Does Tattershall flood?

What the Environment Agency's rivers-and-sea flood-risk data says about Tattershall

Ordnance Survey places 34 postcodes in Tattershall in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 1,745 properties in the EA dataset's likelihood bands.

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Tattershall

Environment Agency gauges within 10 km of Tattershall watch River Witham, West Fen Catchwater Drain, River Bain, Billinghay Skirth.

• Chapel Hill Tidal
  River Witham · 4.0 km away 1.01 m
  rises and falls with the tide · 27 min ago
• New York
  West Fen Catchwater Drain · 4.3 km away 0.84 m
  normal range · steady · 27 min ago
• Kirkby On Bain
  River Bain · 5.3 km away 0.08 m
  normal range · steady · 27 min ago
• Kirkstead Bridge
  River Witham · 5.4 km away 0.74 m
  normal range · steady · 27 min ago
• Billinghay
  Billinghay Skirth · 6.5 km away 0.45 m
  normal range · steady · 27 min ago
• Revesby
  West Fen Catchwater Drain · 9.4 km away 0.96 m
  normal range · steady · 27 min ago

Distances are from the middle of Tattershall's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

Flood warning areas near Tattershall

19 Environment Agency flood warning areas lie within 10 km of Tattershall. The EA has issued 143 flood warnings and alerts for them since 2006, most recently on 4 Mar 2026.

• Areas near the River Witham and River Bain in Coningsby, Tattershall and Dogdyke
  1 warning or alert since 2006, latest Oct 2023 1.1 km
• Breach risk on the River Witham and River Bain between Woodhall Spa to Tattershall
  no warning on record since 2006 1.5 km
• Area from Woodhall Spa to Tattershall bridge and Tattershall
  2 warnings and alerts since 2006, latest Mar 2026 2.3 km
• Lower River Witham from Lincoln to Boston. Tributaries may also affect Woodhall Spa, Coningsby, South Kyme, and Bardney
  42 warnings and alerts since 2006, latest Mar 2026 3.3 km
• Properties at risk from the River Witham including Timberland Delph, Car Dyke, and Billinghay Skirth
  2 warnings and alerts since 2006, latest Mar 2026 5.0 km
• Areas along the River Bain near Haltham and Kirkby on Bain
  5 warnings and alerts since 2006, latest Jan 2025 5.7 km
• Breach risk on the River Witham and Duckpool Catchwater in areas between Stixwould and Woodhall Spa
  no warning on record since 2006 5.9 km
• Area between Anwick, North Kyme, South Kyme, Tattershall Bridge and Chapel Hill
  no warning on record since 2006 6.9 km
• Areas along Haltham Beck from Main Road and Wood Enderby Lane in Haltham to Wood Enderby
  no warning on record since 2006 7.2 km
• Properties at risk of breach to low lying land between Timberland and Billinghay
  no warning on record since 2006 7.4 km
• River Witham and Duckpool Catchwater area from Stixwould to Woodhall Spa
  2 warnings and alerts since 2006, latest Mar 2026 7.6 km
• Areas near the East and West Fen Catchwater Drains and the Maud Foster Drain
  3 warnings and alerts since 2006, latest Oct 2023 7.7 km

Recorded floods near Tattershall

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Tattershall, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

• 2 Jan 2024 — LNA_2024_01_Fluvial_Lower River Bain Main river
• 2 Jan 2024 — LNA_2024_01_Fluvial_Lower River Witham Ordinary watercourse
• 20 Oct 2023 — LNA_2023_10_Fluvial_Lower River Bain Main river
• 20 Oct 2023 — LNA_2023_10_Fluvial_Billinghay Skirth Main river
• 20 Oct 2023 — LNA_2023_10_Fluvial_Lower River Witham Ordinary watercourse
• 14 Nov 2019 — LNA_2019_11_Timberland Delph Main river
• 11 Jun 2019 — LNA_2019_06_Horncastle Canal Main river
• 5 Dec 2013 — LNA_2013_12_Tidal_Witham_Haven Sea
• 26 Apr 1981 — LNA_1981_04_Horncastle Canal Main river
• 31 Jan 1953 — LNA_1953_01_Lincolnshire Coastline Other

Rainfall near Tattershall

Tattershall gets about 599 mm of rain a year on average (wettest month October, 60 mm; driest March, 35 mm). That is 48% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.4 km from the place centre.

The nearest rain gauge, Rainfall station (1.7 km away), recorded 0.5 mm in the last 24 hours and 2.7 mm in the last 7 days (latest reading 57 min ago).

At-risk postcodes in Tattershall

Every postcode Ordnance Survey places in Tattershall that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (21)

Medium likelihood (1)

Low likelihood (12)

Postcode districts

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.