# Offline data storage during internet outages **URL:** \ **Category:** Tempest Owners\ **Tags:** hub\ **Created:** [March 10, 2018, 12:13am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538 "2018-03-10T00:13:16Z")\ **Posts on this page:** 11\ **Page:** 3
**Author:** ![vreihen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/vreihen/32/13217_2.png) [@vreihen](https://community.tempest.earth/u/vreihen)\ **Post date:** [October 3, 2018, 6:21pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/41 "2018-10-03T18:21:37Z")
It should send the buffered obs\_air and obs\_sky packets from those sensors when the Hub comes back up, but does not replay rapid\_wind… ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [October 3, 2018, 7:52pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/42 "2018-10-03T19:52:42Z")
Then I will wait for that option. No need to waste WeatherFlow resources on a one use fix. ---
**Author:** ![dsj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsj/32/3_2.png) [@dsj](https://community.tempest.earth/u/dsj)\ **Post date:** [October 3, 2018, 9:06pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/43 "2018-10-03T21:06:28Z")
No worries. The case of running with neither internet nor BLE-connected app is something we want to support in general, even if @GaryFunk is the only one using it! ---
**Author:** ![luukveltkamp](https://avatars.discourse-cdn.com/v4/letter/l/e47774/32.png) [@luukveltkamp](https://community.tempest.earth/u/luukveltkamp)\ **Post date:** [October 3, 2018, 9:21pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/44 "2018-10-03T21:21:00Z")
My backfill issue has been solved and every morning the nights data populates beautifully!! Unfortunately the sky has stopped talking to the hub and has gone quite, battery state was good, need to fly down and see what’s going on! ---
**Author:** ![bpaauwe](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/bpaauwe/32/1056_2.png) [@bpaauwe](https://community.tempest.earth/u/bpaauwe)\ **Post date:** [October 4, 2018, 12:03am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/45 "2018-10-04T00:03:13Z")
> [@dsj](#): > > No worries. The case of running with neither internet nor BLE-connected app is something we want to support in general, even if @GaryFunk is the only one using it! Gary won’t be the only one. I have a kit still in the box waiting to take to our cabin and install there, where we have no cell service and no internet. ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [October 4, 2018, 1:51am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/46 "2018-10-04T01:51:59Z")
Stop showing love for me in public. People will think good about me… ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [October 4, 2018, 1:54am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/47 "2018-10-04T01:54:19Z")
David (and others) are slowly leaning that many of us actually are prepared to keep running without Internet. ---
**Author:** ![vreihen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/vreihen/32/13217_2.png) [@vreihen](https://community.tempest.earth/u/vreihen)\ **Post date:** [October 4, 2018, 11:15am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/48 "2018-10-04T11:15:46Z")
> [@GaryFunk](#): > > Stop showing love for me in public. People will think good about me… We all certainly know who is David’s favorite this week! 😉 Some day, I’d like to see the Hub act like a Davis logger over BLE. There’s a lot of benefits to having it store data for download instead of requiring a 24/7 connection… ---
**Author:** ![louis](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/louis/32/9886_2.png) [@louis](https://community.tempest.earth/u/louis)\ **Post date:** [September 22, 2020, 4:02pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/49 "2020-09-22T16:02:33Z")
Hi, what is the offline data storage durations for both the Tempest device and the Hub? ---
**Author:** ![eric](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/eric/32/13553_2.png) [@eric](https://community.tempest.earth/u/eric)\ **Post date:** [September 22, 2020, 4:10pm UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/50 "2020-09-22T16:10:54Z")
basic answer > [@Offline data storage during internet outages](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/6): > > Actually, the field test Hubs (which @GaryFunk has) do not store data because they were not built with external flash. The production Hubs, however, do have external flash. So, both the end device (AIR & SKY) and the the Hub will store data when necessary in a first-in, first-out buffer. The AIR & SKY will store several hours of data if the Hub is without power or out of range. And the Hub will store several weeks of data if the Internet connection is down. Once the connection is restored, the … And to add the tempest, it can hold +/- 2 hours of data without a radio link to the hub. ---
**Author:** ![iladyman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/iladyman/32/2305_2.png) [@iladyman](https://community.tempest.earth/u/iladyman)\ **Post date:** [December 18, 2020, 4:23am UTC](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/51 "2020-12-18T04:23:03Z")
Hi @tony.mcgee, This is why I did not report this rain event… Yesterday I had a power outage of less than a couple of hours during a strong thunderstorm that dropped 2" rain. It took out my hubs and my internet during that period. From what I worked out the power went off at 3:39pm and was restored at 5:15pm. So about 1hr 36min. I have waited 24hrs for the data to backfill and it has not filled the entire gap in the rain records which I need to send in my report. What I notice is that some sensor fields are filled while other sensors are empty and some filled a portion in the middle. I have some Skys, an air and a Tempest. The Tempest lightning records filled up. ![Screen Shot 2020-12-18 at 2.44.09 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/f/f53db6bb476c1d931288c73b2918691cff8d59c1.png) but the tempest rain and all the other sensors did not (The rain continued extreme during the gap) ![Screen Shot 2020-12-18 at 2.45.48 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/4/4d80f2155e7410b7a990ad52a87492f179aa58f1.png) But the wind on the Tempest filled some of the gap leaving a gap each side of the fill: ![Screen Shot 2020-12-18 at 3.02.53 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/a/aa06d60ceafabe7bea6342b0613660fd888517c3.png) A Sky on a hub with nothing else connected only lost 11 minutes of records from all its sensors: ![Screen Shot 2020-12-18 at 2.49.33 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/f/f138132ce8081859f8eb8db741d48630036d5691.png) A hub with 3 skys and an air all roughly lost 8 minutes of rain and wind ![Screen Shot 2020-12-18 at 2.53.56 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/d/d24b2497806692441976ae1d27c69d8c7a94a7ad.png) ![Screen Shot 2020-12-18 at 3.09.32 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/1/18f67c73b58e0ede8cc1a48018395c22f7dac714.png) The air filled its temp and pressure ok but lost all lightning during the outage ![Screen Shot 2020-12-18 at 3.11.53 PM](https://us1.discourse-cdn.com/flex020/uploads/sws/original/2X/e/e703e9445221bc46abd817b4db1ed0501ae1869b.png) If anyone wants to look deeper my stations are: [Tempest](https://tempestwx.com/station/4555/grid) (firmware 143 for Sky and Air) [Tempest](https://tempestwx.com/station/27109/grid) (hub firmware 146 interim testing, Tempest 142) [Tempest](https://tempestwx.com/station/28006/grid) ((firmware 143 for Sky) I do not need the gaps filled. I am simply reporting it for others to learn from if you are curious. It would be easy to do the same experiment by voluntarily turning the power off the hubs. cheers Ian 🙂 [Previous page](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538.md?page=2)