A weak trough and remnant outflows initiated afternoon thunderstorms. Initial single cell development across eastern Ohio ultimately congealed along propagating cold pools and surged southeast.
Read the full account →The first in a multi-day event produced widespread large hail, tornadoes, and flash flooding but the largest impacts were felt in the extreme southeastern Texas Panhandle.
Read the full account →Northeast of a slow moving upper low near El Paso, a broad upper trough overspread the South Plains this day. Abundant moisture and very weak wind shear led to several lines and clusters of nearly stationary showers and storms with torrential rainfall.
Read the full account →A potent cold front pushed into an unseasonably warm and humid air mass, generating widespread showers and thunderstorms. There was a considerable amount of both low level and deep layer shear, and some of the storms produced damaging winds.
Read the full account →A weak cold front moved southeast across eastern Ohio and western Pennsylvania the afternoon and evening of the 28th. While some wind damage was reported, more significant flash flooding occurred over portions of Allegheny and Fayette counties in Pennsylvania, with the…
Read the full account →A major severe thunderstorm and flash flood event affected Middle Tennessee from Wednesday, July 6 into Thursday, July 7. Three rounds of thunderstorms called Mesoscale Convective Systems (MCS) moved across the area over these two days, with the first MCS occurring on Wednesday…
Read the full account →A stationary front supported widespread showers and thunderstorms across northern and central Ohio. During the overnight of June 16th into the morning of the 17th heavy showers developed along this boundary.
Read the full account →A stationary front that had brought a series of flash floods to Ohio earlier in the week continued to linger across the area on the afternoon of the 20th. Flash flood watches were in effect for northern and central Ohio for the afternoon and early evening.
Read the full account →Widespread 0.5 to 1.5 inches of rain and significant melting snow at mid and upper elevations caused flash flooding across portions of southern and central Vermont Development of a pre-frontal thunderstorm cluster across southern NY during the early morning hours on the 15th…
Read the full account →A strong upper level storm system moved into the Southern Plains from the Rockies on the 20th and 21st. The attendant warm front moved from northern Texas northward into northeastern Oklahoma during the day on the 20th, and then the cold front associated with this storm system…
Read the full account →A mesoscale convective vortex interacted with a weak cold front over the the southeast states and northeast Gulf of Mexico. The surface low that developed moved southwest across the gulf then northwest into the south central Louisiana coast.
Read the full account →A mesoscale convective vortex interacted with a weak cold front over the the southeast states and northeast Gulf of Mexico. The surface low that developed moved southwest across the gulf then northwest into the south central Louisiana coast.
Read the full account →A developing area of low pressure moved from the Gulf of Mexico on during the night of the 30th and moved north into the eastern Great Lakes as it intensified during the evening of October 31st.
Read the full account →A developing area of low pressure moved from the Gulf of Mexico on during the night of the 30th and moved north into the eastern Great Lakes as it intensified during the evening of October 31st.
Read the full account →As severe storm/flooding events go, some are definitely better-anticipated than others (forecast-wise). Unfortunately, what transpired on this Thursday evening the 22nd into early Friday morning the 23rd fell into the low-predictability category, as an apparent mesoscale…
Read the full account →Thunderstorms developed mid-day along and ahead of a slowly advancing cold front over northwestern North Dakota in an unseasonably moist and unstable atmosphere. The storms then spread south and east through the day.
Read the full account →Surface low pressure moved from the Middle Mississippi Valley into the Great Lakes while a trailing cold front swept across the Mid-South on November 29, 2022. Clusters of storms developed during the late morning as a warm front lifted north ahead of the main system.
Read the full account →Several rounds of heavy rain and thunderstorms moved across the region on the 17th. Rainfall of 3 to 5 inches created pockets of road flooding, along with flash flooding of creeks that affected several dwellings. Larger rivers rose out of their banks in subsequent days.
Read the full account →The second warmest December on record for Eastern Kentucky finished with a warm and moist air mass in place on New Year's Eve. A developing warm front slowly lifted northward out of the Tennessee Valley during the early morning hours on New Year's Day 2022 and stalled near the…
Read the full account →The second warmest December on record for Eastern Kentucky finished with a warm and moist air mass in place on New Year's Eve. A developing warm front slowly lifted northward out of the Tennessee Valley during the early morning hours on New Year's Day 2022 and stalled near the…
Read the full account →The second warmest December on record for Eastern Kentucky finished with a warm and moist air mass in place on New Year's Eve. A developing warm front slowly lifted northward out of the Tennessee Valley during the early morning hours on New Year's Day 2022 and stalled near the…
Read the full account →A strong storm system slowly moved from the central Rockies into the Southern and Central Plains on the 4th and 5th. The associated surface frontal boundary located over northern Texas early on the 4th moved north as a warm front into northwestern Arkansas during the early…
Read the full account →A line of thunderstorms developed into northwestern Arkansas during the morning of the 13th, as a cold front moved into the area. A strong thunderstorm within the line produced hail up to nickel size.
Read the full account →The upper-level high pressure system was located over the Great Basin area on August 16, 2022, while a backdoor front moved into eastern New Mexico before stalling along the east slopes of the central mountain chain.
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