# Kp and Ap from GFZ, CC BY 4.0. Dst from WDC Kyoto, doi:10.17593/14515-74000: scientific use, no commercial use; we acknowledge the WDC and the observatories that supply the data. Reports are summarized from the page's sources. Sightings are not a census.
storm_ut_days,highest_kp,highest_kp_value,highest_daily_ap,lowest_dst_nT,kp9_reading_A_9o_only,kp9_reading_B_9m_or_9o,florida_named,reports,sources
1938-01-21 to 1938-01-22,8+,8.333,128,Dxt -340; Dcx -328,no,no,no,"Overhead at Los Angeles (40.9 deg) with a glow overhead at Escondido (40.1); reported overhead at Noto, Sakhalin (39.2 MLAT), nearly so on Love et al.'s reading; seen from Morioka (29.5 MLAT) up to about 20 deg elevation",Love 2025 Table 1; Hayakawa 2021 sec. 4
1938-01-25 to 1938-01-26,9-,8.667,107,Dxt -350; Dcx -336,no,yes,no,"Gibraltar, Sicily, Greece; up to 45 deg elevation at Patras (37.3 MLAT); vessel off South Africa (31.8 S, -29.9 MLAT)",Hayakawa 2021 sec. 3-4
1938-04-16,9o,9.000,136,Dxt -255,yes,yes,no,"Overhead at Long Beach, California (40.5 deg)",Love 2025 Table 1
1940-03-24 to 1940-03-25,9o,9.000,187,Dst* -389,yes,yes,no,"Overhead at Case Observatory, Ohio (52.5 deg)",Love 2025 Table 1
1941-03-01,9o,9.000,207,Dst* <= -464,yes,yes,no,"Overhead at Kalgoorlie, Australia (30.7 S, 41.3 deg); oval's edge about 38.5 ILAT",Love 2025 Table 1; Hayakawa 2023 sec. 7
1941-07-04 to 1941-07-05,9o,9.000,222,Dxt -451,yes,yes,no,"Overhead at Gaviota, California (40.9 deg)",Love 2025 Table 1
1941-09-18 to 1941-09-19,9o,9.000,232,Dxt -415,yes,yes,no,"Overhead at Riverina, Australia (43.9 deg); New Mexico",Love 2025 Table 1; Love and Coisson 2016
1946-03-28,9-,8.667,213,Dst* <= -512,no,yes,no,"Overhead at Broken Hill, Australia (32.0 S, 41.5 deg)",Love 2025 Table 1
1957-03-01 to 1957-03-02,8+,8.333,132,-255,no,no,no,"Rays to Mochita (32.3 MLAT); red glow to Kuji (30.1 MLAT), part perhaps a SAR arc; oval's edge 40.6 ILAT (35.9 if all of Kuji's glow was aurora)",Hayakawa 2023 sec. 3
1957-09-13,9-,8.667,160,-427,no,yes,no,Seen from Mori (31.9 MLAT); overhead at Fresno (43.3 deg); oval's edge 38.3 ILAT,Hayakawa 2023 sec. 4; Love 2025 Table 1
1958-02-10 to 1958-02-11,9o,9.000,199,-426,yes,yes,no,Mexico City (29.3 MLAT); Ogori (23.3 MLAT); rays at Niigata (27.7 MLAT); oval's edge 33.3 ILAT,Hayakawa 2023 sec. 5
1959-07-15,9o,9.000,236,-429,yes,yes,no,Seen at 27.4 MLAT (China); oval's edge 35.4 ILAT; overhead in Heilungkiang (36.3 deg),Hayakawa 2024 Abstract; Love 2025 Table 1
1960-11-13,9o,9.000,280,-339,yes,yes,no,"Overhead at Columbus, Indiana (50.0 deg)",Love 2025 Table 1
1967-05-25 to 1967-05-26,9o,9.000,146,-387,yes,yes,no,"Overhead at Greenville (43.8 deg). Love's table says Alabama; its latitude and cited paper (Delta Democrat-Times) fit Greenville, Mississippi (33.4 N)",Love 2025 Table 1; our note
1972-08-04 to 1972-08-05,9o,9.000,182,-125,yes,yes,no,Satellite edge 53.1 deg: Kp 9o with Dst only -125 nT,Love 2025 Table 2
1981-04-12 to 1981-04-13,8+,8.333,121,-311,no,no,lead,"Every 1981 storm tops out at Kp 8+. A 2025 Florida newspaper article says aurora reached South Florida in 1981, with no date or primary source",USA TODAY Network-Florida 2025
1982-07-13 to 1982-07-14,9o,9.000,153,-325,yes,yes,no,No report found by us,-
1986-02-08 to 1986-02-09,9o,9.000,202,-307,yes,yes,no,Satellite edge 40-44 deg,Love 2025 Table 2
1989-03-13 to 1989-03-14,9o,9.000,246,-589,yes,yes,yes,"Overhead at Kosciusko, Mississippi (43.1 deg); visible to 29 MLAT. Florida: First Coast (Times-Union, as retold 2025); Bill Williams recalls seeing it in Florida in 2003 and 1989",Love 2025 Table 1; Hayakawa 2019 Table 1; USA TODAY Network-Florida 2025; Spaceweather 27 Mar 2023
1991-11-08 to 1991-11-09,9-,8.667,119,-354,no,yes,no,"Overhead at Mali Losinj, Croatia (44.2 deg)",Love 2025 Table 1
2000-04-06 to 2000-04-07,9-,8.667,82,-292,no,yes,yes,"One Florida photograph found, over Rosemary Hill Observatory, central Florida. NASA's release also says Florida but shares its author with the site; NASA's earlier APOD says as far south as North Carolina, which doesn't conflict",Spaceweather galleries index; NASA Marshall 2000; APOD 2000-04-10
2001-03-31,9-,8.667,192,-387,no,yes,no,"Reached Texas, southern California and Mexico; overhead at Payson, Arizona (41.8 deg)",Spaceweather 1 Apr 2001; Love 2025 Table 1
2001-10-21 to 2001-10-22,8-,7.667,96,-187,no,no,no,"Sensitive all-sky record in northern Japan, at about Florida's magnetic latitude","Shiokawa et al., JpGU 2005 abstract"
2001-11-06,9-,8.667,142,-292,no,yes,yes,"Reached Florida, Texas and California, the site says; no Florida photograph among its gallery's 70 or so entries",Spaceweather 6-8 Nov 2001
2001-11-24,8+,8.333,104,-221,no,no,no,Reached Arkansas and Texas,Spaceweather 25-26 Nov 2001
2003-10-29,9o,9.000,204,-383,yes,yes,yes,"Reached Florida, New Mexico, Arizona and Texas, the site says; NOAA: sightings from California to Houston to Florida (29-30 Oct); no Florida photograph in the site's gallery, one from near Houston (29.8 N)",Spaceweather 30 Oct 2003; NOAA 2004 p. 26
2003-10-30,9o,9.000,191,-383,yes,yes,yes,"As above; Kyoto's Dst recovered to -97 nT between the two dips (-353 nT, 01 UT; -383 nT, 23 UT)",Spaceweather 30 Oct 2003; NOAA 2004 p. 26
2003-11-20,9-,8.667,150,-422,no,yes,yes,"Reached Florida and Greece, the site's next-day sentence; no Florida photograph among its gallery's two dozen or so entries; the 9- came in Florida's daylight; overhead at Strathalbyn, Australia (43.7 deg)",Spaceweather 21-22 Nov 2003; Love 2025 Table 1
2004-11-07 to 2004-11-10,9-,8.667,161,-374,no,yes,inferred,Every US state except Hawaii (index); Alabama and California (9 Nov). Florida only inferred,Spaceweather galleries index; 8-9 Nov 2004
2005-05-15,8+,8.333,87,-247,no,no,no,"California and Arizona; overhead at Mount Arapiles, Australia (44.9 deg)",Spaceweather 16 May 2005; Love 2025 Table 1
2017-09-07 to 2017-09-08,8+,8.333,106,-148,no,no,no,Reached Arkansas,Spaceweather 9 Sep 2017
2023-02-26 to 2023-02-27,7-,6.667,91,-132,no,no,no,All-sky imager at Rikubetsu (34.7 MLAT),"Manu et al. 2025, preprint"
2023-03-23 to 2023-03-24,8o,8.000,73,-163,no,no,yes,"One 26-minute exposure, Chiefland (29.4 N): a red glow the site judged most likely aurora. New Mexico (32.8 N) on video",Spaceweather 26-27 Mar 2023; The Watchers 2023
2023-04-23 to 2023-04-24,8+,8.333,72,-213,no,no,no,"Terlingua, Texas (29.5 N), camera; southern California; Spain's coast (37 N); Hanle, India, all-sky camera, though the authors find the aurora itself stayed far to the north",Spaceweather 24-25 Apr 2023; Vichare 2024
2023-11-05,7+,7.333,61,-163,no,no,no,"Texas (33.6 N), Arizona; red SAR arcs",Spaceweather 6-7 Nov 2023
2024-05-10 to 2024-05-11,9o,9.000,271,-406,yes,yes,yes,"Big Pine Key (24.7 N), by smartphone; Puerto Rico (18.1 N); Mazatlan (23.2 N); naked eye to -23.2 MLAT, oval's edge 29.8-35.5 ILAT",Spaceweather 11 May 2024; Hayakawa 2025 pp. 34-35
2024-08-12,8o,8.000,127,-188,no,no,no,"Reached Texas, Mississippi and Arizona",Spaceweather 13 Aug 2024
2024-10-10 to 2024-10-11,9-,8.667,116,-333,no,yes,yes,"Key West (24.7 N), photo; Lake Mary; Mazatlan; Toa Baja, Puerto Rico (18.4 N); ship south of Cuba (about 21 N)",Spaceweather 11-12 Oct 2024; ClickOrlando 2024
2025-01-01,8o,8.000,81,-212,no,no,no,"Mexico (Mexicali), Colorado and Arizona; the site's next-day page files the Mexicali photo under SAR images",Spaceweather 2-3 Jan 2025
2025-06-01,8-,7.667,98,-119,no,no,no,"Tres Piedras, New Mexico (36.6 N); a doubtful photo from Louisiana",Spaceweather 2 Jun 2025
2025-11-11 to 2025-11-12,9-,8.667,137,-217,no,yes,yes,"New Port Richey (28 N), Tucson (32 N), Usulutan, El Salvador (13 N), all by naked eye per the site; Shired Island, Florida, camera",Spaceweather 13 Nov 2025; APOD 2025-11-14; Shaw 2026
2026-01-19 to 2026-01-21,9-,8.667,144,-236,no,yes,yes,"Alabama, Georgia, New Mexico, Arizona and California; press: first night did not reach Florida; near Key West, one photographer's iPhone 15 photos, 10 s by the photographer's note, night of 20 Jan, a red glow",Spaceweather 20-21 Jan 2026 and gallery item 230497; USA TODAY Network-Florida 20 Jan 2026
2026-03-20 to 2026-03-22,7o,7.000,78,-105,no,no,no,Arizona,Spaceweather 23 Mar 2026