The Swedish Meteorological and Hydrological Institute (www.smhi.se) has launched an official app for Windows Phone. Due to levels of demand displayed in Sweden, the SMHI app is now available in the region (the only supported language is Swedish). While the app itself appears to be rather limited in advanced functionality, it's an official offering and a beta at that.
The SMHI app provides weather data and information for locations you're currently at, but not only at local areas supported, you can also search for locations worldwide. Weather warnings published for Sweden can be accessed from within the app, with alerts shown for any searched area (support for Sweden only).
While weather reports are available for the current day, data for how the weather has been in the past can be loaded in the form of calculated values. Differences observed between dates can also be displayed for a closer look at how the general weather has advanced.
If you're after information regarding the rainfall, radar images are available for the Nordic region covering the last six hours. These images can be viewed as animations to monitor exactly how the rain and any lightning is advancing across the region. Utilising the SMHI forecast database, you can be sure the data is accurate and trustworthy.
Unfortunately, as noted above, this is a beta and as such there's some functionality missing, including live tile support. For an initial version, it's a solid app worth checking out should you wish to check out the latest weather reports in the Nordic region. That said, there are numerous weather apps available for Windows Phone (seriously, we've covered many apps on-site).
You can download SMHI from the Windows Phone Store for free. Let us know what you think of the app in the comments below. Thanks, Zaki, for the tip!