December 7 Night – December 8 Evening
Japanese Forces
Japanese striking Force
1030 hours 180 miles NNW Oahu (150 NM due north Kaui) (final recovery position)
speed 24 knots for 12 hours (2230 hours) 120 NM west
course change N 27 knots (2230 hours – 0830 hours) puts them 500 miles north of Nihoa Island, meets with supply group 2. Destroyers refuel 0900 – 1700 hours
Position is 700 miles from Oahu and 800 miles from Midway Island, just out of air search range for both. After refueling, the Zuikaku, 3 destroyers, 5 fleet oilers (from supply group 1) all head for Japan at 12 knots (reaching Japan on December 21). Remainder of the Striking Force steams toward Midway beginning 1700 hours December 8 at 21 knots, which will put them strike range of Midway Island on the afternoon of December 9, and the bombardment force can reach the island after dark.
Midway Invasion Force and Supply Group 3 is 600 miles west of Midway Island heading due east heading directly for Midway as of dusk on December 8. This fleet accelerates to its best speed of 15 knots just after dark, which will place them off Midway the morning of December 10.
Meanwhile
American Forces
Scouting Force completes refueling 200 miles south Laysan Island until 1350 hours December 7. Turns east and runs at 18 knots until 0700 hours December 8 to meet with TF 15 (2 CL) which steams from just off Pearl Harbor at 31 knots from 1100 hours December 7 until 0700 hours December 8 where it joins Yorktown task force. At that point the Scouting Force has no idea where the enemy is as it waits for contact reports. Halsey orders the fleet to steam north in 3 task forces, each 10 miles apart, to a Point Option, at 30 degrees N, 170 degrees W. Worried that the Japanese might have slipped by air search from Midway and Pearl Harbor, he has 36 SBDs operating in pairs searching out to 200 miles, and 30 TBDs looking for submarines, which are suspected to be nearby in strength. By nightfall the American carriers have reached Point Option and there is still no report regarding the Japanese.
Air search from Midway looks Northeast, North and Northwest out 500 miles, does not spot enemy, nor does the air search from Oahu, which is also patrolling out 500 miles.
However, American destroyers and destroyer minesweepers along with float planes and B18s are searching off the coast of Oahu for enemy submarines. They find two of them, sinking the I-3 and the I-70 near Oahu.
Task Force 1 loads up reinforcements for Midway in Pearl Harbor with orders to head to Midway on the morning of December 9.
The Saratoga is loading its airgroup off San Diego along with 6 destroyers and 2 fleet oilers. In addition, it is loading a Marine Corps bombing squadron with orders to steam to Pearl Harbor on December 10. A Warning Order is issued for several patrol squadrons on the West Coast to prepare for deployment to Hawaii.
The Louisville and Pensacola convoys are diverted to Brisbane, Australia pending further decisions. In Washington DC, the Navy Department and President Roosevelt are suddenly looking for a new commander of the Pacific Fleet and several names are discussed. Overnight reports reach Pearl Harbor of heavy losses suffered by the USAAF Far East, attacks on Guam, a disastrous air raid on Wake Island, Japanese attacks on Shanghai, Hong Kong, and Malaya. The US Navy issues instructions to conduct unrestricted submarine warfare on Japan.