Intertropical Convergence Zone (ITCZ) and southwest monsoon prevailed during the first half of June and Low Pressure Area (LPA) turned into Tropical Depression “Dodong” on the second half of the month.
Mindanao and Visayas including MIMAROPA and Bicol Region experienced cloudiness with scattered rainshowers and thunderstorms due to the oscillation of Intertropical Convergence Zone (ITCZ) on the first half of the month. Moreover, Northern Luzon, Bataan and Zambales experienced scattered rainshowers on the second half due to southwest monsoon. While Metro Manila and the rest of the archipelago had partly cloudy to cloudy skies with isolated rainshowers and thunderstorms especially during afternoon or in the evening.
Generally, the country experienced light to moderate winds from the east to southeast prevailed during the first half of the month and from southwest to south during the second half. Moderate to strong winds from southwest over Northern Luzon, Zambales and Bataan provinces over the end of the month.
Derived Soil Moisture Condition (rainfed areas):
WET- Borongan, Davao City, Surigao del Norte, (1st decade of June); Ilocos Sur, Basco, Isabela, CAR, Zambales, Pampanga, Tarlac, Casiguram, Rizal, Infanta, Borongan, Davao City, Tagum, Lanao del Sur (2nd decade of June); Ilocos Sur, Pampanga, CAR, Baler, Zambales, rest of Region 3, NCR, Rizal, Capiz, Borongan, Zamboanga del Norte, Budiknon, Region 11 – (3rd decade of May);
MOIST – Pangasinan, Basco, Tuguegrao, Isaela, CAR, Casiguran, Quezon City, Romblon, Catanduanes, Reg. 6, Tacloban, Guian (1st decade of June); Ilocos Norte, Itbayat, Tuguegarao, rest of Region 3, NCR, Rest of Region 4A, Cuyo, Catandanes, Region 8, Catarman, Guiuan, Zamboanga del Norte, Bukidnon, Region 13(2nd decade of June); Rest of Region 1, whole of Region 2, rest of Region 4A, Sorosogon, Catanduanes, rest of Region6, Surigao del Sur (3rd decade of May);
DRY - rest of the country
Weak El Niño continued to persist in the Tropical Pacific in June, July, which may last until end of the year and a chance to extend until 1st quarter of 2020, however with high uncertainty. Meteorological and agricultural impacts are present.
Land Preparation: Rice & Corn: Irrigated and rainfed fields/ Vegetable farms/plot gardens – in most parts of the country .
Type 1 climate – Rice(irrigated and rainfed),corn, peanuts, eggplant, cucumber, okra, patola, squash, patani, batao, seguidillas, ampalaya, sweet potato,chayote, sweet pepper,talinum,pechay arrow root, ginger,lettuce, carrot, tapilan, jute -( in selected areas of the western parts of Luzon, Mindoro, Negros and Palawan)
Type II climate – Rice (lowland-irrigated, rainfed, upland), cowpea, peanut (third crop)batao, squash, carrots, ubi, ampalaya, melon, muskemelon, okra, patola, gabi, ginger, cadios, string beans, sweet potato, patani cassava, talinum,kutchai, arrowroot – (in selected areas of Catanduanes, Sorsogon, eastern part of Camarines norte and Camarines Sur, eastern part of Quezon and Aurora, eastern part Leyte and eastern part of northern Samar, large portion of eastern Mindanao)
Type 111 climate – Rice (irrigated lowland, upland rainfed) corn, peanuts, patani, soybeans, seguidillas, peas, sweet potato okra, eggplant, squash ampalaya, chayote, sweet pepper, cowpea, cucumber, cauliflower,celery, mustard, pechay, - (in selected areas in western part of Cagayan, Isabela, Nueva Viscaya, east of Mt. Province, southern Quezon, Bondoc peninsula, Masbate, Romblon, Northeast Panay, eastern Negros, central and southern Cebu, part of northern Mindanao, most of eastern Palawan).
Type 1V climate– Rice (lowland irrigated, rainfed, upland) corn, soybeans, monggo corn, cadios, peanuts, sweet potatoes, carrots, cabbage, eggplant, sweet potatoes, ampalaya, chayote and pechay (in selected areas of Batanes provinces, northeast Luzon, western Camarines norte and Camarines sur, Albay, eastern Mindoro, Marinduque, western Leyte, northern Negros, and most of central and southern Mindanao.)
Maturing/Ripening Stage –Jack fruit, dragon fruit , rambutan, mangoes, papaya, duhat guyabano and pineapple – most parts of the country.
Fruit trees, fruit vegetables & leafy vegetables, root crops – pineapple, papaya mangoes, guyabano, siniguelas, banana, upo, watermelon, patola, tomatoes, eggplant, okra, squash, string beans, sweet pepper, carrots ampalaya, cabbage, mustard,pechay, lettuce radish, ginger, cauliflower, sweet peas, onions, celery, spinach, garlic, onions, peanuts, cassava, sweet potatoes, potatoes, kutchai, endive– most vegetable farms in the country ;
Land and seedbed preparation, fertilizer application, weeding, cultivation, transplanting and planting– most farms of the country
The month of July is when the wet season starts to peak. Southwest monsoon or locally known as “habagat.” is imminent during this month which brings rains over the western section of Luzon and of Visayas. Likewise, isolated thunderstorms and rainshowers are still expected to occur in most parts of the country. Above normal rainfall condition is expected in most parts of Luzon; near normal rainfall condition over western Visayas and below normal rainfall condition over most part of central Visayas and Mindanao. However, due to the weak El Niño condition, meteorological and agricultural impacts are present. Farmers are advised to regularly consult the expertise of agricultural workers.
Southwest monsoon will be experienced particularly in western section of Luzon including western Visayas and oscillation of ITCZ will be experienced during the month particularly in areas of Visayas and Mindanao and can even extend to southern Luzon areas. Isolated rains and thunderstorms are still expected to experience in most parts of the country.
Rainfall will be near normal to above normal conditions over most of Luzon and Eastern Samar in Visayas, while generally below normal over southern Visayas and most of Mindanao.
Two or three tropical cyclones are expected to enter the PAR.
Temperature range for upland farms will be 15 ºC – 26ºC and 26 ºC - 37ºC for lowland farms.
Relative Humidity will be from 55% to 98%.
Weak El Nino condition is still present in the Tropical Pacific for June -August 2019 with 70% probability and to extend until first quarter of 2020 at weak El Niño level, however with high uncertainty.
MA. FE. E. VILLAMORA OIC, FWSS, CAD
EDNA L. JUANILLO Chief Climatology and Agrometeorology Division (CAD)
Figures 1,2, 3 & 4 Images courtesy of CLIMPS Climate Map by PIAS