Sealion – M0ICR – Radio and Electronics

SITUATION REPORT

GHQ HOME FORCES0600Z 14 AUG 40

Reconnaissance aircraft report unusual concentration of Kriegsmarine vessels in Calais and Boulogne. Intelligence suggests German embarkation exercises continuing at accelerated pace. Cross-Channel invasion threat assessed as HIGH within 30 days.

Southern Command reports coastal defences at 62% readiness. Minelaying operations proceeding on schedule. Home Guard stood to in Kent and Sussex.

INTELLIGENCE SUMMARY

SOURCE: ULTRA / HUMINT / RECCE UPDATED: 14 AUG 40

CONFIRMED Luftwaffe intensifying attacks on RAF sector stations. Eagle Day operations underway.

PROBABLE German 16th Army designated primary invasion force. Embarkation areas identified Pas-de-Calais.

UNCONFIRMED Parachute units massing near Belgian airfields.

METEOROLOGICAL REPORT

CHANNEL SEA STATE3 — SLIGHT

VISIBILITYMODERATE

WINDSW 12 KTS

TIDE STATEFLOODING

BARGE NAVIGATIONPOSSIBLE

RAF FLYINGPOSSIBLE

INVASION WINDOW POSSIBLE

CONSECUTIVE GO TURNS

Germans need 6+ consecutive GO turns to launch

Moderate conditions. Some wave action on beaches. Invasion possible but not ideal.

WAR DIARY

14 AUG 1940 · 0600 Simulation commenced. GHQ Home Forces at readiness. Coastal defences being strengthened.

SOUTH-EAST ENGLAND OPERATIONAL AREA © OPENSTREETMAP CONTRIBUTORS

PRE-INVASION PHASE

FORCE KEY

BRITISH

INFInfantry

ARMArmour

ARTYArtillery

HGHome Guard

RAFRAF Station

GERMAN

INFInfantry Div.

PZPanzer Div.

KMKriegsmarine