Hurricane Tracker Shows Flash Flood Warning Issued for Guam
Hurricane tracker reports indicate severe weather is affecting multiple global locations with flash flooding in Guam, heavy monsoon rains across the Philippines, and severe thunderstorms producing high winds and hail in southeastern Colorado. A Flash Flood Warning is in effect for central Guam until 4:30 PM ChST due to thunderstorms producing 1-2 inches of rain with an additional 0.5-1.5 inches possible. [1] The southwest monsoon is bringing moderate to heavy rain (50-100 mm) to over 20 provinces mainly in Luzon and some in Visayas, with heavy to intense rain (100-200 mm) forecast for Occidental Mindoro. [2] Severe Thunderstorm Warnings have been issued for parts of Bent, Prowers, and Kiowa counties in southeastern Colorado with 60 mph wind gusts and quarter-size hail. [3] Flooding continues along Pine Island Bayou near Sour Lake in Texas, with minor flooding affecting Hardin and Jefferson counties until Wednesday evening. [5] No new low pressure areas or tropical cyclones are currently in the Philippine Area of Responsibility, though 2-3 are expected in September. [2]
Current Warnings and Rainfall Reports
The National Weather Service in Tiyan has issued a Flash Flood Warning for central Guam until 4:30 PM ChST. [1] At 3:02 PM ChST, Doppler radar indicated thunderstorms producing heavy rain across the warned area, with between 1.0 and 2.0 inches of rain already fallen and additional rainfall amounts of 0.5 to 1.5 inches possible. [1] Flash flooding is ongoing or expected to begin shortly in that region. [1] The Philippine Atmospheric, Geophysical, and Astronomical Services Administration reported that the southwest monsoon is still affecting Luzon and the Visayas. [2] Moderate to heavy rain measuring 50-100 millimeters is expected from Wednesday noon September 9 to Thursday noon September 10 in provinces including La Union, Pangasinan, Nueva Ecija, Mountain Province, Quirino, Aurora, Nueva Vizcaya, Ifugao, Benguet, Tarlac, Zambales, Bataan, Pampanga, Cavite, Batangas, Romblon, Occidental Mindoro, Oriental Mindoro, Palawan, Camarines Sur, Albay, Aklan, and Antique. [2] From Thursday noon September 10 to Friday noon September 11, heavy to intense rain of 100-200 millimeters is forecast for Occidental Mindoro while moderate to heavy rain of 50-100 millimeters affects Pangasinan, La Union, Benguet, Nueva Vizcaya, Quirino, Aurora, Zambales, Bataan, Tarlac, Pampanga, Nueva Ecija, Bulacan, Metro Manila, Rizal, Cavite, Batangas, Laguna, Quezon, Oriental Mindoro, Marinduque, Romblon, Palawan, Camarines Norte, Camarines Sur, Albay, Catanduanes, Aklan, and Antique. [2] From Friday noon September 11 to Saturday noon September 12, moderate to heavy rain of 50-100 millimeters is expected in Zambales, Bataan, Tarlac, Pampanga, Cavite, Batangas, Occidental Mindoro, Pangasinan, and La Union. [2] Floods and landslides remain possible in other parts of Luzon and the Visayas. [2] In southeastern Colorado, the National Weather Service in Pueblo issued Severe Thunderstorm Warnings for northwestern Prowers County, central Kiowa County, and northeastern Bent County until 10:00 PM MDT. [4] At 9:16 PM MDT, severe thunderstorms were located along a line extending from 11 miles west of Sweetwater Reservoir to near Neegronda Reservoir to near Lamar, moving north at 40 mph. [4] At 9:41 PM MDT, another line of severe thunderstorms extended from 6 miles west of Eads to near Neeoshe Reservoir to 8 miles east of Queens Reservoir, moving north at 25 mph. [3] Hazards include 60 mph wind gusts and quarter-size hail, with expected hail damage to vehicles and wind damage to roofs, siding, and trees. [3] Locations impacted include Eads, Neeoshe Reservoir, Sweetwater Reservoir, Chivington, Brandon, Neegronda Reservoir, and Queens Reservoir. [3] The Flood Warning continues for Pine Island Bayou near Sour Lake affecting Hardin and Jefferson counties in Texas, where minor flooding is occurring and forecast until Wednesday evening. [5] At 25.0 feet, water inundates roads in lowland areas near the river, with low spots on Old Sour Lake Road under water. [5]
Guam Flash Flood Warning Details
The National Weather Service in Tiyan has issued a Flash Flood Warning for central Guam until 4:30 PM ChST. [1] At 3:02 PM ChST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. [1] Between 1.0 and 2.0 inches of rain have fallen, with additional rainfall amounts of 0.5 to 1.5 inches possible in the warned area. [1] Flash flooding is ongoing or expected to begin shortly. [1] The hazard is flash flooding caused by thunderstorms, with radar as the source. [1]
Philippine Monsoon Impacts
The southwest monsoon is bringing moderate to heavy rain to over 20 provinces mainly in Luzon and some in Visayas. [2] Heavy to intense rain of 100-200 millimeters is forecast for Occidental Mindoro from Thursday noon September 10 to Friday noon September 11. [2] Floods and landslides remain possible on Wednesday September 9 due to rain from the southwest monsoon. [2] The weather bureau expects two or three tropical cyclones to develop within or enter the Philippine Area of Responsibility in September. [2]
Colorado Severe Thunderstorm Warnings
Severe Thunderstorm Warnings have been issued for parts of Bent, Prowers, and Kiowa counties in southeastern Colorado. [3] At 9:41 PM MDT, severe thunderstorms were located along a line extending from 6 miles west of Eads to near Neeoshe Reservoir to 8 miles east of Queens Reservoir, moving north at 25 mph. [3] Hazards include 60 mph wind gusts and quarter-size hail. [3] At 9:16 PM MDT, severe thunderstorms were located along a line extending from 11 miles west of Sweetwater Reservoir to near Neegronda Reservoir to near Lamar, moving north at 40 mph. [4] Locations impacted include Eads, Neeoshe Reservoir, Sweetwater Reservoir, Chivington, Brandon, Neegronda Reservoir, and Queens Reservoir. [3]
Ongoing Texas River Flooding
Flooding continues along Pine Island Bayou near Sour Lake in Texas, with minor flooding affecting Hardin and Jefferson counties until Wednesday evening. [5] Minor flooding is occurring and forecast. [5] At 25.0 feet, water inundates roads in lowland areas near the river, and low spots on Old Sour Lake Road are under water. [5]
Tropical Cyclone Outlook
No new low pressure areas or tropical cyclones are currently in the Philippine Area of Responsibility. [2] The weather bureau expects two or three tropical cyclones to develop within or enter the Philippine Area of Responsibility in September. [2] The next three local tropical cyclone names are Queenie, Rosal, and Samuel. [2]
What to watch next: The southwest monsoon will continue to bring moderate to heavy rain across listed provinces through Saturday noon September 12, while the Flash Flood Warning in Guam remains in effect until 4:30 PM ChST and the Flood Warning for Pine Island Bayou continues until Wednesday evening.
