Hour-by-hour weather forecast as Storm Gareth smashes its way towards N.I.

Storm Gareth, heavy rain and winds up to 80mph are beginning to arrive in Northern Ireland.

A yellow status weather warning of wind for Northern Ireland issued by the Met Office at the weekend was revised on Monday morning to reflect the possibility of 80mph gale force winds.

A tree falls on top of a car during Storm Erik in Belfast in January. (Photo: Presseye)

A tree falls on top of a car during Storm Erik in Belfast in January. (Photo: Presseye)

The weather warning is valid between 3:00pm on Tuesday and 12:00pm on Wednesday.

"A spell of strong northwesterly winds are expected across Northern Ireland for the evening travel period, continuing overnight and Wednesday morning," reads the warning on the Met Office website.

"Gusts of up to 60mph are likely inland with a small chance of reaching 70mph for a time in squally showers.

"Gusts of 70-75mph are likely along northern coasts, perhaps up to 80mph for a time.

"Winds will steadily ease through Wednesday morning."

Hour-by-hour weather forecast:

Tuesday March 12

3:00pm - Heavy Shower - 7°C - 42mph gusts.

4:00pm - Heavy Rain - 6°C - 42mph gusts.

5:00pm - Heavy Shower - 6°C - 43mph gusts.

6:00pm - Heavy Rain - 6°C - 42mph gusts.

7:00pm - Heavy Rain - 6°C - 45mph gusts.

8:00pm - Light Shower - 6°C - 48mph gusts.

9:00pm - Heavy Shower - 6°C - 48mph gusts.

10:00pm - Heavy Shower - 6°C - 48mph gusts.

11:00pm - Heavy Shower - 7°C - 49mph gusts.

Wednesday March 13

12:00am - Heavy Shower - 7°C - 50mph gusts.

1:00am - Heavy Shower - 7°C - 47mph gusts.

2:00am - Heavy Shower - 7°C - 46mph gusts.

3:00am - Heavy Shower - 7°C - 44mph gusts.

4:00am - Heavy Shower - 7°C - 43mph gusts.

5:00am - Light Shower - 7°C - 44mph gusts.

6:00am - Light Shower - 7°C - 43mph gusts.

7:00am - Heavy Shower - 7°C - 43mph gusts.

8:00am - Light Shower - 7°C - 42mph gusts.

9:00am - Heavy Shower - 7°C - 41mph gusts.

10:00am - Heavy Shower - 8°C - 43mph gusts.

11:00am - Light Shower - 8°C - 45mph gusts.

12:00pm - Light Shower - 8°C - 43mph gusts.