Strong to severe storms possible Thursday, then cooler



spcTHU 612

It’ll feel summerlike Thursday as temperatures soar into the 80s across southern Minnesota. A developing system will touch off storms throughout the day and some could be severe.

Severe storms possible Thursday followed by a cooldown

Temperatures will be warm again Thursday. Enjoy those readings because we probably won’t be this warm again for a week or two if forecast models are to be believed. Highs will be back in the 70s with 60s northeast and cooler readings near Lake Superior.

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Forecast highs Thursday
National Weather Service

Dew points will be another thing you’ll notice. They have gone up overnight and will continue to do so Thursday ahead of a cold front. We could see dew points Thursday afternoon in southern Minnesota near 60 degrees, which is muggy for April.

dews loop
Forecast dew points 5 a.m. Thursday through 10 p.m.
College of DuPage weather lab

That added moisture and front will be the focus for more potential severe weather later Thursday. This will be our third round of possible severe weather in less than two weeks. That is rather unusual for April.

The National Oceanic and Atmospheric Administration’s Storm Prediction Center forecasts a slight risk (level 2 of 5) for severe storms Thursday afternoon and evening for portions of southern Minnesota.

spcTHU 612
Severe weather outlook for Thursday
National Weather Service

There will likely be some spotty showers ahead of the front already during the day Thursday, but thunderstorms will develop ahead of the front mid to late afternoon into the evening and track east.

Those initial storm cells could produce an isolated tornado or two with the bigger threats being large hail and some damaging wind gusts.

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Forecast precipitation 9 a.m. through 10 p.m. Thursday
NOAA, via Pivotal Weather

The setup Thursday doesn’t look as impressive as last Friday or Monday, however. The greatest tornado threat is south into Iowa, Nebraska and Kansas.

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Forecast severe weather breakdown for Thursday
NOAA, via Pivotal Weather

We also have red flag warnings due to critical fire conditions again for western Minnesota Thursday afternoon as drier air moves back in and gusty west winds develop.

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Red flag warnings Thursday
National Weather Service, via Pivotal Weather

Interestingly, today’s critical fire weather conditions are being driven by a “dry line,” something we don’t see a lot of in Minnesota. You can see a big drop in relative humidity late Thursday afternoon in western Minnesota extending southwest into Nebraska.

The actual cold front is farther behind that into the central Dakotas. This dry air is originating from the high desert areas of New Mexico and Colorado, being pushed northeast ahead of the cold front and behind the surge of higher dew points Thursday.

RH vs TEMPS
Forecast relative humidity (left) and temperatures (right) at 4 p.m. Thursday
NOAA, via WeatherBell Analytics

Behind it, temperatures drop to seasonable levels for Friday and the weekend. Highs Friday will be mostly in the 50s and 60s.

fri1137
Forecast highs Friday
National Weather Service

Another storm system looks to bring mostly rain and garden variety thunderstorms late Sunday into Monday.

It could be a decent rainfall for central and southern Minnesota. Total forecast rainfall (including Thursday’s rainfall) through early Tuesday could be in the 1 to 2-inch range for a large area:

wpc120
Forecast total rainfall through early Tuesday
NOAA, via Pivotal Weather



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Installation of Jira Application:

1. Download the Jira zip file to your OS:

  • Refer to https://www.atlassian.com/software/jira/core/download for Jira Core.
  • Refer to https://www.atlassian.com/software/jira/download for Jira Software.
  • Refer to https://www.atlassian.com/software/jira/download for Jira Service Management. 

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2. Create a folder named installation directory. This is the place where the Installation of Jira will be done. Do not use spaces or special characters in the path. Extract the Jira Zip file in your installation directory.

3. Create a folder named the home directory. This is the place where Jira data such as search indexes, logs, and files are stored. You should create this folder separately from your installation directory.

Let Jira know where to find the home directory when it starts. There are two ways to do it. 

  • Setting up an environment variable (generally Preferred)
  • Edit the jira-application.properties file

Setting up an environment variable:

  • You need to set an environment variable called “Jira_Home” in the OS with an exact path to the home directory.   
  • set JIRA_HOME=A:\path\to\jira-home
  • where A is the drive on which you have created the home directory.
  • You may later specify the above command in a script that is used to start Jira.

Edit the jira-application.properties file:

  • In any text editor, edit the file installation_directory\atlassian-jira\WEB-INF\classes\jira_application.properties. 
  • Next, add jira.home exact path to your home directory. You should avoid backlashes.
  • If you set a UNC path, you will have to double escape the primary backslash.

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4. By default, Jira checks port 8080.  If another application uses the same ports, you must tell Jira to use another port.

5. Then you can start Jira.  

  • Start the installation process by running installation_directory/bin/start-jira.bat. A command prompt opens. Closing it will stop Jira.
  • To run Jira in your browser, go to http://localhost:8080/.
  • If the command prompt window immediately closes, then your Java_home variable may be incorrectly set.

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Setting up Jira Application:

1. Select the setup method. Select ‘I will set it up myself’.

2. Connect with your database: 

  • If you haven’t done that yet, now is the time for you to set up a database.
  • Select My own database.
  • Select your database type and enter your database details.

3. Define Application properties:

  • Enter the name of your Jira site
  • Choose if your website needs to be private or everyone can register. You’ll be able to change that later.
  • Enter your basic URL through which people will be able to access your Jira website.

JIRA will connect to your database by means of a standard connection to the JDBC database. Connection sharing is managed in JIRA and can be modified later using the JIRA configuration tool.

When using Oracle or MySQL, there is an additional step:

  • Download and extract suitable database JDBC drivers.
  • Put the JAR file in your jira_installation/lib folder before proceeding with the setup wizard.

4. Enter the License:

  • Follow the instructions to sign in to my.atlassian.com to recover your license or enter the license key.

5. Sign up for your admin account:

  • Enter your administrator account details. Additional administrators can be added at the end of the setup.

6. Configure email notifications:

  • Enter the email server details. It enables Jira to send notifications when problems change.

7. Get started with Jira: 

That’s all! Your Jira website can be accessed from your basic URL or a URL such as http://computer_name(or)IP_address:port

Now, let us go through some of the prerequisites before we install Jira.

frequently asked Jira Interview Questions and Answers !!

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Jira installation Prerequisites:

1. See the Supported Platforms page to learn which version of Jira you are installing. It will provide you information about the supported operating systems, browsers and databases. 

Note: 

  • The installation of Jira on OSX is not supported.
  • We can use JDK (Java Development Kit) or JRE (Java Runtime Environment).
  • Only the version of Apache Tomcat provided with Jira is supported.

2. If you install Jira on a 32-bit system, you must reduce the maximum amount of heap available for Jira. 2GB is the default size 64bit system which is very high for a system with 32 bit and may be unsuitable for available memory.

Follow these steps once you have extracted files from the archive, but even before you start Jira.

  • The Default setenv file must be renamed. 

Go to the Jira-install-directory/bin directory and remove the setenv.bat/.sh file (edit its name). 

Label setenv32.bat/. sh as setenv.bat/.sh. Jira will use that file during startup.

  • You need to add properties for the jira-config.properties file.

Go to the home directory of Jira, and change the jira-config.properties file. In case there is no file, you may create it.

Add the properties below:

jira.index.batch.maxrambuffermb=256

jira.index.interactive.maxrambuffermb=256

3. Executing Jira as a service on Windows indicates that your Jira application will start automatically once Windows is started. You need to use the Windows installer if you wish to execute Jira as a Service.
In the event that you decide not to use Jira as a service: You need to start and stop Jira by executing the file start-jira.bat in your Jira installation folder. 

Jira will be executed as the Windows user account which is used to install Jira, or you may choose to operate it as a dedicated user. (This user requires complete read and write access for the installation folder and the base folder). Jira requires a manual restart when your server is restarted.

4. In order to start Jira in production, you must have an external database. Refer to the Supported Platforms page for the version you are installing for a list of currently supported databases. If you do not have a database, then PostgreSQL is the best choice. It is free, easy to configure, and has gone through many tests with Jira.

  • Configure your database before you start. Stepwise guidance for all supported databases can be found in Connecting Jira Apps to a Database.
  • UTF-8 character encoding can be used.
  • If you use either Oracle or MySQL, you will be required to download your database driver.
  • The integrated H2 database can be used to evaluate Jira, but you need to migrate to a different database before executing it in production. An external database can be easier to use right from the beginning.

5. You require a valid Jira software server, Jira service desk server or Jira Core server license to operate JIRA.

  • If you have not purchased a Jira Application License, then you can create an evaluation License during configuration.
  • If you are having a license key, you will be asked to log into my.atlassian.com to get it back, or you may manually enter the key while configuring.
  • If you are moving from Jira Cloud, then you will require a new Jira license.

6. Before installing Jira, make sure that you are using a supported Java version and that the JAVA_HOME environment variable is set properly.

Jira applications will work with Oracle JDK, OpenJDK, or JRE. To verify the JAVA_HOME variable:

  • Open the command prompt and enter “echo %JAVA_HOME%” and press Enter. 
  • If you are able to see the path to your Java install directory, then the JAVA_Home environment variable has been properly set. 
  • If nothing is shown, or  %JAVA_HOME% is shown, you need to manually define the JAVA_HOME environment variable.

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Conclusion:

In this post, we have gone through the installation of the Jira application on windows, Setting up the Jira application and the prerequisites before installing Jira. I hope this post was helpful!

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