what is this
PressureWatch texts you the evening before barometric pressure is forecast to shift significantly in your zip code. That's it. No app. No subscription. No account. Just a text when it matters.
If you get weather-related migraines or just feel off when the weather changes, you already know the pattern. The headache that shows up out of nowhere. The heavy feeling you can't explain. Now you'll have a heads up.
01.You give us your zip code and phone number
02.We check tomorrow's forecast every evening
03.If pressure is shifting — up or down — PressureWatch texts you
04.Reply STOP anytime. No questions asked.
sign up — it's free
what each sensitivity level means
somewhat sensitive
~2–4 texts/month · big shifts only
Major pressure events — approaching storms, significant fronts. The kind of day most people would notice regardless.
if dropping ↓
"Significant pressure drop tomorrow — one of the bigger ones this season. — PressureWatch"
if rising ↑
"Significant pressure rise tomorrow — one of the bigger ones this season. — PressureWatch"
very sensitive
~4–6 texts/month · moderate shifts
Meaningful pressure moves that weather-sensitive people reliably feel but the average person might not notice.
if dropping ↓
"Pressure dropping noticeably tomorrow. Worth planning for. — PressureWatch"
if rising ↑
"Pressure rising noticeably tomorrow. Worth planning for. — PressureWatch"
extremely sensitive
~6–10 texts/month · small shifts
Catches smaller but still real pressure changes. For people who feel almost every shift.
if dropping ↓
"Minor pressure drop tomorrow — flagging since you're on high sensitivity. — PressureWatch"
if rising ↑
"Minor pressure rise tomorrow — flagging since you're on high sensitivity. — PressureWatch"
Not sure which to pick? Start with "somewhat sensitive" — you can always change it by replying SENSITIVITY to any text.
The estimates above are based on typical US weather patterns. How often you actually hear from us depends entirely on what the atmosphere does — some months are busier than others, and some climates are naturally more stable. We'll only text you when there's something real to report.
coming soon
Some people only feel drops. Others only feel rises. We're working on letting you choose which direction triggers your alerts — or both. We'll text you when it's ready.
the research
A lot of people feel weather changes in their bodies before they show up on a forecast. Here's what the science says — and what it doesn't.
In a year-long study of migraine patients, weather change was associated with headache development in 64% of participants, with low barometric pressure cited as a contributing factor.
Kimoto et al. (2011). Internal Medicine. pubmed.ncbi.nlm.nih.gov/21921370
A 2025 systematic review of 14 studies and 2,696 participants found some evidence linking barometric pressure drops and rapid fluctuations with increased migraine frequency, though associations with severity remain inconsistent.
Systematic Review (2025). Cureus. pmc.ncbi.nlm.nih.gov/articles/PMC12617017
The American Migraine Foundation reports that over a third of people with migraine say certain weather patterns trigger their headaches at least some of the time.
American Migraine Foundation. americanmigrainefoundation.org
Researchers have theorized that pressure changes may affect the physical stress on nerve endings surrounding the brain's outer membrane, potentially activating migraine pathways — though the exact mechanism needs further study.
Association of Migraine Disorders. migrainedisorders.org/podcast/s6ep9-weather-barometric-pressure
This information is provided for general interest only and does not constitute medical advice. PressureWatch is not a medical service. If you experience headaches or other symptoms, please consult a qualified healthcare professional.