Aviation weather thread

JCX BXC · 10-03-2016 10:45pm

Here's something we haven't seen in a while, the famous fog at Cork.

EICK 102130Z 21006KT 0600 R17/0900D R35/0700D FG BKN001 OVC002 09/09 Q1025 NOSIG

JCX BXC · 11-03-2016 6:42pm

Fog Back again at Cork, and fairly dense this time!

EICK 111730Z 21009KT 0300 R17/0400N R35/0350N -DZ FG OVC001 09/09 Q1024 TEMPO 0600.

JCX BXC · 13-03-2016 7:04pm

Operations may be slowed at Dublin this evening,

The 5pm TAF reports tempo fog with a vis of 0400m from 8pm-10am tomorrow.

6pm Metar reports also gives fog in the vicinity.

Gaoth Laidir · 14-03-2016 1:00am

The sky here is a brilliant orange as mist is already starting to form. Dewpoints are 6-7 °C so plenty of scope for thick fog tonight. Could be slow to clear tomorrow too.

smurfjed · 27-03-2016 9:48am

OEJN 270800Z 18028KT 0500 SS VV/// 37/15 Q1006 TEMPO 0200

Gotta love sand storms

:)

Gaoth Laidir · 04-04-2016 7:45am

Fog pretty widespread around the country this morning.

100 m - Knock
200 m - Baldonnel
300 m - Shannon
700 m - Kerry

JCX BXC · 04-04-2016 8:16am

Gaoth Laidir wrote: »

Fog pretty widespread around the country this morning.

100 m - Knock
200 m - Baldonnel
300 m - Shannon
700 m - Kerry

Fog at Kerry is something not so often seen.

JCX BXC · 12-04-2016 9:30pm

Fog Warning for Connacht, Leinster, Cavan, Monaghan, Donegal, Cork, Limerick, Tipperary and Waterford
Widespread fog overnight and on Wedeneday morning, dense in many areas.

Issued:Tuesday 12 April 2016 20:00
Valid:Wednesday 13 April 2016 00:01 to Wednesday 13 April 2016 12:00

Could be interesting, as 3 of Ireland 4 major airports are in this warning, and Shannon is very close to Limerick.

roundymac · 13-04-2016 9:11am

Cork was ok this morning, the EI AMS flight woke me at 06.05 as it "thundered" overhead.;):rolleyes:

JCX BXC · 13-04-2016 9:34am

roundymac wrote: »

Cork was ok this morning, the EI AMS flight woke me at 06.05 as it "thundered" overhead.;):rolleyes:

The expected fog did not happen at anywhere near the expected extent. The fog warning was removed by 8am this morning.

JCX BXC · 13-04-2016 7:01pm

EIDW 131700Z 1318/1418 11007KT 9999 FEW009 BKN040 PROB30 TEMPO 1318/1320 5000 BR BKN009 BECMG 1320/1323 4000 BR BKN008 BECMG 1318/1321 07005KT TEMPO 1321/1404 VRB03KT 0500 FG BKN001 BECMG 1404/1407 07010KT 9999 NSW BKN017

Temporary forecast of fog from 9pm UTC (10pm GMT) to 4am UTC (5am GMT), could slow ops a bit tonight at DUB should it occur.

Pat Dunne · 13-04-2016 8:35pm

Carnacalla wrote: »

EIDW 131700Z 1318/1418 11007KT 9999 FEW009 BKN040 PROB30 TEMPO 1318/1320 5000 BR BKN009 BECMG 1320/1323 4000 BR BKN008 BECMG 1318/1321 07005KT TEMPO 1321/1404 VRB03KT 0500 FG BKN001 BECMG 1404/1407 07010KT 9999 NSW BKN017
Temporary forecast of fog from 9pm UTC (10pm GMT) to 4am UTC (5am GMT), could slow ops a bit tonight at DUB should it occur.

Similar to last night the mist / fog is rated at a probability of 30%.

JCX BXC · 13-04-2016 8:42pm

Pat Dunne wrote: »

Similar to last night the mist / fog is rated as a Probility of 30%.

Didn't spot that Probability 30%.

The fog of Monday morning was a tempo of 30% at the 11pm UTC taf the night before so always subject to happen.

Gaoth Laidir · 13-04-2016 9:05pm

Carnacalla wrote: »

Didn't spot that Probability 30%.

The fog of Monday morning was a tempo of 30% at the 11pm UTC taf the night before so always subject to happen.

PROB30 means it probably won't happen but still warrants a mention. The 23Z DUB and SNN TAFs last night gave mist with PROB30 FG and that is what they got, only mist. Only Cork's fog didn't materialise.

Knock, Mullingar, Ballyhaise, Oak Park and Johnstown Castle all reported visibilities of down to 100-200 m this morning so fog was still pretty widespread.

JCX BXC · 13-04-2016 11:47pm

Amended from the DUB taf 20 minutes ago.

JCX BXC · 25-04-2016 4:25pm

EGPD 251450Z 33027KT 9999 -SHSN FEW010 SCT018CB SCT034 07/M01 Q1007 TEMPO 2000 SHSN BKN008

7c and Snow!

JCX BXC · 28-04-2016 8:35am

BFS reporting heavy snow at 7:20Z.

Quite amazing that its may in 4 days.

Oscar Bravo · 28-04-2016 4:50pm

330 degrees 22knots gusting 34 knots at knock now with a shower of snow. just 2 degrees.

JCX BXC · 28-04-2016 5:00pm

Oscar Bravo wrote: »

330 degrees 22knots gusting 34 knots at knock now with a shower of snow. just 2 degrees.

SHRAGSSN,

Not just snow, quite a mix, Rain, Graupel and Snow!

JCX BXC · 28-04-2016 5:17pm

blast06 wrote: »

https://twitter.com/Irelandwest/status/725717153165545472

Quite the blanket at NOC now! EI911 isn't due until 19:25

-SHSN, 0c and 1200m at 5pm.

Oscar Bravo · 28-04-2016 5:25pm

temp and dew point both 0 at knock now with snow.

JCX BXC · 28-04-2016 5:34pm

Still snowing at NOC at 17:30, vis now 1100m!

Locker10a · 28-04-2016 5:48pm

The EI911 is due to leave for NOC in 10 mins, be interesting to see what happens

JCX BXC · 28-04-2016 5:50pm

Locker10a wrote: »

The EI911 is due to leave for NOC in 10 mins, be interesting to see what happens

Steady stream of showers coming in, alot looking like they may hit NOC!

Irish Steve · 28-04-2016 6:05pm

I've just deleted 4 messages that are off topic sniping, the 2 participants know who they are. If you don't want to be nice to each other, please find somewhere else to be unpleasant to each other. If you can't do that, we can make it easier for you to do so.

JCX BXC · 28-04-2016 6:05pm

No longer snowing at 6pm, temp up to 2c.

smurfjed · 28-04-2016 9:55pm

Graupel

Whats this?

Gaoth Laidir · 28-04-2016 10:01pm

smurfjed wrote: »

Whats this?

It's snowflakes covered in rime. Snowflakes that get caught in strong updrafts and lifted back up into the supercooled region of the cloud, where the water freezes onto them.

METAR code is GS but Met Eireann generally use GS to mean Small Hail, which is diameter <5 mm. GR is >5 mm

smurfjed · 29-04-2016 7:17am

i always understood GR to be HAIL, hence the question, never heard of Graupel:)

JCX BXC · 29-04-2016 8:24am

smurfjed wrote: »

i always understood GR to be HAIL, hence the question, never heard of Graupel:)

GR is hail, GS is small hail/graupel.

Oscar Bravo · 07-05-2016 1:09pm

Heavy rain showers and thunderstorm in the forecast for Aldergrove overnight, albeit only a small chance.

JCX BXC · 07-05-2016 6:08pm

Fog at Cork, vis 300m and rvrs of 350-400m at 6pm.

6pm TAF has the his down to 150m tempo

Oscar Bravo · 09-05-2016 12:32am

Possible thunderstorms forecast at Knock Shannon and Dublin tomorrow afternoon/evening

JCX BXC · 13-06-2016 7:07pm

Knock METAR reports thunderstorm rain at 19:00 hours.

EI911 inbound.

Locker10a · 13-06-2016 7:22pm

Carnacalla wrote: »

Knock METAR reports thunderstorm rain at 19:00 hours.

EI911 inbound.

Landed

Locker10a · 13-06-2016 7:23pm

Hopefully they'll get out ok

JCX BXC · 13-06-2016 9:17pm

Fog patches at DUB again, don't think I've ever seen such a foggy June! Scattered clouds at 200ft and MET vis at 900m, but all IRVR's in excess of 2000m. Think RVP's are in place (Confirmed over ATC), but not LVP's.

JCX BXC · 03-08-2016 1:24am

Midnight TAF forecasts Winds gusting up to 36kts at Shannon and 35kts at both Cork and Dublin for a time tomorrow. A scene rarely seen in August.

Gaoth Laidir · 14-09-2016 11:37pm

Here's a nasty METAR from Kaoshiung airport in SW Taiwan during Supertyphoon Meranti earlier today. Mean 62 kts with a gust >99 kts (off the scale). 45.8 mm of rain in the previous hour too, just for good measure.

METAR RCKH 140500Z 12062GP99KT 090V150 0500 R09/0225 +SHRA SCT003 BKN005 SCT010CB OVC020 24/24 Q0977 WS R09 TEMPO 0800 +SHRA RMK CB S-W-NW A2885 RA AMT 45.8MM=

It has made landfall at Xiamen on mainland China this evening, leading to a 184 kph (99 kt) gust at the synop station there (as reported in the 21Z synop). A friend of mine was texting me from her 9th-floor apartment in a 34-storey building and said she could feel the building moving.

Gaoth Laidir · 07-10-2016 6:38am

Here's a handy TAF for Melbourne Airport, Florida, as Matthew arrives later this morning. 80 gust 100 kts.

TAF KMLB 062332Z 0700/0724 03028G36KT 3SM -SHRA BKN019 OVC026
TEMPO 0700/0704 VRB35G48KT 2SM +SHRA BKN009 BKN016
FM070700 03050G70KT 2SM +SHRA BKN012
FM071100 36080G100KT 1SM +SHRA BKN006
FM071800 25032G42KT 4SM SHRA BKN018=

JCX BXC · 07-10-2016 8:42am

Nice to see you back Gaoth Laidir.

According to M.T Cranium, this could well be a snowy winter (the first half)

If this comes to be true, it'll be interesting to see how Irish airports cope.

Gaoth Laidir · 13-10-2016 6:33am

Look at this TAF for Bermuda Intl as Hurricane Nicole will deal a direct hit strike later today! It us be the longest one I've ever seen, and look at the bit in bold! (BLPY = Blowing sPraY, but it could also mean blowing CanoPY, blowing PYlons, etc. ðŸ˜… )

TAF:
TAF TXKF 122336Z 1300/1324 09025KT 9999 VCSH SCT008 BKN015
TEMPO 1300/1306 3200 SHRA BKN008CB OVC010
PROB40 TEMPO 1300/1306 VRB35G45KT 1600 TSRA OVC005CB
BECMG 1306/1309 12035KT 4800 SHRA SCT005 OVC012
TEMPO 1306/1312 VRB45G60KT 1600 +TSRA BKN005CB OVC012
BECMG 1309/1312 12055KT 3200 SHRA BLPY BKN005CB OVC010
TEMPO 1312/1315 1600 +SHRA BLPY SCT003 OVC005CB
PROB40 TEMPO 1312/1315 VRB60G75KT 0800 +TSRA BLPY OVC003CB
BECMG 1312/1315 12070KT 1600 +SHRA BLPY SCT003 OVC005CB
TEMPO 1315/1318 12075G95KT 0800 +TSRA BLPY SCT002 OVC004CB
PROB40 TEMPO 1315/1318 VRB90GP99KT 0100 +TSRA BLPY OVC001CB
BECMG 1315/1318 30060G75KT 4800 SHRA BLPY SCT005 BKN010CB
BECMG 1321/1324 30040G55KT 9999 VCSH SCT008 BKN012

JCX BXC · 13-10-2016 8:20am

Variable 90kts G99kts, heavy thunderstorm rain, blowing spray, 100m visibility, overcast CB's at 100ft, is a worst forecast possible?

Gaoth Laidir · 13-10-2016 9:05pm

An automatic weather station on Pearl Island, in a bay on the western side of Bermuda, recorded 2-minute sustained winds of 76 knots and a gust of 103 knots.

Meanwhile the airport ONLY measured 67 gust 90 kts.

METAR TXKF 131355Z 08067G90KT 0300 R12/0275N R30/0375N +SHRA OVC005CB 24/24 Q0970 RMK CB 10KM E MOV NE PRESFR=

JCX BXC · 06-01-2017 12:40am

What are the intensities of precipitation required for differentiating light, moderate and heavy?

Bsal · 06-01-2017 3:23am

JCX BXC wrote: »

What are the intensities of precipitation required for differentiating light, moderate and heavy?

Gaoth Laidir · 12-01-2017 8:53am

Dublin is mentioned on Eurocontrol's daily weather assessment this morning. I can't see much disruption occuring myself. Dublin should be able for a cm of snow.

Gaoth Laidir · 12-01-2017 9:08am

TAF EIDW 120500Z 1206/1306 25015KT 9999 SCT020 BKN040 TEMPO 1206/1215 27017G28KT TEMPO 1208/1212 5000 -SHRASN BKN010 PROB40 TEMPO 1212/1218 5000 -SHRASNGS SCT020CB PROB30 TEMPO 1215/1218 2000 -SHSN BKN008 BECMG 1216/1218 26018G32KT TEMPO 1218/1222 2000 -SHSN BKN007 BKN017CB BECMG 1219/1221 32023G38KT BECMG 1222/1224 32020G32KT BECMG 1301/1303 30017KT PROB30 TEMPO 1303/1305 3000 -SHSN BKN007=

(SHANNON) TAF EINN 120500Z 1206/1306 26014KT 9999 SCT020 BKN030 TEMPO 1206/1215 29017G28KT 3000 -SHRASNGS BKN012 BKN018CB PROB40 TEMPO 1212/1215 1500 -SHSNGS BKN007 BECMG 1215/1218 29020G32KT TEMPO 1215/1221 1200 -SHSNGS BKN005 BKN017CB BECMG 1219/1221 32018G32KT BECMG 1222/1224 32012KT=

(CORK) TAF EICK 120500Z 1206/1306 26010KT 9999 SCT012 BKN020 TEMPO 1206/1209 5000 -RA BKN008 PROB30 TEMPO 1206/1209 3000 RASN BKN005 BECMG 1206/1209 29015KT TEMPO 1209/1221 31017G28KT 3000 -SHRASNGS BKN007 SCT016CB TEMPO 1215/1222 1500 -SHSN BKN004 BECMG 1222/1224 34015KT BECMG 1301/1303 31012KT=

(CONNAUGHT) TAF EIKN 120500Z 1206/1306 27015KT 9999 SCT015 BKN020 TEMPO 1206/1213 28016G27KT TEMPO 1206/1222 2000 -SHSNGS BKN006 BKN016CB BECMG 1214/1216 27020G32KT PROB40 TEMPO 1216/1222 1000 SHSN BKN002 BECMG 1217/1219 32022G38KT BECMG 1219/1222 32016G27KT BECMG 1301/1303 31012KT PROB30 TEMPO 1301/1304 2000 -SHSN BKN006=

(BELFAST/ ALDERGROVE) TAF EGAA 120504Z 1206/1306 26012KT 9999 SCT030 PROB40 TEMPO 1206/1306 27017G27KT 1200 SHSN BKN006 BKN012CB PROB30 TEMPO 1209/1224 0300 +SHSN TSSN VV///=

(DONEGAL) TAF EIDL 120500Z 1206/1215 27018KT 9999 SCT020 BKN030 TEMPO 1206/1212 30025G45KT TEMPO 1206/1215 5000 SHRASNGS BKN010 BKN017CB PROB30 TEMPO 1209/1215 2000 TSGS BKN005 BKN010CB BECMG 1213/1215 26025G38KT TEMPO 1214/1215 29030G45KT=

(KERRY (FARRANFORE)) TAF EIKY 120500Z 1206/1215 28015KT 9999 SCT020 BKN030 TEMPO 1206/1210 3000 -SHRASNGS BKN010 BKN018CB TEMPO 1206/1215 29020G32KT TEMPO 1210/1215 1500 -SHSNGS BKN007 BKN017CB=

(SLIGO) TAF EISG 120500Z 1206/1215 26016KT 9999 SCT020 BKN030 TEMPO 1206/1212 27020G32KT TEMPO 1206/1215 5000 SHRASNGS BKN010 BKN017CB PROB30 TEMPO 1209/1215 2000 TSGS BKN005 BKN010CB BECMG 1213/1215 26020G33KT TEMPO 1214/1215 27026G40KT=

(WATERFORD) TAF EIWF 120500Z 1206/1215 27012KT 9999 SCT020 BKN030 PROB30 TEMPO 1209/1212 4000 -SHRASN BKN012 BECMG 1210/1212 30015KT TEMPO 1213/1215 30017G28KT=

(CASEMENT (BALDONNEL) (MIL)) TAF EIME 120500Z 1206/1215 25015KT 9999 FEW015 BKN025 TEMPO 1206/1215 27016G27KT TEMPO 1206/1208 4000 -SHRASN BKN008 TEMPO 1209/1211 2000 -SHSN BKN008 SCT017CB PROB40 TEMPO 1212/1215 2000 -SHSNGS BKN008 SCT020CB=

(BELFAST/ CITY) TAF EGAC 120654Z 1207/1215 26015KT 9999 FEW020 SCT030 PROB30 TEMPO 1207/1215 25017G27KT 2000 SHSN BKN007 BKN014CB=

(CITY OF DERRY AIRPORT/ EGLINTON) TAF EGAE 120654Z 1207/1215 24013KT 9999 FEW020 SCT030 PROB40 TEMPO 1207/1215 25017G27KT 2000 SHSN BKN006 BKN012CB PROB30 TEMPO 1207/1215 0300 +SHSN TSSN VV///=

(VALLEY) TAF EGOV 120443Z 1206/1215 25015G25KT 9999 FEW020 BKN045 TEMPO 1206/1210 7000 SHRA SCT020 PROB30 TEMPO 1210/1215 SCT030CB=

Gaoth Laidir · 12-01-2017 9:10am

Updated short TAFs

(DONEGAL) TAF EIDL 120800Z 1209/1218 27018KT 9999 SCT020 BKN030 TEMPO 1209/1212 30025G45KT TEMPO 1209/1218 5000 SHRASNGS BKN010 BKN017CB PROB30 TEMPO 1209/1218 2000 TSGS BKN005 BKN010CB BECMG 1213/1215 26025G38KT TEMPO 1214/1215 29030G45KT BECMG 1215/1217 34025G40KT TEMPO 1217/1218 35033G50KT=

(KERRY (FARRANFORE)) TAF EIKY 120800Z 1209/1218 28015KT 9999 SCT020 BKN030 TEMPO 1209/1210 3000 -SHRASNGS BKN010 BKN018CB TEMPO 1209/1215 29020G32KT TEMPO 1210/1218 1500 -SHSNGS BKN006 BKN017CB BECMG 1216/1218 29020G38KT=

(SLIGO) TAF EISG 120800Z 1209/1218 26016KT 9999 SCT020 BKN030 TEMPO 1209/1212 27020G32KT TEMPO 1209/1215 5000 SHRASNGS BKN010 BKN017CB PROB30 TEMPO 1209/1218 2000 TSGS BKN005 BKN010CB BECMG 1213/1215 26020G33KT TEMPO 1214/1215 27026G40KT BECMG 1215/1217 31025G38KT TEMPO 1216/1218 34030G42KT=

(WATERFORD) TAF EIWF 120800Z 1209/1218 27012KT 9999 SCT020 BKN030 PROB30 TEMPO 1209/1212 4000 -SHRASN BKN012 BECMG 1210/1212 30015KT TEMPO 1213/1218 30017G28KT TEMPO 1217/1218 3000 -SHSN BKN008 SCT018CB=

(CASEMENT (BALDONNEL) (MIL)) TAF EIME 120800Z 1209/1218 25015KT 9999 FEW015 BKN025 TEMPO 1209/1215 28016G27KT TEMPO 1209/1211 2000 -SHSN BKN008 SCT017CB PROB40 TEMPO 1212/1216 2000 -SHSNGS BKN008 SCT020CB BECMG 1216/1218 26018G32KT TEMPO 1217/1218 2000 -SHSN BKN007 BKN017CB=

(BELFAST/ CITY) TAF EGAC 120654Z 1207/1215 26015KT 9999 FEW020 SCT030 PROB30 TEMPO 1207/1215 25017G27KT 2000 SHSN BKN007 BKN014CB=

(CITY OF DERRY AIRPORT/ EGLINTON) TAF EGAE 120654Z 1207/1215 24013KT 9999 FEW020 SCT030 PROB40 TEMPO 1207/1215 25017G27KT 2000 SHSN BKN006 BKN012CB PROB30 TEMPO 1207/1215 0300 +SHSN TSSN VV///=

(VALLEY) TAF EGOV 120754Z 1209/1218 26015G25KT 9999 FEW020 BKN045 PROB30 TEMPO 1209/1210 7000 SHRA SCT020 PROB30 TEMPO 1210/1214 SCT030CB TEMPO 1214/1218 7000 SHRA SCT030CB=

billie1b · 12-01-2017 10:55am

Gaoth Laidir wrote: »

Dublin should be able for a cm of snow.

Thats what you'd think!!
I've seen a cm of snow turn DUB into chaos of major delays and cancellations

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