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 →Several rounds of showers and thunderstorms prompted a widespread flash flood problems across the Ohio River Valley on April 2nd to April 3rd.
Read the full account →A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches across southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating multiple towns and communities.
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 →Major Hurricane Helene paralleled the west coast of Florida about 100 miles offshore before making landfall in the Big Bend region of Florida near the city of Perry.
Read the full account →A slow-moving surface trough, heading east to west, and an upper disturbance triggered heavy showers and isolated thunderstorms that caused flash flooding in some instances. Damages occurred to public and private property, including roads and bridges washed out.
Read the full account →Slow moving showers and thunderstorms associated with a broad area of low pressure moved across western Maine through the night of June 25th and into the morning of June 26th.
Read the full account →An upper level trough Gulf Low continued off the west coast that brought a series of atmospheric rivers resulting in flooding across parts of western Washington. This second atmospheric river episode of the month was a set of three atmospheric rivers back-to-back-to-back.
Read the full account →Widespread showers and thunderstorms over the three counties produced general rainfall of 1 to 2 inches, with isolated totals of up to 6 inches between Seguin, Stockdale and Floresville. Numerous rural roads and low water crossings were closed.
Read the full account →Conditions were primed for flash flooding during the afternoon of August 10th. With very little wind shear, very high precipitable water values, and an area of moisture convergence, thunderstorms were able to develop and move very slowly as they poured out.
Read the full account →A series of disturbances propagating along a stationary frontal boundary resulted in widespread heavy rainfall across parts of northwestern Arkansas. Flash flooding occurred across some areas as a result of the heavy rainfall.
Read the full account →A prolonged period of rainfall occurred from the early morning hours of December 26th to the evening of December 28th. The heaviest rainfall occurred in a 50 to 75 mile wide swath from southwest Missouri through the Greater St. Louis Metropolitan Area and into central Illinois.
Read the full account →May 22nd - 24th, 2020 was an active few days with two main time frames of severe weather, and scattered severe weather reports punctuated elsewhere within these few days.
Read the full account →Multiple rounds of heavy rainfall affected Vermont from late afternoon of the 9th through the early morning hours on the 11th. During the roughly 36-hour period, 4 to as much as 9 inches of rain fell across much of the Green Mountains, leading to devastating flash and riverine…
Read the full account →A weak upper-level low moved over Middle Tennessee on May 18, 2023. This combined with plenty of moisture and diurnal heating allowed for scattered showers and thunderstorms during the afternoon and evening hours.
Read the full account →An anomalously-warm and moist air mass was in place across much of the Central Plains and Midwest, resulting in strong to perhaps extreme instability in addition to tropical-like precipitable water values exceeding 2.0 inches.
Read the full account →Historic flash flooding struck parts of far western Kentucky. Among the hardest hit counties was Graves County, which had not completely recovered from a catastrophic tornado in December of 2021.
Read the full account →Historic flash flooding struck parts of far western Kentucky. Among the hardest hit counties was Graves County, which had not completely recovered from a catastrophic tornado in December of 2021.
Read the full account →Several consecutive days of significant severe weather impacted eastern New Mexico from May 24-26, 2023. Showers and thunderstorms developed along the dryline and east slopes of the Sangre de Cristo Mountains on May 23rd.
Read the full account →Several consecutive days of significant severe weather impacted eastern New Mexico from May 24-26, 2023. Showers and thunderstorms developed along the dryline and east slopes of the Sangre de Cristo Mountains on May 23rd.
Read the full account →A stationary front was situated from southeast Missouri into northwest Tennessee during the early morning hours of August 4, 2023. An extremely unstable airmass was situated along and south of the front with surface-based convective available potential energy values of up to…
Read the full account →A warm front was situated over southern Nebraska on the morning of October 12th. Aided by strong mid level winds, thunderstorms developed along this front and lifted quickly north into central Nebraska during the mid to late afternoon hours of October 12th.
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