Friday, January 10, 2014

Free-For All Friday: Polar Vortex, Lake Erie Ice & Winter Stats

I won't belabor the Polar Vortex talk.  Its been played quiet enough everywhere. Check out my last post for my thoughts on its misuse earlier in the week.

First, the Lake Erie ice cover update:

Over the last week, we have DOUBLED the ice cover concentration. January 4th, Lake Erie was at 44%. By January 10th, the number was just south of 90% which is way ahead of last year and slightly ahead of January 2011 and 2001; fairly close to January 1996.  The MODIS high resolution visible satellite image illustrates this increase perfectly. First image is from January 4th, second is from January 9th.

January 4th

January 9th
Back in 2011, I took a photo from the E 55th marina after the lake froze over. Notice the railing in the foreground. Compare that to a photo I took on January 4th after strong winds sprayed the lake water on the shoreline which froze everything on contact including the railing.


 A few more close up photos from along the Cleveland shoreline.





Contrary to what you might think, this winter in northern Ohio hardly cracks the top 40 coldest winters through the first week of January. Remember the hard winters of the early 2000s?


Thursday, January 09, 2014

Weather Reporting Needs To Change: Polar Vortex Edition

Many media outlets in my opinion have incorrectly described the cold air outbreak across the US as the Polar Vortex moving across the US. Some have said that their reasoning was the 500mB heights/trough signature. I think that this 500mB northern hemispheric map shows it best. While the eastern US trough was deep, cold and unlike any outbreak since the early 1990s, other pieces of the PV were easily visible on the 500mB chart around the higher latitudes. Was this piece of the PV over the US the actual main Polar Vortex sliding south from the Arctic or was the piece over northern Asia or the one over Northern Europe the main Polar Vortex?  Or did the main Polar Vortex stay over the North Pole with several pieces breaking off, amplifying and propagating south into lower latitudes dragging down arctic air?  (The correct answer is the latter) But see what I mean?

Call it an argument of semantics. Call it splitting hairs. Call it no big deal. I say it is a VERY big deal.

In a time where basic, objective and accurate science knowledge isn't emphasized in the media; where the US is lagging many other counties in math and science scores; where short phrases and hashtags govern our daily social consciousness; where scary words like "Polar Vortex" gain national and international attention through its instantaneous proliferation through social networks, attention to detail makes a HUGE difference.

I understand that "Flash and Dash" reporting has long since replaced investigative reporting. I get it. I understand that holding the viewer as long as possible is an important driver of a newscast. That's not going away. But we still have a duty to educate the public when its appropriate.  All I ask is for some basic due diligence.  When meteorological phenomena like the "Polar Vortex" directly effects a large chunk of the nation's population, we owe it to the viewers to be as detailed, complete, objective and accurate as possible. Perhaps shelving the flashy reporting model with a more--dare I said it "old school" approach in these instances would serve the viewers better. I'm open to suggestions.

The last paragraph in this blog entry say it all.


Monday, January 06, 2014

ARCTIC OUTBREAK UPDATE

Huron, Erie, Sandusky and Ottawa Counties in OHIO under a LEVEL 3 snow emergency. Which means that only emergency vehicles are allowed on the roads.

Temperatures this low are not common in northern Ohio. It only happens a few times every few decades. Here is the cold air trivia for northern Ohio. This is on par with the cold of the late 70s and early 1980s.

The HUGE buckle in the overall jet stream across the North American continent has dumped arctic cold across most of the US and Canada
More than 85 million people are under a WIND CHILL WARNING. This is issued only when wind chills are expected to fall below -40 for more than 3 hours.

Lake Erie lost some ice over the weekend after a season high of 56.7%. Expect some rapid ice growth over the next few days.
Current wind chills are running between -10 and -30. CURRENT WIND CHILLS CAN BE FOUND HERE.

OVERNIGHT LOWS ARE EXPECTED TO FALL BETWEEN -12 AND -17 BELOW ZERO WITH WIND CHILLS BETWEEN -30 AND -40


Sunday, January 05, 2014

The Anatomy Of an ARCTIC BLAST: 2014 vs Previous -15 Days

We don't reach -15 or below very often in northern Ohio--only 12 times in 140+ years of record keeping. Signs of arctic cold show themselves in the temperatures above the earth's surface away from surface influences such as concrete.

To be clear, not every instance of below zero nights or days is exactly alike. Several parameters need to be in place for this to occur in northern Ohio: COLD AIR ALOFT (850 mB level - 5000 ft), clear skies and snow cover.  How cold do the 850 mB temperatures have to get to reach, say -15 or lower?  Looking back at the 6 coldest readings in Cleveland history (I also threw in 2009 because that was the last time we fell to -10 or below), the west to east 850 mB temperature profile looked different each time

The 1/19/1994 record low event looked like this at 850 mB. Cold core was north of the Great Lakes.
850 mB temps fell to between -30 to -32
1/23 and 1/24/1963 was a two day event, -17 and -19 respectively. The 850 mB temp profile was this. NCAR reanalysis was used because the grADS site only goes back to 1979. The temperatures are in Kelvin. Cold core north of the Great Lakes.
850 mB temps fell to around -28 converted from Kelvin
1/20 and 1/21/1985 was another two day event, -18 and -17. Notice how the core of the 850 mB cold was centered in the midwest over Iowa, Illinois and northern Missouri before it moved east into Ohio. The 850 temps were some of the coldest on record. Here is the 24 hour breakdown from the grADS site:


850 mB temps fell well below -30
1/21/1984 was similar in surface temperature yet the 850 mB temps never fell below -25. Once again, cold core north of the Great Lakes.

Based on my checking, the coldest 850 mB temperatures EVER were during the 1/16,17/1982 event with a -38!


Yet the surface temperatures never fell below -13 and -17 over the two days.

850 mB temperature fell to a mind blowing -38 Celsius!
The 1977 two day cold blast...temperatures are in Kelvin. -28 was the coldest in northern Ohio.


Finally, 1/16/2009...850 mB fell to at least -23. Cold core was shallow.
 How about the cold on Tuesday? The 850 mB forecast temperature drops to -30. 



Each instance has a different west to east 850 mB profile with different resulting surface temperatures even though   the 850 mB temps might have been similar to past events.





In other words, the 850 mB temps are only part of the story when it comes to predicting arctic cold overnight lows.



Some cold tidbits for Cleveland:

The last time we fell below zero was in 2011
The last time we fell below -10 was in 2009 when we hit -13 (5 nights below zero)
High temperature at or below zero:  14 Times
The last time was 1994:  -3
The coldest high temperature EVER in CLE:   -5 in 1985
Below zero high temperature happened twice in 1982
Below zero high temperature happened 5 Times in 1899
Winter 1976-77 had 28 instances or below zero temperatures (days and nights)

WINTER STORM UPDATE; DANGEROUS WIND CHILLS

Winter storm still on track however the heaviest snow will stay in NW Ohio later this evening and overnight tonight. Temperatures have climbed into the lower 30s so much of northern Ohio will see some rain before a sharp transition to sleet then snow this evening and overnight as temperature drop.


CURRENT RADAR
I am a bit skeptical on the large snow amounts for northeastern Ohio. Areas from TIFFIN, NORWALK to SANDUSKY and west could see 6-10". East of that arbitrary line, I think the amounts will be much less...that is until lake effect kicks in Monday.

Here is the probability of specific locations receiving at least 4 inches of snow. Notice how the chances drop big time further east.


THE BIGGEST STORY WILL BE THE TEMPERATURES AND WIND CHILL LATE MONDAY AND TUESDAY. TEMPERATURES EARLY TUESDAY MORNING WILL BE BETWEEN -10 AND -20. THE LAST TIME WE HAD TEMPERATURES THAT COLD WAS IN JANUARY 1994.


Friday, January 03, 2014

FINAL 2013 MOVIE LIST

The winter doldrums have officially begun. What a better way to combat cabin fever than with a good movie. Here is my complete 2013 movie list.  The final number was 90 which is my lowest number in 5 years. Some of these movies are oldies, some are brand new. I rank my top 10 in RED. Honorable mention in BOLD.

What were your favorite movies of 2013?

2009 MOVIE LIST  100 total
2010 MOVIE LIST  120 total
2011 MOVIE LIST  150 total
2012 MOVIE LIST  110 total

KILLER JOE
FRANKENWEENIE
SHOTGUN STORIES
SKYFALL
ZERO DARK THIRTY
DJANGO UNCHAINED
FLIGHT
CLOUD ATLAS
THE LIVES OF OTHERS
HOTEL TRANSYLVANIA

PSYCHO
SILVER LININGS PLAYBOOK
WRECK IT RALPH
THE SESSIONS
TROUBLE WITH THE CURVE
SEVEN PSYCHOPATHS
LIFE OF PI
HITCHCOCK
RISE OF THE GUARDIANS
ROBOT AND FRANK

THE MASTER
STAND UP GUYS
KILLING THEM SOFTLY
8 1/2
THE PLAYER
LORD OF THE RINGS
300
CHARLIE WILSON'S WAR
RUSHMORE
THIS IS 40

KNUCKELBALL!
GANGSTER SQUAD
IRON MAN 3
HITLER'S CHILDREN
THIS IS NOT A FILM
SCANNERS
EL VELADOR
MODERN TIMES
HOW TO SURVIVE A PLAGUE
A PLACE BEYOND THE PINES

MYANMAR
STAR TREK
HOLY MOTORS
FAT MAN LITTLE BOY
SIDE EFFECTS
SYRUP
THE COMPANY YOU KEEP
SEREPHIM FALLS
MUD
LORE

THE HOUSE I LIVE IN
GI JOE
PAIN AND GAIN
ABRAHAM LINCOLN VAMPIRE HUNTER
PARENTAL GUIDANCE
OBLIVION
BOY
NAKED LUNCH
GRAVITY
DIAL M FOR MURDER

EPIC
TAKE THIS WALTZ
ELYSIUM
5 BROKEN CAMERAS
MONSTERS UNIVERSITY
DESPICABLE ME 2
TURBO
THE WAY WAY BACK
RED 2
BEFORE MIDNIGHT

12 YEARS A SLAVE
FREEBIRDS
OSLO, AUGUST 31ST
DALLAS BUYERS CLUB
EASY RIDER
GROWN UPS 2
MAN OF STEEL
2 GUNS
PERCY JACKSON AND THE SEA MONSTERS
THE TO DO LIST

THE LONE RANGER
WOLVERINE
WE'RE THE MILLERS
THE WILD BUNCH
BEFORE SUNSET
BEFORE SUNRISE
THE STING
UPSTREAM COLOR
WALKING WITH THE DINOSAURS
SAVING MR BANKS

Wednesday, January 01, 2014

New Years Day: SNOW UPDATE

My snow forecast hasn't changed since yesterday.  The Winter Storm Watch has been downgraded to an Advisory. This isn't because snow totals will be lower. The difference is the snow will occur over a 36 hour period not inside the 24 hour watch criteria. Daytime accumulations will be around 4 inches with lesser amounts south of Akron and Canton. Notice the breaks south on radar

RADAR LOOP HERE




The back end of this snow system is linking up with this morning's snow in the middle of the country. USA RADAR LOOP HERE





 MAIN WAVE OF SNOW MOVES EAST LATER THIS EVENING.

   













Anticipate the bulk of the snow to fall overnight and Thursday morning. Total accumulations by early afternoon Thursday will be around 6 to 8 inches across a good portion of northern Ohio with lesser amounts south. Winds will be gusting to 30 mph tomorrow morning and afternoon so visibility will drop as will the wind chills (below zero) Thursday. Additional snow later Thursday will be lake effect east and some south on top of the general snow prior.


Again, I want to emphasize that this snow will occur over a 36 hour period not all at once.

Tuesday, December 31, 2013

Winter Storm Watch New Years Day/Thursday

A series of clipper snows have affected northern Ohio over the last 24 hours which amounts to several very dry inches of accumulation. Most of this will move out later today.

The bigger snow system is developing now...CURRENT RADAR LOOP HERE


The initial push of light snow will approach later tonight and early Wednesday. Accumulations through noon tomorrow will be around an inch or two. The storm itself begins to rotate southeast then more due east. It will take a while for the snow to converge along the front. Once that happens, the heaviest snow will affect northern Ohio Wednesday evening and overnight.

Winter Storm Watch in effect from Wednesday 7AM to Thursday 7AM for the following counties:

A WINTER STORM WATCH means there may be hazardous winter weather due to heavy snow. Heavy snow means 7 INCHES OR MORE of accumulation in 24 hours or less. They are issued at least 12 hours (sometimes 24-36 hours) before the hazardous winter weather is expected to begin. 

When the storm becomes imminent (inside 12 hours of occurring) or has a high probability of occurring, watches are upgraded to a "WARNING" which was done yesterday for select counties.



Initial snowfall projections are as follows. The track of the storm and its speed will determine if these numbers need to be adjusted later today and this evening.


Saturday, December 21, 2013

Heavy Rain Continues; River Flood Forecasts for Northern Ohio


SEVERE THUNDERSTORM WATCH FOR SOUTHERN OHIO UNTIL 3AM


Current radar loop shows widespread rainfall across not only Ohio but across the Ohio Valley. A line of storms will push though southern Ohio. Some storms are possible across portions of northern Ohio. LOOP AT THIS LINK


Rainfall amounts will be between 2 and 3 inches in many locations.
The initial flooding was due to snow melt which amounted to between 1/2" and an 1"+ of liquid. Now with a good 2" of rain today and tonight rivers will rise rapidly. Here are some river forecasts for northern Ohio. Most river will peak late Sunday and Sunday night.

HURON RIVER AT MILAN
KILLBUCK CREEK
BLACK RIVER AT ELYRIA
GRAND RIVER AT PAINESVILLE
CHAGRIN RIVER AT WILLOUGHBY
CHAGRIN RIVER
CUYAHOGA RIVER AT INDEPENDENCE
TUSCARAWAS RIVER IN MASSILLON
CUYAHOGA RIVER IN AKRON