Hermine formed in the Florida Straits south of Key West on August 28th. It remained a very disorganized tropical depression for a few days before the environment around it gradually became more favorable and it became a tropical storm late in the day on the 30th.
Read the full account →A frontal system crossed into New England on the evening of the 25th sparking scattered showers and thunderstorms. An earlier warm front had moved through the region leaving 1/4 to 1/2 of rain in its wake.
Read the full account →A ridge of high pressure over eastern North America stalled Florence's forward motion a few miles off the southeast North Carolina coast on September 13th.
Read the full account →Ex-Typhoon Halong brought high winds and severe coastal flooding to the West Coast of Alaska from October 11th to 13th. The storm caused severe coastal flooding in the Kuskokwim River Delta and high water levels extending north to the Yukon River Delta.
Read the full account →Localized heavy rain developed over the San Bernardino Mountains in association with a fast-moving cold front and sharp, low pressure trough aloft. Between 1.5 and 2.0 inches of rain fell on a recently burned area southwest of Running Springs.
Read the full account →Intense rainfall and hail due to slow moving thunderstorms fell on steep slopes composed of loose soil and rock. The worst rock and landslides in decades occurred on county road 306, which is in the Cottonwood Creek drainage north of Mt. Princeton.
Read the full account →A major atmospheric river impacted Southern California February 13th through 15th bringing heavy rain and high winds. Over the course of 48 hours, many mountain locales recorded 8 to 10 inches of rain, with Palomar Mountain (San Diego County) recording over 10 inches of rain in…
Read the full account →Abundant moisture, in combination with strong daytime heating, provided the fuel for robust thunderstorm development along a quasi-stationary front located across the southern Texas Panhandle late on the afternoon of the 31st.
Read the full account →This Sunday afternoon-evening featured two rounds of strong to severe thunderstorms within western portions of the North Central Kansas area, both of which primarily impacted a swath running through southern Phillips, much of Rooks and far western Osborne counties.
Read the full account →A narrow band of heavy rain fell across the I-64 corridor during the early morning hours of August 15th. The Charleston airport reported 4.33 inches of rain had fallen since the previous evening, with radar estimates ranging from 2 to 5 inches from Putnam to Fayette Counties.
Read the full account →A slow-moving upper trough combined with a stalling front, and a large swath of tropical moisture, to produce record and near-record rainfall across parts of North Texas late August 21 through August 22.
Read the full account →The combination of near record moisture content (PWATs 1.8-2.0 inches), moderate to strong instability (SBCAPE 2000 J/KG), very slow steering flow and an upper-level disturbance resulted in a very conducive environment for the generation of thunderstorms producing very heavy…
Read the full account →An upper low over the Central Plains moved into the Upper Mississippi Valley during the evening hours of Friday, March 14, 2025. Increasing moisture advection ahead of an approaching cold front lifted dewpoints into the low to mid 60s.
Read the full account →Significant flash flooding occurred over west Kentucky, as anomalously high amounts of low-level moisture streamed northward over a warm front that became stationary along the Tennessee border.
Read the full account →An upper low over the Central Plains moved into the Upper Mississippi Valley during the evening hours of Friday, March 14, 2025. Increasing moisture advection ahead of an approaching cold front lifted dewpoints into the low to mid 60s.
Read the full account →A slow-moving cold front was draped west to east across the southern Great Lakes during the day of June 18th, 2025, with low pressure near Chicago drifting east toward southern Ontario.
Read the full account →A strong low that passed a few hundred miles north of the state produced gale force winds and heavy rainfall over all of the main Hawaiian Islands. The worst flooding affected O'ahu during the daylight hours of January 30 and southwest Maui that night.
Read the full account →Two separate rounds of severe weather impacted south central Nebraska on this day and brought a variety of severe weather.||The first round of thunderstorms produced a combination of wind and hail along with the first flooding rains of the season.
Read the full account →A strong low pressure system generated a line of strong to severe thunderstorms that started in Illinois and moved across central Indiana. Multiple severe storms were embedded within the line and some of these produced tornadoes.
Read the full account →On April 24, 2025, a vorticity maximum over central Nebraska helped drape a surface front across eastern Nebraska and western Iowa, setting the stage for thunderstorm development throughout the afternoon and evening.
Read the full account →A couple rounds of scattered heavy rains from late on the 28th through the morning of the 29th brought 1 to 2 inches of rainfall, to several areas from Bloomington into parts of Brown County and Lawrence County.
Read the full account →Scattered thunderstorms impacted Middle Tennessee during the afternoon and evening hours of June 16, 2025. With above normal atmospheric moisture values, these thunderstorms were capable of producing very heavy rain.
Read the full account →Scattered thunderstorms impacted Middle Tennessee during the afternoon and evening hours of June 16, 2025. With above normal atmospheric moisture values, these thunderstorms were capable of producing very heavy rain.
Read the full account →A deep upper level trough was observed exiting the southern Rockies during the morning of February 15th, with southwesterly windflow ahead of the trough allowing for a fetch of deep moisture from the western Gulf of America.
Read the full account →