Hurricane Florence was a long-lived Cape Verde hurricane and the wettest tropical cyclone on record in the Carolinas. The sixth named storm, third hurricane, and the first major hurricane of the 2018 Atlantic hurricane season, Florence originated from a strong tropical wave that…
Read the full account →A stationary front draped east to west across northern North Carolina provided the focus for training showers and thunderstorms during the evening of the 17th.
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 →After major flash flooding took place across parts of the state the day before, additional flash flooding occurred on the afternoon of August 29th in Harrison County.
Read the full account →Low pressure began organizing in the Gulf of Mexico on the 16th, setting record low sea level pressures as it traversed the Southeast through the 17th.
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 →Just 367 days after the last of the Great June Flood of 2018 had left its memorable mark on nearly all of the populated Rio Grande Valley, a confluence of atmospheric events came together during the late afternoon and evening of June 24th, 2019, to produce another memorable -…
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 thunderstorm developed over the City of Roanoke just before 6:45 pm EDT on August 21st, initially producing rainfall rates to nearly 5 per hour.
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 →Tropical Storm Chantal made landfall over northeastern South Carolina during the morning hours of July 6. The remnants of Chantal then tracked west-northwest into portions of central North Carolina, stalling out over the area before tracking east-northeast into Virginia by the…
Read the full account →A nearby trough, coupled with a very moist airmass, led to the development of a line of showers and thunderstorms in New Mexico during the morning of the 13th.
Read the full account →A 971mb bomb cyclone moved out of the central Rockies on Wednesday, March 13, 2019 and helped to create widespread, moderate to major, and in many cases historic, flooding across eastern Nebraska and western Iowa.
Read the full account →Lake Erie remained at record levels during the month of July. Lake Erie received 110% above average precipitation for July. Overall outflows exceeded inflows for Lake Erie, so water levels were able to peak and then slowly subside.
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 →Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread southeast New York during the evening of September 1 and continued through the early morning hours of September 2.
Read the full account →A broad area of low pressure across the Great Lakes region stalled out well to the west of the region early on Sunday, April 30th. A secondary area of low pressure developed and moved up the Eastern Seaboard and tracked across interior New England from Sunday, April 30th…
Read the full account →Isolated strong thunderstorms developed across portions of the greater Phoenix area during the mid afternoon hours on July 31st. One storm produced a wind gust to 64 mph at the Deer Valley airport.
Read the full account →Total rainfall amounts of 10-15 inches occurred across parts of east Arkansas, the Missouri Bootheel, West Tennessee, and extreme northwest Mississippi during the April 2- April 5 event.
Read the full account →Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread southeast New York during the evening of September 1 and continued through the early morning hours of September 2.
Read the full account →A area of low pressure slowly moved across South Louisiana during the 12th, 13th, and 14th. A widespread area of 6 inches or more fell across the region with some locations receiving more than 20 inches.
Read the full account →Post Tropical Cyclone Ida brought heavy rain to eastern Pennsylvania on September 1. Rainfall totals were as high as 5 to 10 inches. The heavy rain caused significant flash flooding, mainly in the southeastern part of the state. It resulted in widespread property damage.
Read the full account →Helene first developed into a tropical storm in the northwest Caribbean Sea in the late morning of September 24, and strengthened into a hurricane near the Yucatan peninsula about 24 hours later.
Read the full account →A very slow moving low pressure system advanced east from the central Plains. Unusually deep moisture was pushed northward into the Great Lakes region, ahead of this low. Multiple rounds of heavy rain fell in parts of northern lower Michigan on the 17th and 18th.
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