The Northern Hawks joined the
Thunder Bay Junior B/Juvenile/AAA League in the fall of 1999 playing out of Norwest Arena. The team lost in the Juvenile AAA final to the
Thunder Bay Wolves that first season. The 2000-01 season saw the Northern Hawks win the Juvenile AAA Championship and move onto the
Ontario Hockey Federation Juvenile AAA championship in Newmarket, Ontario. The Northern Hawks would capture a silver medal at the OHF event, one of Thunder Bay's strongest showings ever. With the creation of the
Superior International Junior Hockey League (SIJHL), the Northern Hawks moved up to Junior B for the 2001-02 season. The Northern Hawks were
Brewers Cup champions in 2003. They won the Junior C tournament in 2003 against comparable teams from across Western Canada, defeating the
Airdrie Thunder for the gold medal. In 2004 the Hawks won their first
Thunder Bay Junior B Hockey League championship and would capture the
William Ryan Trophy (Northern Ontario Regional Junior B Hockey Championship) to advance to the
Keystone Cup.
2003-04 The Thunder Bay Northern Hawks finished off the 2003-04 season with one of the best records in Thunder Bay junior hockey history, finishing an undefeated season at 22-0-2. They went on to win the 2004 playoff championship as well defeating the
Wawa Travellers of the
North of Superior Junior B Hockey League to win the
Northern Ontario Regional Junior B Hockey Championship and earn the right to compete for the
Keystone Cup. The 2004 Keystone Cup was hosted by the
Aguasabon River Rats of the North of Superior League and
Schreiber, Ontario. In the first game, the Northern Hawks throttled Aguasabon 9-3. In the second game, the Hawks tied the
Regina Capitals 4-4. Next, the Hawks lost to the
Norway House North Stars 6-4, but returned the next game with a 3-1 win over the
Red Deer Vipers. The fifth game of the round robin for the Northern Hawks was against the
Richmond Sockeyes. Needing a victory to play for the gold medal, the game resulted in a tie. The Northern Hawks faced Red Deer again in their tournament finale, this time for the tournament's bronze medal. The Thunder Bay Northern Hawks lost the game 7-5. From this loss to the end of the 2008 Keystone Cup, no TBJBHL team won a game at the Keystone Cup tournament.
2004-05 The Northern Hawks finished second overall in the 2004-05 season to the
Aguasabon River Rats. The River Rats defected from the folding North of Superior League. In the league semifinal, the Northern Hawks defeated the
Nipigon Elks 3-games-to-1. This set up a final between the Hawks and River Rats. The Northern Hawks defeated the River Rats 4-games-to-1 to win the league championship. With no other leagues in the region, the Northern Hawks were crowned Northern Ontario Jr. B champions and went on to the 2005
Keystone Cup in
Medicine Hat, Alberta. At the tournament, the first game for the Northern Hawks was a 4-1 loss to the
Selkirk Fishermen. Next, the Hawks lost 8-5 to the
Medicine Hat Cubs. In the third game, the Hawks were defeated by the
Osoyoos Storm 6-2. After that, the Northern Hawks lost to both the
Calgary Stampeders and the
Saskatoon Royals to close out their tournament winless.
2008-09 The Northern Hawks finished the 2008-09 season in second place in the Thunder Bay Junior B league. With a 14-15-1 record, the Northern Hawks had to begin the 2009 playoffs with a semifinal series against the
Nip-Rock Elks, sweeping the series in three games. In the league final, the Northern Hawks were swept in four-straight games by the K&A Wolverines. Because the Wolverines were hosting the
Keystone Cup in 2009, the Northern Hawks earned a spot as the
Hockey Northwestern Ontario branch representative. At the
Keystone Cup, the Hawks faced the Wolverines in the opening game, losing 6-1. Later that night, the Northern Hawks lost 5-2 to the
Prairie Junior Hockey League's
Saskatoon Royals. The next day, the Northern Hawks lost to the
Keystone Junior Hockey League's
St. Malo Warriors 6-2. On the third day, the Northern Hawks lost 6-1 to the
North Eastern Alberta Junior B Hockey League's Lloydminster Bandits, which eliminated them from medal contention. In the final round robin game, the Hawks lost 4-2 to the
Pacific International Junior Hockey League's
Richmond Sockeyes, who would eventually win the
Keystone Cup in double overtime over the K&A Wolverines.
2011-12 The Northern Hawks finished first in the league with a 30-2-0 record. They blasted the Schreiber Falcons 3-games-to-none in a lopsided semifinal and then defeated the
Nipigon Elks 4-games-to-1 to win the Thunder Bay championship in a hard-fought series. The Northern Hawks shipped out to
Saskatoon, Saskatchewan for the 2012
Keystone Cup. Despite leading 3-1 at one point, the Northern Hawks lost their first game to the
Abbotsford Pilots of the
Pacific International Junior Hockey League 7-4. The Northern Hawks then went on a tear, defeating the host
Saskatoon Royals 6-3,
Keystone Junior Hockey League's
Arborg Ice Dawgs 7-5,
North West Junior Hockey League's
Whitecourt Wolverines 7-4, and the
Prairie Junior Hockey League's
Pilot Butte Storm 3-1 to earn a berth into the gold medal game with a 4-1-0 record. After four hard-fought victories, the Northern Hawks fell to the Pilots in the gold medal game 9-1. The Northern Hawks' silver medal is the league's second in four seasons after failing to medal from 2000 until the Wolverines won silver in 2009.
2013-14 The Northern Hawks finished first in the league again with only one regular season loss and one playoff loss. They took out the Schreiber Falcons 4-games-to-none in the semifinals. They then went on to demolish the Stars in the finals, 4-games-to-1, earning a berth into the Keystone Cup in Abbotsford BC. Opening the tournament with a win over Manitoba branch champion,
Selkirk Fishermen 2-1, the Hawks next defeated the
Saskatoon Quakers 4-3. The Hawks would fall to the
Abbotsford Pilots,
Beaver Valley Nite Hawks, and
Blackfalds Wranglers in the round robin. Finishing fourth the Hawks earned a spot into the bronze medal game, where they came up short and lost 4-3, ending the tournament in 4th place.
2014-15 Winning their sixth-straight TBJBHL championship with a record of 28-1-1, the Northern Hawks swept the Schreiber Falcons and Thunder Bay North Stars in four games each series. At the Keystone Cup, Thunder Bay would go 2-2-1 in round robin play to earn their spot in the Bronze Medal Game. In a goal-filled game the Northern Hawks would fall to the Saskatoon Quakers 5-4 to finish in fourth place at the Western Canada Junior B championship. ==Season-by-season standings==