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2026-08-18 05:05 AM ALERT: Geomagnetic K-index of 4 Threshold Reached: 2026 Aug 17 2059 UTC Synoptic Period: 1800-2100 Active Warning: YES Comment: Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska. TROPICAL CYCLONE ADVISORY: ABPW10 PGTW 171200 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS REISSUED/171200Z-180600ZAUG2026// 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 92W) PREVIOUSLY LOCATED NEAR 10.1N 157.2E IS NOW LOCATED NEAR 9.2N 157.8E, APPROXIMATELY 134 NM NORTH OF POHNPEI. ANIMATED ENHANCED MULTISPECTRAL IMAGERY (MSI) DEPICTS A BROAD AREA OF DISORGANIZED CONVECTION ALONG A CONVERGENT TROUGH AXIS ORIENTED ROUGHLY EAST-WEST. A 152158Z METOP-B ASCAT PASS REVEALED 20-25 KNOT WINDS IN THE SOUTHEASTERN QUADRANT. ENVIRONMENTAL ANALYSIS FOR THE AREA INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT, WITH LOW VERTICAL WIND SHEAR (10-15 KTS), GOOD EQUATORWARD OUTFLOW ALOFT, AND WARM SEA SURFACE TEMPERATURES (29-30 C). GLOBAL MODELS ARE IN AGREEMENT THAT 92W WILL GRADUALLY COALESCE AND BEGIN TO INTENSIFY OVER THE NEXT 48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 12 TO 18 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) AN AREA OF CONVECTION (INVEST 94W) HAS PERSISTED NEAR 18.1N 132.5E, APPROXIMATELY 471 NM SOUTH-SOUTHEAST OF MINAMI DALTO JIMA. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS A POORLY DEFINED LOW LEVEL CIRCULATION CENTER (LLCC) WITH DEEP CONVECTION ALONG THE SOUTHERN PERIPHERY. A 170056Z ASCAT-B PASS REVEALED A TROUGH-LIKE ZONE WITH LIGHT WINDS ALONG THE AXIS AND 20-25 KT WESTERLY WINDS APPROXIMATELY 120 NM SOUTH OF THE CENTER. WHILE ENVIRONMENTAL ANALYSIS FOR THE AREA INDICATES LOW VERTICAL WIND SHEAR (10-15KTS), WARM SEA SURFACE TEMPERATURES (29-30C), AND GOOD EQUATORWARD OUTFLOW ALOFT, WHICH ARE TYPICALLY FAVORABLE FOR DEVELOPMENT, AN UPPER LEVEL LOW RESIDES DIRECTLY OVER THE SURFACE CIRCULATION. GLOBAL DETERMINISTIC MODELS AGREE THAT 94W WILL DEVELOP CHARACTERISTICS OF A MONSOON DEPRESSION WITHIN THE NEXT 24-48 HOURS WITH A LOW PROBABILITY OF TRANSITION TO A TROPICAL CYCLONE. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 22 TO 28 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 IS LOW. (3) AN AREA OF CONVECTION (INVEST 95W) HAS PERSISTED NEAR 21.5N 118.2E, APPROXIMATELY 230 NM EAST-SOUTHEAST OF HONG KONG. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS DISORGANIZED CONVECTION PARTLY ASSOCIATED WITH A MID-LEVEL CIRCULATION. SEVERAL CONSECUTIVE PASSES BY ASCAT-B AT 170030Z, ASCAT-C AT 170130Z, AND OSCAT-3 AT 170430Z DEPICT UNREMARKABLE 5-15 KT WINDS ALONG A SURFACE TROUGH MASKED BY CONVECTIVE ACTIVITY. ENVIRONMENTAL ANALYSIS FOR THE AREA INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT, WITH LOW VERTICAL WIND SHEAR (10-15KTS), EXCELLENT EQUATORWARD OUTFLOW, AND WARM SEA SURFACE TEMPERATURES (28-29C). GLOBAL DETERMINISTIC AND ENSEMBLE MODELS ARE IN AGREEMENT THAT 95W WILL GRADUALLY COALESCE OVER THE NEXT 24-36 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 12 TO 18 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (4) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 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) AND PARA. 1.B.(3).// NNNN
THUNDERSTORM (c/o PAGASA)

Thunderstorm Advisory No. 5 #VISPRSD
Issued at 05:39 AM 18 August 2026

Moderate to Heavy rainshowers with lightning and strong winds are expected over #Capiz(Tapaz), #Iloilo(Lambunao, Alimodian, Leon, BarotacNuevo, SanJoaquin), #Guimaras(NuevaValencia, Sibunag, SanLorenzo), #NegrosOriental(Sibulan, Valencia, Siaton, Zamboanguita, DumagueteCity, SanJose, Amlan, Mabinay, Manjuyod, Bindoy, Ayungon) and #Antique(TobiasFornier) within the next 30 minutes to an hour.

The above conditions are being experienced in #Antique(SanRemigio, AniniY), #Iloilo(Miagao, Igbaras, Tubungan, Guimbal, Tigbauan, Oton, Zarraga, Dumangas), #Guimaras(Jordan, Buenavista), #NegrosOccidental(Pulupandan, Valladolid, BagoCity, BacolodCity, Cauayan, CityOfSipalay, Candoni, HinobaAn, Ilog, CityOfKabankalan), #NegrosOriental(Basay, CityOfBayawan, BaisCity, CityOfTanjay, Pamplona, SantaCatalina, Dauin and Bacong) which may persist within 1 to 2 hours and may affect nearby areas.

Published by: VISPRSDValid until: Aug 18, 2026 07:39 AM
Affected Areas: Capiz, Iloilo, Antique, Guimaras, Negros Occidental + 1 more
FLOOD

Under present weather conditions, At 3:00 AM today, the Low Pressure Area (LPA) was estimated based on all available data at 1,115 km East of Northern Luzon (19.6°N, 132.1°E). Southwest Monsoon affecting Luzon and Visayas.
The 12-hour rainfall forecast is moderate to occasional heavy rains .
WATERCOURSES LIKELY TO BE AFFECTED :

+ **Ilocos Norte** - Rivers and its tributaries particularly Bulu, Banban, Bacarra-Vintar, Laoag and Quiaoit.
+ **La Union** - Rivers and its tributaries particularly Amburayan, Baroro, Lower Bauang and Aringay.
+ **Ilocos Sur** - Rivers and its tributaries particularly Lower Abra, Silay-Sta. Maria, Buaya, and Amburayan.
+ **Pangasinan** - Rivers and its tributaries particularly Balincaguing and Alaminos.

Published by: PAGASA-DOSTValid until: Aug 18, 2026 05:18 PM
Affected Areas: Ilocos Norte, La Union, Ilocos Sur, Pangasinan
spacer
METRIC | IMPERIAL
Updated: 08/18/2026 @ 5:30am  
Temperature Current Conditions Forecast / Storm Prediction
Outside Temperature: Colder 0.3°C than last hour.

24.2°C

Cool
Indoor Temperature

78.4°C
High Today
24.5°C
3:12 AM 		Low Today
23.7°C
3:31 AM
Yest High
28.0°C
10:16 AM 		Yest Low
23.4°C
4:30 AM
Sta* High
37.0°C
4/28/2026
 Sta* Low
0.0°C
6/27/2026
Space Weather Status
X-Ray: C1.0 Max: C1.4
NORMAL
Geomagnetic Field: 3.67
UNSETTLED
<!-- fixupCondition in='Light Rain, Overcast' out='Light rain, Overcast' ocnt='2' --><!-- vals split on comma --> Light rain, Overcast Light rain, Overcast ,
Light rain, Overcast

Wind from SSE Wind:  SSE
14.8
Gusting to:
 20.2 km/h
Current Rain Rain Total:
26.1 mm
Rain Warning Rain Rate:
Chandler Burning Index: LOW Current CBI
Fire Danger:
-1.5 % of 100%
LA NINA / EL NINO
Tuesday
Rain, Overcast rain
Rain, Overcast with 27°C
25°C 		Wednesday
Rain, Overcast rain
Rain, Overcast with 26°C
25°C 		Thursday
Rain, Partially cloudy rain
Rain, Partially cloudy with 30°C
25°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 0.3°C since last hour. 24.0°C
Last Hour: Decreased 0.3°C since last hour. 0.3°C
High 3:12 AM: 24.3°C
Low 3:31 AM: 23.5°C
Record High: 31.0°C on
May-26-2026
Record Low: 0.0°C on
Jun-27-2026
Wetbulb: 24.1°C


Today: 26.10 mm
Rate (/hr): 7.20 mm
Yesterday: 43.80 mm
Last 7 Days: 402.00 mm
Aug Rain: 1095.90 mm
Aug to Date
  Avg:10 		0.00 mm
Aug to Date
  Diff from Avg:10 		Over 1095.9 mm for the month 1095.90 mm
Aug Avg: 466.70 mm
Diff from Avg: Over 629.2 mm for the month 629.20 mm
Season:1 2077.8 mm
YTD
  Avg:11 		1.00 mm
YTD
  Diff from Avg:11 		Over 2076.8 mm for the year 2076.80 mm
87 rain days in 2026
17 days in August
0 days since last rain
Current: SSE  14.8 km/h
Highest Speed: 20.7 km/h
1Hr Average: 11.8 km/h
Wind Run: 32.04 km
Wind Gust
Current: 20.2 km/h
Today: 44.4 km/h 3:42 AM
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 35 min 6 sec
of Sunlight Today
Which is 44 sec Shorter
Than Yesterday


(Noon)
graph (Midnight)

 Highslide JS
Morning Crescent, 5 days, 4 hours, 13 minutes in cycle
25%
Illuminated
Outside Humidity Barometer
Current: No Change 99%
Last Hour: No Change 0%
High 12:00 AM: 99%
Low 12:00 AM: 99%
Record High: 99%
Dec-10-2025
Record Low: 0%
May-5-2026
Current: Rising 0.5 hPa/hr 1003.3 hPa
Last Hour: Steady
High 12:07 AM: 1004.9
Low 4:09 AM: 1002.7
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: 1.3
Aug: 139.6
2026 to Date: 2030.8
Heating Degree Days
2026 to Date: 0.0

2 hours, 4 minutes to low tide at
07:54 AM PST
Current: 23.2°C
High 3:12am: 24.5°C
Yesterday: 35.4°C
Record: 56.5°C
May-26-2026

23

Good

PM2.5: 5.4 ug/m3 PM10: 18.73 ug/m3

Last Updated: 2026-08-18 05:50:56 PHT
UV Summary/Forecast Solar Summary
High Yest:   3.0 @ 9:38 AM
Aug-18

12.9 		Aug-19

12.9 		Aug-20

12.8
High Yest:   256.8 @ 9:39 AM
Sun Hours Today:
00:00
   This Month: 19:56 Hrs
Rise: 5:42 am  Set: 6:17 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Early Morning
YTD Avg Temp: 28.5°C
Sunrise: 5:42 am
Sunset: 6:17 pm
Moonrise: 10:26 am
Moonset: 10:07 pm
Full Moon: 04:19 UTC August 28 2026
Next Eclipse:
Image
28 Aug 2026 (10 days away): Partial lunar eclipse Fri, 28 Aug 2026 12:14:00 PM PST
Updated at Midnight
Current ET: 0.10 mm
7-Days Rain: 402.00 mm
7-Days ET: 7.70 mm
7-Day: 394.3 mm water in excess of what evaporated in last 7 days. 394.3 mm
August: 930.3 mm water in excess of what evaporated this month. 930.3 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:15 | S3C2:5 | Ajax 3.xx
ISS:Ok | CON:%vpconsolebattery% | RCP:%vpreception2%
METRIC | IMPERIAL
Updated: 08/18/2026 @ 5:30am  
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 18 of just the month of August for this station since 2016.   11 Historical average rain this season to day 18 of August for this station since 2016.
 VC Weather Forecast  -   with local Weather Outlook for Tuesday & Wednesday
Tuesday
Rain, Overcast rain
Rain, Overcast
27°C
25°C 		VC forecast: Cloudy skies throughout the day with storms possible. Chance of precipitation (rain) 100%. High: 27°C. Low: 25°C. Wind SW 34->54 km/h. UV Index 3.
Local Weather Advisory:
Issued: 4:00 AM, 18 August 2026 At 3:00 AM today, the Low Pressure Area (LPA) was estimated based on all available data at 1,115 km East of Northern Luzon (19.6°N, 132.1°E). Southwest Monsoon affecting Luzon and Visayas.
 Wednesday
Rain, Overcast rain
Rain, Overcast
26°C
25°C 		VC forecast: Cloudy skies throughout the day with a chance of rain throughout the day. Chance of precipitation (rain) 100%. High: 26°C. Low: 25°C. Wind SW 28->49 km/h.
 VC Short Term Weather Forecast
Thursday
Rain, Partially cloudy rain
Rain, Partially cloudy 		Friday
Rain, Partially cloudy rain
Rain, Partially cloudy 		Saturday
Rain, Partially cloudy rain
Rain, Partially cloudy 		Sunday
Rain, Overcast rain
Rain, Overcast 		Monday
Rain, Overcast rain
Rain, Overcast 		Tuesday
Rain, Overcast rain
Rain, Overcast 		Wednesday
Rain, Overcast rain
Rain, Overcast
30°C
25°C 		31°C
26°C 		29°C
26°C 		28°C
26°C 		26°C
25°C 		26°C
25°C 		27°C
25°C
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