Tornado, hail, and torrential rains hammer Hawaii

By: Dr. Jeff Masters , 5:50 PM GMT on March 10, 2012

Share this Blog
38
+

A waterspout made landfall on the Hawaiian island of Oahu Friday morning on the east shore town, becoming a rare Hawaiian tornado as it moved through the towns of Lanikai and Kailua. The twister, rated an EF-0 with winds of 60 - 70 mph, tore holes in roofs and downed trees along a 1 1/2 mile long, 20-yard wide path of damage. No injuries were reported. The same storm also brought golf ball sized hail raining down for about 45 minutes on Oahu. The islands have seen intense rains over the past week, thanks to a 1040 mb blocking high pressure system near 40°N, to the NNW of the island that forced a companion cutoff low near 25°N 165°W to stay put, bringing a series of heavy storms to the islands. Rainfall amounts over the past week have exceeded three feet in some locations. The resulting flooding forced the governor on Wednesday to declare two islands, Oahu and Kauai, disaster areas. The latest forecasts for Kauai and Oahu call for sporadic rains to continue over the weekend, followed by a drying trend during the coming week.


Video 1. On March 5, 2012, flooding rains of 3" per hour caused this creek to overflow the Loop Road on Kauai and wash away a pickup truck that tried to cross. The occupants evacuated safely.

Here are some select rainfall amounts over the past week, from the National Weather Service:

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1155 AM HST FRI MAR 9 2012

...TORRENTIAL RAINS SLAM HAWAII IN THE PAST WEEK...

A SLOW MOVING FRONT BROUGHT HEAVY RAIN TO MOST ISLANDS THE PAST WEEK...AS IT INTERACTED WITH SEVERAL DISTURBANCES ALOFT. THE FOLLOWING REPRESENTS 7-DAY RAINFALL TOTALS...FROM 11 AM FRIDAY MARCH
2 THROUGH 11 AM FRIDAY MARCH 9.

KAUAI
HANALEI 45.97
WAINIHA POWER HOUSE 43.84
KAPAHI 32.66
MOUNT WAIALEALE RAINGAGE 31.32
LIHUE AIRPORT 13.59

OAHU
OAHU FOREST NWR 39.65
MOANALUA - USGS - USGS 36.42
PUNALUU STREAM - USGS 31.46
WILSON TUNNEL 25.05
LULUKU 22.25
PACIFIC TSUNAMI WARNING CENTER 20.47
HONOLULU AIRPORT 4.54

MOLOKAI
MOLOKAI AIRPORT 2.74

MAUI
PUU KUKUI - USGS 16.70
KAHULUI AIRPORT 2.34

HAWAII
HILO AIRPORT 5.97


Video 2. Damage from the March 9, 2012 tornado on Oahu.

Hawaii's tornado history
Tornadoes are rare in Hawaii. According to the Tornado History Project, only 39 tornadoes have hit the state since 1950, an average of one tornado every 1.5 years. The strongest tornadoes to hit the state occurred in 1982, when a series of three F-2 twisters struck Oahu in February and March. Those months are the most frequent months for tornadoes, with 44% of the total. No one has ever been killed in a Hawaiian tornado, but six people have been injured.

Jeff Masters

Hawaii Hail (IslandStyle15)
Rare Hawaii hailstorm to be remembered
Hawaii Hail
Not A good day in Paradise (xJrhouckx)
Hawaii has had ping pong ball size hail and major flooding this week.
Not A good day in Paradise
Uwe ka lani, ola ka honua (Uwekalani)
When the heavens weep, the earth lives. Notice the color of the center falls. Taken from below the Pali Lookout. Many drivers pulled into the overlook to admire these amazing waterfalls.
Uwe ka lani, ola ka honua

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 413 - 363

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9Blog Index

413. TropicalAnalystwx13
3:43 PM GMT on March 12, 2012
Click on the radar image to go on to the next blog.

Member Since: July 6, 2010 Posts: 113 Comments: 32505
412. SPLbeater
3:37 PM GMT on March 12, 2012
Link to my new blog concerning Invest 95S and 96P...if anybody wants to check it out :D
Member Since: August 4, 2011 Posts: 46 Comments: 4488
411. TropicalAnalystwx13
3:22 PM GMT on March 12, 2012
There is a line of showers and thunderstorms across northeastern Illinois at this time. As it moves eastward into a more favorable environment, storms may become strong to severe, capable of producing damaging winds and isolated tornadoes.

Member Since: July 6, 2010 Posts: 113 Comments: 32505
410. 1911maker
3:11 PM GMT on March 12, 2012
Quoting Neapolitan:
From HAMWeather, look at some of these forecast anomalies for this Friday. These aren't actual temperatures, but departures from normal. Note the large area of >20 and even >30 departures--some of them close to 40 degrees above normal.

Warm


This is more of what is "normal" or "average for the fussy. :)
I put in the bold for emphasis.

Link
The Weather History for March 11th

3/11/2009
Blizzard Coyote, one of the worst since the 1997 winters. A strong low pressure system brought widespread blizzard conditions to much of the Red River Valley 11 March 2009 as a surge of arctic air spilled into the Northern Plains and Upper Midwest. The blizzard, which the Grand Forks Herald dubbed Blizzard Coyote, was likely the worst to hit the southern Valley in terms of visibility since the winter of 1996/1997. The Grand Forks WFO issued blizzard warnings for most of the Valley except for the far north.


The Weather History for March 12th

3/12/1997
A band of heavy snow fell across southeast North Dakota and west central Minnesota. Lisbon received a foot of new snow, while Litchville, Pelican Rapids and Cayuga each had 10 inches, Blue Grass reporting 9 inches, and Fergus Falls and Rothsay 8 inches. Northerly winds also gusted to 35 mph, producing near blizzard conditions.


Instead to day as I write this, it is raining. This kind of warm and rain I associate with April, not March.

Neo, you are good at finding records, if you have a moment, how many times has ND/MN had rain in the first two weeks of March in the last 30 years?
Member Since: February 25, 2011 Posts: 0 Comments: 474
409. WxGeekVA
3:03 PM GMT on March 12, 2012
Quoting KeyWestSun:

I believe his reasoning why he or she thinks the U.S. and other mainland will be more affected this upcoming season is based on atmospheric conditions, jet, and steering patterns--rather than probability and chances of past seasons.


I think that we both have the same idea of a season with more US impact but less storms overall, but for different reasons. Of course, mine aren't scientifically based and I have no data to back them up with, but my gut is one of my better forecasting tools IMHO.
Member Since: September 3, 2011 Posts: 13 Comments: 3476
408. Patrap
3:00 PM GMT on March 12, 2012
current SDO Image,enlarged





Added 3/12/2012 @ 12:05 UTC

Incoming Shock Detected / G2 Geomagnetic Storm

ACE detected an incoming shock this morning after 08:00 UTC. The Solar Wind jumped to near 600 km/s and a Geomagnetic Sudden Impulse measuring 96 nT was detected. A G2 Geomagnetic Storm (KP=6) is now in progress. Initially a CME impact was predicted for late tonight. The expanding cloud could have arrived much earlier than expected, or this shock may be unrelated. More information to follow.

ALERT: Geomagnetic K-index of 6

Threshold Reached: 2012 Mar 12 1155 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate

SUMMARY: Geomagnetic Sudden Impulse

Observed: 2012 Mar 12 0921 UTC
Deviation: 96 nT
Station: Boulder




Member Since: July 3, 2005 Posts: 426 Comments: 129089
406. WxGeekVA
2:51 PM GMT on March 12, 2012
Quoting KeyWestSun:

Regardless, this is only March and the conditions could very well change but right now I do not think this hurricane season will feature as many named storms as the last two have, but could even if the parameters are right, be much more memorable.

In your blog, what does the above statement mean?


After reading, what I believe he is saying is that there will be fewer storms, but those storms could have a big impact on the United States. I am thinking the same, it has been too long since a bad hurricane (excluding Irene, because I am talking about a Major hurricane) has impacted the Southeast. These GOM temps scare me just because of how warm they are for this time of year and that it isnt even close to hurricane season yet.

THAT BEING SAID: I hope his turns out to be uneventful in terms of landfalling systems but having plenty of "fish storms" that look great but affect nobody.
Member Since: September 3, 2011 Posts: 13 Comments: 3476
405. hurricanehunter27
2:47 PM GMT on March 12, 2012
Quoting KeyWestSun:

Couldn't the potential for that to occur be in any hurricane season?
Um yes. He was just stating it.
Member Since: July 22, 2010 Posts: 1 Comments: 3851
403. TropicalAnalystwx13
2:45 PM GMT on March 12, 2012
Quoting KeyWestSun:

Regardless, this is only March and the conditions could very well change but right now I do not think this hurricane season will feature as many named storms as the last two have, but could even if the parameters are right, be much more memorable.

In your blog, what do the above statement mean?

He's saying that even though we will not have as active as a hurricane season, with close to home formations more likely, this season could be more memorable than the past two.
Member Since: July 6, 2010 Posts: 113 Comments: 32505
402. hurricanehunter27
2:45 PM GMT on March 12, 2012
Quoting KeyWestSun:

Regardless, this is only March and the conditions could very well change but right now I do not think this hurricane season will feature as many named storms as the last two have, but could even if the parameters are right, be much more memorable.

In your blog, what do the above statement mean?
Not him but he is saying that we could have major hurricanes hitting the US if the conditions are right. Therefor making it a more memorable season.
Member Since: July 22, 2010 Posts: 1 Comments: 3851
401. hurricanehunter27
2:43 PM GMT on March 12, 2012
Quoting GeorgiaStormz:

From the forecast for my area in N GA:


Wednesday: Mostly sunny, with a high near 80. Calm wind becoming west around 5 mph.

Wednesday Night: Partly cloudy, with a low around 52.

Thursday: Mostly sunny, with a high near 82.

Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

Friday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.


Here come the bugs and the pollen. My house is already beseiged by hundreds of bees around our bushes. Those disappering honeybees seem to be back. Im a goner
Yah noticing that also! cant believe we already have 80's in the forecast. Who knows we could get in the 90's if all of this craziness continues.
Member Since: July 22, 2010 Posts: 1 Comments: 3851
399. CybrTeddy
2:38 PM GMT on March 12, 2012
March 2012 Hurricane season updates!
March predictions for the 2012 Atlantic Hurricane Season 3/12/12
Member Since: July 8, 2005 Posts: 259 Comments: 24457
398. SPLbeater
2:28 PM GMT on March 12, 2012
koji is gone...Peak intensity of 70kts
Member Since: August 4, 2011 Posts: 46 Comments: 4488
397. Minnemike
2:21 PM GMT on March 12, 2012
Quoting Neapolitan:
From HAMWeather, look at some of these forecast anomalies for this Friday. These aren't actual temperatures, but departures from normal. Note the large area of >20 and even >30 departures--some of them close to 40 degrees above normal.

Warm
those anomalies would pass as actual temps in a normal daily high for this date... in fact, the Mpls 34F anomaly seems higher than an expected average temp for this date! (or close to)
Member Since: July 31, 2008 Posts: 0 Comments: 1320
396. nigel20
2:20 PM GMT on March 12, 2012
Later guys
Member Since: November 6, 2010 Posts: 11 Comments: 8311
395. SPLbeater
2:18 PM GMT on March 12, 2012
ok well....i was going, to do some work on the front yard, but my dad has the key to tha building, and i dont. and the building is locked:/
Member Since: August 4, 2011 Posts: 46 Comments: 4488
394. WxGeekVA
2:18 PM GMT on March 12, 2012
Are Online Comment Sections Becoming a Joke?
Member Since: September 3, 2011 Posts: 13 Comments: 3476
393. nigel20
2:12 PM GMT on March 12, 2012
Quoting washingtonian115:
I think we'll all know what the pattern is going to be like in late May early June.

Agreed
Member Since: November 6, 2010 Posts: 11 Comments: 8311
392. CybrTeddy
2:12 PM GMT on March 12, 2012
Quoting TropicalAnalystwx13:

I don't like anybody should have thought it would end up a significant El Nino year to begin with. These changes are rapid, just gradual.


I think it's about time for me to crank out my March hurricane season predictions.
Member Since: July 8, 2005 Posts: 259 Comments: 24457
391. washingtonian115
2:08 PM GMT on March 12, 2012
Quoting nigel20:

Yeah, it's a waiting game
I think we'll all know what the pattern is going to be like in late May early June.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
390. nigel20
1:51 PM GMT on March 12, 2012
Quoting washingtonian115:
This is exacally why the Colorado team didn't predict what the season was going to be like back in December.People were uncertain what was going to happen over in the pacific.Now the models are flipping back and forth.

Yeah, it's a waiting game
Member Since: November 6, 2010 Posts: 11 Comments: 8311
389. Neapolitan
1:42 PM GMT on March 12, 2012
Quoting RitaEvac:


Thank GOD there's no such things as normal.
"Normal" in this context--the meteorological one--means the specific average over the standard 30-year base period, which is currently 1981-2010. IOW, this Friday's temperatures in Wisconsin are forecast to be 39 degrees above the 1981-2010 mean average for that area.

Yikes...
Member Since: November 8, 2009 Posts: 4 Comments: 13597
388. washingtonian115
1:41 PM GMT on March 12, 2012
Quoting nigel20:

Agreed
This is exacally why the Colorado team didn't predict what the season was going to be like back in December.People were uncertain what was going to happen over in the pacific.Now the models are flipping back and forth.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
387. SPLbeater
1:40 PM GMT on March 12, 2012
morning all. wont be here long, got to go get started on the work outside dad assigned to me. But i shall be lurking....lol
Member Since: August 4, 2011 Posts: 46 Comments: 4488
386. nigel20
1:38 PM GMT on March 12, 2012
Quoting Neapolitan:
From HAMWeather, look at some of these forecast anomalies for this Friday. These aren't actual temperatures, but departures from normal. Note the large area of >20 and even >30 departures--some of them close to 40 degrees above normal.

Warm

These temp anomalies are unbelievable for this time of the year
Member Since: November 6, 2010 Posts: 11 Comments: 8311
385. RitaEvac
1:36 PM GMT on March 12, 2012
Quoting Neapolitan:
From HAMWeather, look at some of these forecast anomalies for this Friday. These aren't actual temperatures, but departures from normal. Note the large area of >20 and even >30 departures--some of them close to 40 degrees above normal.

Warm


Thank GOD there's no such things as normal.
Member Since: July 14, 2008 Posts: 1 Comments: 9645
384. nigel20
1:34 PM GMT on March 12, 2012
Quoting washingtonian115:
I never predicted a strong El nino.Maybe a weak one? yes.But a strong one?.No.As others have already said we have a cold PDO that's just not going to really allow it.

Agreed
Member Since: November 6, 2010 Posts: 11 Comments: 8311
383. Neapolitan
1:33 PM GMT on March 12, 2012
From HAMWeather, look at some of these forecast anomalies for this Friday. These aren't actual temperatures, but departures from normal. Note the large area of >20 and even >30 departures--some of them close to 40 degrees above normal.

Warm
Member Since: November 8, 2009 Posts: 4 Comments: 13597
382. washingtonian115
1:31 PM GMT on March 12, 2012
I never predicted a strong El nino.Maybe a weak one? yes.But a strong one?.No.As others have already said we have a cold PDO that's just not going to really allow it.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
381. TropicalAnalystwx13
1:25 PM GMT on March 12, 2012
Quoting WDEmobmet:
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1259 AM CDT MON MAR 12 2012

VALID 121200Z - 131200Z


...MID SOUTH/CENTRAL GULF COAST REGION...
DESPITE WEAK/UNFOCUSED ASCENT...DAYTIME HEATING OF A MOIST BOUNDARY
LAYER WILL CONTRIBUTE TO THE DEVELOPMENT OF 1000 TO 1500 J/KG
MIXED-LAYER CAPE...SUPPORTING SUBSEQUENT INITIATION OF SCATTERED TO
ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS. GIVEN THE DEGREE OF
CAPE AND DEEP-LAYER SHEAR 30 TO 40 KT EXPECTED...A FEW
STRONGER/ORGANIZED STORMS COULD EVOLVE...CAPABLE OF PRODUCING GUSTY
WINDS AND HAIL.

LACK OF A LOW-LEVEL FOCUS AND THUS THE EXPECTATION OF LIMITED STORM
COVERAGE PRECLUDES UPGRADE TO SLIGHT RISK ATTM. SHOULD POTENTIAL
FOR MORE WIDESPREAD STORMS BECOME EVIDENT...UPGRADE MAY BE NEEDED IN
SUBSEQUENT OUTLOOKS.


Member Since: July 6, 2010 Posts: 113 Comments: 32505
380. TropicalAnalystwx13
1:24 PM GMT on March 12, 2012
Quoting CybrTeddy:


Indeed. It's starting to appear less likely that this year will be a significant El Nino year, rather a warm neutral one.

I don't like anybody should have thought it would end up a significant El Nino year to begin with. These changes are not rapid, just gradual.
Member Since: July 6, 2010 Posts: 113 Comments: 32505
379. CybrTeddy
1:22 PM GMT on March 12, 2012
Quoting JRRP:
this season will be interesting



Indeed. It's starting to appear less likely that this year will be a significant El Nino year, rather a warm neutral one.
Member Since: July 8, 2005 Posts: 259 Comments: 24457
378. TropicalAnalystwx13
1:19 PM GMT on March 12, 2012
Quoting GeorgiaStormz:


maybe, but your ridge of warmth may come crashing down into a week:

That's in 372 hours and the model has shown no consistency. Ignore that.
Member Since: July 6, 2010 Posts: 113 Comments: 32505
377. washingtonian115
1:13 PM GMT on March 12, 2012
Quoting GeorgiaStormz:


maybe, but your ridge of warmth may come crashing down into a week:
Some shots of cold air are possible still.May could very well end up cold.Such as years like 05,06,08,10,and 11.But the last few days of May and the rest off the summer(besides 09) were very hot.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
376. nigel20
1:11 PM GMT on March 12, 2012
Quoting washingtonian115:
Neu-neutral?.That only spells trouble...hopefully hurricane season is good to us.

I'm hoping for a good season as well
Member Since: November 6, 2010 Posts: 11 Comments: 8311
375. GeorgiaStormz
1:08 PM GMT on March 12, 2012
Quoting washingtonian115:
Yep.Looking forward to it.The pool will more than likley open up early.The kids are going to enjoy this!.


maybe, but your ridge of warmth may come crashing down into a week:
Member Since: February 11, 2012 Posts: 0 Comments: 9737
374. nigel20
1:07 PM GMT on March 12, 2012
Why do you guys think the azores high was/is that big and strong through out this winter? It is also the cause of the drought in southern UK, spain and other parts of europe
Member Since: November 6, 2010 Posts: 11 Comments: 8311
373. washingtonian115
1:06 PM GMT on March 12, 2012
Quoting nigel20:

Good morning guys....looking as if we will have neutral condition through out the hurricane season
Neu-neutral?.That only spells trouble...hopefully hurricane season is good to us.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
372. washingtonian115
1:04 PM GMT on March 12, 2012
Quoting StormTracker2K:


Unreal! We could be in full summer mode come May.
Yep.Looking forward to it.The pool will more than likley open up early.The kids are going to enjoy this!.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
371. nigel20
1:01 PM GMT on March 12, 2012
Quoting JRRP:

Good morning guys....looking as if we will have neutral condition through out the hurricane season
Member Since: November 6, 2010 Posts: 11 Comments: 8311
370. StormTracker2K
12:54 PM GMT on March 12, 2012
Quoting washingtonian115:
It will be in it's 70's to near 80' all week.Yes!.


Unreal! We could be in full summer mode come May.
Member Since: October 26, 2011 Posts: 0 Comments: 2651
369. GeorgiaStormz
12:53 PM GMT on March 12, 2012

From the forecast for my area in N GA:


Wednesday: Mostly sunny, with a high near 80. Calm wind becoming west around 5 mph.

Wednesday Night: Partly cloudy, with a low around 52.

Thursday: Mostly sunny, with a high near 82.

Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

Friday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.


Here come the bugs and the pollen. My house is already beseiged by hundreds of bees around our bushes. Those disappering honeybees seem to be back. Im a goner
Member Since: February 11, 2012 Posts: 0 Comments: 9737
368. StormTracker2K
12:51 PM GMT on March 12, 2012
Post# 362 looks scary!
Member Since: October 26, 2011 Posts: 0 Comments: 2651
367. washingtonian115
12:51 PM GMT on March 12, 2012
It will be in it's 70's to near 80' all week.Yes!.
Member Since: August 14, 2010 Posts: 10 Comments: 17474
366. WDEmobmet
12:49 PM GMT on March 12, 2012
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1259 AM CDT MON MAR 12 2012

VALID 121200Z - 131200Z


...MID SOUTH/CENTRAL GULF COAST REGION...
DESPITE WEAK/UNFOCUSED ASCENT...DAYTIME HEATING OF A MOIST BOUNDARY
LAYER WILL CONTRIBUTE TO THE DEVELOPMENT OF 1000 TO 1500 J/KG
MIXED-LAYER CAPE...SUPPORTING SUBSEQUENT INITIATION OF SCATTERED TO
ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS. GIVEN THE DEGREE OF
CAPE AND DEEP-LAYER SHEAR 30 TO 40 KT EXPECTED...A FEW
STRONGER/ORGANIZED STORMS COULD EVOLVE...CAPABLE OF PRODUCING GUSTY
WINDS AND HAIL.

LACK OF A LOW-LEVEL FOCUS AND THUS THE EXPECTATION OF LIMITED STORM
COVERAGE PRECLUDES UPGRADE TO SLIGHT RISK ATTM. SHOULD POTENTIAL
FOR MORE WIDESPREAD STORMS BECOME EVIDENT...UPGRADE MAY BE NEEDED IN
SUBSEQUENT OUTLOOKS.
Member Since: February 3, 2010 Posts: 0 Comments: 755
365. StormTracker2K
12:45 PM GMT on March 12, 2012
Picked up 1.06" since last Friday here near Orlando with Melbourne picking 2.24" yesterday. We had an unexpected rainy weekend here in E C FL.
Member Since: October 26, 2011 Posts: 0 Comments: 2651
363. JRRP
12:27 PM GMT on March 12, 2012
Member Since: August 16, 2007 Posts: 0 Comments: 6155

Viewing: 413 - 363

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

Local Weather

Overcast
49 °F
Overcast