TROPICAL CYCLONE ADVISORY: ABPW10 PGTW 311800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS REISSUED/311800ZAUG2026-010600ZSEP2026// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/310721ZAUG2026// NARR/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 94W) PREVIOUSLY LOCATED NEAR 20.6N 133.3E IS NOW LOCATED NEAR 21.6N 132.7E, APPROXIMATELY 268 NM SOUTH-SOUTHEAST OF MINAMI DAITO JIMA. THE SYSTEM IS CURRENTLY CLASSIFIED AS A MONSOON DEPRESSION, GENERALLY CHARACTERIZED AS A LARGE CYCLONIC CIRCULATION, GREATER THAN 600NM DIAMETER, WITH ELEVATED WINDS OVER THE SOUTHEASTERN PERIPHERY AND A WEAK CORE OF LIGHT WINDS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A PARTIALLY EXPOSED, BROAD AND ELONGATED LOW-LEVEL CIRCULATION CENTER (LLCC), WITH A LARGE WIND FIELD AND PERSISTENT CONVECTION ALONG BOTH ENDS OF THE CIRCULATION. THE SYSTEM IS LOCATED ALONG THE MONSOON TROUGH, WHICH EXTENDS FROM TAIWAN TO THE MARIANA ISLANDS. OVER THE NEXT 12-24 HOURS, THE CENTER OF THE LLCC WILL BE PRONE TO SHIFTING ALONG THIS TROUGH AXIS, EITHER TOWARD THE WEST AND CLOSER TO OKINAWA OR EAST AND FURTHER AWAY. THE ENVIRONMENTAL ANALYSIS OF THE AREA INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT WITH LOW (10-15 KTS) VERTICAL WIND SHEAR (VWS), WARM (29-30 C) SEA SURFACE TEMPERATURES, AND STRONG EQUATORWARD OUTFLOW IN THE UPPER LEVELS, OFFSET BY A NARROW BAND OF DRY AIR SEPARATING THE MOIST WESTERLY FLOW FROM THE CIRCULATION. THE RADIUS OF MAXIMUM WINDS IS CURRENTLY OVER 100 NM. HOWEVER, ONLY A SLIGHT TIGHTENING OF THE WIND FIELD IS NEEDED TO DESIGNATE THE SYSTEM AS A TROPICAL DEPRESSION. WHILE GLOBAL DETERMINISTIC AND ENSEMBLE MODELS AGREE ON GRADUAL CONSOLIDATION AS THE SYSTEM REMAINS GENERALLY QUASI- STATIONARY, THE PRECISE FORMATION LOCATION ALONG THE TROUGH AXIS REMAINS LESS CERTAIN. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1001 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS HIGH. SEE REF A (WTPN21 PGTW 310730) FOR FURTHER DETAILS. (2) THE AREA OF CONVECTION (INVEST 96W) PREVIOUSLY LOCATED NEAR 23.0N 117.9E IS NOW LOCATED NEAR 22.7N 117.8E, APPROXIMATELY 247 NM SOUTHWEST OF TAIPEI, TAIWAN. ANIMATED ENHANCED MULTI-SPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A SLOWLY CONSOLIDATING CIRCULATION OBSCURED BY DEEP CONVECTION. A 310130Z METOP-C ASCAT PASS REVEALS ELEVATED WINDS ALONG THE NORTH-NORTHEASTERN PERIPHERY OF A BROAD LOW- LEVEL CIRCULATION. ENVIRONMENTAL ANALYSIS OF THE AREA IS FAVORABLE WITH LOW (10-15 KTS) VERTICAL WIND SHEAR, WARM (28-29 C) SEA SURFACE TEMPERATURES, MODERATE RADIAL OUTFLOW ALOFT, AND ROBUST AMOUNTS OF MOISTURE IN THE ATMOSPHERE. GLOBAL DETERMINISTIC AND ENSEMBLE MODELS AGREE ON STEADY DEVELOPMENT OF THE SYSTEM, WITH THE EC ENSEMBLE BEING THE MOST AGGRESSIVE, PORTRAYING THE INTENSIFICATION TIMELINE. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS MEDIUM. (3) THE AREA OF CONVECTION (INVEST 17W) PREVIOUSLY LOCATED NEAR 21.0N 110.7E IS NOW LOCATED NEAR 20.1N 110.2E, APPROXIMATELY 07 NM NORTHWEST OF HAIKOU, HAINAN. ANIMATED ENHANCED MULTI-SPECTRAL SATELLITE IMAGERY (MSI) REVEALS THAT THE REMNANTS OF 17W HAVE EMERGED OVER WATER AS A BROAD MID- TO UPPER-LEVEL CIRCULATION. ENVIRONMENTAL ANALYSIS REVEALS 17W SITS IN A POCKET OF LOW TO MODERATE (15-20 KTS) VERTICAL WIND SHEAR, WARM (28-29 C) SEA SURFACE TEMPERATURES, MODERATE EQUATORWARD OUTFLOW, AND ABUNDANT MOISTURE. GLOBAL DETERMINISTIC MODELS INDICATE THAT 17W HAS A WINDOW OF OPPORTUNITY FOR REDEVELOPMENT WITHIN THE NEXT 24-36 HOURS. 17W IS EXPECTED TO TRACK NORTHEASTWARD ALONG THE CHINESE COAST, WHERE IT MAY BRIEFLY REDEVELOP INTO A TROPICAL CYCLONE BEFORE WASHING OUT INTO THE STRONG SOUTHWESTERLY FLOW. ENSEMBLE MODELS ARE ALSO INDICATIVE OF POTENTIAL REDEVELOPMENT AND A GENERALLY NORTHEASTWARD TRACK. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 997 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS MEDIUM. (4) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: (1) AN AREA OF CONVECTION (INVEST 20W) HAS PERSISTED NEAR 40.2N 166.7E, APPROXIMATELY 832 NM SOUTHWEST OF KISKA ISLAND. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL CYCLONE, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS SUBTROPICAL STORM BANG- LANG WITH A HIGHLY ELONGATED CIRCULATION CENTER WITH PERSISTENT CONVECTION SHEARED TO THE NORTHEAST. THE ELONGATED CIRCULATION IS FURTHER EVIDENT BY A 310924Z METOP-C ASCAT PASS ALSO REVEALING ELEVATED WINDS SURROUNDING THE LOW-LEVEL CIRCULATION. ENVIRONMENTAL ANALYSIS OF THE AREA INDICATES HIGHLY UNFAVORABLE CONDITIONS FOR TRANSITION TO A TROPICAL CYCLONE WITH HIGH (25-35 KTS) SOUTHWESTERLY VERTICAL WIND SHEAR, COLD (23-25 C) SEA SURFACE TEMPERATURES, AND DRY AIR ALONG THE WESTERN PERIPHERY. GLOBAL DETERMINISTIC MODELS PREDICT EXTRATROPICAL TRANSITION AS 20W TRANSITS NORTHEASTWARD AND POTENTIALLY INTENSIFIES THROUGH AN INCREASINGLY BAROCLINIC ENVIRONMENT. GLOBAL ENSEMBLE MODELS ARE IN AGREEMENT ON THE TRACK OF THE SYSTEM TOWARD THE ALEUTIAN ISLANDS. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 38 TO 43 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 995 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (2) AN AREA OF CONVECTION (REMNANTS 21W) HAS PERSISTED NEAR 34.9N 167.7E, APPROXIMATELY 867 NM WEST-NORTHWEST OF MIDWAY ISLAND. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL DEPRESSION, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A COMPACT, FULLY EXPOSED LOW-LEVEL CIRCULATION CENTER. ENVIRONMENTAL ANALYSIS DEPICTS UNFAVORABLE CONDITIONS FOR DEVELOPMENT WITH POOR UPPER-LEVEL OUTFLOW, HIGH VERTICAL WIND SHEAR (25-30 KTS), AND COOL SEA SURFACE TEMPERATURES (25-26 C). ALL DETERMINISTIC AND ENSEMBLE GUIDANCE SUGGEST THERE IS A VERY LOW LIKELIHOOD OF 21W REDEVELOPING ANY TROPICAL CHARACTERISTICS AS IT QUICKLY TRANSITS NORTHWARD IN THE MID-LATITUDE BAROCLINIC ZONE. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 28 TO 33 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1001 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (3) NO OTHER SUBTROPICAL SYSTEMS. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: ADDED AREA IN 1.C.(2) AS A LOW.// NNNN
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METRIC | IMPERIAL
Updated: 09/01/2026 @ 4:00am  
Temperature Current Conditions Forecast / Storm Prediction
Outside Temperature: Colder 0.1°C than last hour.

28.0°C

Heat Index:  34.1°C
Feels like:  34°C
Warm
Indoor Temperature

86.5°C

Max Humidex:  42.1°C
Indoor Humidity: %
High Today
28.2°C
3:11 AM
Low Today
27.9°C
12:00 AM
Yest High
31.7°C
12:18 PM
Yest Low
27.1°C
12:39 AM
Sta* High
37.0°C
4/28/2026
Sta* Low
0.0°C
6/27/2026
Space Weather Status
X-Ray: B6.0 Max: C2.6
NORMAL
Geomagnetic Field: 1.67
QUIET
Partly cloudy Partly cloudy ,
Partly cloudy

Wind from SSW Wind:  SSW
17.3

Gusting to:
28.1 km/h
Current Rain Rain Total:
0.0 mm
Rain Warning Rain Rate:
Chandler Burning Index: LOW Current CBI
Fire Danger:
-0.7 % of 100%
LA NINA / EL NINO
Tuesday
Rain, Partially cloudy rain
Rain, Partially cloudy with 30°C
27°C
Wednesday
Rain, Partially cloudy rain
Rain, Partially cloudy with 30°C
27°C
Thursday
Rain, Partially cloudy rain
Rain, Partially cloudy with 29°C
27°C
VOLCANO THERMAL ALERT STATUS
TAAL
Volcano Alert Status
MAYON
Volcano Alert Status
PINATUBO
Volcano Alert Status
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.1°C since last hour. 26.6°C
Last Hour: Increased 0.1°C since last hour. 0.1°C
High 12:05 AM: 27.1°C
Low 3:29 AM: 26.2°C
Record High: 31.0°C on
May-26-2026
Record Low: 0.0°C on
Jun-27-2026
Wetbulb: 27.0°C


Today: 0.00 mm
Yesterday: 1.80 mm
Last 7 Days: 487.50 mm
Sep Rain: 0.00 mm
Sep to Date
  Avg:10
0.00 mm
Sep to Date
  Diff from Avg:10
No Change 0.00 mm
Sep Avg: 616.30 mm
Diff from Avg: Under 616.3 mm for the month 616.30 mm
Season:1 2753.1 mm
YTD
  Avg:11
2.00 mm
YTD
  Diff from Avg:11
Over 2751.1 mm for the year 2751.10 mm
Last Rain
Time/Date:
Aug-31-2026
at 8:59 AM
98 rain days in 2026
1 day in September
0 days since last rain
Current: SSW  17.3 km/h
Highest Speed: 30.5 km/h
1Hr Average: 21.6 km/h
Wind Run: 75.23 km
Wind Gust
Current: 28.1 km/h
Today: 68.5 km/h 3:35 AM
Month: 68.4 km/h Sep-1
Year: 125.8 km/h Aug-10
Record Gust: 125.8 km/h
Aug-10-2026
Sunlight:
12 hrs 24 min 33 sec
of Sunlight Today
Which is 46 sec Shorter
Than Yesterday


(Noon)
graph (Midnight)

Highslide JS
Morning Crescent, 19 days, 2 hours, 43 minutes in cycle
5%
Illuminated
Outside Humidity Barometer
Current: Increased 1% since last hour. 92%
Last Hour: Increased 1% since last hour. 1%
High 12:00 AM: 95%
Low 3:29 AM: 89%
Record High: 99%
Dec-10-2025
Record Low: 0%
May-5-2026
Current: Falling 0.1  hPa/hr 1005.2 hPa
Last Hour: Steady
High 12:03 AM: 1006.1
Low 3:09 AM: 1005.0
Record High: 1017.0 hPa
Jan-24-2026
Record Low: 941.0 hPa
Jun-27-2026
Cooling Degree Days Tide Heat Index Air Quality
Today: 1.5
Sep: 1.5
2026 to Date: 2160.3
Heating Degree Days
2026 to Date: 0.0

2 hours, 8 minutes to low tide at
06:28 AM PST


Current: 34.1°C
High 12:00am: 34.7°C
Yesterday: 44.5°C
Record: 56.5°C
May-26-2026

167

Unhealthy

PM2.5: 85.63 ug/m3 PM10: 109.13 ug/m3

Last Updated: 2026-09-01 04:20:03 PHT
UV Summary/Forecast Solar Summary
High Yest:   13.0 @ 11:22 AM
Sep-01

12.8
Sep-02

12.9
Sep-03

13.2
High Yest:   865.4 @ 11:22 AM
Sun Hours Today:
00:00
   This Month: 37:52 Hrs
Rise: 5:44 am  Set: 6:08 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Early Morning
YTD Avg Temp: 28.3°C
Sunrise: 5:44 am
Sunset: 6:08 pm
Moonrise: 8:47 pm
Moonset: 8:55 am
Full Moon: 04:19 UTC August 28 2026
Next Eclipse:
Image
06 Feb 2027 (158 days away): Annular solar eclipse Sat, 06 Feb 2027 11:59:59 PM PST
Updated at Midnight
Current ET: 1.00 mm
7-Days Rain: 487.50 mm
7-Days ET: 6.20 mm
7-Day:  481.3 mm water in excess of what evaporated in last 7 days. 481.3 mm
September:  186.1 mm water in deficit of what evaporated this month. 186.1 mm
Solar HF Condition
HIGHS: LOWS:
37.0°C
Apr-28-2026
0.0°C
Jun-27-2026
Daytime Records
  34.2°C
May-03-2026
  23.4°C
Dec-20-2025
Nitetime Records
  31.6°C
Apr-05-2026
  23.4°C
Jan-02-2026
ICN:4 | S3C2:5 | Ajax 3.xx
ISS:Ok | CON:%vpconsolebattery% | RCP:%vpreception2%
METRIC | IMPERIAL
Updated: 09/01/2026 @ 4:00am  
1 Rain season in the Philippines: June 1st to Oct 31st.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index is provided by Luftdaten System esp8266 and is updated every 5 mins..   10 Historical average only to day 1 of just the month of September for this station since 2016.   11 Historical average rain this season to day 1 of September for this station since 2016.
 VC Weather Forecast  -   with local Weather Outlook for Tuesday & Wednesday
Tuesday
Rain, Partially cloudy rain
Rain, Partially cloudy
30°C
27°C
VC forecast: Partly cloudy throughout the day with strong storms possible. Chance of precipitation (rain) 100%. High: 30°C. Low: 27°C. Wind SW 32->61 km/h. UV Index 8.
Local Weather Advisory:
Issued: 4:00 PM, 31 August 2026 SYNOPSIS:At 3:00 PM today, the center of Tropical Depression "PILANDOK" was estimated based on all available data at 1,145 km East of Extreme Northern Luzon (21.6°N, 132.9°E) with maximum sustained winds of 55 km/h near the center and gustiness of up to 70 km/h. It is moving North Northwestward at 10 km/h. Southwest Monsoon affecting Luzon and the western section of Visayas.
Wednesday
Rain, Partially cloudy rain
Rain, Partially cloudy
30°C
27°C
VC forecast: Partly cloudy throughout the day with storms possible. Chance of precipitation (rain) 100%. High: 30°C. Low: 27°C. Wind SW 38->64 km/h. UV Index 9.
 VC Short Term Weather Forecast
Thursday
Rain, Partially cloudy rain
Rain, Partially cloudy
Friday
Rain, Overcast rain
Rain, Overcast
Saturday
Rain, Overcast rain
Rain, Overcast
Sunday
Rain, Overcast rain
Rain, Overcast
Monday
Rain, Freezing Drizzle/Freezing Rain, Partially cloudy rain,freezingrain
Rain, Freezing Drizzle/Freezing Rain, Partially cloudy
Tuesday
Rain, Partially cloudy rain
Rain, Partially cloudy
Wednesday
Rain, Overcast rain
Rain, Overcast
29°C
27°C
28°C
27°C
28°C
26°C
28°C
26°C
29°C
27°C
28°C
26°C
27°C
25°C
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