NT Police Fire and Emergency Services Acting Deputy Chief Fire Officer Joshua Fischer said crews were at the scene of two grass fires on Tuesday, including a fire at Morris Road in Lansdowne which breached containment lines last night.

Mr Fischer said although these blazes have since been brought under control, preparations have been made to assist with potential blazes over the coming days.

"Yesterday we sent additional volunteer rescue members from Jabiru and the Greater Darwin area to assist career auxiliary firefighters [in Katherine]," he said.

"They are ready to respond if needed."

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He said gusty southeasterly winds predicted for the coming days mean that any fires that start will be more difficult to contain.

"The risk to the public is if a fire was to start, it is likely to move quickly and be quite uncontrollable," Mr Fischer said.

Mr Fischer said that with this being the first fire ban declaration for Katherine this year, it is important that landowners in the region are informed and prepared.

"Rural land holders that do live on a rural block do need to have a bushfire survival plan that is written and practiced so they're not panicking at the last minute," he said.

The fire ban came into effect at midnight and is set to continue until midnight tonight.

Mr Fischer said there is a chance the fire ban will continue depending on weather conditions.

Updates on fire bans and conditions are available on the Secure NT Website, PFES Social media, the Bushfire NT social media and the NT Fire Incident map.

Mr Fischer advised anyone who has information about a fire that has started in suspicious circumstances to contact Crime Stoppers on 800 333 000.

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