WARNING 011500.
WARNING VALID 021500.
STORM WARNING.
SEVERE TROPICAL STORM 2509 KROSA (2509) 975 HPA
AT 34.9N 141.2E SEA EAST OF JAPAN MOVING NORTHNORTHWEST 08 KNOTS.
POSITION GOOD.
MAX WINDS 50 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 210 MILES SOUTHEAST SEMICIRCLE AND 120
MILES ELSEWHERE.
FORECAST POSITION FOR 020300UTC AT 36.5N 143.0E WITH 35 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
975 HPA, MAX WINDS 55 KNOTS NEAR CENTER.
FORECAST POSITION FOR 021500UTC AT 37.9N 146.4E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
975 HPA, MAX WINDS 55 KNOTS NEAR CENTER.
JAPAN METEOROLOGICAL AGENCY.=
WARNING 011200.
WARNING VALID 021200.
WARNING IS UPDATED EVERY 6 HOURS.
STORM WARNING.
SEVERE TROPICAL STORM 2509 KROSA (2509) 975 HPA
AT 34.6N 141.3E SEA EAST OF JAPAN MOVING NORTH 10 KNOTS.
POSITION GOOD.
MAX WINDS 50 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 150 MILES.
FORECAST POSITION FOR 020000UTC AT 36.0N 142.5E WITH 35 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
975 HPA, MAX WINDS 55 KNOTS NEAR CENTER.
FORECAST POSITION FOR 021200UTC AT 37.4N 145.3E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
975 HPA, MAX WINDS 55 KNOTS NEAR CENTER.
EXTENDED OUTLOOK.
FORECAST POSITION FOR 031200UTC AT 40.1N 156.2E WITH 100 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
980 HPA, MAX WINDS 50 KNOTS NEAR CENTER.
FORECAST POSITION FOR 041200UTC AT 42.5N 166.1E WITH 160 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
990 HPA, MAX WINDS 40 KNOTS NEAR CENTER.
FORECAST POSITION FOR 051200UTC AT 43.8N 177.0E WITH 200 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
994 HPA, MAX WINDS 35 KNOTS.
BECOMING EXTRATROPICAL LOW.
JAPAN METEOROLOGICAL AGENCY.=
2:1:31:11:01:00
BT
SECURITE =
MESSAGE FOR METAREA XI (CHINA) ISSUED BY NMC BEIJING
AT 1530UTC AUG.01 2025 =
MESSAGE IS UPDATED EVERY 06 HOURS =
SYNOPSIS VALID 1200UTC AUG.01 =
FCST VALID 1200UTC AUG.02 =
WARNNING=
TROPICAL CYCLONE WARNNING=
STS KROSA 2509(2509) 980HPA AT 34.5N 141.5E
MVG NNE 19KMH AND MAX WINDS 28M/S NEAR CENTER
(SEAS UP TO 6.5M)
AND RADIUS OF 30KTS WINDS
220KM NE
220KM SE
250KM SW
200KM NW
AND RADIUS OF 50KTS WINDS
60KM NE
60KM SE
50KM SW
60KM NW
AND FCST FOR 020000UTC AT 36.3N 142.6E 975HPA
AND MAX WINDS 30M/S NEAR CENTER
AND FCST FOR 021200UTC AT 37.9N 145.7E 980HPA
AND MAX WINDS 28M/S NEAR CENTER=
SUMMARY=
TD(2508) 995HPA AT 31.8N 117.2E MVG NNW 6KMH
AND MAX WINDS 12M/S NEAR CENTER(SEAS UP TO 2.5M)=
SW/SLY WINDS FROM 10 TO 14M/S GUSTS 18M/S SEAS UP
TO 2.0M OVER SOUTHERN PART OF EAST CHINA SEA AND
TAIWAN STRAIT AND NORTHEASTERN PART OF SOUTH CHINA
SEA AND SOUTHWESTERN PART OF SOUTH CHINA SEA AND
SEA WEST OF BONIN ISLANDS AND SEA WEST OF NORTH
MARIANA ISLANDS=
NW/WLY WINDS FROM 10 TO 14M/S GUSTS 18M/S SEAS UP
TO 2.0M OVER SEA EAST OF TAIWAN AND BASHI CHANNEL
AND SEA SOUTH OF JAPAN=
HORIZONTAL VISIBILITY LESS THAN 10KM OVER
NORTHWESTERN PART OF EAST CHINA SEA AND BASHI
CHANNEL AND QIONGZHOU STRAIT AND ANDAMAN SEA AND
THAILAND GULF AND MALACCA STRAIT AND SEA EAST OF
SINGAPORE AND SEA SOUTH OF SUMATERA AND SUNDA
STRAIT AND LAUT JAWA AND SEA SOUTH OF JAWA AND
MAKASSAR STRAIT AND SEA SOUTHWEST OF THE
PHILIPPINES AND LAUT MALUKU AND LAUT BANDA=
FCST=
NORTHERN PART OF EAST CHINA SEA
S WINDS 06 TO 08M/S GUSTS 08 TO 12M/S INCR 08 TO
12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE
OVERCAST VIS GOOD=
SOUTHERN PART OF EAST CHINA SEA
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S INCR 12 TO
16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE
OVERCAST VIS GOOD=
TAIWAN STRAIT
S WINDS 08 TO 12M/S GUSTS 12 TO 16M/S INCR 12 TO
16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE
OVERCAST BECMG MODERATE RAIN VIS GOOD TO MODERATE=
SEA EAST OF TAIWAN
SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE
ROUGH OVERCAST BECMG MODERATE RAIN VIS GOOD TO
MODERATE=
BASHI CHANNEL
SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S SEA STATE
ROUGH MODERATE RAIN VIS MODERATE=
BEIBU GULF
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
MODERATE OVERCAST VIS GOOD=
NORTHWESTERN PART OF SOUTH CHINA SEA
S WINDS VEER SW 08 TO 12M/S GUSTS 12 TO 16M/S SEA
STATE MODERATE OVERCAST VIS GOOD=
NORTHEASTERN PART OF SOUTH CHINA SEA
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
ROUGH MODERATE RAIN VIS MODERATE=
WEST CENTRAL SOUTH CHINA SEA
SW WINDS 12 TO 16M/S GUSTS 16 TO 20M/S DECR 08 TO
12M/S GUSTS 12 TO 16M/S SEA STATE MODERATE CLOUDY
VIS GOOD=
EAST CENTRAL SOUTH CHINA SEA
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
MODERATE CLOUDY VIS GOOD=
SOUTHWESTERN PART OF SOUTH CHINA SEA
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
MODERATE CLOUDY VIS GOOD=
SOUTHEASTERN PART OF SOUTH CHINA SEA
S WINDS VEER SW 06 TO 08M/S GUSTS 08 TO 12M/S SEA
STATE MODERATE CLOUDY VIS GOOD=
SEA SOUTH OF JAPAN
W WINDS 20 TO 24M/S GUSTS 24 TO 28M/S BACK S WINDS
20 TO 24M/S GUSTS 24 TO 28M/S SEA STATE ROUGH
OVERCAST BECMG MODERATE RAIN VIS GOOD TO MODERATE=
SEA EAST OF RYUKYU ISLANDS
SW WINDS VEER W 08 TO 12M/S GUSTS 12 TO 16M/S SEA
STATE ROUGH MODERATE RAIN BECMG OVERCAST VIS
MODERATE TO GOOD=
SEA WEST OF BONIN ISLANDS
SW WINDS BACK S 12 TO 16M/S GUSTS 16 TO 20M/S SEA
STATE VERY ROUGH MODERATE RAIN BECMG OVERCAST VIS
MODERATE TO GOOD=
SEA NORTHEAST OF THE PHILIPPINES
SW WINDS VEER W 08 TO 12M/S GUSTS 12 TO 16M/S SEA
STATE MODERATE MODERATE RAIN VIS MODERATE=
SEA WEST OF NORTHERN MARIANA ISLANDS
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S DECR 06 TO
08M/S GUSTS 08 TO 12M/S SEA STATE ROUGH MODERATE
RAIN BECMG OVERCAST VIS MODERATE TO GOOD=
SEA SOUTHEAST OF INDONESIA
SE WINDS 08 TO 12M/S GUSTS 12 TO 16M/S INCR 12 TO
16M/S GUSTS 16 TO 20M/S SEA STATE MODERATE CLOUDY
VIS GOOD=
SEA SOUTH OF JAWA
E WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
MODERATE CLOUDY VIS GOOD=
SEA SOUTH OF SUMATERA
SE WINDS 06 TO 08M/S GUSTS 08 TO 12M/S INCR 08 TO
12M/S GUSTS 12 TO 16M/S SEA STATE ROUGH MODERATE
RAIN VIS MODERATE=
ANDAMAN SEA
SW WINDS 08 TO 12M/S GUSTS 12 TO 16M/S BACK S
WINDS 08 TO 12M/S GUSTS 12 TO 16M/S SEA STATE
MODERATE CLOUDY VIS GOOD=
EGC:2:1:31:11:01:00
SECURITE.
THIS WARNING IS ISSUED FOR NORTH OF THE EQUATOR AND EAST OF 100E IN
METAREA XI BY JMA.
WARNING AND SUMMARY 011200.
WARNING VALID 021200.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL DEPRESSION 996 HPA
AT 25.7N 135.3E SEA SOUTH OF JAPAN MOVING EAST 14 KNOTS.
POSITION FAIR.
MAX WINDS 30 KNOTS NEAR CENTER.
EXPECTED MAX WINDS 35 KNOTS NEAR CENTER WITHIN NEXT 12 HOURS.
FORECAST POSITION FOR 020000UTC AT 27.7N 137.2E WITH 55 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
FORECAST POSITION FOR 021200UTC AT 30.1N 138.9E WITH 70 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
EXTENDED OUTLOOK.
FORECAST POSITION FOR 031200UTC AT 34.7N 144.7E WITH 110 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
FORECAST POSITION FOR 041200UTC AT 35.2N 153.4E WITH 165 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
FORECAST POSITION FOR 051200UTC AT 35.1N 157.5E WITH 210 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
FORECAST POSITION FOR 061200UTC AT 37.5N 159.9E WITH 280 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
GALE WARNING.
EXPECTED EASTERLY TO NORTHEASTERLY WINDS 30 TO 40 KNOTS WITHIN NEXT
18 HOURS
PREVAILING OVER WATERS BOUNDED BY 19N 176E 19N 180E 15N 180E 15N 176E
19N 176E.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK SEA OF JAPAN YELLOW
SEA EAST CHINA SEA.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 37N 141E 42N 141E
47N 152E 55N 162E 60N 164E 60N 180E 40N 180E 38N 178E 42N 170E 38N
158E 38N 145E 37N 141E.
SUMMARY.
LOW 998 HPA AT 53N 138E ENE 10 KT.
LOW 1006 HPA AT 38N 176E ENE 15 KT.
LOW 982 HPA AT 54N 180E NORTH 10 KT.
TROPICAL DEPRESSION 996 HPA AT 31N 117E ALMOST STATIONARY.
HIGH 1004 HPA AT 40N 129E ALMOST STATIONARY.
HIGH 1018 HPA AT 25N 161E ALMOST STATIONARY.
HIGH 1016 HPA AT 43N 163E ESE 10 KT.
WARM FRONT FROM 38N 176E TO 40N 178E 40N 177W.
COLD FRONT FROM 38N 176E TO 35N 174E 33N 171E 32N 167E.
STATIONARY FRONT FROM 32N 167E TO 32N 164E 34N 162E 36N 157E 37N
149E.
REMARKS.
SEVERE TROPICAL STORM 2509 KROSA (2509) 975 HPA AT 34.6N 141.3E : SEE
TROPICAL CYCLONE WARNING.
TROPICAL STORM IONA: SEE TROPICAL CYCLONE WARNING(WTPA21 PHFO).
HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING
WARNING/INFORMATION FOR THE SOUTH CHINA SEA.
WARNINGS
NIL.
SYNOPSIS (011200UTC) AND 24-HOUR FORECAST
UNSETTLED WEATHER IS AFFECTING SEAS NEAR TAIWAN, LUZON
STRAIT, NORTHERN PART OF THE SOUTH CHINA SEA (SCS) AND GULF
OF TONKIN.
SIGNIFICANT SWELL/HIGH SEAS
NIL.
THUNDERSTORMS/SEVERE WEATHER
SCATTERED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS)
OVER SEAS NEAR TAIWAN, LUZON STRAIT, NORTHERN PART OF THE
SCS AND GULF OF TONKIN.
ISOLATED SQ SH AND TS OVER SEAS NEAR MALAYSIA.
SEA FOG/REDUCED VISIBILITY
VISIBILITY DOWN TO 2000 M IN SQ SH AND TS.
JAPAN METEOROLOGICAL AGENCY.=
40:1:31:11:01:00
HONG KONG METEOROLOGICAL SERVICE PROVIDES THE FOLLOWING
WARNING/INFORMATION FOR THE SOUTH CHINA SEA.
WARNINGS
NIL.
SYNOPSIS (011200UTC) AND 24-HOUR FORECAST
UNSETTLED WEATHER IS AFFECTING SEAS NEAR TAIWAN, LUZON
STRAIT, NORTHERN PART OF THE SOUTH CHINA SEA (SCS) AND GULF
OF TONKIN.
SIGNIFICANT SWELL/HIGH SEAS
NIL.
THUNDERSTORMS/SEVERE WEATHER
SCATTERED SQUALLY (SQ) SHOWERS (SH) AND THUNDERSTORMS (TS)
OVER SEAS NEAR TAIWAN, LUZON STRAIT, NORTHERN PART OF THE
SCS AND GULF OF TONKIN.
ISOLATED SQ SH AND TS OVER SEAS NEAR MALAYSIA.
SEA FOG/REDUCED VISIBILITY
VISIBILITY DOWN TO 2000 M IN SQ SH AND TS.
40:2:1:31:11:01:00
IDY10240
SECURITE
HIGH SEAS FORECAST FOR NORTHERN METAREA 8/10/11
NORTHERN AREA: EQUATOR TO 12S, 90E TO 142E AND SOUTHWARD TO COAST,
125E TO 142E
ISSUED BY THE AUSTRALIAN GOVERNMENT BUREAU OF METEOROLOGY
FOR 24 HOURS COMMENCING 1100 UTC 1 AUGUST 2025
PART 1 WARNINGS
NIL.
PART 2 SITUATION AT 010600 UTC
SOUTHEASTERLY TRADE FLOW THROUGHOUT MUCH OF THE REGION.
LOW 1008HPA NEAR 04S096E, FORECAST 1006HPA NEAR 05S095E AT 021200UTC.
PART 3 FORECAST
SOUTH OF LINE 10S142E 03S132E 06S120E:
SOUTHEASTERLY QUARTER WINDS 20/30 KNOTS. MODERATE TO ROUGH SEAS. LOW
SWELL,
INCREASING TO LOW TO MODERATE SWELL WITHIN 60NM OF LINE 10S126E
11S129E AFTER
020000UTC.
WEST OF LINE EQ097E 12S097E:
SOUTHEASTERLY QUARTER 15/25 KNOTS, BECOMING CLOCKWISE 20/30 KNOTS
WITHIN 180NM
OF LOW. MODERATE TO ROUGH SEAS. LOW TO MODERATE SWELL.
REMAINDER:
WINDS NOT EXCEEDING 20 KNOTS. SLIGHT TO MODERATE SEAS. LOW SWELL,
INCREASING TO
LOW TO MODERATE SWELL WEST OF LINE EQ098E 07S106E 12S108E.
RAIN AREAS, SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MOSTLY NORTH
OF LINE
11S090E 12S098E 07S132E 11S142E. HEAVY AT TIMES IN SOUTHWEST
SEMICIRCLE OF LOW.
VISIBILITY REDUCING BELOW 2NM IN PRECIPITATION.
PLEASE BE AWARE
WIND AND WAVE FORECASTS ARE AVERAGES. WIND GUSTS CAN BE 40 PER CENT
STRONGER
THAN THE FORECAST, AND STRONGER STILL IN SQUALLS AND THUNDERSTORMS.
MAXIMUM
WAVES CAN BE TWICE THE FORECAST HEIGHT.
WEATHER MELBOURNE
THE NEXT ROUTINE FORECAST WILL BE ISSUED AT 20:15 UTC FRIDAY.=