Hottest rain on record? Rain falls at 115°F in Needles, California

By: Dr. Jeff Masters , 3:19 PM GMT on August 15, 2012

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A searing heat wave rare even for the Desert Southwest sent temperatures soaring to record levels on Monday, with Needles, California tying its record high for the date of 118°F (47.8°C). The temperature might have gone higher in Needles, but a thunderstorm rolled in at 3:20 pm, and by 3:56 pm PDT, rain began falling at a temperature of 115°F (46.1°C). Most of the rain evaporated, since the humidity was only 11%, and only a trace of precipitation was recorded in the rain gauge. Nevertheless, Monday's rain at 115° in Needles sets a new world record for the hottest rain in world history. I don't think many people were outside to experience to experience the feeling of rain falling at 115°, but if they were, it must have been an uncomfortable, sauna-like experience! Thanks go to Dr. Warren Blier of the NWS Monterey office for pointing out this remarkable event to me.

It is exceedingly rare to get rain when the temperature rises above 100°F, since those kind of temperatures usually require a high pressure system with sinking air that discourages rainfall. Monday's rain in Needles was due to a flow of moisture coming from the south caused by the Southwest U.S. monsoon, a seasonal influx of moisture caused by the difference in temperature between the hot desert and the cooler ocean areas surrounding Mexico to the south. According to weather records researcher Maximiliano Herrera, the previous record for hottest rain, which I blogged about in June, was a rain shower at 109°F (43°C) observed in Mecca, Saudi Arabia on June 5, 2012 and in Marrakech, Morocco on July 10, 2010. The 11% humidity that accompanied Monday's rain shower at 115° in Needles was the lowest humidity rain has ever occurred at anywhere on Earth in recorded history, according to Mr. Herrera.


Figure 1. True-color MODIS satellite image of California and Arizona taken at 1:25 pm PDT August 13, 2012. Developing thunderstorms surround Needles, CA, and the line of clouds to the southwest of the city would develop into a thunderstorm that brought rain to the city at 4 pm PDT, at a temperature of 115°F. Image credit: NASA.

A "very rare" heat wave for Phoenix
The heat wave that brought Needles' record hot rain has broken an exceptional number of heat records in Phoenix, Arizona the past two weeks. According to the Phoenix NWS office, the "almost unbearable heat" of the first two weeks of August is a "very rare" event, and August 1 - 14, 2012 was the warmest such 2-week period in city history. The average temperature on August 6 - 13 was 100°F or higher each of the eight days, tying the record for most consecutive days with an average temperature of 100°. The temperature peaked at 116° on August 8, just 6° below Phoenix's all-time record of 122° set on June 26, 1990. The forecast for Phoenix call for a bit of relief--highs are expected to be a relatively modest 105° today, and down near 100° by Friday.


Figure 2. Morning satellite image of 93L over the Central Atlantic.

93L close to tropical depression status
A large tropical wave (Invest 93L) is located in the Central Atlantic about 700 miles east of Bermuda. Satellite loops this morning show a surface circulation has formed, and heavy thunderstorm activity has increased to the point where 93L should be considered a tropical depression, if the heavy thunderstorms can persist through this afternoon. Wind shear is light, and ocean temperatures are warm, near 28°C. The latest Saharan Air Layer Analysis from the University of Wisconsin shows that 93L has moistened its environment considerably, and dry air should no longer be a significant impediment to development. The 8 am EDT run of the SHIPS model predicts that wind shear will remain in the low range through the weekend, and I expect this system will become Tropical Storm Gordon by Friday. The storm will not affect Bermuda, but residents of the Azores Islands should keep an eye on 93L, which could pass through the islands as early as Sunday night. In their 8 am Tropical Weather Outlook, NHC gave 93L an 80% chance of becoming a tropical depression by Friday morning.

Elsewhere in the tropics
In the Gulf of Mexico, a fall-like cold front is expected to stall out early next week, and the GFS model is predicting something could start to spin up near the Texas/Mexico border on Monday. Wind shear is predicted to be low to moderate, and cold fronts stalled out over the Gulf of Mexico often serve as the seed for tropical storms.

Most of the models predict development of a new tropical wave off the coast of Africa 6 - 7 days from now.

Jeff Masters

Haboob #7 (nukegm)
Another dust storm rolling into town.
Haboob #7
Strike over the Lake. (weathercts99)
A stunning bolt of lightning over a lake in Chandler.
Strike over the Lake.

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CANTBELIEVEIT should be banned from the site. Has added nothing but the same ol' line from day one here. Dozens of posts stating the same lame line over and over is troll worthy indeed. Not an annoying troll mind you, just a really lame one. If he had some science behind it and added more than just his two sentences every time saying the same thing, maybe it'd have some validity to it. It's way too early to make definitive statements one way or another about the season. Have heard several say the roughly the same thing but with context and science behind it. Big difference.
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Anyone else notice that the SST map on the Tropical Weather main page no longer displays the 26C isotherm mark?

Is there a reason for this?

Personally, I've noticed that it is extremely far to the north in the central Atlantic, probably the farthest I've ever seen it...though on the western side of the Atlantic it's still about 50 miles south of the previous record farthest north point.

The TD8 is over 28C water, and 26C goes all the way up to about 42 or 43N...
Member Since: January 25, 2012 Posts: 33 Comments: 1520
Quoting tropicfreak:


And I am completely jealous of you :P.




heh heh
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Quoting Tazmanian:
dont you all love the 1st day of school and 1st day of homework


at lest i dont have to go to school any more


And I am completely jealous of you :P.
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Quoting TropicalAnalystwx13:

You took Geometry in 8th grade? I'm in 10th and just now taking it.

I have already taken Algebra 2 though.


I took Geometry in 9th grade and Algebra 2 in 10th grade. Going into my 11th grade year I'm taking Trig/Analysis.
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dont you all love the 1st day of school and 1st day of homework


at lest i dont have to go to school any more
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The blog page is all messed up as viewed on my iPhone, and I don't know what post it is.
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Quoting aspectre:
564 mitthbevnuruodo: In the UK they have the same problem in bars...but it's over football teams not politics or religion...

Well at least they're fighting over something important...
Oh wait, they call soccer "football" over there.
Never mind.


I do get a laugh out of telling people it's predominantly been more a girls sport in the states :P
No offense to any guys there who follow soccer, but it has been more a girls sport there traditionally compared to baseball and football (American of course)!
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was there ever any more information, data or repercussions due the storm that was churning up the arctic ice/waters a couple weeks back?
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Quoting allancalderini:
I also took Geometry in 10th and Algebra 2 in 9th . now in 11th am taking pre-calculus and Physics.

How was your first day? Most of my classes are going good with the exception of physical science...confusing as heck.
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So anything on the 18z gfs now?
Member Since: June 4, 2012 Posts: 0 Comments: 767
Storms starting to connect the dots along the I-4 corridor..
Member Since: June 23, 2010 Posts: 0 Comments: 583
I'm sticking with my 15 named storms strong and firm.We've had 8 depressions so far.7 more named storms sure do look like a possibility with probably 2 more storms forming in the next week.So much for your "inactive El nino year" right?.Maybe when the season ends will have 16 storms with 15 of those being named.If my prediction is wrong I'll gladly eat crow.
Member Since: August 14, 2010 Posts: 10 Comments: 16890
564 mitthbevnuruodo: In the UK they have the same problem in bars...but it's over football teams not politics or religion...

Well at least they're fighting over something important...
Oh wait, they call soccer "football" over there.
Never mind.
Member Since: August 21, 2007 Posts: 0 Comments: 4860
just west of Hartford...we're getting walloped

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Quoting STXHurricanes2012:
Off Topic but Seattle's Felix Hernandez just thrown a Perfect Game!!! Now back to weather!
sigh...against my Rays.

Quoting Tribucanes:
Cubs are the Jose of baseball. Hardly worth watching, weak, and always on the verge of falling apart.
What has it been 100 years or so since they were last in the World Series? Anyways that is all I will post on that as this is a weather blog.
Member Since: August 31, 2009 Posts: 0 Comments: 5628
Quoting PalmBeachWeather:
Where are you thunder?

10 miles southeast of Tampa.
Member Since: June 23, 2010 Posts: 0 Comments: 583
Cubs are the Jose of baseball. Hardly worth watching, weak, and always on the verge of falling apart.
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Quoting thunderbug91:

How's it looking like for my side of the state? We got crushed last evening...
Where are you thunder?
Member Since: October 3, 2008 Posts: 0 Comments: 5844
Quoting TropicalAnalystwx13:

You took Geometry in 8th grade? I'm in 10th and just now taking it.

I have already taken Algebra 2 though.
I also took Geometry in 10th and Algebra 2 in 9th . now in 11th am taking pre-calculus and Physics.
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Quoting StormTracker2K:
I love living in FL just for this reason "Thunderstorms" as we are going to get hammered today. These cumulus clouds are really shooting up right now. Just a matter of time!


How's it looking like for my side of the state? We got crushed last evening...
Member Since: June 23, 2010 Posts: 0 Comments: 583
UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 8.1.3
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 15 AUG 2012 Time : 204500 UTC
Lat : 29:50:24 N Lon : 55:05:35 W


CI# /Pressure/ Vmax
2.1 /1010.2mb/ 31.0kt


Final T# Adj T# Raw T#
2.1 2.2 3.3

Center Temp : -33.2C Cloud Region Temp : -31.2C

Scene Type : CURVED BAND with 0.67 ARC in MD GRAY

Positioning Method : FORECAST INTERPOLATION
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Quoting STXHurricanes2012:
Off Topic but Seattle's Felix Hernandez just thrown a Perfect Game!!! Now back to weather!
Lost all interest in Baseball since Griffey Jr. retired....Now, back to weather
Member Since: October 3, 2008 Posts: 0 Comments: 5844
Off Topic but Seattle's Felix Hernandez just thrown a Perfect Game!!! Now back to weather!
Member Since: June 4, 2012 Posts: 0 Comments: 767
Quoting aspectre:
544 VAbeachhurricanes: READ THE REPORT

You read the report. Cuz it's O B V I O U S that ya haven't even glanced at it.
But you ain't gonna, are ya? No sense confusing yourself with facts when ya already know it all.


I have read the report. I haven't glanced at it? That's why I posted a link to it and posted a paragraph from it on the blog?
Member Since: September 6, 2007 Posts: 0 Comments: 6352
Got to go for now...
Be back later tonight, around the time you should see
TS GORDON on the NHC site ;)
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Quoting TropicalAnalystwx13:

You took Geometry in 8th grade? I'm I'm 10th and just now taking it.

I have already taken Algebra 2 though.
Yep....I had Mr. Whitaker... He had little holes all over his shirt from dropping cigarette ashes on his shirt...But he was cool.
Member Since: October 3, 2008 Posts: 0 Comments: 5844
Quoting Patrap:
The PREVIEW COMMENT button next to the POST COMMENT button is really underused I'd say.

I use it...When Im posting a blog link or a picture...

Im sure some of you remember my mishap, with a couple of pictures that literaly took up half the blog space on the page, with just codes, because the pictures weren't set correctly...
oops.

I've been using the preview button for all my picture comments, ever since... lol
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Quoting reedzone:


I will send video from that storm in Flagler in a bit.. Looked like a severe storm, but there was not even a special weather statement..
ummm....the NWS has issued a severe thunderstorm warning on this one. Particular area of concern is Eastern Flagler County.
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Quoting reedzone:
Racing home before the storm hits



dont get a speeding tick it
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Quoting TropicalAnalystwx13:

You took Geometry in 8th grade? I'm I'm 10th and just now taking it.

I have already taken Algebra 2 though.

Yeah, I was going to say the same thing xD
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The PREVIEW COMMENT button next to the POST COMMENT button is really underused I'd say.
Member Since: July 3, 2005 Posts: 423 Comments: 127861
Quoting PalmBeachWeather:
Dean.Were you the guy that sat next to me in Geometry class in 8th grade?

You took Geometry in 8th grade? I'm in 10th and just now taking it.

I have already taken Algebra 2 though.
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Quoting PalmBeachWeather:
Dean.Were you the guy that sat next to me in Geometry class in 8th grade?

lol. I don't remember moving to Florida last year...so, Im gonna have to say No to that...
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Quoting Neapolitan:
Something you don't see too often in the Atlantic:

AL, 08, 2012081518, , BEST, 0, 291N, 550W, 30, 1013, TD, 34, NEQ, 0, 0, 0, 0, 1017, 150, 35, 40, 0, L, 0, , 0, 0, EIGHT, M,

Its right next to the A/B high... which is about 1025 MB in heights, right now...

So relatively, if you put TD 8 in the tropics, it would have a pressure around 1005 or so.
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Racing home before the storm hits
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Quoting HurricaneDean07:
Predictions for the next 15 Days:
Chances of Gordon becoming a hurricane- 47%
Chances of getting Helene within the time-frame- 55%
Chances of a storm hitting a landmass within the time-frame- 45%
Chances of a hurricane hitting a landmass within the time-frame- 12%
Chance of getting Isaac within the time-frame- 38%
Dean.Were you the guy that sat next to me in Geometry class in 8th grade?
Member Since: October 3, 2008 Posts: 0 Comments: 5844
544 VAbeachhurricanes: READ THE REPORT

You read the report. Cuz it's O B V I O U S that ya haven't even glanced at it.
But you ain't gonna, are ya? No sense confusing yourself with facts when ya already know it all.
Member Since: August 21, 2007 Posts: 0 Comments: 4860
Predictions for the next 15 Days:
Chances of Gordon becoming a hurricane- 47%
Chances of getting Helene within the time-frame- 55%
Chances of a storm hitting a landmass within the time-frame- 45%
Chances of a hurricane hitting a landmass within the time-frame- 12%
Chance of getting Isaac within the time-frame- 38%
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Something you don't see too often in the Atlantic:

AL, 08, 2012081518, , BEST, 0, 291N, 550W, 30, 1013, TD, 34, NEQ, 0, 0, 0, 0, 1017, 150, 35, 40, 0, L, 0, , 0, 0, EIGHT, M,
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The Outflow Boundaries converged right over da Haus.





Member Since: July 3, 2005 Posts: 423 Comments: 127861
Quoting mitthbevnuruodo:


In the UK they have the same problem in bars...but it's over football teams not politics or religion...and many bars people aren't allowed to wear team shirts and the like it's so bad!

Not sure which is worse, place where so many don't care about politics and their main worry is their football teams, or somewhere where people are too passionate about their politics :o

I'm really curious now though, a few pages back the track of a storm in 66' I think, that was a hurricane all the north of Scotland...would they even keep it classified as such nowadays? I'm sure it would be branded extra-tropical before reaching the North Sea area.
I know the UK got hit by some remnants around 1980, that one weatherman has never lived down saying on air 'not to worry, there's no hurricane on the way'...which, there technically wasn't as it was at least post-tropical by the time it hit, but it still had hurricane force winds and caused tons of damage. it's still spoken of today and comes up on tv progs it was such a big thing. Though I think it's cause he dismissed it in such a way, people didn't even realise such a big storm was coming.


Funny you mention that. The bar I managed was called the Pig and Whistle, an Irish pub. And I believe it was in 1991 or 1992 when Ireland was playing against England in soccer and the owner opened the bar early and was showing the tape delayed game. We had put up signs on both doors saying if you know the outcome of the game don't tell us. The place was packed and an American came into the bar, looked at the television and said the final score (it was a tie). Poor guy, he had not read the signs and got beat up by about 6 angry Irishmen.
Member Since: August 16, 2007 Posts: 0 Comments: 613
582. HadesGodWyvern (Mod)
Japan Meteorological Agency
Tropical Cyclone Advisory #28
SEVERE TROPICAL STORM KAI-TAK (T1213)
6:00 AM JST August 16 2012
====================================

SUBJECT: Category Two Typhoon In South China Sea

At 21:00 PM UTC, Severe Tropical Storm Kai-Tak (985 hPa) located at 18.8N 117.5E has 10 minute sustained winds of 50 knots with gusts of 70 knots. The cyclone is reported as moving west at 12 knots.

Dvorak Intensity: T3.0

Gale Force Winds
================
210 NM from the center

Forecast and Intensity
========================

24 HRS: 20.5N 112.5E - 55 knots (CAT 2/Severe Tropical Storm) Northern South China Sea
45 HRS: 21.8N 107.8E - 40 knots (CAT 1/Tropical Storm) Overland Southern China
69 HRS: 23.3N 102.6E - Tropical Depression Overland Southern China

Tropical Cyclone Bulletin

Here is the latest Tropical Cyclone Bulletin issued by the Hong Kong Observatory.

The Standby Signal, No. 1 is in force.

This means that a tropical cyclone now centered within about 800 kilometers of Hong Kong may affect us.

Severe Tropical Storm Kai-Tak was estimated to be about 530 kilometers southeast of Hong Kong and is forecast to move west-northwest towards the coast of western Guangdong.


Philippines Atmospheric Geophysical Astronomical Services and Administration
Tropical Cyclone Bulletin #14 FINAL
TROPICAL STORM HELEN (KAI-TAK)
5:00 AM PhST August 16 2012
================================

Tropical Storm "HELEN" has accelerated further as it moves away from the country

At 4:00 AM PhST, Tropical Storm Helen located at 19.1N 117.7E or 290 km west northwest of Laoag City has 10 minutes sustained winds of 45 knots with gusts of 55 knots. The cyclone is reported as moving west northwest at 13 knots.

Additional Information
=======================

Public Storm Warning Signal elsewhere now lowered.

With this development, this is the final bulletin on this weather disturbance.

However, this disturbance will continue to enhance the southwest monsoon bringing rains and moderate to strong winds over Luzon and western Visayas.

Residents living in low lying and mountainous areas affected by the Southwest Monsoon are alerted against possible flash floods and landslides.

Fishing boats and other small seacrafts are advised not to venture out into the seaboards of Luzon and western Visayas due to the combined effect of Tropical Storm "Helen" and the southwest monsoon.

National Hurricane Center Miami
Tropical Cyclone Advisory #18
TROPICAL DEPRESSION, FORMER HECTOR (EP082012)
2:00 PM PDT August 15 2012
======================================

SUBJECT: "Hector" Weakens Into A Tropical Depression

At 18:00 PM UTC, Tropical Depression, Formeer Hector (1003 hPa) located at 18.5N 115.0W or 230 NM west of Socorro Island has sustained winds of 30 knots with gusts of 40 knots. The depression is reported as moving north at 6 knots.

Dvorak Intensity: T2.0

Forecast and Intensity
=====================
24 HRS: 20.5N 115.3W - 30 knots (Tropical Depression)
48 HRS: 22.3N 116.3W - 25 knots (Low Pressure Area)
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Gordon should peak around 80 Mph, similar to what Chris did earlier this year, Gordon's just in better conditions and in warmer water for the time being, and up through the Weekend...
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Quoting HurricaneDean07:

If the XTRP is right, we could have a landfalling storm into Canada in about 5 days ;)

Sarcasm flag: ON
That damn XTRAP made me have one more Bud Light ... It is always on course
Member Since: October 3, 2008 Posts: 0 Comments: 5844
Quoting kwgirl:
You have such a way with words Nea. Never before have I seen or heard that phrase "clutching their pearls", but it is so descriptive. Thank you. I can't wait for an opportunity to use it. :)

Clutching pearls is a cliche, a nice one if not applied to you. You can read about it here at grammarphobia.

Carry on.
Member Since: May 18, 2006 Posts: 10 Comments: 6011
Quoting StormTracker2K:
This line forming to my north is going to build down into Orlando as the East Coast sea breeze rolls in.



I will send video from that storm in Flagler in a bit.. Looked like a severe storm, but there was not even a special weather statement..
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Quoting GTcooliebai:
Now that is what I call consensus, how come we can't get that with Gulf and Caribbean storms?


If the XTRP is right, we could have a landfalling storm into Canada in about 5 days ;)

Sarcasm flag: ON
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Quoting GTcooliebai:
Now that is what I call consensus, how come we can't get that with Gulf and Caribbean storms?


Too many factors at play with the storms weve seen in the Caribbean and Gulf this year, This pattern is very straight-forward...
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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