716 views

Looking for a live feed of tides in Australia

I'm looking for a feed of predicted tide heights and times, specifically for NSW, Australia. Tide sites such as the Bureau of Meteorology only provide static images of predicted tide height. NSW ...
6
votes
3answers
7k views

real-time weather forecast raster for Europe

I am trying to find a numeric weather forecast map (air pressure, temperature, snowfall, precipitation..) that I could display in my web map client. For the client I'm currently using OpenLayers with ...
6
votes
1answer
456 views

Standard colour ramp for wave height visualisation

I'm working on a visualisation of weather, including wave heights. The source data is from a WaveWatch 3 model, and I'm using GeoServer 2.7 (with NetCDF and dynamic colormap extensions) to do the ...
6
votes
1answer
175 views

Data Feed for Space Weather / Aurora

I am building a map application for a northerly area and would love to bring in a feed of northern lights prediction/probability (like below). http://www.gi.alaska.edu/AuroraForecast Does anyone ...
5
votes
1answer
228 views

Where can I get US snowfall data with day resolution?

I need to visualize the snowfall in the USA for a given time period and city. So you could pick a given day and get a heatmap showing the amount of snowfall at each place in the USA on that day. ...
5
votes
4answers
3k views

Grib2 Libraries For .Net

Are there any good libraries for accessing GRIB2 data in .Net? Specifically, I want to be able to quickly pull subsets of weather data from a grib2 file based on time and location.
5
votes
3answers
151 views

What sources of granular wind data over the continental US are available?

I am looking for publicly or commercially available wind data at altitudes ranging from 0 feet to 40,000 feet over the continental United States. Which data sources should I look at? Which one is ...
5
votes
2answers
3k views

WMS weather data for Europe

I am looking for a source of weather data for Europe. I use http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/conus_vis.cgi? and http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi? for the US,...
4
votes
1answer
866 views

How to set style for a Wind - point layer on GeoServer

I am serving a Wind as a point layer on GeoServer. In each point I have data: wind speed [m/s] and wind direction [degrees] Currently I am using default style, but I would like to be able to change ...
4
votes
1answer
105 views

Query the lowest temperature from single GFS forecast with GEE

My goal is to get the lowest temperature from a given GFS forecast. // import GFS forecast collection var gfs_dataset = ee.ImageCollection('NOAA/GFS0P25'); // get a single forecast var ...
3
votes
1answer
641 views

Adding weather radar data to leaflet from website

I am looking to add a specific layer from this website (https://www.iweathernet.com/total-rainfall-map-24-hours-to-72-hours) to a leaflet map in R. I have tried the code below, but the data does not ...
3
votes
3answers
2k views

Wind speed data interpolation

I would need to predict wind speed and direction at a wind farm station, using an artificial neural network. Unfortunately, the only historical weather data available are the one at some weather ...
3
votes
1answer
231 views

Converting NetCDF WRF weather forecasts from a custom Lambert Conformal Conical projection to WSG84

I'm having some trouble reading a WRF weather forecast prediction file where the coordinates are in a custom Lambert Conformal Conical projection. My final goal is to get the weather forecast a a ...
3
votes
1answer
6k views

Using GDAL to read data from GRIB file in Python?

I am attempting to use GDAL to read corresponding latitude, longitude, and temperature values from a GRIB file. I would like to store these data points in a 2-D list. I was able to do this using the ...
3
votes
2answers
7k views

How to get WMO SYNOP data?

I would like to get WMO weather stations observations daily reports from the web in file or web-service form. According to WMO Resolution 40 -info- this data should be availiable in text form with ...
2
votes
2answers
7k views

NOAA API data for past monthly mean Temperature and precipitation

I am trying to use the NOAA API to get data on monthly mean temperature and precipitation for the past 10 years. I wrote the following python code (the variable "token" in the code is the API token ...
2
votes
1answer
99 views

How to capture real time weather data of points using OpenWeatherMap

I want to set points on a map layer with autofilled data in some fields in the attribute table, which already works fine with date/time and username/observer. Is there also a way to capture real time ...
2
votes
1answer
236 views

Changing temperature range in thermographic map using QGIS

I need to know how to set temperature range from thermographic map to be from 100-120° C using QGIS. In that case I would see just the temperatures from 100-120° C.
2
votes
1answer
913 views

Interpolate grib2 data from GFS

I downloaded a grib2 file containing GFS data. I need to get wind and temperature from altitudes ranging from 1000 ft to 42000 ft I know the grib2 (GFS) only have data for specific "isobaricInhPa" ...
2
votes
2answers
705 views

Defining the azimuthal equidistant projection of an Environment Canada weather radar map

Environment Canada helpfully provides recent captures of all national weather radar stations at http://dd.meteo.gc.ca/radar/PRECIPET/GIF/ at ten minute intervals. These are the same GIF images as ...
2
votes
1answer
62 views

Reproject file to line up with geographic features on a map

I have been trying to reproject data to match the "geographic features" on a map (and also shapefiles) in QGIS or on the web. I'm ingesting raw GRIB data (available here). I'm using python ...
2
votes
1answer
2k views

How to get value of uvIndex for a particular latitude and longitude from a grib2 file?

I'm trying to find out the uvIndex of a particular set of lat,lng. I'm getting the data file from this link. I'm using pygrib to read the file. import pygrib grbs = pygrib.open('uv.t12z.grbf01.grib2'...
2
votes
1answer
1k views

Historical NWS GFS forecast data

The National Weather Service (NWS) makes the results from its Global Forecast System model (GFS) available for download as GRIB2 files. While accessing current (or recent) forecasts is straight-...
2
votes
2answers
240 views

Finding the average of a raster across a given region, in R, for many points in time

I have a time-series of rasters (daily maps of global temperature for the past year), and a shape-file outlining state boundaries. I'd like to find the average temperature in each state on each day of ...
2
votes
1answer
785 views

Why are there holes in these radar blobs?

I was recently looking at a live weather radar online and I noticed several "holes" in the radar blobs usually near the center of the blob. I also noticed that in a few cases that the holes stayed in ...
2
votes
1answer
130 views

Sourcing Historical Wind data?

I'm looking for a service that provides hourly historical data for 24h and back. I am currently interfacing openweathermap.org but had to find out that not all stations provide this feature. Are ...
2
votes
1answer
251 views

other than GrADS and NCL, any other map/chart scripting and plotting software dedicated for climate and meteorology?

NCL is quite good indeed, but I would like to know whether there are other options.
2
votes
0answers
50 views

Algorithm to find low/high atmospheric pressure systems in gridded raster data

What's the commonly used algorithm for finding center positions and values of low/high atmospheric pressure systems in gridded raster data (GRIB/NetCDF/GeoTIFF)? First I tried a naive approach to ...
2
votes
0answers
58 views

Adding JAXA weather map tiles in Leaflet

Is there any way I can add JAXA rainfall layer as a Leaflet layer. If not what other options are available for rainfall/ppt layer other than OpenWeather map?
2
votes
0answers
99 views

Extracting data from multiple raster layers in QGIS [duplicate]

I have a raster layer containing climatic monthly data: rainfall maximum and minimum temperatures There is one layer for each variable and month. I want to extract the average and maximum values ...
2
votes
0answers
50 views

Ways of merging weather data from different timezones

Does anyone know of any simple means for merging (inverse distance weighting method) hourly weather files (precip, temp, etc.) from different timezones? I am creating weather data for HUC8s, and am ...
1
vote
1answer
614 views

Where can I download Real time Traffic and weather data for the world?

Where can I download real time data for traffic and weather? I'd like to use it as an overlay on a mapping service of my choice (eg. Google maps, OpenLayers etc.)
1
vote
2answers
3k views

Seeking Javascript API for weather data? [closed]

I'm looking for a good javascript api which gives access to a weather data-base. I want to extract information like average number of rain days, amount of sunshine and average temperature. Is there ...
1
vote
1answer
222 views

Adding weather information to QGIS atlas composer

I'd like to add a tabular weather forecast with climatic variables like temperature, wind, and chance of precipitation to my QGIS atlas composer. Does anyone have suggestions on how I can do this?
1
vote
1answer
399 views

Get CSV of specific data from NOAA NAM-NMM Dataset using wgrib2

I am trying to get data from the NAM-NMM Dataset and am having a lot of trouble getting the data I want out of the grb2 files. How can I get a CSV file containing information like Probability of ...
1
vote
2answers
198 views

Open Source Historical Weather Data API

My client requires weather data for an application that has wind speed, wind direction aggregated by zip code for individual days of the week. Where can this be acquired to be used in an Esri Web ...
1
vote
2answers
382 views

Is there documentation anyplace for adding weather to PostGIS/Geoserver?

We have an internal PostGIS/Geoserver for rendering map tiles for the world based on OpenStreetMaps. We would like to overlay weather, but would like to do so without referencing external URLs. The ...
1
vote
1answer
4k views

Retrieving info from GRIB2 file with JAVA?

I've just started parsing some info inside GRIB2 file with NOAA weather forecast, and I am realizing this task is not as easy as I could think 'a priori'. I need to process some info inside JAVA ...
1
vote
0answers
61 views

Google Earth Engine: how to use buffer function

I am using the following codes to extract weather data for a list of point with longitude and latitude. Now I would like to have the data for a buffer of 1km for each data. var temp = ee....
1
vote
0answers
98 views

Adding 7 days weather forecast to QGIS project

The Qweather Plugin with Yahoo Weather API gives me the real time weather info I want but I also want to add seven days weather forecast to my QGIS project. How can I implement this?
1
vote
0answers
734 views

Visualizing Weather Data in real-time/online with QGIS [closed]

I have been searching for quite some time now, but I can't seem to find the answer by myself. I did come across some things that helped me a bit, but many answers on this topic were from quite some ...
1
vote
0answers
105 views

Seeking source for grib data download?

I am trying to integrate wind maps into an existing map and I would like to download the latest wind data for a local area like zyGrib does and then attach it into the map. I am aware that there are ...
1
vote
0answers
104 views

Weather radar imagery

Are there any services besides the NOAA that offer weather radar imagery for free? Some of the issues our users have with the images from nowcoast/radar_meteo_imagery_nexrad_time are the colors and ...