Actually yes. In that alternate reality they developed the atomic bomb years before the US got close and their bombing of Pearl Harbor destroyed the entire US west coast fleet including the Pacific Carriers based there. The Germans had completed their clean sweep of the Allies by 1942 and turned their sights to their allies in Italy and Japan who quickly capitulated rather than be destroyed. Dean Womer is a distant relative of Hitler's thrown a bone when offered the Faber job after he was cashiered out of the German army due to gross negligence. Little did the Reich leadership realize that his mismanagement of Faber would start the second American Revolution and lead to the eventual downfall of the Third Reich.
Okay.. I get the battleships and cruisers being completely wiped out in a nuclear attack on Pearl Harbor, but how would the carriers have been destroyed? The Lexington and her support ships were on their way to Midway, the Enterprise and her support ships were delayed by bad weather on their way back from Wake, and the Saratoga and her support ships were in San Diego..
Read the book. Disappointing. Could not bring myself to care about any of the characters. The alternate timeline was interesting, but the story itself just kind of felt like it got to a point and Dick said, "...and, that's the end."
That's far too many variables having to come together for an effective alternate history though.. I can see the Lexington having issues that kept her in port, but in order for the Enterprise to get back to Pearl Harbor on December 6th, Halsey would have had to ordered her to maintain speed and power through the storm, which wasn't protocol in non-wartime.. That also doesn't account for the Yorktown, Wasp, Ranger, and Hornet, which were in the Atlantic Fleet at the time, but scattered up and down the coast. There's also the 5 Essex class carriers that were under construction, but they were all at Newport News, VA and Quincy, MA, so could have been taken out by a nuke at each of those locations..
Ever read any of Harry Turtledove's stuff? His Guns of the South standalone is a great story IMO. His How Few Remain universe on the other hand got out of hand IMO.
Digression: how are a news director and a sperm alike? Both have a one-in-million shot at becoming a human being.
When the author forces a pattern onto a 'new' timeline, it's jarring. For TL-191, it's all about imposing European history into an American setting, even when it's not logical. Static trench warfare, for example, required heavy density, so it didn't happen much in Eastern Europe during the Great War. A thousand-mile front doesn't have that kind of front. And the frequent date-by-date substitutions for events make it heavyhanded.