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09-03-2019, 17:02   #931
sryanbruen
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If you either don't have any plans or bored trying to think of something to do, why not pop over to the Weather Rescue and help us learn more about past British/European weather by digitising some station data from the 19th century and early 20th century?

https://www.zooniverse.org/projects/...escue/classify
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09-03-2019, 22:42   #932
nacho libre
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Winter 1878-79
February 1895
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10-03-2019, 23:06   #933
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We've had a particularly wet start to March this year so thought I'd have a look at some rainfall stats, interestingly of the top 100 wettest station reports every single one of them is pre-2000. Seems like we're overdue a very wet March

year rain (mm)  station                         height (m)
1989685.8 M.BALLAGHBEAMA GAP                  311
1994   628 M.CUMMERAGH NO.5                    396
1994   616 M.CUMMERAGH NO.4                    494
1995   588 M.CUMMERAGH NO.4                    494
1981584.2 M.BALLAGHBEAMA GAP                  311
1995   576 M.CUMMERAGH NO.5                    396
1964562.4 GLENVICKEE (CARAGH RIVER AREA)      128
1991   560  M.LOUGH DAN (SCAR MTN.)            610
1994   550  M.LOUGH ESKE (BROCKAHY)            305
1989537.4 CLOONE LAKE (CARAGH RIVER AREA)     122
1989   510 M.CUMMERAGH NO.3                    543
1963   508  M.CUMMERAGH NO.7                   649
1963   508 M.CUMMERAGH NO.4                    494
1989505.9 GOUGANEBARRA                       183
1963505.1 CLOONE LAKE (CARAGH RIVER AREA)     122
1989498.1 KILLARNEY (GORTDROMAKIERY)         181
1963497.7 GLENVICKEE (CARAGH RIVER AREA)      128
1963495.3 M.CUMMERAGH NO.5                    396
1963495.3 M.CUMMERAGH NO.3                    543
1989   483 M.BEENREAGH MTN.                    491
1963482.6 M.BALLAGHBEAMA GAP                  311
1981   470  M.TORC MANGERTON NO.3              808
1978469.9 M.BALLAGHBEAMA GAP                  311
1957469.9 M.CUMMERAGH NO.5                    396
1998   469 M.CUMMERAGH NO.5                    396
1989   460  CLOYNE (BALLYMACANDRICK)           64
1981459.7 GOUGANEBARRA                       183
1992457.9 M.BALLAGHBEAMA GAP                  311
1957457.2 M.CUMMERAGH NO.7                   649
1963457.2 M.TORC MANGERTON NO.3              808
1963457.2 M.CUMMERAGH NO.2                    404
1956457.2 M.CUMMERAGH NO.3                    543
1981   456  M.TORC MANGERTON NO.4A             518
1957452.1 M.BALLAGHBEAMA GAP                  311
1994   452  M.LOUGH DAN (SCAR MTN.)            610
1963451.2 LYRANES (CARAGH RIVER AREA)        85
1963   448  GOUGANEBARRA                       183
1963   447  CASTLEMARTYR (DOWER BR.)             6
1963445.8 WATERVILLE OCTIVE NO.9              110
1989   445 M.CUMMERAGH NO.2                    404
1982444.5 M.BALLAGHBEAMA GAP                  311
1964444.5 M.CUMMERAGH NO.3                    543
1965439.8 GLENVICKEE (CARAGH RIVER AREA)      128
1959439.4 M.BALLAGHBEAMA GAP                  311
1963438.2 LAURAGH G.S.                         8
1963434.3 M.TORC MANGERTON NO.4A             518
1954431.8 M.TORC MANGERTON NO.3              808
1957431.8 M.CUMMERAGH NO.3                    543
1963   430  M.BALLAGHISHEEN GAP                329
1963429.3 CLOYNE (BALLYMACANDRICK)           64
1983   429  M.LOUGH ESKE (BROCKAHY)            305
1981427.6 GAP OF DUNLOE                       34
1954424.2 M.BALLAGHBEAMA GAP                  311
1989423.7 GLENVICKEE (CARAGH RIVER AREA)      128
1994423.5 MAAM VALLEY                         58
1995   422  M.LOUGH DAN (SCAR MTN.)            610
1964421.6 M.BALLAGHBEAMA GAP                  311
1981420.8 CLOONE LAKE (CARAGH RIVER AREA)     122
1995   420  BLESSINGTON G.S.                   206
1981   420 M.BALLINGEARY_(Tooreenaneen)        323
1954419.1 M.CUMMERAGH NO.2                    404
1986   418  M.LOUGH ESKE (BROCKAHY)            305
1994   415 M.BALLAGHBEAMA GAP                  311
1954412.8 M.CUMMERAGH NO.7                   649
1964412.8 LAURAGH G.S.                         8
1978410.3 MAAM G.S.                          18
1991   410 M.CUMMERAGH NO.4                    494
1994408.7 M.MAAM (MT.RINAVORE)                389
1989407.6 GLENCAR (DREENAGH)                  69
1981406.4 CLOYNE (BALLYMACANDRICK)           64
1986406.4 M.BALLAGHBEAMA GAP                  311
1964406.4 M.CUMMERAGH NO.2                    404
1977   405  M.TORC MANGERTON NO.4A             518
1978   405  M.LOUGH ESKE (BROCKAHY)            305
1978403.4 MAAM (AGR.RES.STN.) II             30
1971402.8 M.MAAM (KILMEELICKIN)              314
1986402.6 WATERVILLE OCTIVE NO.10A           163
1994402.6 CLOONE LAKE (CARAGH RIVER AREA)     122
1963401.7 KILLARNEY (B.V.M.PARK)             34
1963401.3 M.INCHIGEELAGH_(Pipe-Hill)          299
1956400.1 M.CUMMERAGH NO.2                    404
1989   400  BALLINTRIDEEN                      91
1989   400 M.CUMMERAGH NO.4                    494
1978   398  M.TORC MANGERTON NO.4A             518
1954396.2 M.CUMMERAGH NO.5                    396
1989   395  M.LOUGH ESKE (BROCKAHY)            305
1986   395 M.CUMMERAGH NO.4                    494
1978393.7 CLOYNE (BALLYMACANDRICK)           64
1954393.7 CASTLEMARTYR (DOWER BR.)             6
1957393.7 M.CUMMERAGH NO.4                    494
1957393.7 M.CUMMERAGH NO.2                    404
1995   393 M.GLENTORNAN (L.NABRUCKBADDY)       366
1986392.9 CLOONE LAKE (CARAGH RIVER AREA)     122
1985   392 M.CUMMERAGH NO.2                    404
1989   392 M.CUMMERAGH NO.5                    396
1985   392 M.CUMMERAGH NO.3                    543
1995   391 M.GLENTORNAN (GROGAN MORE)          442
1989   390 M.BALLINGEARY_(Tooreenaneen)        323
1963389.3 GAP OF DUNLOE                       34
1998   389 M.CUMMERAGH NO.4                    494

Excluding mountainous stations and its even more obvious with almost every record pre-1990

year rain (mm)  station                         height (m)
1964562.4 GLENVICKEE (CARAGH RIVER AREA)      128
1989537.4 CLOONE LAKE (CARAGH RIVER AREA)     122
1963505.1 CLOONE LAKE (CARAGH RIVER AREA)     122
1963497.7 GLENVICKEE (CARAGH RIVER AREA)      128
1989   460  CLOYNE (BALLYMACANDRICK)           64
1963451.2 LYRANES (CARAGH RIVER AREA)        85
1963   447  CASTLEMARTYR (DOWER BR.)             6
1963445.8 WATERVILLE OCTIVE NO.9              110
1965439.8 GLENVICKEE (CARAGH RIVER AREA)      128
1963438.2 LAURAGH G.S.                         8
1963429.3 CLOYNE (BALLYMACANDRICK)           64
1981427.6 GAP OF DUNLOE                       34
1989423.7 GLENVICKEE (CARAGH RIVER AREA)      128
1994423.5 MAAM VALLEY                         58
1981420.8 CLOONE LAKE (CARAGH RIVER AREA)     122
1964412.8 LAURAGH G.S.                         8
1978410.3 MAAM G.S.                          18
1989407.6 GLENCAR (DREENAGH)                  69
1981406.4 CLOYNE (BALLYMACANDRICK)           64
1978403.4 MAAM (AGR.RES.STN.) II             30
1994402.6 CLOONE LAKE (CARAGH RIVER AREA)     122
1963401.7 KILLARNEY (B.V.M.PARK)             34
1989   400  BALLINTRIDEEN                      91
1978393.7 CLOYNE (BALLYMACANDRICK)           64
1954393.7 CASTLEMARTYR (DOWER BR.)             6
1986392.9 CLOONE LAKE (CARAGH RIVER AREA)     122
1963389.3 GAP OF DUNLOE                       34
1992388.2 MAAM VALLEY                         58
1963387.5 KENMARE (DERREEN)                   24
1964387.4 CLOONE LAKE (CARAGH RIVER AREA)     122
1978386.9 GAP OF DUNLOE                       34
1989382.4 KENMARE (DERREEN)                   24
1989381.3 BALLINGEARY_(Voc.Sch.)              91
1963380.6 BALLINGEARY_(Voc.Sch.)              91
1989379.9 KILLARNEY (B.V.M.PARK)             34
1959375.6 LYRANES (CARAGH RIVER AREA)        85
1956374.8 CLOONE LAKE (CARAGH RIVER AREA)     122
1977374.3 LYRANES-UPPER(CARAGH RVR.AREA)     91
1954374.3 CLOONE LAKE (CARAGH RIVER AREA)     122
1989373.7 LYRANES-UPPER(CARAGH RVR.AREA)     91
1963369.3 CLIFDEN RECTORY                    17
1989368.3 MAAM VALLEY                         58
1989367.7 CLONMEL (BALLINGARRANE)            73
1956366.5 GLENVICKEE (CARAGH RIVER AREA)      128
1994365.1 CAMP (GLANNAGALT)                  110
1992363.5 CLOONE LAKE (CARAGH RIVER AREA)     122
1986362.9 DELPHI LODGE                       32
1959362.7 GLENVICKEE (CARAGH RIVER AREA)      128
1981361.4 MAAM (AGR.RES.STN.) II             30
1994357.8 CORNAMONA 62                       30
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11-03-2019, 10:12   #934
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Just on the run up to St Patrick's Day. On average which day is colder, St Patrick or Christmas Day? I do like all the statistics you collect and post it to this thread.
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11-03-2019, 18:19   #935
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From data I've got, the average high & low for Christmas Day are 8.1C and 2.3C, for Patricks Day its 10.2C and 3.7C
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11-03-2019, 20:08   #936
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Anyone have stats for the coldest and warmest St Patrick`s Days in Ireland? I would think 17th March 2018 must be fairly high on the cold list.
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11-03-2019, 21:00   #937
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Not definitive stats but again from what I've got, 1979 had a max of 0.1C at Warrenstown and 0.5C at Dunsany. Last year warmed up in the afternoon once the snow cleared so doesn't really feature



Warmest 19.6C at Ashford in 2005, likely foehn effect

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12-03-2019, 12:50   #938
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Thanks for those stats Donegal Storm, always appreciated and feel free to post some whenever you can or so wish to.

About time I got back to doing some projects I promised like Christmas Day historical data for a certain Irish station. This time, I'm posting about Claremorris with Christmas Day data back to 1950. It must be noted that the station had no available grass min data from 1996 to 2012.

This time I'll include the 1981-2010 averages too as well as the records.

Wettest: 1956 with 33.2mm of rain
Lowest max. temp: 2010 with -2.0c (the only Christmas Day at the station with a subzero max temperature back to 1950)
Highest max. temp: 2018 with 12.4c
Lowest min. temp: 2010 with -15.0c (the only Christmas Day at the station with an air minimum temperature at or below -10c back to 1950)
Highest min. temp: 2011 with 10.1c

Lowest mean temp: 2010 with -8.5c
Highest mean temp: 2011 with 11.0c

Mean: 4.0c
Mean max: 7.1c
Mean min: 1.0c

Attached Images
File Type: png Claremorris Christmas Day data (1950-2018).png (57.7 KB, 2 views)
Attached Files
File Type: xlsx Claremorris Christmas Day data.xlsx (20.6 KB, 4 views)
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14-03-2019, 11:00   #939
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Now here's Christmas Day data for Oak Park. Keep in mind, there was no data available for Christmas Days 1997 to 2003.

Wettest: 2015 with 16.8mm of rain
Lowest max. temp: 2010 with -4.0c (the only Christmas Day at the station with a subzero max temperature back to 1967)
Highest max. temp: 1974 with 14.0c
Lowest min. temp: 2010 with -12.3c (the only Christmas Day at the station with an air minimum temperature at or below -10c back to 1967)
Highest min. temp: 2011 with 10.1c

Lowest mean temp: 2010 with -8.2c
Highest mean temp: 2011 with 11.9c

Mean: 4.0c
Mean max: 7.2c
Mean min: 0.8c

Attached Images
File Type: png Oak Park Christmas Day data.png (42.4 KB, 1 views)
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File Type: xlsx Oak Park Christmas Day data.xlsx (18.2 KB, 5 views)
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15-03-2019, 10:31   #940
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Quote:
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January 1984 was an unprecedented month. It was cold, it was snowy, it was stormy, it was wet. There is no month comparable to it, it is very unique. Westerly to northwesterly winds were the dominant feature. However, these winds brought highly unusual cold polar maritime air from the northwest of the north Atlantic Ocean. The closest comparisons we've seen since then are Winters 2014/15 and 2017/18 (notably January 2018) but these are nothing compared to January 1984. In a decade of generally cold and snowy Winters, January 1984 didn't seem unusual but the fact that the air and widespread snow came from a northwesterly airstream is strange and why I think this month is so interesting.
RTÉ report on January 1984 snow around 15 January.

Quote:
Across the country transport, schools, and sporting fixtures are hard hit by heavy falls of snow.

Nowhere in Ireland has escaped the onslaught of winter and the entire country is covered in snow. The worst affected areas are the midlands and north. In counties Monaghan, Cavan and Donegal the depth of snow is 6 inches or more.

All schools in Monaghan are to close and in Northern Ireland schools in rural areas, particularly around Omagh and Dungannon will also be shut.

Road conditions are extremely bad in the north with both motorways down to one lane of traffic in each direction and many country roads impassable. In the south and midlands, counties Carlow, Kilkenny and Cork have experienced heavy snowfalls however,

All main roads are open and traffic is moving albeit slowly, although there have been a spate of minor accidents.

Traffic has been reduced to a crawl on the Naas dual carriageway and the new bypass. The Automobile Association has advised motorists not to travel unless it is completely necessary as freezing temperatures are turning ice into slush and creating very dangerous conditions.

A number of sporting fixtures have been postponed or cancelled including the Munster Club GAA Football Final and all League of Ireland soccer matches.

On a positive note, air travel has not been too badly affected accept in north where Aldergrove Airport closed. Sea services are also getting back to normal after storms at the weekend.
https://www.rte.ie/archives/2018/121...overs-ireland/
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17-03-2019, 15:23   #941
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Quote:
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The 7-day period, 10th to 16th March 2019, was the windiest 7-day period since 28th February to 6th March 2018 at Malin Head (mean wind speed of 25.1 knots) with a mean wind speed of 24.9 knots. Shows just how benign Winter 2018/19 was.
To continue on from this stat earlier in the Spring thread,

In fact, Winter 2018/19 was the calmest Winter since 2010/11 in terms of mean wind speeds at Malin Head.

Notice how the station has not had a mean wind speed of at least 20 knots since Winter 1999/2000. This is down to two possibilities:

1. Low pressure systems have tended to track more southwards since then away from Malin Head.
2. Winters have calmed down.



Data from Met Éireann.
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17-03-2019, 20:22   #942
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1. Low pressure systems have tended to track more southwards since then away from Malin Head.
2. Winters have calmed down.
Very interesting post Syran! Something I have noticed myself over the last few years too. This almost linear drop in winter wind speeds is ongoing and does seem particularly marked with stations in the northern half Ireland. And as you say, this could be down to the storm depressions tending to move a little further south. It is almost a given now that when there is a 'storm watch' on these threads, that the southern half of Ireland is nearly always at a higher risk from the highest speeds and gusts.
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18-03-2019, 14:25   #943
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Very interesting post Syran! Something I have noticed myself over the last few years too. This almost linear drop in winter wind speeds is ongoing and does seem particularly marked with stations in the northern half Ireland. And as you say, this could be down to the storm depressions tending to move a little further south. It is almost a given now that when there is a 'storm watch' on these threads, that the southern half of Ireland is nearly always at a higher risk from the highest speeds and gusts.
I think it'd be a good or fun idea to compare the mean wind speeds for Winter of several Irish stations distributed around the coasts from 1981-2010/1961-90 averages to 2000-2019 averages. Yes the former averages are 30 year averages but I think it'd be a good idea to see if anything has changed during said periods in terms of the mean wind speeds to prove our theory. Although, another way of proving the theory might be reanalysis or MSLP change?
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20-03-2019, 17:22   #944
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To start off hopefully a long month of articles (I've already informed that there would be a February 1969 article coming - I have a few more up my sleeve), it's the February 2009 cold and snowy spell.

Overall, February 2009 wasn't a particularly cold month as the milder second half offset the cold nature of the first half. The CET was 4.1c which is close to average generally, a little bit milder than average against 1961-90. Must be noted too that this spell was more noted for its snowfalls rather than the depth of cold.

At the very start of the month following a wet end to January for most especially in the south of Ireland, easterly winds became apparent from the get go. Conditions turned colder during the day with snow showers appearing down eastern coasts of the UK and wintry showers started to develop in the east of Ireland after dark.
RTÉ News report on 2 February 2009 about the February 2009 snowfalls.

Quote:
Many roads around the country are impassable after heavy snow and freezing temperatures.

Traffic jams, road closures and minor accidents were experienced in many areas with the worst of the bad weather affecting Leinster and east Munster.

Pupils from schools in Carlow, Kilkenny and Meath had a day of fun in the snow as schools closed.

Transport services were also impacted at airports with Aer Lingus cancelling all flights from Dublin, Cork and Belfast to London Heathrow. Ryanair also cancelled some flights. Bus Éireann services were also hit by the hazardous road conditions.

Jean Byrne of Met Éireann warns of further snow showers to come.
https://www.rte.ie/archives/2019/013...despread-snow/
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25-03-2019, 19:07   #945
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Daily max temp records for Ireland during 2016 and 2017.

Data from Met Éireann (Daily Weather section of "Past Weather Statements") on met.ie.

2018 is completed only up to June. I plan to do 2012 to 2015 too as they have daily temp records in the monthly bulletins too in a similar fashion to the source named above.



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