Hurricane Ida
One of the tropical cyclone disasters on NOAA’s billion-dollar list: $85 billion in losses at 2024 prices ($74 billion at the time) and 96 deaths.
What the offices filed during it
The 102 most significant tropical cyclone episodes filed in these dates, colored by kind.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Losses, 2024 dollars
- $85 billion
- Losses at the time
- $74 billion
- Deaths
- 96
The losses and deaths are NCEI’s, counting everything the disaster did. The episodes below are only what the Weather Service filed in its Storm Events record, which counts damage differently and often not at all, so the two never add up and are shown apart.
By state, as filed
| State | Events | Deaths | Injuries | Damage filed |
|---|---|---|---|---|
| Louisiana | 61 | 30 | 0 | $12 billion |
| New York | 100 | 18 | 0 | $473 million |
| Pennsylvania | 114 | 5 | 2 | $360 million |
| New Jersey | 84 | 29 | 9 | $238 million |
| Mississippi | 81 | 3 | 7 | $16 million |
| Connecticut | 32 | 1 | 0 | $6.1 million |
| South Dakota | 47 | 0 | 0 | $3.9 million |
| Utah | 14 | 0 | 0 | $3.8 million |
| Delaware | 1 | 0 | 0 | $3.6 million |
| Virginia | 60 | 1 | 2 | $2.6 million |
| North Dakota | 23 | 0 | 0 | $2.3 million |
| California | 15 | 2 | 0 | $2.2 million |
| Minnesota | 103 | 0 | 0 | $1.6 million |
| Maryland | 86 | 1 | 4 | $1.3 million |
| Massachusetts | 21 | 0 | 0 | $666,000 |
| Wisconsin | 17 | 0 | 0 | $461,000 |
| Arizona | 27 | 0 | 0 | $193,000 |
| Alabama | 20 | 0 | 3 | $160,000 |
| West Virginia | 39 | 0 | 0 | $153,000 |
| Texas | 4 | 0 | 0 | $100,000 |
| Kentucky | 10 | 0 | 0 | $75,000 |
| Rhode Island | 2 | 0 | 0 | $54,000 |
| Ohio | 10 | 0 | 0 | $30,000 |
| Missouri | 1 | 0 | 0 | $20,000 |
| Florida | 9 | 0 | 0 | $2,000 |
| Indiana | 7 | 0 | 0 | $2,000 |
| Arkansas | 1 | 0 | 0 | $1,000 |
| Nevada | 1 | 0 | 0 | $1,000 |
| Nebraska | 29 | 0 | 0 | |
| Tennessee | 8 | 0 | 0 | |
| Iowa | 4 | 0 | 0 | |
| Illinois | 4 | 0 | 0 | |
| District of Columbia | 2 | 0 | 0 | |
| Kansas | 2 | 0 | 0 | |
| New Mexico | 1 | 0 | 0 |
Episode by episode
- Flash Flood and Flooding in Wisconsin, August 27 to 31, 2021A complex of storms moved across southwest Wisconsin during the evening of August 27th. The storms blew down trees north of Brodtville (Grant County) and power lines in Patch Grove (Grant County).
- Flash Flooding in Pennsylvania, August 28, 2021Thunderstorms brought locally heavy rain to southeastern Pennsylvania during the morning and early afternoon of August 28. Rainfall totals were as high as 2.5 to 4.5 inches.
- Flash Flood in Iowa, August 28, 2021It rained very hard in northeast Iowa the morning of August 28th. Storms moved over the same locations for several hours, resulting in several inches of rain, and some flash flooding in portions of Buchanan County.
- Tornado and Hail in Minnesota, August 28, 2021Severe thunderstorms that developed across South Dakota early Saturday morning, August 28th, quickly moved into west central Minnesota and produced up to 3 diameter hail in Swift County.
- Tornadoes and Flash Flooding in South Dakota, August 28, 2021An unstable warm sector with MUCAPE up to 2000-2500 J/kg developed during the afternoon between an advancing cold front across southeast South Dakota and a gangly warm front extending into southwest Minnesota.
- Flooding in Maryland, August 28, 2021Several rounds of showers and thunderstorms developed ahead of an approaching cold front on August 27th-28th, primarily during the afternoon/evening hours each day. Heavy rainfall occurred with these storms which lead to several instances of flooding across the area.
- Flash Flood in Pennsylvania, August 28, 2021Weak flow aloft and high PWATs (1.77 at PIT), which was just below daily records but in the upper 1-2% of observations at this time of year, created the ideal environment for flash flooding to occur in isolated regions of western PA.
- Tornadoes and Flash Flooding in Minnesota, August 28 to 29, 2021An unstable warm sector with MUCAPE up to 2000-2500 J/kg developed during the afternoon between an advancing cold front across southeast South Dakota, and a gangly warm front extending into southwest Minnesota.
- Flash Flooding and Flooding in West Virginia, August 28, 2021Several rounds of showers and thunderstorms developed ahead of an approaching cold front on August 27th-28th, primarily during the afternoon/evening hours each day. Heavy rainfall occurred with these storms which lead to several instances of flooding across the area.
- Flash Flood and Heavy Rain in Wisconsin, August 28 to 29, 2021Slow moving and training thunderstorms in the vicinity of a warm front caused areas of urban and small stream flooding or flash flooding in east central and southeast WI.
- Flash Flooding and Flood in Arizona, August 28, 2021Scattered thunderstorms moved west across southeast Arizona during the afternoon and evening. Thunderstorm wind gusts downed power poles in Catalina, Kearny and Vail while flash flooding occurred in Nogales and Tucson.
- Tornadoes and Damaging Winds in Minnesota, August 28, 2021A secondary wave of severe thunderstorms developed over southwest Minnesota by the late afternoon of Saturday, August 28th. This area of storms formed a bow-echo that moved from Springfield, east-northeast toward New Ulm, Mankato, and Le Center.
- Flooding in Virginia, August 28, 2021Several rounds of showers and thunderstorms developed ahead of an approaching cold front on August 27th-28th, primarily during the afternoon/evening hours each day. Heavy rainfall occurred with these storms which lead to several instances of flooding across the area.
- Hurricane and Tornadoes in Louisiana, August 28 to 31, 2021The ninth named storm, fourth hurricane, and second major hurricane of the 2021 Atlantic hurricane season, Ida originated from a tropical wave in the Caribbean Sea on August 23rd.
- Hurricane and Tornadoes in Mississippi, August 28 to 31, 2021The ninth named storm, fourth hurricane, and second major hurricane of the 2021 Atlantic hurricane season, Ida originated from a tropical wave in the Caribbean Sea on August 23rd.
- Flash Flood and Hail in Wisconsin, August 28, 2021Another round of slow moving thunderstorms brought heavy rain to portions of central and east-central Wisconsin for the second day in a row during the overnight hours.
- Tornadoes and Tropical Storm in Alabama, August 29 to 31, 2021Hurricane Ida rapidly intensified overnight on August 28th into the morning of August 29th into strong category 4 Hurricane as it approached the northern Gulf coast. Ida made landfall across southeast Louisiana during the late morning on August 29th.
- Flash Flooding in New Jersey, August 29, 2021Thunderstorms brought locally heavy rain to southeastern New Jersey on the afternoon of August 29. Rainfall totals were as high as 2.5 to 4.5 inches.
- Tropical Storm in Louisiana, August 29, 2021The main impacts of Hurricane Ida were felt over Southeast Louisiana, however tropical storm conditions still occurred in South Central Louisiana.
- Flash Flood and Hail in Virginia, August 29, 2021A weak front near the Appalachian Mountains interacted with a warm, moist air-mass |to spark widely scattered thunderstorms. A couple of these storms produced damaging winds and penny size hail, and local rainfall rates of 3 to 4 inches per hour were observed.
- Flood and Damaging Wind in Texas, August 29, 2021On the morning of the 29th a surface low and trough across eastern Colorado that moved south into the combined Panhandles during the afternoon. Convergence associated with these features led to thunderstorm formation in the afternoon hours.
- Flash Flood in Florida, August 29, 2021Hurricane Ida rapidly intensified overnight on August 28th into the morning of August 29th into strong category 4 Hurricane as it approached the northern Gulf coast. Ida made landfall across southeast Louisiana during the late morning on August 29th.
- Flash Flooding and Damaging Winds in Arizona, August 29 to 31, 2021As high pressure responsible for excessive heat began to weaken, monsoon moisture seeped into the Mojave Desert, fueling a round of thunderstorms. Severe winds, flash flooding, and a landspout occurred.
- Flash Flooding and Damaging Wind in California, August 29 to 30, 2021As high pressure responsible for excessive heat began to weaken, monsoon moisture seeped into the Mojave Desert, fueling a round of thunderstorms. Severe winds and flash flooding occurred.
- Tropical Storm and Flash Flooding in Mississippi, August 29 to 30, 2021Major hurricane Ida made landfall as a strong category four hurricane around 11:55am on August 29 near Grand Isle, LA. It then moved very slowly north through south central Louisiana and into Mississippi on August 30.
- Tropical Storm in Louisiana, August 30, 2021Major hurricane Ida made landfall as a strong category four hurricane around 11:55am on August 29 near Grand Isle, LA. It then moved very slowly north through south central Louisiana and into Mississippi on August 30.
- Flooding in Iowa, August 30 to 31, 2021Heavy rainfall in areas of northern Iowa and southern Minnesota on August 27th and 28th allowed rivers such as the Cedar, Shell Rock, and Wapsipinicon to swell, including reaching flood state at Janesville, IA and Cedar Falls, IA.
- Flash Flooding in Mississippi, August 30, 2021Hurricane Ida rapidly intensified overnight on August 28th into the morning of August 29th into strong category 4 Hurricane as it approached the northern Gulf coast. Ida made landfall across southeast Louisiana during the late morning on August 29th.
- Flash Flooding and Flood in West Virginia, August 30, 2021A slow moving cold front approached the Ohio Valley from the north on August 30th combined with a weak upper level disturbance.
- Flash Flooding in Virginia, August 30, 2021A slow moving cold front approached the Ohio Valley from the north on August 30th combined with a weak upper level disturbance.
- Flooding in Indiana, August 30 to 31, 2021Scattered thunderstorms ahead of an approaching cold front produced locally heavy rainfall during the morning hours.
- Flash Flooding and Debris Flow in Kentucky, August 30, 2021Hurricane Ida made landfall in Louisiana at 11:55am CDT on August 29. From here it continued to slowly move inland and northward. By 15Z on August 30, it had reached SW Mississippi.
- Flash Flood and Hail in North Dakota, August 30, 2021A few thunderstorms developed during the late morning hours over central North Dakota where southerly low level flow increased instability, and deep layer shear was elevated. Initially, a nearly stationary supercell developed over Oliver County.
- Flash Flooding in Indiana, August 30, 2021As the remnants of Hurricane Ida moved northeast through the Lower Ohio Valley, its moisture interacted with a near stationary cold front over southern Indiana.
- Tropical Depression in Arkansas, August 30, 2021Major hurricane Ida made landfall as a strong category four hurricane around 11:55am on August 29 near Grand Isle, LA. It then moved very slowly north through south central Louisiana and into Mississippi on August 30.
- Flash Flood and Damaging Wind in Kentucky, August 30, 2021As the remnants of Hurricane Ida moved northeast through the Lower Ohio Valley, its moisture interacted with a near stationary cold front over southern Indiana.
- Flash Flood in Illinois, August 30, 2021A stationary frontal boundary interacting with a warm and humid airmass triggered scattered strong thunderstorms during the late morning and afternoon of August 30th.
- Tornadoes in Alabama, August 30, 2021The remnants of Tropical Cyclone Ida traveled across portions of the Deep South on Monday, August 30th, and into Tuesday, August 31st. Bands of tropical downpours and thunderstorms moved northward across Central Alabama on the east of Ida`s circulation.
- Flash Flood in Missouri, August 30, 2021The most notable feature in regional analysis was Tropical Storm Ida that was centered over west central Mississippi around 20z on August 30th.
- Flash Flooding in Kentucky, August 30, 2021The remnants of Tropical Storm Ida moved north-northeast across the lower Mississippi Valley, spreading moisture northward.
- Flash Flood in Ohio, August 30, 2021A slow moving cold front approached the Ohio Valley from the north on August 30th combined with a weak upper level disturbance.
- Flooding and Heavy Rain in Tennessee, August 30, 2021Scattered showers and t'storms developed on August 30th as the remnants of Ida moved through Middle TN. Some heavy downpours led to isolated flash flooding in areas.
- Flash Flood in Tennessee, August 30, 2021As Tropical Cyclone Ida moved northward from the Gulf Coast into central Mississippi, her convective bands produced locally heavy rainfall over the far southern portions of the east Tennessee.
- Flash Flood in Illinois, August 30, 2021The remnants of Tropical Storm Ida moved north-northeast across the lower Mississippi Valley, spreading moisture northward.
- Flash Flood and Damaging Winds in California, August 30, 2021An upper level low sitting off the coast of the northern Baja Peninsula promoted diffluent flow over southeast California. The moist, unstable environment combined with adequate forcing mechanisms allowed for strong to severe thunderstorms to develop.
- Flood in Indiana, August 30, 2021The remnants of Tropical Storm Ida moved north-northeast across the lower Mississippi Valley, spreading moisture northward.
- Flash Flood in Virginia, August 30, 2021Scattered thunderstorms well in advance of a cold front produced heavy rain which caused flash flooding across portions of central Virginia.
- Flash Flooding and Flood in Nebraska, August 30 to 31, 2021Theta-e advection and a stationery front helped initiate storms across eastern Nebraska. The largest hail reports were for 2.5 inch hail and peak wind gusts were near 70 mph. Additionally, flash flooding was reported in Cedar County due to heavy precipitation.
- Tropical Depression in Alabama, August 30 to 31, 2021The outer bands of T.D. Ida produced stronger thunderstorms at times during the evening hours of the 30th. Winds associated with the depression knocked down numerous trees and a few power lines in far northwest Alabama.
- Flash Flood and Damaging Winds in Florida, August 31, 2021The center of the remnants of Hurricane Ida moved well west and north of the region. However, a trailing band of showers and thunderstorms brought gusty winds to the area with a few reports of wind damage and flooding.
- Flash Flood in Florida, August 31, 2021Heavy rain caused flash flooding in the western Florida panhandle.
- Flooding in Ohio, August 31, 2021Showers and embedded thunderstorms associated with the remnants of Hurricane Ida produced locally heavy rain through the day.
- Flash Flood in Ohio, August 31, 2021Slow moving thunderstorms developed along stationary frontal boundary that stretched east/west near I-70. The favorable environment, tall/skinny CAPE profiles and warm cloud|depths up to 4 km, helped drive more efficient rain rates.
- Flash Flooding in Pennsylvania, August 31, 2021Slow moving thunderstorms developed along stationary frontal boundary that stretched east/west near I-70. The favorable environment, tall/skinny CAPE profiles and warm cloud|depths up to 4 km, helped drive more efficient rain rates.
- Flash Flood in Illinois, August 31, 2021A cluster of slow moving storms formed the afternoon of August 31st in northwest Illinois. These dropped 1 to 4 1/2 inches of rain in a short period of time.
- Flash Flood and Flooding in Tennessee, August 31, 2021Thunderstorms associated with the remnants of Tropical Cyclone Ida moved across parts of East Tennessee. One storm blew down trees and powerlines in Rhea County.
- Flash Flooding and Damaging Winds in California, August 31, 2021A similar pattern existed on the 31st compared to the previous day with an upper level low in the eastern Pacific near the west coast of the Baja Peninsula promoting diffluent flow across southeast California.
- Tornadoes in Alabama, August 31, 2021The center of the remnants of Hurricane Ida moved well west and north of the region. However, a localized favorable environment of instability and shear existed across a small area of southeast Alabama with a few brief, weak tornadoes reported.
- Flash Flood in New Mexico, August 31, 2021A weak area of high pressure was centered over eastern New Mexico on August 31, 2021, which allowed for a weak monsoon moisture plume to begin to develop across the area.
- Flood in Arizona, August 31, 2021Moisture from the remnants of tropical system Nora produced moderate to heavy rainfall during the afternoon and evening hours with totals of 1 to 2 inches common and up to 3 inches in mountains, but the prolonged nature of the rain led to little if any significant flooding.
- Tornadoes and Damaging Winds in Virginia, August 31, 2021Storms and tornadoes occurred on the last day of August thanks to the atmospheric conditions provided by the remnants of Hurricane Ida moving over the Mid-Atlantic.
- Flash Flood in Arizona, August 31, 2021A weak area of low pressure from southern California through southern Nevada helped draw monsoon moisture northward across Arizona. Scattered showers and storms developed over the high terrain. A few of the storms produced rain rates of nearly 2 inches an hour.
- Flash Flooding and Heavy Rain in Pennsylvania, September 1, 2021The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
- Flash Flooding and Flooding in Virginia, September 1 to 2, 2021The remnants of Ida produced widespread flooding along with instances of flash flooding across the area. Tropical moisture infiltrated the area and there were moderate amounts of instability as well.
- Flash Flooding and Heavy Rain in West Virginia, September 1, 2021The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
- Flash Flooding and Heavy Rain in Ohio, September 1, 2021The remnant low pressure center of Hurricane Ida passed across West Virginia and the Central Appalachian Mountains from late August 31st through September 1st.
- Flooding in Wisconsin, September 1 to 2, 2021River flooding that began in late August along the Black River near Galesville (Trempealeau County) and the Yellow River in Necedah (Juneau County) ending early in September.
- Flood in Iowa, September 1, 2021Heavy rainfall across portions of northern and northeast Iowa from the end of August caused portions of the Cedar River to go into flood stage at Cedar Falls and Janesville. While Janesville receded by the end of August, Cedar Falls lingered briefly into early September.
- Tornadoes and Damaging Winds in Maryland, September 1, 2021The remnants of Ida produced two tornadoes and sporadic straight line wind damage.
- Flash Flooding and Flooding in Maryland, September 1 to 3, 2021The remnants of Ida produced widespread flooding along with instances of flash flooding across the area. Tropical moisture infiltrated the area and there were moderate amounts of instability as well.
- Flash Flood in Illinois, September 1, 2021As an outflow boundary moved south across the forecast area, scattered showers and storms developed along it. Some of the storms produced heavy rain causing flash flooding.
- Flash Flood and Flood in District of Columbia, September 1, 2021The remnants of Ida produced instances of flooding and flash flooding across the area. Tropical moisture infiltrated the area and there were moderate amounts of instability as well.
- Flash Flood in Arizona, September 1, 2021After strong to severe thunderstorms produced damaging winds and flash flooding across southeast California during the afternoon and evening of August 31st, upper level dynamic support along with abundant moisture remained favorable for isolated showers and thunderstorms to…
- Flash Flooding and Flood in West Virginia, September 1, 2021The remnants of Hurricane Ida surged into West Virginia on the first day of September and interacted with a stalled frontal boundary near the area.
- Tornado and Flash Flooding in Utah, September 1 to 2, 2021Several rounds of thunderstorms brought severe weather hazards to the state of Utah, including flash flooding in southern and eastern Utah, and damaging winds, hail, and a tornado in Northern Utah.
- Flash Flooding and Flooding in Pennsylvania, September 1 to 3, 2021The remnants of Hurricane Ida produced widespread heavy rainfall across Pennsylvania. Additionally, thunderstorms were observed southeast Of I-81 and the PA Turnpike. One of these storms produced wind damage in Adams County.
- Flash Flooding in Arizona, September 1 to 2, 2021A surge of tropical moisture, combined with a an upper level low centered over an area near state borders of Arizona, Nevada and California is producing moderate rainfall over|central and northern Arizona.
- Flash Flooding in Pennsylvania, September 1, 2021A shield of moderate to heavy rainfall, associated with the remnants of tropical cyclone Ida, moved from the DelMarVa peninsula to New England.
- Flood in West Virginia, September 1, 2021The remnants of Ida produced widespread flooding along with instances of flash flooding across the area. Tropical moisture infiltrated the area and there were moderate amounts of instability as well.
- Flash Flooding in Pennsylvania, September 1, 2021Post 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.
- Tornadoes in Pennsylvania, September 1, 2021The remnants of Hurricane Ida impacted the mid-Atlantic on September 1, 2021. As it moved northward, Ida began transitioning to a strong mid-latitude cyclone with pronounced frontal features, but with continued tropical moisture.
- Flash Flood in Delaware, September 1, 2021Post Tropical Cyclone Ida brought heavy rain to much of Delaware on September 1. Rainfall totals were as high as 2 to 6 inches. The heavy rain resulted in flash flooding in the northern part of the state.
- Tornado and Damaging Winds in Maryland, September 1, 2021The remnants of tropical cyclone Ida tracking northeast through the area produced damaging winds and one weak tornado across portions of the Lower Maryland Eastern Shore.
- Flash Flood in Nevada, September 1, 2021Lingering monsoon moisture fueled a few thunderstorms in Lincoln County. One storm produced flash flooding.
- Flash Flooding in New York, September 1 to 2, 2021Extremely 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.
- Flash Flooding in New Jersey, September 1 to 2, 2021Post Tropical Cyclone Ida brought heavy rain to New Jersey on September 1. Rainfall totals were as high as 5 to 10 inches. The heavy rain caused significant flash flooding, mainly in the northern half of the state. It resulted in widespread property damage.
- Tornadoes and Damaging Winds in New Jersey, September 1, 2021The remnants of Hurricane Ida impacted the mid-Atlantic on September 1, 2021. As it moved northward, Ida began transitioning to a strong mid-latitude cyclone with pronounced frontal features, but with continued tropical moisture.
- Flash Flooding and Flooding in New Jersey, September 1 to 3, 2021Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread northeast New Jersey during the evening of September 1 and continued through the early morning hours of September 2.
- Coastal Flood in Maryland, September 1 to 2, 2021The remnants of tropical cyclone Ida tracked northeast through the area during Wednesday, September 1st into the early morning hours of Thursday, September 2nd.
- Coastal Flood in New Jersey, September 1 to 3, 2021Runoff from the heavy rain associated with Post Tropical Cyclone Ida produced moderate to major flooding along the tidal Delaware River on the night of September 1. There was another round of moderate flooding on the night of September 2.
- Coastal Flood in Pennsylvania, September 1 to 3, 2021Runoff from the heavy rain associated with Post Tropical Cyclone Ida produced moderate to major flooding along the tidal Delaware River on the night of September 1. There was another round of moderate flooding on the night of September 2.
- Flash Flooding and Flood in New York, September 1, 2021The remnants of Tropical Cyclone Ida resulted in widespread flash flooding over Ulster and Dutchess Counties during the late evening of September 1 where 3 to 7 inches of rain fell.
- Flash Flooding in New York, September 1 to 2, 2021A shield of moderate to heavy rainfall, associated with the remnants of tropical cyclone Ida, moved from the DelMarVa peninsula to New England.
- Flash Flooding and Flooding in Connecticut, September 1 to 2, 2021Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread southern Connecticut during the evening of September 1 and continued through the early morning hours of September 2.
- Flash Flooding in Texas, September 1, 2021Weak southwest flow aloft brought up the remnants of Hurricane Nora into the Borderland. Heavy rain fell across Far West Texas with flash flooding reported in El Paso and Hudspeth counties.
- Flash Flooding and Flood in Connecticut, September 2, 2021The remnants of Tropical Cyclone Ida resulted in several reports of flash flooding over during the early morning hours of September 2. Rainfall from the evening of the 1st through the early morning hours of the 2nd totaled three to six inches.
- Tornado and Flash Flooding in Massachusetts, September 2, 2021On Sept. 1, Tropical Depression Ida tracked northeasward from the central Appalachians and arrived in southern New England late in the day as a remnant low.
- Flash Flooding in Connecticut, September 2, 2021On Sept. 1, Tropical Depression Ida tracked northeasward from the central Appalachians and arrived in southern New England late in the day as a remnant low.
- Flash Flooding in Rhode Island, September 2, 2021On Sept. 1, Tropical Depression Ida tracked northeasward from the central Appalachians and arrived in southern New England late in the day as a remnant low.
- Flash Flood and Flooding in Florida, September 2, 2021The combination of high pressure sinking southward and Tropical Depression Ida moving across the NE United States allowed for a mid-level trough and deep moisture to sink southward across the region.
- Flash Flood in Arizona, September 2, 2021Lingering monsoon moisture fueled a few thunderstorms in Mohave County. One storm produced flash flooding.
- Flash Flood and Damaging Wind in Kansas, September 2 to 3, 2021Two rounds of storms occurred late on 9/2 and early on 9/3, producing isolated wind damage and flash flooding.
More
Every billion-dollar disasterEvery storm of 2021The 2021 hurricane seasonTornadoes in 2021
Sources
NOAA NCEI, U.S. Billion-Dollar Weather and Climate Disasters (2025), https://doi.org/10.25921/stkw-7w73, and the Storm Events Database for the episodes.