NHC AL041947 · Atlantic basin
Unnamed Hurricane of 1947
September 4, 1947 – September 21, 1947
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
Hurricane Unnamed 1947 storm peaked at Category 4 with 144 mph sustained winds and passed within 75 miles of 477 US cities, 252 of them while still at hurricane strength.
The 1947 storm in the record
HURDAT2 tracks the unnamed storm of 1947 (AL041947) for 17 days, from September 4, 1947 to September 21, 1947. Its first position, at 14.5°N 20.1°W, records it as a tropical depression; its last, at 38.0°N 91.5°W, as an extratropical cyclone. It reached tropical-storm strength on September 5, hurricane strength on September 12 and major-hurricane strength on September 13. Its peak was 144 mph (125 knots), Category 4, on September 14, and its lowest central pressure was 938 millibars on September 14. It spent about 8 days at hurricane strength. HURDAT2 marks 2 landfalls within 50 miles of a US city on this site; they were on September 17 at 132 mph (Category 4), 4 miles from Wilton Manors, FL; on September 19 at 109 mph (Category 2), 17 miles from Buras, LA. It has one more landfall in the record farther from the cities here. Its centre passed within 75 miles of 477 US cities, in 4 states, most in Louisiana (216) and Texas (132), between September 17 and September 20. The strongest pass was 132 mph (Category 4) 10 miles from Pompano Beach, FL; the centre came closest to Bonita Springs, FL, less than a mile away. 252 of the cities had it at hurricane strength at the closest point, 66 at major-hurricane strength. It reached more US cities than 80% of the 737 storms on this site, and ranks 2nd of the 7 storms of 1947 here.
- Peak strength
- Category 4
- Cities within 75 mi
- 477
- At hurricane strength
- 252
- States
- 4
144 mph
when closest
Cities Unnamed 1947 storm passed near, strongest first
Florida (105)
- Pompano BeachCategory 4 · 10 mi
- Deerfield BeachCategory 4 · 14 mi
- Boca RatonCategory 4 · 18 mi
- Delray BeachCategory 4 · 24 mi
- Boynton BeachCategory 4 · 28 mi
- AtlantisCategory 4 · 31 mi
- Palm SpringsCategory 4 · 34 mi
- Lake WorthCategory 4 · 34 mi
- GreenacresCategory 4 · 35 mi
- Palm BeachCategory 4 · 39 mi
- West Palm BeachCategory 4 · 39 mi
- Royal Palm BeachCategory 4 · 43 mi
- Riviera BeachCategory 4 · 43 mi
- North Palm BeachCategory 4 · 47 mi
- Palm Beach GardensCategory 4 · 49 mi
- JupiterCategory 4 · 54 mi
- TequestaCategory 4 · 56 mi
- Hobe SoundCategory 4 · 64 mi
- StuartCategory 4 · 71 mi
- Palm CityCategory 4 · 73 mi
- Wilton ManorsCategory 4 · 4 mi
- Oakland ParkCategory 4 · 6 mi
- AventuraCategory 4 · 10 mi
- Sunny Isles BeachCategory 4 · 11 mi
- Bay Harbor IslandsCategory 4 · 15 mi
- Miami BeachCategory 4 · 19 mi
- Fort LauderdaleCategory 4 · 3 mi
- Dania BeachCategory 4 · 3 mi
- HollywoodCategory 4 · 6 mi
- Hallandale BeachCategory 4 · 8 mi
- Key BiscayneCategory 4 · 28 mi
- North Miami BeachCategory 3 · 12 mi
- Coconut CreekCategory 3 · 13 mi
- North MiamiCategory 3 · 14 mi
- Miami ShoresCategory 3 · 17 mi
- Lauderdale LakesCategory 3 · 3 mi
- LauderhillCategory 3 · 6 mi
- North LauderdaleCategory 3 · 8 mi
- MargateCategory 3 · 11 mi
- PlantationCategory 3 · 2 mi
- DavieCategory 3 · 3 mi
- TamaracCategory 3 · 8 mi
- Miami GardensCategory 3 · 11 mi
- Coral SpringsCategory 3 · 12 mi
- Opa LockaCategory 3 · 13 mi
- WellingtonCategory 3 · 38 mi
- MiramarCategory 3 · 8 mi
- Coral GablesCategory 3 · 25 mi
- SunriseCategory 3 · 4 mi
- Pembroke PinesCategory 3 · 6 mi
- Miami LakesCategory 3 · 14 mi
- HialeahCategory 3 · 15 mi
- MiamiCategory 3 · 24 mi
- South MiamiCategory 3 · 27 mi
- Palmetto BayCategory 3 · 32 mi
- LoxahatcheeCategory 3 · 45 mi
- DoralCategory 3 · 18 mi
- Cutler BayCategory 3 · 37 mi
- WestonCategory 3 · overhead
- HomesteadCategory 3 · 42 mi
and 45 more
Louisiana (216)
- BurasCategory 2 · 16 mi
- Port SulphurCategory 2 · 12 mi
- Saint BernardCategory 2 · 8 mi
- Belle ChasseCategory 2 · overhead
- VioletCategory 2 · 9 mi
- MerauxCategory 2 · 10 mi
- LafitteCategory 2 · 12 mi
- Golden MeadowCategory 2 · 40 mi
- HarveyCategory 2 · 3 mi
- GretnaCategory 2 · 5 mi
- ArabiCategory 2 · 9 mi
- ChalmetteCategory 2 · 10 mi
- GallianoCategory 2 · 31 mi
- SlidellCategory 2 · 35 mi
- Pearl RiverCategory 2 · 43 mi
- MarreroCategory 2 · 1 mi
- New OrleansCategory 2 · 9 mi
- Cut OffCategory 2 · 27 mi
- LacombeCategory 2 · 34 mi
- WestwegoCategory 2 · 2 mi
- HarahanCategory 2 · 4 mi
- MetairieCategory 2 · 7 mi
- LaroseCategory 2 · 29 mi
- MontegutCategory 2 · 37 mi
- Saint RoseCategory 2 · 2 mi
- LulingCategory 2 · 3 mi
- KennerCategory 2 · 6 mi
- LockportCategory 2 · 25 mi
- MandevilleCategory 2 · 34 mi
- Abita SpringsCategory 2 · 42 mi
- ChauvinCategory 2 · 42 mi
- BushCategory 2 · 52 mi
- BogalusaCategory 2 · 62 mi
- DestrehanCategory 2 · overhead
- HahnvilleCategory 2 · overhead
- BoutteCategory 2 · 4 mi
- Des AllemandsCategory 2 · 12 mi
- CovingtonCategory 2 · 40 mi
- AngieCategory 2 · 73 mi
- NorcoCategory 2 · 2 mi
- RacelandCategory 2 · 22 mi
- HoumaCategory 2 · 32 mi
- MadisonvilleCategory 2 · 34 mi
- ReserveCategory 1 · 1 mi
- La PlaceCategory 1 · 4 mi
- GrayCategory 1 · 27 mi
- RobertCategory 1 · 36 mi
- FolsomCategory 1 · 45 mi
- FranklintonCategory 1 · 61 mi
- VacherieCategory 1 · 8 mi
- SchrieverCategory 1 · 27 mi
- PonchatoulaCategory 1 · 28 mi
- GramercyCategory 1 · 3 mi
- LutcherCategory 1 · 4 mi
- PaulinaCategory 1 · 5 mi
- ThibodauxCategory 1 · 22 mi
- HammondCategory 1 · 31 mi
- LorangerCategory 1 · 41 mi
- MaurepasCategory 1 · 10 mi
- SpringfieldCategory 1 · 21 mi
and 156 more
Mississippi (24)
- BiloxiCategory 2 · 67 mi
- DibervilleCategory 2 · 68 mi
- Ocean SpringsCategory 2 · 68 mi
- GautierCategory 2 · 71 mi
- PascagoulaCategory 2 · 72 mi
- Long BeachCategory 2 · 56 mi
- GulfportCategory 2 · 62 mi
- Pass ChristianCategory 2 · 54 mi
- SaucierCategory 2 · 72 mi
- WavelandCategory 2 · 46 mi
- Bay St LouisCategory 2 · 46 mi
- DiamondheadCategory 2 · 52 mi
- KilnCategory 2 · 53 mi
- PicayuneCategory 2 · 53 mi
- CarriereCategory 2 · 61 mi
- PoplarvilleCategory 2 · 74 mi
- MagnoliaCategory 1 · 69 mi
- LibertyCategory 1 · 61 mi
- SmithdaleCategory 1 · 75 mi
- CentrevilleCategory 1 · 49 mi
- GlosterCategory 1 · 59 mi
- WoodvilleCategory 1 · 43 mi
- RoxieCategory 1 · 73 mi
- NatchezCategory 1 · 68 mi
Texas (132)
- NewtonTropical storm · 47 mi
- KirbyvilleTropical storm · 62 mi
- HemphillTropical storm · 17 mi
- BrookelandTropical storm · 38 mi
- JasperTropical storm · 49 mi
- BronsonTropical storm · 26 mi
- ZavallaTropical storm · 49 mi
- ColmesneilTropical storm · 61 mi
- WoodvilleTropical storm · 71 mi
- ShelbyvilleTropical storm · overhead
- JoaquinTropical storm · 5 mi
- CenterTropical storm · 10 mi
- San AugustineTropical storm · 22 mi
- HuntingtonTropical storm · 52 mi
- LufkinTropical storm · 53 mi
- DibollTropical storm · 63 mi
- CorriganTropical storm · 74 mi
- TenahaTropical storm · 3 mi
- GaryTropical storm · 4 mi
- CarthageTropical storm · 5 mi
- TimpsonTropical storm · 11 mi
- De BerryTropical storm · 17 mi
- GarrisonTropical storm · 19 mi
- WaskomTropical storm · 30 mi
- NacogdochesTropical storm · 35 mi
- PollokTropical storm · 54 mi
- BeckvilleTropical storm · 4 mi
- TatumTropical storm · 5 mi
- HendersonTropical storm · 13 mi
- HallsvilleTropical storm · 15 mi
- Mount EnterpriseTropical storm · 20 mi
- MarshallTropical storm · 24 mi
- CushingTropical storm · 33 mi
- KarnackTropical storm · 38 mi
- RuskTropical storm · 46 mi
- AltoTropical storm · 51 mi
- GrapelandTropical storm · 73 mi
- GladewaterTropical storm · 1 mi
- KilgoreTropical storm · 4 mi
- White OakTropical storm · 4 mi
- LongviewTropical storm · 8 mi
- WinonaTropical storm · 9 mi
- GilmerTropical storm · 11 mi
- OvertonTropical storm · 13 mi
- ArpTropical storm · 18 mi
- DianaTropical storm · 21 mi
- TylerTropical storm · 23 mi
- Ore CityTropical storm · 25 mi
- HarletonTropical storm · 25 mi
- WhitehouseTropical storm · 25 mi
- TroupTropical storm · 26 mi
- Lone StarTropical storm · 31 mi
- AvingerTropical storm · 33 mi
- FlintTropical storm · 34 mi
- BullardTropical storm · 36 mi
- JeffersonTropical storm · 36 mi
- Hughes SpringsTropical storm · 38 mi
- JacksonvilleTropical storm · 41 mi
- FrankstonTropical storm · 44 mi
- LindenTropical storm · 47 mi
and 72 more
Other storms of the 1947 season
- Unnamed (AL011947)Tropical storm · 32 cities
- Unnamed (AL031947)Category 1 · 192 cities
- Unnamed (AL051947)Tropical storm · 89 cities
- Unnamed (AL061947)Tropical storm · 641 cities
- Unnamed (AL071947)Tropical storm · 118 cities
- Unnamed (AL091947)Category 2 · 247 cities
About this record
The track is the National Hurricane Center's best-track record, revised after the season with every observation available. Strength at a city is the sustained wind on the track at the closest point, not the wind that city measured.