Topic: 196 mm rain rate on 1001 wifi

[HassanMohi]

Hey guys !
today my ambient recorded 196 mm rain rate per hr for a short period. I wonder anyone else ever recorded such rate on their 1001 wifi. Sharing picture of the rate.

[Jáchym]

Yes, if there was a really strong downburst, this can happen for a very short period of time. Remember this is basically instantaneous value. It would be very unlikely that it would rain 200mm in an hour, but if you had for example 6mm in the 2 minutes of the most intense rain, that can happen and during that time, the instantanous rate would correspond to such high number.

[HassanMohi]

yes it was for a short period of about. 5 mins or so

[Jáchym]

Then it is possible.

The only problem is that such rate is realistic, but question is how accurately your station can measure this.
I am not sure about your station, but consider a station with a tipping bucket with a capacity of 0.1mm (which is quite common).
Then, in those 5 minutes you would have approximately 16mm of rain. That means that in 5 minutes, the tipping bucket had to tip 160 times. Now that is getting close to 1 tip per second and that will be very inaccurate, it could also be that if the rain rate is even higher, the tipping bucket simply does not have time to tip and water is spilled, so it could even underestimate the rate.

Just out of curiosity

The world record for 1-minute rain is 38mm (1.5in) measured in 1970 in Barot, Guadeloupe. If you convert this to rain rate per hour, you will get a staggering 2280mm/h (89 in/h), so your 192 in this respect seems like nothing

[HassanMohi]

Please take a look. What you think

[HassanMohi]

V informative thanks a lot

[Jáchym]

90mm/h... that must have been a really intense rain, though it is not unrealistic

[Jáchym]

where do you live? where was this measured?

I know that on one of our stations here in Czech Republic we recently had over 80mm in 20 minutes But that is very rare

[HassanMohi]

Islamabad Pakistan - we are under monsoon season these days

[Jáchym]

Aha... makes sense then

[weatherc]

I would say 100-200 mm/h rates are just normal and common, i see such many times per year even up here north during thunderstorms.
Just as example. my Davis knocked a rate of 440 mm/h just some weeks ago, and yep, it REALLY rained for a moment then. 

[Jáchym]

I would say 100-200 mm/h rates are just normal and common, i see such many times per year even up here north during thunderstorms.
Just as example. my Davis knocked a rate of 440 mm/h just some weeks ago, and yep, it REALLY rained for a moment then. 

And now imagine it rained 5 times more intensively back in 1970 in Guadeloupe

[weatherc]

And now imagine it rained 5 times more intensively back in 1970 in Guadeloupe

Yep...Where are the submarine?

[Jáchym]

I can imagine it must have been like a true "water wall"

[HassanMohi]

I was watching a research video where it was mentioned that atmospheric compression events are increasing day by day giving river of water from the sky

[Jáchym]

Some of this is unbelievable, just think about it... like 70mm/h for 48h straight

Most in one minute: 38 mm (1.5 in); Barot, Guadeloupe, 26 November 1970.
Most in one hour: 305 mm (12.0 in) in 42 minutes. Holt, Missouri, United States, 22 June 1947.
Most in 12 hours (1/2 day): 1,144 mm (45.0 in); Cilaos, Réunion, 8 January 1966, during tropical cyclone Denise.
Most in 24 hours (1 day): 1,825 mm (71.9 in); Cilaos, Réunion, 7–8 January 1966, during tropical cyclone Denise.
Most in 48 hours (2 days): 2,493 mm (98.1 in); Cherrapunji, Meghalaya, India, 15–16 June 1995
Most in 72 hours (3 days): 3,929 mm (154.7 in); Commerson, Réunion, 24–26 February 2007
Most in 96 hours (4 days): 4,869 mm (191.7 in); Commerson, Réunion, 24–27 February 2007
Most in one year: 26,470 mm (1,042 in); Cherrapunji, Meghalaya, India, 1860–1861.[52]
Highest average annual total (observed over 10 years): 11,872 mm (467.4 in); Mawsynram, Meghalaya, India