Storm Barra: December 7/8th 2021 **Technical Discussion Only**

Meteorite58

19mm of rain here outside Tralee since it began last night

Bar 962.1 hPa Falling Rapidly

https://wow.met.ie/

Planet X

Thank God for the "Technical Discussion Only" 😀

squarecircles

Status Orange - Wind warning for Donegal

• Met Éireann Weather Warning
• Storm Barra: Northwesterly winds will reach mean speeds of 65 to 80 km/h with severe or damaging gusts of 100 to 130 km/h, with localised stronger winds likely. Due to a combination of high waves, storm surge and high tide, coastal flooding is expected. Disruption to power and travel are likely.
• Valid: 02:00 Wednesday 08/12/2021 to 14:00 Wednesday 08/12/2021
• Issued: 09:35 Tuesday 07/12/2021
• 
  

Status Orange - Wind warning for Leitrim, Sligo

• Met Éireann Weather Warning
• Storm Barra: Northwesterly winds will reach mean speeds of 65 to 80 km/h with severe or damaging gusts of 100 to 130 km/h, with localised stronger winds likely. Due to a combination of high waves, storm surge and high tide, coastal flooding is expected. Disruption to power and travel are likely.
• Valid: 20:00 Tuesday 07/12/2021 to 08:00 Wednesday 08/12/2021
• Issued: 09:35 Tuesday 07/12/2021

Oneiric 3

Things should quieten down for the afternoon here in Connacht before winds pick up again later this evening and overnight:

Wind chart for 2pm:

Oscar Bravo

Good few lightning strikes showing up in west Mayo

SleetAndSnow

Cork airport gusting 59kts in the latest update. Can definitely "hear" the wind but it's up higher, the occasional strong gust at my level... If that makes sense

Edit: well the trees just started nearly bending in half.

leahyl

Calm and sunny now in Cork City - in the eye of the storm I guess?

Danno

Is the centre a double-low? One off the west coast of Clare and the other near Mace Head?

Oscar Bravo

Sherkin gusting 71 knots and 10am!

davo2001

https://www.boards.ie/discussion/comment/118282751#Comment_118282751

The eye of the storm won't be anywhere near Cork.

leahyl

https://www.boards.ie/discussion/comment/118282771#Comment_118282771

Ok, well it was very calm there for a bit, has picked up now again

Funsterdelux

Winds have backed to SW direction and picking up too. In North Cork

Tazio

Cork Airport reported wind speeds - some increase from 0900h to 1000h --- wonder what 1100h will yield.

Jan Kroplewski

https://www.boards.ie/discussion/comment/118279726#Comment_118279726

Currently 133 km away From Galway but at the moment from my understanding Galway has now been cleared from the eye at least but Castlebar may have the eye

dacogawa

Lovely shape now, nearly hypnotic.

ninebeanrows

Pressure of 960hPa at Mace Head lowest i've seen so far, low centre must be close to 955hPa

Jan Kroplewski

https://www.boards.ie/discussion/comment/118281200#Comment_118281200

Thanks

DOCARCH

Eye currently looks to be just west of Clew Bay.

SouthWesterly

Why would my pressure be so low at 943hpa.?

I'm 166 m asl

Storm 10

https://www.boards.ie/discussion/comment/118282909#Comment_118282909

Serious looking showers at the end of that centre

Meteorite58

The storms forward motion has slowed down now considerably. Picking up along the South coast. Higher gusts here near Tralee too, no anemometer in action atm.

960.8 hPa Falling Rapidly

CrowdedHouse

https://www.boards.ie/discussion/comment/118282945#Comment_118282945

You could add about 1hpa for every 10m of height for the sea level pressure

pad199207

Sustained winds of 139kmh and gust 161kmh at Fastnet

ninebeanrows

A 70 knot gust at Valentia in last hour.

pad199207

Gust of 189kmh

at the south rock buoy off Co Down 😳 had to look twice

Gaoth Laidir

11 am, 10-minute gust 71 knots at Kerry Airport

METAR EIKY 071100Z 24044G71KT 6000 +RA OVC014 06/04 Q0965=

Elsewhere, 67 knots at Sherkin Island the highest

PsMETAR SHER 071100Z AUTO 25047G67KT 3100NDV BKN021/// 08/05 0975 MSL RERA=

Waterford Airport now gusting only 45 knots.

Pressure at Mace Head now 959 hPa.

dacogawa

Squall line from Derry to Swansea, can't say I've seen that before!

Tazio

Cork Airport reported wind speeds... in the last hour it has moderated somewhat ?

Gaoth Laidir

https://www.boards.ie/discussion/comment/118282347#Comment_118282347

That's obviously your station pressure, not reduced to sea level. Altitute of 160 m amsl would equate to a sea-level pressure of ~964 hPa, which is more reasonable. The conversion is 1 hPa for every 8.1 metres or so.

ascophyllum

GFS 06z showing sustained winds over 80km for Mayo and Sligo tonight - upgrade to a red warning surely?

Hirlam showing this continuing well into Wednesday. I'm using windguru to see those values