4,632 first-hand accounts of flood events in Iowa, ranked by impact. Each is a NOAA-written narrative of the moment.
An upper level low pressure moved northeast into the central U.S. during the day on the the 7th. The atmosphere had deep moisture present with precipitable water values in the 1.5 to 1.75 inch range across southern Iowa.
Read the full account →An upper level low pressure moved northeast into the central U.S. during the day on the the 7th. The atmosphere had deep moisture present with precipitable water values in the 1.5 to 1.75 inch range across southern Iowa.
Read the full account →The weather pattern changed only slightly from the day before. A strong upper level trough was in place to the west of Iowa with the surface low and cold front near the western Iowa border, and the warm front bisecting the state.
Read the full account →A very dynamic pattern was in place over the state with a closed low located over southern Canada into the north central U.S. A very strong jet of 85 to 100 kts as present at 250 mb. CAPE by early morning was already 3000 to 4000 J/kg with downdraft CAPE of 1000 to 1400 J/kg.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →A warm front lifted north into Iowa during the day on the 11th. Strong warm air advection took place along with strong moisture transport into Iowa. Thunderstorms formed by mid-day and continued into the afternoon.
Read the full account →A cold front moved slowly south into the state during the day on the 20th. The flow was quite light with overall weak dynamics associated with the system. The atmosphere became unstable by afternoon with around 2000 J/kg of CAPE available.
Read the full account →A very moist airmass was in place with warm cloud depths near 4.5 km. Precipitable water values were in the 2.2 to 2.4 inch range over a large part of Iowa. A thunderstorm complex formed over eastern Nebraska during the evening of the 22nd.
Read the full account →A very moist airmass was in place with warm cloud depths near 4.5 km. Precipitable water values were in the 2.2 to 2.4 inch range over a large part of Iowa. A thunderstorm complex formed over eastern Nebraska during the evening of the 22nd.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River. ||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Water from snow-melt in the upper Midwest moved south through the Mississippi River basin causing major flooding along the Mississippi River.||The snowfall was well above normal for the 2010-11 winter in much of Minnesota and Wisconsin.
Read the full account →Another round of severe weather and heavy rain took place during the late afternoon and evening hours of the 9th, lasting into the early morning of the 10th. A strong shortwave lifted northeast across the area.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
Read the full account →Deep moisture moved into Iowa as a strong shortwave moved into the central U.S. Moisture from former hurricane Norbert moved into the central U.S. as a low pressure system developed over Kansas.
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