A compact area of low pressure formed south-southeast of Acapulco, Mexico, and became a tropical depression late on 24 June 2017. The system strengthened to Tropical Storm Dora by 0600 UTC 25 June and moved generally west-northwestward, tracking roughly parallel to Mexico’s southwestern coast. Dora underwent a period of rapid strengthening from 0600 UTC 25 June to 1800 UTC 26 June, reached peak strength on 26 June, and then weakened as it moved over colder waters before losing tropical characteristics on 28 June. The remnant low persisted several more days over the eastern Pacific and dissipated by 1 July.
Dora did not make any landfalls. It moved parallel to the coast of southwestern Mexico at sea and remained offshore for its entire tropical phase; no coastal watches or warnings were issued.
The storm’s maximum sustained winds were estimated at 90 kt (about 104 mph) at 1800 UTC 26 June, with a minimum central pressure of 974 mb. That peak intensity corresponded to a Category 2 hurricane on the Saffir–Simpson scale.
Storm surge impacts were minimal to none along the coast given Dora stayed offshore; there were no specific coastal surge measurements reported in the NHC record. Rainfall from Dora’s outer rainbands produced localized flooding in parts of southwestern Mexico. The governor of Guerrero reported flooded homes in the cities of Chilpancingo, Tixtla, and Ayutla de los Libres, but the report did not give detailed totals for rainfall at those locations.
There were no reported fatalities—no direct or indirect deaths were attributed to Dora in the NHC report. Damage was limited and largely confined to localized flooding of homes in portions of Guerrero; no widespread or major destruction was reported.
Noteworthy points: Dora’s genesis from a large Central American circulation combined with a tropical wave was forecast with moderate lead time, and NHC track forecasts performed well (errors smaller than recent averages). However, Dora’s rapid intensification was not well anticipated, and intensity forecasts had larger errors during the 12–36 hour period when Dora strengthened quickly.
Paid members can generate summaries tailored to the counties of their choice. The Dora TCR covers impacts across many counties and states — a Pinellas County resident doesn't need the Asheville detail, and a Buncombe County resident doesn't need the Tampa surge data.
Upgrade for county-specific summariesSummary above produced from the National Hurricane Center's official post-storm Tropical Cyclone Report. Read the full report for casualty lists, damage estimates by area, forecast critique, and detailed meteorological discussion:
📄 Read NHC's full report on Dora → (opens at nhc.noaa.gov)| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 2017-06-24 00:00 | LO | 12.80 | -96.50 | 25 | 1008 | |
| 2017-06-24 06:00 | LO | 13.00 | -97.20 | 25 | 1008 | |
| 2017-06-24 12:00 | LO | 13.20 | -97.90 | 25 | 1008 | |
| 2017-06-24 18:00 | TD | 13.60 | -98.70 | 25 | 1007 | |
| 2017-06-25 00:00 | TD | 14.00 | -99.50 | 30 | 1006 | |
| 2017-06-25 06:00 | TS | 14.40 | -100.40 | 35 | 1005 | |
| 2017-06-25 12:00 | TS | 14.90 | -101.40 | 40 | 1003 | |
| 2017-06-25 18:00 | TS | 15.50 | -102.60 | 45 | 1001 | |
| 2017-06-26 00:00 | TS | 16.10 | -103.80 | 55 | 999 | |
| 2017-06-26 06:00 | HU | 16.60 | -104.80 | 65 | 993 | |
| 2017-06-26 12:00 | HU | 17.10 | -105.80 | 85 | 978 | |
| 2017-06-26 18:00 | HU | 17.60 | -106.80 | 90 | 974 | |
| 2017-06-27 00:00 | HU | 18.10 | -107.80 | 85 | 977 | |
| 2017-06-27 06:00 | HU | 18.60 | -108.70 | 75 | 984 | |
| 2017-06-27 12:00 | HU | 19.00 | -109.70 | 65 | 990 | |
| 2017-06-27 18:00 | TS | 19.30 | -110.70 | 55 | 995 | |
| 2017-06-28 00:00 | TS | 19.50 | -111.70 | 45 | 1000 | |
| 2017-06-28 06:00 | LO | 19.70 | -112.60 | 35 | 1005 | |
| 2017-06-28 12:00 | LO | 19.90 | -113.50 | 30 | 1007 | |
| 2017-06-28 18:00 | LO | 20.10 | -114.40 | 25 | 1007 | |
| 2017-06-29 00:00 | LO | 20.40 | -115.30 | 25 | 1007 | |
| 2017-06-29 06:00 | LO | 20.70 | -116.00 | 20 | 1008 | |
| 2017-06-29 12:00 | LO | 21.00 | -116.60 | 20 | 1008 | |
| 2017-06-29 18:00 | LO | 21.40 | -117.10 | 20 | 1008 | |
| 2017-06-30 00:00 | LO | 21.40 | -117.40 | 15 | 1009 | |
| 2017-06-30 06:00 | LO | 21.30 | -117.50 | 15 | 1009 | |
| 2017-06-30 12:00 | LO | 21.10 | -117.60 | 15 | 1009 | |
| 2017-06-30 18:00 | LO | 20.60 | -117.60 | 15 | 1010 | |
| 2017-07-01 00:00 | LO | 19.90 | -117.80 | 15 | 1010 |
Source: NOAA National Hurricane Center HURDAT2 best-track database (nhc.noaa.gov/data). Data is in the public domain. Best-track positions and intensities are post-storm reanalysis estimates and may differ from real-time advisories.