Monday was a damp and cloudy day across Donegal but the good news is that the weather will improve over the later stages of Tuesday with high pressure building with some areas stating dry until early next week

Pollen levels will be high from Wednesday until next week across Donegal with the main type of pollen been tree.

• Birch tree pollen is now airborne with a high risk, especially during sunny weather. Ash and the milder willow pollen also airborne.

• Grass pollen risk is low and will remain low until May

• Weed pollen risk is low for now but the season will start again in late April/May

Turning drier across Ireland from Tuesday across Donegal

TUESDAY 20TH APRIL 2021

A cloudy morning on Tuesday across Donegal with outbreaks of rain early in the morning clearing after dawn. later Tuesday afternoon and evening brighter and sunnier weather will spread southwards across Donegal. Temperatures will range between 9C to 10C.

Clear weather will move southwards on Tuesday night with good clear sky’s across Donegal. There will be the small risk of a frost across Donegal especially towards dawn with temperatures between -1 to 2C.

Pollen - Donegal

Pollen levels will be Moderate on Tuesday and the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be moderate on Tuesday under clear sky’s. There will be the risk of sunburn

WEDNESDAY 21ST APRIL 2021

Wednesday will start of dry with nice sunny spells across Donegal the afternoon and evening will also be a dry with bright and sunny spells for all areas of Donegal.

Temperatures will range between 10C to 13C across Donegal.

Overnight will be dry in Donegal with good clear spells with temperatures between 0C to 3C where there will be the slight risk of a grass frost. A few fog patches may also form in places.

Pollen - Donegal

Pollen levels will be High on Wednesday and the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be moderate to high on Wednesday under clear sky’s. There will be the risk of sunburn

THURSDAY 22ND APRIL 2021

Thursday will be another bright and sunny day for Donegal as high pressure sits across the country. Temperatures will range between 14C to 16C across Donegal.

Thursday night will be another dry night with clear spells across Donegal. Temperatures will range between 3C to 6C overnight

Pollen - Donegal

Pollen levels will be High on Thursdayand the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be moderate to high on Thursday under clear sky’s. There will be the risk of sunburn

FRIDAY 23RD APRIL 2021

Friday will be another dry day across Donegal with good bright and sunny spells. Temperatures will range between 15C to 17C.

Friday night will be another dry night with good clear spell across county Donegal. Temperatures will range between 6C to 7C

Pollen - Donegal

Pollen levels will be High on Friday and the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be high on Friday under clear sky’s. There will be the risk of sunburn

remaining dry this weekend with good sunny spells across County Donegal

This weekend the weather will remain dry with good sunny spells as high pressure looks set to stay sitting over Donegal which is good news for you none rain lovers. The ridge of higher pressure can be seen in the below chart sitting across Ireland this weekend and in fact there are sign the high pressure system will strengthen which is good news if you want drier weather and bags of sunshine .

At present the latest weekend outlook has the high pressure system which will sit across Donegal and Ireland from Tuesday to Friday strengthen over the weekend which will mean that it will be harder to shift and resulting in a longer period of dry weather which the Donegal Weather Channel longer term forecast hinting at last week. So this weekend will be perfect weather to go exploring within in your own county especially across Donegal which has some of the most beautiful views. If you plan to head out on a road trip this weekend please do give yourself plenty of time and drive safe. Please do respect others and follow all Covid 19 guidelines.

SATURDAY 24TH APRIL 2021

High pressure stays in place on Saturday with the high pressure system strengthen which will give good bright and sunny spells across Donegal with temperatures between 15C to 17C maybe even as high as 18C across Donegal with the northwest of Ireland looking set to see the best and warmest conditions this weekend

Dry overnight with clear spells on Saturday. Temperatures will range between 4C to 7C.

Pollen - Donegal

Pollen levels will be High on Saturday and the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be high on Saturday under clear sky’s. There will be the risk of sunburn

SUNDAY 25TH APRIL 2021

High pressure stays in place again on Sunday with good bright and sunny spells across Ireland with temperatures between 13C to 17C warmest in the west, northwest and midlands again.

Dry overnight with clear spells on Sunday. Temperatures will range between 4C to 7C.

Pollen - Donegal

Pollen levels will be High on Sunday and the main pollen type will be Tree.

UV Forecast - Donegal

UV Levels will be high on Sunday under clear sky’s. There will be the risk of sunburn

Long range forecast for the rest of April and early May

The long range forecast outlook look rather good on the ECMWF and GFS models showing a nice end to April with high pressure dominating the weather .

The chart below is taken from the ECMWF weather model long range outlook which shows the pressure over Ireland between Monday the 19th of April to Monday the 26th of April and shows high pressure than average. The below chart is the higher pressure which will sit across Ireland this weekend and weekend

Early May Outlook

The week between 26th of April and 3rd of May has high pressure to the north of Ireland and lower pressure to the south. The ECMWF long range forecast show still rather dry weather moving into the first few days of May the GFS forecast models also backs this idea up both model outlooks for the period around the May Bank Holiday can be seen below.

No real warm weather is expected over the rest of April into early may with temperatures around normally for the time of year in the mid teens possibly into the high teens later in the month.

The below charts are from the ECMWF Model which shows higher pressure than average across Ireland in to early may.

The below chart is taken from the GFS model which is the American model which shows high pressure into the end of April and early May period. The High pressure system is a fairly strong pressure system which would feed up warm southwesterly airflow with temperatures in the high teens.

FARMERS NOTE - VERY LITTLE RAINFALL AND A FIRE RISK LATER THIS WEEK

Rainfall amount between Tuesday 20th April and Monday 26th of April will be way lower than average. Today Monday will see the most rain with around 7mm in Atlantic coastal areas with lower than 4mm in the eastern half of Ireland. Drying conditions will be mostly poor over the next couple of days, but will improve to good from midweek.

RAINFALL AMOUNTS DONEGAL

After Tuesday morning no rain is expected across Donegal until at least around midweek next week with conditions becoming very dry across the county

FIRE RISK

With drier weather expected from the second half of Tuesday until early next week where rainfall amounts will be less than 1mm for much of Ireland this will mean good dry conditions which will increase the risk of gorse and forest fires later this weekend and over the weekend. The fire risk will be code orange high risk be prepared .

Based on recent fire activity, ignition risks appear to be mainly focussed on areas with public access, particularly peatland sites. The relaxation of some Covid-19 requirements mean that members of the public can now travel within their respective counties, and higher visitor activity levels at recreational sites can be expected. Members of the public intending to visit forests and other recreational sites are reminded to adhere to regulations introduced to limit the spread of Covid-19. Vehicles must not be parked at site entrances or impede emergency service access to forest roads. Visitors should not use barbeques or open fires at any stage.

BE PREPARED. BE VIGILANT. STAMP OUT FOREST FIRES

Advice to the General Public/Forest Visitors

Members of the public and visitors to recreational areas should cooperate with all requests regarding fire safety, obey all relevant bye-laws and be considerate in parking vehicles so as not to impede access by emergency vehicles.

Where fire outbreaks occur at or near recreational areas the following actions should be taken by visitors in the interests of safety.

1. Do not light fires in and around forests or open land.

2. Do not attempt to intervene or fight fires under any circumstances.

3. Gather all family/group members and move to a safe fuel-free location such as a car

park, upwind of the fire.

4. Telephone Fire and Rescue Services via 112 and report the fire and its location.

5. Evacuate if instructed to do so, and cooperate with all Emergency Service Instructions.

All forecast, research and data are put together by Donegal Weather Channel. If you find are forecast useful please share with your friends and give a like on our social media platform.

Kenneth from the Donegal Weather Channel

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