4,632 first-hand accounts of flood events in Iowa, ranked by impact. Each is a NOAA-written narrative of the moment.
A strong warm front was positioned southwest of Iowa during the early morning of the the 24th. A 40 to 50 kt low level jet transported a considerable amount of moisture northeast across the frontal boundary.
Read the full account →A strong warm front was positioned southwest of Iowa during the early morning of the the 24th. A 40 to 50 kt low level jet transported a considerable amount of moisture northeast across the frontal boundary.
Read the full account →A strong warm front was positioned southwest of Iowa during the early morning of the the 24th. A 40 to 50 kt low level jet transported a considerable amount of moisture northeast across the frontal boundary.
Read the full account →A strong warm front was positioned southwest of Iowa during the early morning of the the 24th. A 40 to 50 kt low level jet transported a considerable amount of moisture northeast across the frontal boundary.
Read the full account →A strong warm front was positioned southwest of Iowa during the early morning of the the 24th. A 40 to 50 kt low level jet transported a considerable amount of moisture northeast across the frontal boundary.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A cold front moved through Iowa during the afternoon of the 11th into the morning of the 12th. The front stalled over southeast Iowa in response to a strong upper level ridge of high pressure building in the central and southeast U.S.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours.
Read the full account →Low pressure developed over Kansas with a strong southerly flow of very moist air streaming into Iowa ahead of it. Surface temperatures warmed into the 80s with dew point readings in the low to mid 70s.
Read the full account →The warm front from the previous night lifted north of the state as low pressure pushed northeast out of Kansas across northwest Iowa. The atmosphere became quite unstable. Lifted indices fell to -6 to -8, with CAPE values in the 1000 to 2000 J/kg range.
Read the full account →The warm front from the previous night lifted north of the state as low pressure pushed northeast out of Kansas across northwest Iowa. The atmosphere became quite unstable. Lifted indices fell to -6 to -8, with CAPE values in the 1000 to 2000 J/kg range.
Read the full account →A strong weather system moved through the central U.S. during the late afternoon of the 3rd through the early morning of the 4th. The system resembled a winter type system as strong low pressure at the surface developed over Kansas and moved northeast into Missouri.
Read the full account →A strong weather system moved through the central U.S. during the late afternoon of the 3rd through the early morning of the 4th. The system resembled a winter type system as strong low pressure at the surface developed over Kansas and moved northeast into Missouri.
Read the full account →A strong upper level low pressure trough over the western U.S. moved into the central states during the day on the 12th. The situation was quite similar to the event 2 days prior, though the severe weather was farther north.
Read the full account →A nearly stationary front was located across southeast Iowa. A strong upper level low pressure system lifted northeast across the central U.S. An area of thunderstorms developed along the front and trained northeast across southeast Iowa.
Read the full account →A weak cold front moved southeast across Iowa early on the 4th and had become stationary east-west to the south of the state. The thermal gradient increased during the day and moisture pooled along the front by evening.
Read the full account →A weak cold front moved southeast across Iowa early on the 4th and had become stationary east-west to the south of the state. The thermal gradient increased during the day and moisture pooled along the front by evening.
Read the full account →The frontal boundary that moved through the state during the previous night retreated northwest and allowed the atmosphere to reload. CAPE rose to 2000 to 3000 J/kg by mid morning with downdraft CAPE values in the 1400 to 1600 J/kg range and available CAPE in the -10 to -30…
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