What's the most extreme weather measurement you've recorded?

[J-W-P]

Been playing with my new system over the past month looking at the data I've collected.  I haven't seen anything yet that is out of the ordinary for this winter.
But I'm wondering - since you've been collecting, what are some of the extreme measurements you've seen using your weather systems?  
Outdoor temp highs and lows, wind speed, rain fall, rain rate?

[Farmtalk]

I looked at data when I was 10 and my record hig was 93.0, which we hit twice.

Last year, we would have broken that once a week with our blistering hot summer.

I didnt get my new thermometer until Christmas.

[Downlinerz2]

   A quick look at my data shows the following.
     
      Lowest temp:  -2F      21 Dec  2008
      Highest temp:  96F     25 June 2009  and  23 July 2010
      Lowest SL Pressure:  29.00   (982.05 mb)   9 Dec 2009
      Highest SL Pressure:  30.59   (1035.9 mb)  16 Dec 2008
      Highest Heat Index:  110F  23 July 2010
      Highest Wind speed:  46mph  3 April 2010
      Rain:   2.04"  24-hr period 8:00am 7 April 2010 - 8:00am 8 April 2010 (CoCoRaSH)   
                 1.87"  24-hr period 8:00am 5 June 2010 - 8:00am 6 June 2010       "
                 1.60"  24-hr period 8:00am 16 Sept 2010 - 8:00am 17 Sept 2010  "
       Mark

[KeithBC]

When I lived in Calgary, I recorded some wild chinooks and arctic fronts.  Extreme temperature variations are common there.

I didn't really keep detailed daily records then, so finding examples now would be difficult even if I still had the records.  I came across a temperature recording of one chinook where the temperature rose 10 degrees Celsius in less than 10 minutes (Jan 19th, 2005).  I've seen them more extreme than that: 15-20 degrees in 15-20 minutes.

I recorded one arctic front where the temperature dropped 20 degrees C pretty much instantaneously.  A friend who was at home at the time saw the front coming over the hill and was watching his thermometer as it hit.  He said he could watch the fluid dropping.  The temperature change was so extreme that I could see the cold air shimmer as it mixed with the warmer air as it came around the corners of the buildings.

Since I have been recording rainfall, my maximum catch rate has been about 22 mm/hr.  Most in one day: about 97 mm.

[DougW]

My records in Southern Oklahoma since 2006:

[floodcaster]

From my station...
Note: record daily rain was from manual rain gauge.

[PaulMy]

Here are our records over the past 30 months but does not include snow or snow-water equivalent...

 Latitude N 42° 57' 15"    Longitude W 81° 26' 06"    Elevation 244 m
Records began on 25 July 2008. Here are the extremes recorded since then.

Temperature and Humidity  
Highest Temperature 35.2 °C at 3:41 PM on 07 July 2010
Lowest Temperature  -26.2 °C at 7:30 AM on 05 February 2009
Lowest Wind Chill Temperature -27.0 °C at 9:00 AM on 16 January 2009
Highest Minimum  23.2 °C on 15 August 2010
Lowest Maximum  -16.6 °C on 30 January 2010

Rainfall
Highest Rain Rate 288.0 mm/hr at 5:30 PM on 25 June 2009
Highest Hourly Rainfall 193.8 mm at 11:03 AM on 29 December 2010
Highest Daily Rainfall 193.8 mm on 29 December 2010
Highest Monthly Rainfall 205.2 mm December 2010

Wind
Highest Wind Gust 61.2 km/h at 10:00 AM on 28 December 2008
Highest Wind Speed Average 29.0 km/h at 8:00 AM on 28 December 2008

Pressure
Lowest Pressure (sl)  980.67 hPa at 12:00 PM on 09 December 2009
Highest Pressure (sl) 1039.22 hPa at 12:30 PM on 12 March 2009

Paul

[Scalphunter]

Dec. 31 2005  had dig this out for the backing of it.    198 inches of rain

Alaska town nears all-time precipitation record
KETCHIKAN, Alaska (AP) — Ketchikan is famous for liquid sunshine and rubber boots, but this year's rainfall is inching toward the record books.
Ketchikan is a small town in far southeastern Alaska.

As of early Tuesday, the Flight Service Station at Ketchikan International Airport had measured 192.95 inches of precipitation for the year. The record — at least as far as most residents are concerned — is 202.55 inches, set in 1949. That's nearly 17 feet of water.

Rain is in the forecast through New Year's Day, Sunday.

Kimberly Vaughan, a hydrometeorological technician with the National Weather Service in Juneau, said it has been wet across the region this year.

"Sitka had mudslides with heavy rain, and so did Haines," she said. "It was just a very wet winter and temperatures stayed slightly above normal. It wasn't coming down as snow."

Juneau, too, has had its share of landslides and flooding this season. In Ketchikan, a mudslide blocked a portion of the Brown Mountain Road in late September.

Ketchikan had 39 consecutive days of rain from Oct. 20 to Nov. 27, which wasn't a record. The town also had 39 consecutive days of rain in 1999 and 1977. The record was 101 consecutive days of rain, set in 1953, Vaughan said.

November was the wettest month of 2005, with 27.95 inches of precipitation, followed by October with 25.72 inches and January with 25.06 inches, according to the Flight Service Station.

The National Weather Service's website lists the annual record for the highest precipitation in Ketchikan at 190.46 inches, set in 1917, and the average annual total at 154.6 inches. The year 1949 doesn't appear on the record list. The Liquid Rain Gauge at the Ketchikan Visitors Bureau and most people in town use the 202-inch record.

The record for the most precipitation that fell in one day in Ketchikan was 8.71 inches, set on Oct. 11, 1977.

John Markle, a weather spotter who lives in Saxman, said this year's annual rainfall should be "pretty close" to the record.

"It's been pretty heavy this last month or so," he said. "I've seen where you get a half inch of rain in an hour. You just sit back and watch the old rain gauge click away."

John Kanarr, who tracks the weather on North Tongass, said it's easy to forget about the constant rain until there's a big storm.

"After a while, when you go to work and come home, you don't pay attention to the rain, unless it's a whistler, like Thanksgiving," he said. "You don't keep track of the number of days it's been going on."

Kanarr has been paying attention to the lack of snow on area mountaintops — snowpack is important for hydroelectric generation and for spawning fish, he said. But he wouldn't mind if Ketchikan hit the 200-inch mark this year.

"Some people don't like the rain, and hey, they can move to Florida and put up with the hurricanes and the typhoons or to California and put up with the smog," he said.

Ketchikan Public Utilities Electric Division Manager Jay Hansen said area snowpack has come and gone, though there's been a "phenomenal" amount of rain.

"Provided the rain comes spread out, it doesn't matter if it's rain or snow," he said.

As of Tuesday morning, precipitation at Swan Lake was 187.42 inches, compared to a 14-year average of 153.58 inches. At Ketchikan Lakes, KPU had measured 170.81 inches, compared to a 14-year average of 148.31. At Silvis Lake, the total was 254.8 inches, compared to a 14-year average of 216.55 inches.

"Right now the lakes are all full, and over last three or four years, if we're full at the first of year we've made it through OK," Hansen said. "If it got cold and stayed through March, we might not be OK."

Record or no, Kanarr sees a plus side to all the rain.

"You never have to shovel rain. That's what I tell people," he said.

It also mention other dates in article we record extreme rain if you want to call it extreme.  As john Kanarr said after a while you don't pay attention to it.


John

[dasman]

93 mph wind gust in a micro burst in on Oct. 2nd 2006.
-19.6 F on Jan. 16th 2009
-41F wind chill on Jan. 16th 2009
115.9F heat index July 23rd 2010

[C5250]

http://weather.stadhaugh.com/?page=extremes

The rain rate is probably bogus and a result of unplugging the rain gauge.

[DanS]

 (since I've been recording) May 15, 2009 

[sacreyweather]

My records are:

Highest temp:  108.9°F on 8-3-2010
Lowest temp:  12.4°F on 1-13-2011

Record High Heat Index    130.1°F on 8-1-2010

[LFWX]

Note the Maximum Wind Gust is the last measurement before the antenna mast was blown over.

[J-W-P]

Note the Maximum Wind Gust is the last measurement before the antenna mast was blown over.

Ah, the remnants of Ike.  I remember that day.  Lots of blue tarps on roofs after that one.

[LFWX]

Note the Maximum Wind Gust is the last measurement before the antenna mast was blown over.

Ah, the remnants of Ike.  I remember that day.  Lots of blue tarps on roofs after that one.

Two years later and I think most of them are finally repaired. No roof damage here, but in my sister's neighborhood (1/2 mile away) at least 50% had the "blue roofs".
A PWS closer to you (http://www.lucasweather.com/) said he measured 74mph before his power went out (back up battery was dead).

[chief-david]

If remember right-

High wind 60 mph

Low wind chill  -15F

High heat index  115F

I have had a few temp drops of 25 degrees in just a few hours.
I had a few big barometer drops too.

[zackdog]

I have had a weather station since 1994 and the extremes I have recorded are:

High Temperature  93.8° F on July 15, 2002
Low Temperature  -27.9° F on Dec. 8, 2005
High Wind Speed   51 mph on Feb. 16, 2007

Mark

[upweather]

Well not the most extreme but it was -7.1F last night 11pm then quickly rose throught the night as the wind shifted south to a high of 26 today.
Thats all I got for now.

[sam2004gp]

Here are my numbers.   

[PSJohn]

Some extremes I've recorded living in the desert southwest:

High Temperature  118.9° F on July 22, 2006
High heat index   122.7° F on July 16, 2010
Low Temperature  22.8° F on Jan. 14, 2007
High Wind Speed   59 mph on Jun. 4, 2008

Data since Jan 2004.

[zackdog]

I have had a weather station since 1994 and the extremes I have recorded are:

High Temperature  93.8° F on July 15, 2002
Low Temperature  -27.9° F on Dec. 8, 2005
High Wind Speed   51 mph on Feb. 16, 2007

Mark

This morning I recorded a new extreme low of -33.6° 

[The Garden Meterologist]

I have recorded a barometic pressure of 28.31 in of Hg on oct. 26 2010 during a extratropical cyclone that went thru our state I was watching on the net. Big Fork Little Falls had a record barometic pressure 28.21 in Hg in that same storm too. Here is a map when the system went thru our state.

[mcneese832000]

This past Tuesday, the frontal system that is giving us this very cold weather in SW Louisiana came through very fast and hard. My Vantage Vue recorded a rain rate of over 6 inches per hour for about 2 minutes! This is by far the most extreme measurement I have experienced in the 4 months I have had my Vantage Vue.

[Farmtalk]

I do not have a thermometer that records, but I have felt 100F temps, 95F days with 70F dew points, 5F with winds at 20mph....and 3 inches of rain in 45 minutes.

[JRinARK]

Just got my system, but in a matter of a couple of weeks. In Prairie Grove AR I had 73.1 on 1/29/11 and -5.6 on 02/10/2011. That is pretty extreme. That was just 12 days.