Multiple intense thunderstorms developed with the passage of an upper level disturbance during an afternoon of strong daytime heating. Abundant sunshine and above normal warmth resulted in surface-base CAPE (Convective Available Potential Energy) values ranging from 2,000 to…
Read the full account →Flash flooding was observed across central Ashe County, including in the Towns of West Jefferson and Warrensville, due to heavy runoff from about three inches of rain falling within one hour per multiple personal weather stations within the area.
Read the full account →Troughing over the western CONUS brought southwesterly flow aloft over the central and northern Plains for the duration of this event. In the couple of days leading up to May 21st, the upper-level flow pattern amplified as a trough deepened over the northern Rockies.
Read the full account →Isolated thunderstorms associated with the dryline occurred on May 21. Much more widespread thunderstorm activity took place on May 22 as a cold front sagged south into the area and a strong jet stream developed aloft.
Read the full account →On June 12th, a low-amplitude shortwave embedded in northwesterly flow aloft ejected out into the central Great Plains. At the surface, a surface low-pressure was noted in North Dakota with a cold front extending south into South Dakota.
Read the full account →A plume of deep tropical moisture streamed into South Florida during the week of June 10 through 15th as the region remained south of a stationary boundary and in close proximity to a weak tropical disturbance.
Read the full account →Northern Ohio resided within the warm and humid sector along the northwestern flank of the Bermuda-Azores subtropical high during the late morning of the 17th through late evening of the 20th.
Read the full account →A deep plume of tropical moisture had spread over Central New York ahead of the remnants of Tropical Storm Debby. Prolonged torrential rains blanketed the region during the night and early morning hours before becoming enhanced by the approaching tropical remnants.
Read the full account →A deep plume of tropical moisture had spread over Northeast Pennsylvania ahead of the remnants of Tropical Storm Debby. Prolonged torrential rains blanketed the region during the night and early morning hours before becoming enhanced by the approaching tropical remnants.
Read the full account →A deep plume of tropical moisture had spread over Central New York ahead of the remnants of Tropical Storm Debby. Prolonged torrential rains blanketed the region during the night and early morning hours before becoming enhanced by the approaching tropical remnants.
Read the full account →A remnant southwest to northeast boundary from early morning convection combined with an approaching upper trough and associated cold front, as well as anomalous precipitable water values up to 2.00 inches and CAPE around 2000 J/kg.
Read the full account →The combination of an impressive tropical airmass (precipitable water values of 2.00-2.50 inches) and deep forcing for ascent produced a large area of very heavy rainfall across southeast Georgia.
Read the full account →Multiple rounds of showers and thunderstorms associated with the remnant moisture of Tropical Storm Helene passed across the region, producing localized heavy rainfall across soils that were already moist from previous rainfall.
Read the full account →An upper level low was situated in the vicinity of western Tennessee, while a strong upper ridge was positioned over the southeast coast, which helped to steer Hurricane Helene into the Florida Big Bend during the evening of September 26.
Read the full account →Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th.
Read the full account →Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th.
Read the full account →Despite a somewhat nebulous synoptic regime, with modest zonal upper flow across the southern Plains, widespread thunderstorm development emerged during the early morning of the 11th.
Read the full account →Despite a somewhat nebulous synoptic regime, with modest zonal upper flow across the southern Plains, widespread thunderstorm development emerged during the early morning of the 11th.
Read the full account →A surface trough was oriented south to north across northeast Ohio during the afternoon and early evening of August 8th, 2024, with then Tropical Depression Debby centered over the Carolinas.
Read the full account →A surface trough was oriented south to north across northeast Ohio during the afternoon and early evening of August 8th, 2024, with then Tropical Depression Debby centered over the Carolinas.
Read the full account →Debby first developed into a tropical storm about 100 miles west-southwest of Key West, Florida late afternoon on August 3rd, then gradually strengthened to a strong tropical storm while tracking north across the eastern Gulf of Mexico on August 4th.
Read the full account →A plume of moisture from the tropical Pacific brought an Atmospheric River to the Bay Area January 26th-29th. This system generated heavy rain rates causing flooding and debris flows over area burn scars as well as 15 to 20 inches of rain in the Santa Lucia Mountains.
Read the full account →A plume of moisture from the tropical Pacific brought an Atmospheric River to the Bay Area January 26th-29th. This system generated heavy rain rates causing flooding and debris flows over area burn scars as well as 15 to 20 inches of rain in the Santa Lucia Mountains.
Read the full account →A deep, negatively tilted upper level trough and associated occluded front passed from the central Mississippi River Valley on January 9th toward the lower New England region by the morning of the 10th.
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