WEATHER BULLETIN ON METAREA 3
HELLENIC NATIONAL MET. SERVICE
ATHENS, TUESDAY 21 APRIL 2026 / 2200 UTC
- WIND SPEED: BEAUFORT SCALE
- SEA STATE: TOTAL SIGNIFICANT
BE AWARE: WIND GUSTS CAN BE 40 PERCENT STRONGER THAN THOSE GIVEN
HERE AND MAX WAVE HEIGHT UP TO TWICE THAN SIGNIFICANT
PART 1
WARNING NONE
PART 2
GENERAL SYNOPSIS 21-04-26/15 UTC
LOW WITH CENTRE 1008 AND FRONTAL ACTIVITY OVER NORTH OF WEST BLACK
SEA IS MOVING FAST EASTWARDS. EXTENDED LOW WITH CENTRE 1008 OVER
THESSALY WITH FRONTAL ACTIVITY FILLING SLOWLY, IS MOVING EASTWARDS
AND IS EXPECTED 1010 OVER CENTRAL AEGEAN BY 22/03 UTC. NEAR
STATIONARY LOW 1010 OVER TUNISIA. RELATIVELY HIGH PRESSURES 1017
OVER NORTHWEST BALKANS
PART 3
FORECAST UP TO 22 APRIL 22 UTC
NORTH ADRIATIC
EAST NORTHEAST 5 OR 6 OVER EAST 6 OR 7. MODERATE OR ROUGH. LOCALLY
POOR. THUNDERSTORM
CENTRAL ADRIATIC
OVER SOUTH CYCLONIC 4 OR 5 SOON NORTHEAST. OVER NORTH NORTHEAST 5 OR
6 VERY SOON 6 OR 7 SOON 5 OR 6. SLIGHT OR MODERATE OVER NORTH
MODERATE OR ROUGH. LOCALLY POOR. THUNDERSTORM
SOUTH ADRIATIC
NORTH NORTHEAST 4 OR 5 OVER SOUTH TEMPORARILY SOUTH. SLIGHT OR
MODERATE OVER NORTH MODERATE. POOR. THUNDERSTORM
BOOT
NORTH 4 OR 5 OVER SOUTH WEST NORTHWEST SOON NORTH NORTHEAST. SLIGHT
OR MODERATE. CHANCE OF THUNDERSTORM OVER NORTH
MELITA
SOUTH SOUTHWEST 3 OR 4 OVER NORTH EAST NORTHEAST. SLIGHT. LOCALLY
POOR
GABES
SOUTH SOUTHEAST 5 OR 6 SOON 4 OR 5 LATER NORTHEAST. MODERATE.
LOCALLY POOR
SIDRA
OVER NORTH SOUTH SOUTHWEST 5 SOON WEST SOUTHWEST. OVER SOUTH
SOUTHEAST 5 OR 6 LATER 5. MODERATE OVER SOUTH UP TO ROUGH. LOCALLY
POOR
NORTH IONIO
SOUTH SOUTHEAST 4 OR 5 SOON OVER WEST NORTH. MODERATE. LOCALLY POOR
OVER EAST PROBABLY UP TO VERY POOR. CHANCE OF THUNDERSTORM OVER
NORTH
SOUTH IONIO
SOUTH SOUTHWEST 4 OR 5. SLIGHT OR MODERATE. PROBABLY LOCALLY POOR
PATRAIKOS
WEST SOUTHWEST 4 OR 5 SOON VARIABLE 3 OR 4. SLIGHT. LOCALLY POOR
PROBABLY UP TO VERY POOR
KORINTHIAKOS
WEST NORTHWEST 5 OR 6 SOON 4 OR 5. MODERATE
KITHIRA SEA
WEST 4 OR 5 AND EAST OF 22.30 5 OR 6 SOON 4 OR 5. SLIGHT OR MODERATE
OVER EAST MODERATE
SOUTHWEST KRITIKO
WEST SOUTHWEST 4 OR 5 OVER WEST SOUTH SOUTHWEST 5. SLIGHT OR
MODERATE. PROBABLY LOCALLY POOR
SOUTHEAST KRITIKO IERAPETRA
WEST SOUTHWEST 4 OR 5 OVER SOUTH NORTH NORTHWEST 4. SLIGHT OVER
NORTH UP TO MODERATE. PROBABLY LOCALLY POOR
TAURUS
WEST SOUTHWEST 3 OR 4 SOON VARIABLE. SLIGHT. LOCALLY POOR
DELTA
WEST NORTHWEST 3 OR 4 SOON WEST SOUTHWEST. SLIGHT. PROBABLY LOCALLY
POOR
CRUSADE
WEST SOUTHWEST 3 OR 4 OVER SOUTH NORTHWEST. SLIGHT. PROBABLY LOCALLY
POOR
KASTELLORIZO SEA
WEST SOUTHWEST 4 OR 5 SOON 3 OR 4 TEMPORARILY NORTHWEST. SLIGHT.
LOCALLY POOR
RODOS SEA
WEST SOUTHWEST 3 OR 4. SLIGHT. LOCALLY POOR
KARPATHIO
WEST SOUTHWEST 3 OR 4 VERY SOON SOUTH SOUTHWEST. SLIGHT. PROBABLY
LOCALLY POOR
WEST KRITIKO
WEST SOUTHWEST 5 OR 6. MODERATE. PROBABLY LOCALLY POOR
EAST KRITIKO
WEST NORTHWEST 4 OR 5 VERY SOON WEST SOON 3 OR 4. SLIGHT OR
MODERATE.
SOUTHWEST AEGEAN
SOUTH OF 37.00 WEST SOUTHWEST 5 OR 6. NORTH OF 37.00 NORTH NORTHWEST
4 VERY SOON SOUTHWEST 4 OR 5. SLIGHT OR MODERATE OVER SOUTH MODERATE
SOUTHEAST AEGEAN IKARIO
WEST SOUTHWEST 4 OR 5 AND WEST OF 24.50 5 OR 6 SOON 4 OR 5. MODERATE
SAMOS SEA
SOUTH 4 OR 5. SLIGHT OR MODERATE. LOCALLY POOR
SARONIKOS
NORTHWEST 4 OR 5 SOON 3 OR 4. SLIGHT
SOUTH EVVOIKOS
SOUTH 4 OR 5 SOON NORTH NORTHEAST 3 OR 4. SLIGHT
KAFIREAS STRAIT
SOUTHWEST 4 OR 5 VERY SOON NORTHWEST. SLIGHT
CENTRAL AEGEAN
SOUTH SOUTHWEST 5 OR 6 VERY SOON CYCLONIC 5. MODERATE. PROBABLY
LOCALLY POOR
NORTHWEST AEGEAN
NORTH NORTHEAST 4 OR 5 VERY SOON 5 OR 6 OVER NORTHWEST NORTHWEST.
MODERATE. LOCALLY POOR. LOCALLY THUNDERSTORM
NORTHEAST AEGEAN
NORTH NORTHEAST 5 OR 6 VERY SOON NORTHEAST 6. MODERATE OR ROUGH.
LOCALLY POOR. LOCALLY THUNDERSTORM
THRAKIKO
NORTHEAST 5 OR 6. MODERATE OVER SOUTH UP TO ROUGH. LOCALLY POOR.
THUNDERSTORM
THERMAIKOS
VARIABLE 3 OR 4 VERY SOON NORTH NORTHWEST 4 OR 5 SOON 5 OR 6. SLIGHT
OR MODERATE. LOCALLY POOR. THUNDERSTORM
MARMARA
NORTHEAST 5 OR 6. MODERATE. LOCALLY POOR. THUNDERSTORM
WEST BLACK SEA
NORTH NORTHEAST 4 OR 5 OVER EAST NORTH NORTHWEST 5 OR 6 SOON 4 OR 5.
SLIGHT OR MODERATE OVER EAST MODERATE. LOCALLY POOR. THUNDERSTORM
EAST BLACK SEA
CYCLONIC 5 OR 6 SOON NORTH NORTHWEST 4 OR 5. MODERATE. LOCALLY POOR.
THUNDERSTORM
OUTLOOK FOR THE NEXT 12 HOURS
GALE FORCE WINDS NOT EXPECTED=
Weather bulletin on METAREA 3,
METEO-FRANCE Toulouse, Tuesday 21 April 2026 at 21 UTC
Wind speed in BEAUFORT SCALE.
Sea state in DOUGLAS SCALE.
Please be aware, wind gusts can be a further 40 percent stronger than
the averages given here, and maximum waves may be up to twice the
significant height.
Part 1 : NO WARNING.
Part 2 : General synopsis, Tuesday 21 at 12 UTC
Weak gradient of pressure near 1010-1015 over basin. Shallow low 1009
over algerian coasts this evening, filling Wednesday morning. High in
north of Italy, building gradually and expected 1020 Wednesday.
Part 3 : Area forecasts to Thursday 23 at 00 UTC
EAST OF CABRERA.
East or Northeast 2 to 4 from north to south, decreasing 2 or 3 in
morning.
Smooth, locally slight in south overnight.
BALEARES.
Variable mainly Southerly 1 to 3, at times 4, backing gradually East
or Northeast 3 to 5 from northeast in afternoon, at times 6 at end.
Gusts.
Smooth, becoming smooth or slight Wednesday evening.
Poor vis due to some coastal fog patches. Moderate or poor vis in
some thundery showers in late afternoon near coasts.
MINORQUE.
Southerly 2 to 4, decreasing temporarily 1 to 3 in late night, then
backing East or Northeast 2 to 4 in afternoon, at times 5 at end.
Smooth, becoming smooth or slight from north Wednesday evening.
Poor vis due to some fog patches in north, then everywhere at end.
LION.
Cyclonic 2 to 4, increasing 3 to 5 in late night, then becoming
Easterly in afternoon.
Smooth or slight, becoming slight at end.
Poor vis due to some fog patches.
PROVENCE.
Variable 1 to 3, increasing Easterly 3 or 4 in late night, then 5 or
6 in late morning. Gusts.
Smooth or slight, becoming slight or moderate in afternoon.
Poor vis due to fog patches, and locally in thundery showers near
coast in northwest in daytime.
LIGURE.
Increasing gradually Northeasterly 2 to 4 in first part of night,
then 4 or 5 in late night, at times 6. Gusts.
Smooth or slight, becoming slight or moderate in morning.
Poor vis in thundery showers in second part of night.
CORSE.
Variable 1 to 3, increasing Northeasterly 3 to 5 in late night, then
5 or 6 in north and leeward strait in daytime, at times 7. Gusts.
Smooth overnight, becoming gradually slight or moderate in daytime.
Poor vis due to some fog patches in north overnight, then in some
thundery showers in north in late afternoon.
SARDAIGNE.
Variable 1 to 3, becoming Northeasterly 2 to 4 in late morning, then
increasing locally 5 or 6 in late afternoon in northeast. Gusts.
Smooth, becoming slight or moderate in north in afternoon.
Poor vis due to some fog patches in north.
MADDALENA.
Variable 1 to 3, increasing gradually North or Northeast 2 to 4 in
morning, then 4 or 5 in afternoon, at times 6 at end in north.
Gusts.
Smooth, becoming smooth or slight in afternoon, locally moderate in
north at end.
Poor vis due to some fog patches overnight, then in some thundery
showers in north in late afternoon.
ELBE.
Variable 1 to 3 at first, increasing East or Northeast 5 or 6 in
north in second part of night, then Northeasterly 3 to 5 at times 6
everywhere in daytime. Gusts.
Smooth or slight, becoming slight at end.
Moderate or poor vis in some showers in north in second part of night
and morning, at times thundery.
ALBORAN.
Westerly 2 to 4, at times 5 leeward strait.
Smooth or slight.
Moderate or poor vis due to some fog patches overnight and in
morning.
PALOS.
- In west : becoming mainly Southwesterly 2 or 3 overnight, at times
4, then Variable 1 to 3 mainly South at end.
- In east : East or Northeast 3 or 4, veering West or Southwest 2 to
4 from west in second part of night, at times 5 near coasts, then
backing East or Northeast 3 or 4 at end.
Smooth or slight, decreasing smooth in late afternoon.
Moderate or poor vis due to some fog patches.
ALGER.
East 3 or 4, veering gradually West or Northwest from west in second
part of night, at times 5 near coasts, then backing East 2 to 4 in
west at end.
Smooth or slight, decreasing smooth at end.
Moderate or poor vis due to some fog patches.
WEST OF CABRERA.
Northeasterly 2 to 4, becoming temporarily Variable mainly Southerly
2 or 3 in morning, then Southeasterly at end.
Smooth or slight, decreasing smooth in afternoon.
Moderate or poor vis due to some fog patches in daytime.
ANNABA.
- In west : East 3 or 4, becoming Cyclonic 2 to 4 in afternoon,
locally Westerly 5 near coast.
- In east : East or Northeast 2 or 3, increasing Easterly 3 or 4 at
end, locally 5 in far northeast.
Smooth or slight.
Moderate or poor vis due to some fog patches.
TUNISIE.
Mainly Easterly 1 to 3, increasing Northeasterly 3 to 5 in late
afternoon.
Smooth, becoming smooth or slight at end.
Moderate or poor vis due to some fog patches.
CARBONARA.
Variable 1 to 3, becoming North or Northeast 2 to 4 in afternoon,
then increasing 3 to 5 at end.
Smooth, becoming smooth or slight at end.
Moderate or poor vis due to some fog patches, and in some showers at
end.
LIPARI.
Variable 1 to 3, increasing Northerly 2 to 4 in afternoon, but
locally South or Southwest 5 or 6 leeward Messina strait, then
increasing East or Northeast 4 or 5 in north at end, at times 6.
Gusts.
Smooth, becoming smooth or slight at end.
Moderate or poor vis due to some fog patches.
CIRCEO.
Variable 1 to 3, becoming temporarily Northwesterly 2 to 4 at midday,
then veering Northeasterly 3 to 5 at end, at times 6. Gusts.
Smooth, becoming smooth or slight at end.
Moderate or poor vis due to some fog patches, and in some showers in
late afternoon.
Part 4 : outlook for next 24 hours
Northeasterly flow moderate or fresh, with threat of near gale around
Corsica in late night, then in southwest of basin Thursday
afternoon.