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2026-08-21 19:18 PM ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Threshold Reached: 2026 Aug 21 1105 UTC Station: GOES-19 Comment: TROPICAL CYCLONE ADVISORY: ABPW10 PGTW 211100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS REISSUED/211100Z-220600ZAUG2026// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/210751ZAUG2026// REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/210752ZAUG2026// NARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 21AUG26 0600Z, TROPICAL STORM 17W (SAUDEL) WAS LOCATED NEAR 14.9N 148.5E, APPROXIMATELY 221 NM EAST-NORTHEAST OF ANDERSEN AFB, AND HAD TRACKED NORTH- NORTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 60 KNOTS GUSTING TO 75 KNOTS. SEE REF A (WTPN31 PGTW 210900) FOR FURTHER DETAILS. (2) AT 21AUG26 0600Z, TROPICAL DEPRESSION 18W (EIGHTEEN) WAS LOCATED NEAR 20.6N 108.6E, APPROXIMATELY 153 NM EAST OF HANOI, VIETNAM, AND HAD TRACKED NORTHWARD AT 03 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 30 KNOTS GUSTING TO 40 KNOTS. SEE REF B (WTPN32 PGTW 210900) FOR FURTHER DETAILS. (3) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) AN AREA OF CONVECTION (INVEST 94W) HAS PERSISTED NEAR 26.1N 125.1E, APPROXIMATELY 144 NM WEST OF KADENA AIR FORCE BASE. THE SYSTEM IS CURRENTLY CLASSIFIED AS A MONSOON DEPRESSION, GENERALLY CHARACTERIZED AS A LARGE CYCLONIC CIRCULATION, GREATER THAN 600 NM DIAMETER, WITH ENHANCED WINDS OVER THE SOUTHEASTERN PERIPHERY AND A WEAK CORE OF LIGHT WINDS. ANIMATED ENHANCED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A BROAD CIRCULATION PARTIALLY OBSCURED BY DENSE CONVECTION BUILDING IN THE SOUTH-SOUTHEASTERN PERIPHERY. A 210135Z METOP-C ASCAT PASS REVEALED 20-25 KTS WINDS DISPLACED APPROXIMATELY 125 NAUTICAL MILES EAST OF THE ANALYZED POSITION OF THE CENTER. ENVIRONMENTAL ANALYSIS REVEALS MOSTLY CONDUCIVE CONDITIONS FOR DEVELOPMENT WITH LOW TO MODERATE (15 TO 20 KTS) VERTICAL WIND SHEAR, MODERATE UPPER-LEVEL EQUATORWARD OUTFLOW, AND WARM (28-29C) SEA SURFACE TEMPERATURES. GLOBAL MODELS INDICATE THAT THE BROAD CIRCULATION WILL STRUGGLE TO CONSOLIDATE INTO A TROPICAL CYCLONE IN THE NEXT 24-36 HOURS. 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 LOW. (2) AN AREA OF CONVECTION (INVEST 97W) HAS PERSISTED NEAR 10.1N 138.1E, APPROXIMATELY 35 NM NORTH OF YAP. ANIMATED ENHANCED INFRARED IMAGERY DEPICTS PERSISTENT CONVECTION OBSCURING A LOOSELY DEFINED LOW- LEVEL CIRCULATION CENTER (LLCC). THE CONVECTION IS ASSOCIATED WITH A MID-LEVEL CIRCULATION DISPLACED WEST OF THE LLCC. A 202335Z METOP-C ASCAT PASS CAPTURED 20-25 KT WINDS ALONG THE WESTERN PERIPHERY AND CALMER WINDS OVER THE NORTHEASTERN PORTION. ENVIRONMENTAL EXAMINATION REVEALS HIGHLY FAVORABLE CONDITIONS FOR FURTHER DEVELOPMENT WITH WARM (28-29 C) SEA SURFACE TEMPERATURES, EXCELLENT EQUATORWARD OUTFLOW CHANNEL IN THE UPPER LEVELS, AND LOW (10-15 KTS) VERTICAL WIND SHEAR. GLOBAL DETERMINISTIC AND ENSEMBLE MODELS OUTLINE GRADUAL DEVELOPMENT OVER THE NEXT 48 HOURS. ECMWF IN PARTICULAR DEVELOPS THE SYSTEM SOONER AND STRONGER THAN GFS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (3) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: (1) THE AREA OF CONVECTION (INVEST 96W) PREVIOUSLY LOCATED NEAR 35.6N 160.9E IS NOW LOCATED NEAR 38.7N 158.7E, APPROXIMATELY 809 NM EAST OF MISAWA, JAPAN. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL CYCLONE, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED ENHANCED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS INVEST 96W WITH A FULLY EXPOSED LOW- LEVEL CIRCULATION CENTER (LLCC) AND ASSOCIATED CONVECTION OVER THE NORTHERN PERIPHERY. A POTENT UPPER-LEVEL LOW PRESENTLY INHIBITS CONVECTIVE ACTIVITY OVER THE CENTER, AND PLENTY OF DRY AIR IS WRAPPING INTO THE CIRCULATION. A 202350 METOP-C ASCAT PASS REVEALED AN ASYMMETRIC, ALMOST FRONT-LIKE, WIND FIELD WITH MAXIMUM 30-35 KT WINDS WITHIN THE SOUTHEASTERN QUADRANT. ENVIRONMENTAL CONDITIONS AROUND THIS SYSTEM REMAIN UNFAVORABLE FOR DEVELOPMENT INTO A TROPICAL CYCLONE DUE TO THE COOL SEA SURFACE TEMPERATURES, SUBSIDENCE INDUCED BY THE UPPER-LEVEL LOW, AND THE SURROUNDING DRY AIR. DETERMINISTIC MODELS SHOW 96W TRANSITING NORTHEASTWARD AND DIMINISHING AS THE UPPER-LEVEL LOW WEAKENS AND THE ENVIRONMENTAL CONDITIONS BECOME MORE HOSTILE WITH TIME. 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 33 TO 38 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) 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 LOW AREA IN PARA. 1.B.(2).// NNNN
THUNDERSTORM (c/o PAGASA)

Thunderstorm Watch #NCR_PRSD
Issued at: 10:00 PM, 21 August 2026

Thunderstorm is MORE LIKELY to develop over Greater Metro Manila Area(Metro Manila, Bulacan, Rizal, Laguna and Cavite) within 12 hours.

Published by: NCRPRSDValid until: Aug 22, 2026 10:00 AM
Affected Areas: Metro Manila, Bulacan, Cavite, Laguna, Rizal
THUNDERSTORM

Thunderstorm Watch #VISPRSD
Issued at 10:00 PM 21 August 2026

Thunderstorm is MORE LIKELY to develop over #Palawan, #OccidentalMindoro, #Iloilo, #Guimaras, #Antique, #Capiz, #Aklan, #Cebu, #Bohol, #Siquijor, #NegrosOriental, #NegrosOccidental, #Leyte, #SouthernLeyte, #Biliran, #EasternSamar and #Samar within 12 hours.

Published by: VISPRSDValid until: Aug 22, 2026 10:00 AM
Affected Areas: Palawan, Occidental Mindoro, Iloilo, Guimaras, Antique + 12 more
THUNDERSTORM

Thunderstorm Watch #NLPRSD
Issued at 10:00 PM 21 August 2026

Thunderstorm is MORE LIKELY to develop over #IlocosNorte within 12 hours.

Published by: NLPRSDValid until: Aug 22, 2026 10:00 AM
Affected Areas: Ilocos Norte
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METRIC | IMPERIAL
Updated: 08/21/2026 @ 10:00pm  
Temperature Current Conditions Forecast / Storm Prediction
Outside Temperature: No Change

28.3°C

Heat Index:  36.2°C
Feels like:  36°C
Warm
Indoor Temperature

87.0°C

Max Humidex:  43.9°C
Indoor Humidity: %
High Today
32.0°C
12:39 PM 		Low Today
27.5°C
4:41 AM
Yest High
31.0°C
2:36 PM 		Yest Low
24.5°C
5:57 AM
Sta* High
37.0°C
4/28/2026
 Sta* Low
0.0°C
6/27/2026
Space Weather Status
X-Ray: C3.6 Max: M1.6
M CLASS
Geomagnetic Field: 1.67
QUIET
EARTHQUAKE ALERT
Partly cloudy Partly cloudy ,
Partly cloudy

Wind from SSW Wind:  SSW
20.2
Gusting to:
 24.1 km/h
Current Rain Rain Total:
0.0 mm
Rain Warning Rain Rate:
Chandler Burning Index: LOW Current CBI
Fire Danger:
-1.2 % of 100%
LA NINA / EL NINO
Friday
Partially cloudy rain
Partially cloudy with 31°C
27°C 		Saturday
Rain, Overcast rain
Rain, Overcast with 31°C
26°C 		Sunday
Rain, Overcast rain
Rain, Overcast with 28°C
26°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: Decreased 0.2°C since last hour. 27.8°C
Last Hour: Decreased 0.2°C since last hour. 0.2°C
High 12:06 PM: 29.7°C
Low 6:17 AM: 26.8°C
Record High: 31.0°C on
May-26-2026
Record Low: 0.0°C on
Jun-27-2026
Wetbulb: 27.9°C


Today: 0.00 mm
Yesterday: 26.70 mm
Last 7 Days: 669.10 mm
Aug Rain: 1281.60 mm
Aug to Date
  Avg:10 		0.00 mm
Aug to Date
  Diff from Avg:10 		Over 1281.6 mm for the month 1281.60 mm
Aug Avg: 466.70 mm
Diff from Avg: Over 814.9 mm for the month 814.90 mm
Season:1 2263.5 mm
YTD
  Avg:11 		1.00 mm
YTD
  Diff from Avg:11 		Over 2262.5 mm for the year 2262.50 mm
Last Rain
Time/Date: 		Aug-20-2026
at 6:40 AM
90 rain days in 2026
19 days in August
0 days since last rain
Current: SSW  20.2 km/h
Highest Speed: 48.1 km/h
1Hr Average: 9.4 km/h
Wind Run: 411.13 km
Wind Gust
Current: 24.1 km/h
Today: 92.9 km/h 1:04 PM
Month: 124.9 km/h Aug-16
Year: 124.9 km/h Aug-16
Record Gust: 124.9 km/h
Aug-16-2026
Sunlight:
12 hrs 32 min 55 sec
of Sunlight Today
Which is 44 sec Shorter
Than Yesterday


(Noon)
graph (Midnight)

 Highslide JS
Morning Crescent, 8 days, 20 hours, 43 minutes in cycle
19%
Illuminated
Outside Humidity Barometer
Current: Decreased 1% since last hour. 97%
Last Hour: Decreased 1% since last hour. 1%
High 12:01 AM: 99%
Low 12:59 PM: 84%
Record High: 99%
Dec-10-2025
Record Low: 0%
May-5-2026
Current: Rising 0.3 hPa/hr 1008.0 hPa
Last Hour: Steady
High 8:36 AM: 1009.0
Low 4:01 PM: 1005.6
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: 9.2
Aug: 170.9
2026 to Date: 2062.1
Heating Degree Days
2026 to Date: 0.0

5 hours, 57 minutes to high tide at
04:17 AM PST
Current: 36.2°C
High 12:06pm: 47.2°C
Yesterday: 43.5°C
Record: 56.5°C
May-26-2026

102

Unhealthy for Sensitive Groups

PM2.5: 36.03 ug/m3 PM10: 53.58 ug/m3

Last Updated: 2026-08-21 22:20:05 PHT
UV Summary/Forecast Solar Summary
High Today:   11.0 @ 10:24 AM
Aug-22

13.3 		Aug-23

13.9 		Aug-24

13.2
High Today:  
802 W/m2 @ 10:53 AM
Sun Hours Today:
01:57
   This Month: 25:19 Hrs
Rise: 5:43 am  Set: 6:15 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 28.5°C
Sunrise: 5:43 am
Sunset: 6:15 pm
Moonrise: 1:00 pm
Moonset: 12:21 am
Full Moon: 04:19 UTC August 28 2026
Next Eclipse:
Image
28 Aug 2026 (7 days away): Partial lunar eclipse Fri, 28 Aug 2026 12:14:00 PM PST
Updated at Midnight
Current ET: 2.80 mm
7-Days Rain: 669.10 mm
7-Days ET: 7.20 mm
7-Day: 661.9 mm water in excess of what evaporated in last 7 days. 661.9 mm
August: 1113 mm water in excess of what evaporated this month. 1113 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: 08/21/2026 @ 10:00pm  
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 21 of just the month of August for this station since 2016.   11 Historical average rain this season to day 21 of August for this station since 2016.
 VC Weather Forecast  -   with local Weather Outlook for Friday & Saturday
Friday
Partially cloudy rain
Partially cloudy
31°C
27°C 		VC forecast: Partly cloudy throughout the day. Chance of precipitation (rain) 39%. High: 31°C. Low: 27°C. Wind WSW 27->30 km/h. UV Index 10.
Local Weather Advisory:
Issued: 4:00 PM, 21 August 2026 Southwest Monsoon affecting Northern and Central Luzon.
 Saturday
Rain, Overcast rain
Rain, Overcast
31°C
26°C 		VC forecast: Cloudy skies throughout the day with a chance of rain throughout the day. Chance of precipitation (rain) 100%. High: 31°C. Low: 26°C. Wind SW 23->30 km/h. UV Index 9.
 VC Short Term Weather Forecast
Sunday
Rain, Overcast rain
Rain, Overcast 		Monday
Rain, Overcast rain
Rain, Overcast 		Tuesday
Rain, Overcast rain
Rain, Overcast 		Wednesday
Rain, Overcast rain
Rain, Overcast 		Thursday
Rain, Overcast rain
Rain, Overcast 		Friday
Rain, Overcast rain
Rain, Overcast 		Saturday
Rain, Overcast rain
Rain, Overcast
28°C
26°C 		28°C
26°C 		28°C
26°C 		28°C
26°C 		27°C
26°C 		27°C
25°C 		26°C
25°C
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