| Text | Length |
| Watchful and ready | 18 |
| Ready for trouble | 17 |
| On top of things | 16 |
| Notify of danger | 16 |
| Awake and aware | 15 |
| With it, in a sense | 19 |
| Trouble indicator | 17 |
| This might be red | 17 |
| Primed for action | 17 |
| On your toes | 12 |
| It may be red | 13 |
| Advance warning | 15 |
| Warning notice | 14 |
| Like good watchmen | 18 |
| Like a good lookout | 19 |
| Like a good guard | 17 |
| Keenly attentive | 16 |
| Having pricked ears | 19 |
| Danger signal, e.g. | 19 |
| Blow the horn at | 16 |
| Word with red or on | 19 |
| Whistle, maybe | 14 |
| Whistle, for one | 16 |
| Wake-up call, say | 17 |
| Tour heads-up | 13 |
| Totally awake | 13 |
| Taking it all in | 16 |
| Storm posting, e.g. | 19 |
| Siren warning | 13 |
| Show heads-up | 13 |
| Send a heads-up to | 18 |
| Red follower | 12 |
| Red flag, e.g. | 14 |
| Ready for whatever | 18 |
| Ready for shows | 15 |
| Readiness condition | 19 |
| Raid warning | 12 |
| Put on the ready | 16 |
| On the ready | 12 |
| Offer a heads-up | 16 |
| Not foggy-headed | 16 |
| Not easy to fool | 16 |
| Not easily fooled | 17 |
| Not caught napping | 18 |
| Like good guards | 16 |
| Like a watchdog | 15 |
| Like a guard dog | 16 |
| Inform, in a way | 16 |
| Full of NoDoz | 13 |
| Flag down, say | 14 |
| Fit for guard duty | 18 |
| Early warning | 13 |
| Danger notice | 13 |
| Cell phone beep | 15 |
| Caffeinated? | 12 |
| Bushy-tailed? | 13 |
| APB, for one | 12 |
| Antarctic base | 14 |
| All points bulletin | 19 |
| Air-raid signal | 15 |
| Gave a warning | 14 |
| Sounded the alarm | 17 |
| Gave a heads-up to | 18 |
| Gave a heads-up | 15 |
| Sent signals to | 15 |
| Put on the qui vive | 19 |
| Made aware of | 13 |
| More watchful | 13 |
| More attentive | 14 |
| Revere, once | 12 |
| More vigilant | 13 |
| More observant | 14 |
| Most wide-awake | 15 |
| Best way to drive | 17 |
| With vigilance | 14 |
| With awareness | 14 |
| In a wary way | 13 |
| With attentiveness | 18 |
| In nimble fashion | 17 |
| Computer reminders | 18 |
| Warning signs | 13 |
| Prepares for action | 19 |
| Puts on notice | 14 |
| Puts on guard | 13 |
| Gives a heads-up to | 19 |
| They may be red | 15 |
| These may be red | 16 |
| Security concerns | 17 |
| Google service | 14 |
| Critical warnings | 17 |
| Warning notices | 15 |
| Sounds the alarm | 16 |
| Some text messages | 18 |
| News notices | 12 |
| Mobilizing events | 17 |
| Gives a heads-up | 16 |
| Gives a heads up | 16 |
| Air-raid warnings | 17 |
| Trading updates | 15 |
| Storm sirens | 12 |
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