Unprecedented early-year heat smashes all-time records in Midwest

By: Dr. Jeff Masters , 2:04 PM GMT on March 15, 2012

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The first day of spring doesn't arrive until Tuesday, but Mother Nature has fast-forwarded past spring and gone straight to summer over the Midwest. Yesterday, large portions of Michigan, Illinois, Wisconsin, Minnesota, and Indiana recorded their all-time warmest temperatures for so early in the year, including the cities of Chicago, Minneapolis, Indianapolis, Milwaukee, and Lansing. Temperature records for these cities go back as far as 1863. Perhaps the most extraordinary record was set in Traverse City, Michigan, which hit 81°F--a temperature 42°F above the average high for the date, and four degrees warmer than any previous day so early in the year. Records go back to 1897 in the city.


Figure 1. Spring has arrived early in Sherrard, Illinois, and much of the Midwest, thanks to a record-breaking March heat wave. Image credit: wunderphotographer JourneysEnd.

Major airports that set all-time heat records yesterday

Chicago, Illinois hit 81°F; the warmest it's ever been this early in the year, going back to 1872, and 35°F above average. This ties the record set on March 12, 1990.

Springfield, Illinois hit 83°F, the warmest it's ever been this early in the year, going back to 1879, and 32°F above average. This ties the record of 83°F on March 13, 1918.

Rockford, Illinois hit 79°F, the warmest it's ever been this early in the year, going back to 1893, and 33°F above average. Previous record: 78°F on March 7, 2000.

Peoria, Illinois hit 81°F, the warmest it's ever been this early in the year, going back to 1883, and 31°F above average. Previous record: 80°F on March 12, 1990.

Minneapolis, Minnesota hit 73°F, the warmest it's ever been this early in the year, going back to 1872, and 33°F above average. This ties the 73°F reading of March 7, 2000.

Grand Rapids, Michigan hit 80°F, the warmest it's ever been this early in the year, going back to 1892, and 37 degrees above average. Previous record: 78°F on March 8, 2000.

Muskegon, Michigan hit 77°F, the warmest it's ever been this early in the year, going back to 1896, and 35°F above average. Previous record: 73°F on March 8, 2000.

Traverse City, Michigan hit 81°F, the warmest it's ever been this early in the year, going back to 1897, and 42°F above average. Previous record: 77°F on March 7, 2000.

Lansing, Michigan hit 79°F, the warmest it's ever been this early in the year, going back to 1863, and 36°F above average. This ties the record of 79°F on March 8, 2000.

Indianapolis, Indiana hit 81°F, the warmest it's ever been this early in the year, going back to 1871, and 30°F above average. Previous record: 80°F on March 8, 1974 and March 13, 2007.

South Bend, Indiana hit 81°F, the warmest it's ever been this early in the year, going back to 1893, and 35°F above average. Previous record: 80°F on March 8, 2000.

Evansville, Indiana hit 82°F, the warmest it's ever been this early in the year, going back to 1871, and 25°F above average. This ties the record of 82°F set on March 10, 1990.

Milwaukee, Wisconsin hit 78°F, the warmest it's ever been this early in the year, going back to 1869, and 36°F above average. Previous record: 77°F on March 7 and 8, 2000.

Madison, Wisconsin hit 78°F, the warmest it's ever been this early in the year, going back to 1869, and was 36°F above average. Previous record: 77°F on March 8, 2000.

Green Bay, Wisconsin hit 75°F, the warmest it's ever been this early in the year, going back to 1886, and 37°F above average. Previous record: 74°F on March 8, 2000.

Dubuque, Iowa hit 75°F, the warmest it's ever been this early in the year, going back to 1874, and 37°F above average. This ties the 75°F reading of March 12, 1990.

Data for the previous records was taken from NOAA's National Climatic Data Center (NCDC).

Why the record early-season warmth?
The unusual warmth is due to a loop in the jet stream that has created a large upper-level ridge of high pressure that is stuck in place over the Eastern U.S.--a phenomenon known as a "blocking pattern." Since the jet stream acts as the boundary between cold air to the north and warm air to the south, and the large loop in the jet places its axis far to the north of the eastern U.S., summer-like warmth has developed over the eastern half of the U.S. Conversely, colder than average temperatures have developed over the western third of the U.S. behind the southwards-dipping loop of the jet stream. There are at least three large-scale patterns working together right now to create an unusually strong high-pressure ridge over the eastern half of the U.S.:

1) La Niña. The on-going La Niña event in the Eastern Pacific has weakened considerably over the past month, but ocean temperatures there are still cool enough to affect the jet stream pattern, favoring high pressure and warm temperatures over the Eastern U.S., and low pressure and cold temperatures over the Western U.S.

2) The Madden-Julian Oscillation( MJO). The MJO is a 2-month cycle of thunderstorm activity that travels west to east along the Equator. The MJO is currently in phase with La Niña, and is helping create warmer temperatures over the Eastern U.S.

3) The North Atlantic Oscillation (NAO.) The NAO is in its positive phase, which means the difference in pressure between the Icelandic Low and the Azores High is stronger than usual. This tends to increase the jet stream winds and keeps the jet from sagging southwards over the Eastern U.S.

While the blocking pattern responsible for the heat wave is natural, it is improbable that the intensity of the heat would have been so great unless we were in a warming climate. Climate scientist Dr. James Hansen has posted an interesting (as yet unpublished) paper discussing how the odds of such extreme heat events have shifted in recent years. I plan to discuss these concepts in more detail next week.


Figure 2. Predicted high temperatures for Thursday, March 15, 2012 over much of the Midwest are more typical of June than March.

The forecast
The summer-like heat continues today over the Midwest, with the greatest departures from average (30°+) expected over Wisconsin, Iowa, Illinois, Indiana, and Michigan. This area of 30°+ above average temperatures will expand to stretch from South Dakota to New York on Sunday and Monday, then gradually shift eastwards, extending from Wisconsin to Maine by Wednesday. The jet stream loop is predicted to grow more pronounced this weekend, and reach a truly extreme configuration on Monday and Tuesday. On those days, the predicted strength of the upper-level ridge of ridge pressure along the northern tier of states, from Wisconsin to Maine, will be typical of what we see at the height of summer, during July and August. The GFS and ECMWF models are predicting the height at where a pressure of 500 mb is found will range between 5760 - 5800 meters on those days--7% higher than the typical mid-March 500 mb heights of 5460 meters. Record-breaking summer-like temperatures will last until at least Friday, March 23, for much of the Midwest and Northeast U.S.

Extreme jet stream patterns like this often lead to tornado outbreaks in the Midwest, at the boundary of where warm, moist air flowing north from the Gulf of Mexico collides with cold, dry air flowing south. Cold dry air aloft, combined with warm, moist air at the surface, makes the atmosphere unstable, since air rising in thunderstorm updrafts will be less dense than the surroundings, allowing the air to accelerate upwards and increase the intensity of the thunderstorm. This will be the case on Sunday, when NOAA's Storm Prediction Center has highlighted a potential risk area for severe weather from Texas northwards through Nebraska. Fortunately, the winds of the jet stream are expected to blow almost due south to north over the region by Monday, which may limit the amount of cold air aloft that can overrun the warm air at the surface, resulting in a more stable atmosphere and a reduced chance of severe weather compared to Sunday.

Jeff Masters

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in bloom today (TroyA2)
in bloom today

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Quoting TheOnlyBravesFan:


Ummm okay. People of Dexter, I wish I could help you out, but since you help contribute to global warming, I can't.

(sarcasm on btw)

It's not globally-warmed over just michigan southward... the air to the north is cool enough to cause hail to form.


I disagree. An airmass this warm in mid-March is simply not possible in the absence of a high-CO2 atmosphere. The duration and extent of this air mass is unprecedented. Temperatures in southeast Michigan were in the mid to upper 70s, with dewpoints in the lower 60s. These temperatures and humidity levels, more characteristic of June than March, combined to produce extreme instability.
Member Since: September 8, 2011 Posts: 8 Comments: 245
Weather Channel just showed a picture with damage probably borderline EF3/EF4
Member Since: February 11, 2012 Posts: 84 Comments: 8032
Member Since: Posts: Comments:
last of the visible images

Member Since: July 15, 2006 Posts: 178 Comments: 55972
Quoting TheOnlyBravesFan:


Dynamics weren't right for tornadoes apparently. Even so, I'm not sure this warrants a moderate, we've only had 7-10 tornado warnings total for 3-5 seperate possible tornadoes. The total number of storms seems to fit with a higher-end slight to me. These people are humans, btw, they won't get everything right.


That is right. Few in number but some of them have been very strong.This shows that when SPC issues a slight risk,people in the area have to pay very close attention to what is going on with the weather.
Member Since: Posts: Comments:
B-roll, from Citizens coming in now

Uploaded by treetownsound on Mar 15, 2012


Taped at Hudson Mills Metro Park in Dexter about 5:30PM on March 15th by Matthew Altruda from Tree Town Sound on Ann Arbor's 107.One FM. http://www.treetownsound.com

caution, Foul Language

Member Since: Posts: Comments:
Quoting ClimateChange:
These tornadoes are a direct result of the unnatural, globally-warmed atmosphere present over southeast Michigan this afternoon. If people want to see the effects of climate change, look no further than Dexter, Michigan.


Ummm okay. People of Dexter, I wish I could help you out, but since you help contribute to global warming, I can't.

(sarcasm on btw)

It's not globally-warmed over just michigan southward... the air to the north is cool enough to cause hail to form.
Member Since: January 30, 2012 Posts: 10 Comments: 224
Quoting hurricanehunter27:
It's back. 0_0


Strongest all day now.

It's like a compeition between these two storms. One will strengthen and produce a strong tornado then weaken. Then the other will strengthen and produce a strong tornado.
Member Since: July 6, 2010 Posts: 113 Comments: 32802
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.


They always have that caveat, so never assume it wont happen.
Member Since: Posts: Comments:
Member Since: Posts: Comments:
It's back. 0_0

Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting TropicalAnalystwx13:

ADDITIONALLY...A DISTINCT SUPERCELL HAS FORMED IN WASHTENAW COUNTY
NEAR A SURFACE LOW NOTED NEAR LANSING...WHERE SEVERAL OF THE
AFOREMENTIONED CONFLUENCE ZONES INTERSECT. HERE...ALTHOUGH DEEP
LAYER SHEAR VALUES REMAIN SOMEWHAT ON THE LOWER THRESHOLDS FOR
SUPERCELL FORMATION...LOCAL ENHANCEMENTS TO LOW-LEVEL SRH VALUES IN
ADDITION TO FAVORABLE THERMODYNAMICS HAVE COMPENSATED SUFFICIENTLY
AND AN ISOLATED TORNADO CANNOT BE RULED OUT. ADDITIONALLY...AN AXIS
OF 60S F DEW POINTS REMAINS OVER THIS AREA...WHICH WILL CONTINUE TO
BE SUPPORTIVE OF VIGOROUS UPDRAFTS GIVEN THE STEEP LOW-MID LEVEL
LAPSE RATE ENVIRONMENT NOTED ON THE 18Z DETROIT SOUNDING.

Thanks much
Member Since: November 6, 2010 Posts: 12 Comments: 8465
Quoting Tropicsweatherpr:
My question about this severe activity is why SPC didn't have a Moderate Risk for today,but instead had a Slight Risk?


Dynamics weren't right for tornadoes apparently. Even so, I'm not sure this warrants a moderate, we've only had 7-10 tornado warnings total for 3-5 seperate possible tornadoes. The total number of storms seems to fit with a higher-end slight to me. These people are humans, btw, they won't get everything right.
Member Since: January 30, 2012 Posts: 10 Comments: 224
Quoting TropicalAnalystwx13:
Dr. Forbes is now saying "at least EF3".
At least EF3 so possible EF4?
Member Since: July 22, 2010 Posts: 1 Comments: 3852
The southern tornadic storm's rotation is ramping up again, and the northern one is bulking up, perhaps to make another tornado soon. several other storms may need to be monitored.

Cloud tops in excess of 50,000 feet according to my GRlevel2 trial.
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Dr. Forbes is now saying "at least EF3".
Member Since: July 6, 2010 Posts: 113 Comments: 32802
These tornadoes are a direct result of the unnatural, globally-warmed atmosphere present over southeast Michigan this afternoon. If people want to see the effects of climate change, look no further than Dexter, Michigan.
Member Since: September 8, 2011 Posts: 8 Comments: 245
Quoting KEEPEROFTHEGATE:
iam not the doc but this type of setup is like a late spring early summer setup where you have warmer rising air daytime heating over inland regions with a cold sink over the lakes which creates onshore breezes which undercuts the warmer air forcing it up and triggering the lake breeze effect type thunderstorm activity we are seeing here

Thanks for the info much appreciated
Member Since: November 6, 2010 Posts: 12 Comments: 8465
Quoting GeorgiaStormz:


yah i saw some ( including the perfect hook echo).
I wish some one had the supercells whole life.
Lucky you I happen to have it :). Ill try to make a .gif for you.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting Tropicsweatherpr:
My question about this severe activity is why SPC didn't have a Moderate Risk for today,but instead had a Slight Risk?

Conditions aren't favorable enough for a Moderate risk. I could have seen them issuing a 30% hail and maybe a 2% tornado, but that still would not have warranted a Moderate risk.
Member Since: July 6, 2010 Posts: 113 Comments: 32802
www.myfoxdetroit.com LIVE
Member Since: Posts: Comments:
Quoting MAweatherboy1:

Just check the last 2-3 pages of comments :)


yah i saw some ( including the perfect hook echo).
I wish some one had the supercells whole life.
Member Since: Posts: Comments:
Quoting Tropicsweatherpr:
My question about this Tronadic activity is why SPC didn't have a Moderate Risk for today,but instead had a Slight Risk?

Becuase these storms were never supposed to happen
Member Since: February 11, 2012 Posts: 84 Comments: 8032
246 nymore "I know about cement and concrete very well, I also know the types of cement. Technically I could be pumping water, aggregate, cement, plasticizers, water reducers, fly ash, retarders, fiber mesh, accelerators should I continue. You would just call it concrete."

No, you would.
Everybody else would call it a cement truck. Ya pour the cement, then wash the mixer out with water.
If you wait too long before washing, ya get concrete in the mixer. Then ya get yelled at before being ordered to hammer and chisel it out.
The only "concrete truck" that I know of is called a dump truck.
Nearly the same as the difference between dough and bread, except ya hafta add heat to cook the dough while cement "cooks"/cures itself.
A cement and aggregate and water mixture is called cement while it's still wet, until it's cured beyond plasticity. In (subconcious) recognition that whatever gets stuck in it is gonna be "glued" to the resulting mass after drying
Concrete is created when the cement cures&dries.

Ya pour, level, and finish cement. Ya either drill, grind, cut, sledge, or jackhammer concrete.
You cement in a sign post or a fence post. If you start with concrete, it's best to have straps or bolts already cemented into it to tie your post to the concrete.
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Quoting Tropicsweatherpr:
My question about this Tronadic activity is why SPC didn't have a Moderate Risk for today,but instead had a Slight Risk?
Lol no real reason to believe tornadoes would occur today. Not even a tornado risk was issued by the SPC.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting nigel20:

DR. Masters, what do you think is causing these tornadoes?

ADDITIONALLY...A DISTINCT SUPERCELL HAS FORMED IN WASHTENAW COUNTY
NEAR A SURFACE LOW NOTED NEAR LANSING...WHERE SEVERAL OF THE
AFOREMENTIONED CONFLUENCE ZONES INTERSECT. HERE...ALTHOUGH DEEP
LAYER SHEAR VALUES REMAIN SOMEWHAT ON THE LOWER THRESHOLDS FOR
SUPERCELL FORMATION...LOCAL ENHANCEMENTS TO LOW-LEVEL SRH VALUES IN
ADDITION TO FAVORABLE THERMODYNAMICS HAVE COMPENSATED SUFFICIENTLY
AND AN ISOLATED TORNADO CANNOT BE RULED OUT. ADDITIONALLY...AN AXIS
OF 60S F DEW POINTS REMAINS OVER THIS AREA...WHICH WILL CONTINUE TO
BE SUPPORTIVE OF VIGOROUS UPDRAFTS GIVEN THE STEEP LOW-MID LEVEL
LAPSE RATE ENVIRONMENT NOTED ON THE 18Z DETROIT SOUNDING.
Member Since: July 6, 2010 Posts: 113 Comments: 32802
Quoting TropicalAnalystwx13:

Well I'm pretty sure they didn't know it at the time and you cannot help but too when it's the first time seeing your tornado. Your sanity disappears. =P
Have to admit this could be a high end EF-3. One house on Fox 2 was completely leveled.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
My question about this severe activity is why SPC didn't have a Moderate Risk for today,but instead had a Slight Risk?
Member Since: Posts: Comments:
Quoting hurricanehunter27:
IKR, seems more like a actor than a actual met. That may be because the Atlanta and Alabama met is so good I'v developed high standards.


True that... even the "worst" mets in Atlanta are miles better than him in my opinion.
Member Since: January 30, 2012 Posts: 10 Comments: 224
Quoting hurricanehunter27:
Cause the seem to be cheering while its destroying houses and possibly killing people.

Well I'm pretty sure they didn't know it at the time and you cannot help but too when it's the first time seeing your tornado. Your sanity disappears. =P
Member Since: July 6, 2010 Posts: 113 Comments: 32802
Quoting nigel20:

DR. Masters, what do you think is causing these tornadoes?
iam not the doc but this type of setup is like a late spring early summer setup where you have warmer rising air daytime heating over inland regions with a cold sink over the lakes which creates onshore breezes which undercuts the warmer air forcing it up and triggering the lake breeze effect type thunderstorm activity we are seeing here
Member Since: July 15, 2006 Posts: 178 Comments: 55972
Quoting TropicalAnalystwx13:

Why??
Cause the seem to be cheering while its destroying houses and possibly killing people.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting TheOnlyBravesFan:
Man, tornadoes from "summer-like" storms.

That meteorologist from Channel2 Fox in Detroit isn't impressive, kinda tiring listening to him.
IKR, seems more like a actor than a actual met. That may be because the Atlanta and Alabama met is so good I'v developed high standards.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting hurricanehunter27:
The people video taping this video anger me greatly.

Why??
Member Since: July 6, 2010 Posts: 113 Comments: 32802
Quoting GeorgiaStormz:
If u are wondering where these storms came from, it is because i left my computer. Interesting things always happen when i am gone.

Does anybody have the radar images?

Just check the last 2-3 pages of comments :)
Member Since: February 11, 2012 Posts: 84 Comments: 8032
Quoting TropicalAnalystwx13:
The people video taping this video anger me greatly.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Man, tornadoes from "summer-like" storms.

That meteorologist from Channel2 Fox in Detroit isn't impressive, kinda tiring listening to him.
Member Since: January 30, 2012 Posts: 10 Comments: 224
If u are wondering where these storms came from, it is because i left my computer. Interesting things always happen when i am gone.

Does anybody have the radar images?
Member Since: Posts: Comments:
Member Since: July 6, 2010 Posts: 113 Comments: 32802
.A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL LAPEER COUNTY
UNTIL 730 PM EDT...

AT 649 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR COLUMBIAVILLE...MOVING EAST AT 15 MPH.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
Quoting JeffMasters:
Looks like scattered EF-2 damage in Dexter, 8 miles west of Ann Arbor, as per helicopter video from

http://www.myfoxdetroit.com/generic/news/live_str eam_2

Jeff Masters

EF-2 damage on a day with almost no chance for a tornado. I'm speechless.
Member Since: February 11, 2012 Posts: 84 Comments: 8032
Quoting hurricanehunter27:
Going to stick with my low end EF-3 second floor of that house is gone.
Nvm, possibly high end EF-3 one house is just gone.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
658 PM EDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
NORTHEASTERN LENAWEE COUNTY IN SOUTHEAST MICHIGAN...
MONROE COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 745 PM EDT

* AT 656 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHEAST OF BRITTON...OR 6 MILES
SOUTHWEST OF MILAN...AND MOVING EAST AT 35 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
AZALIA AND DUNDEE AROUND 705 PM EDT.
OAKVILLE AROUND 710 PM EDT.
MAYBEE AROUND 715 PM EDT.
SCOFIELD AROUND 720 PM EDT.
CARLETON AND MONROE AROUND 730 PM EDT.
NEWPORT AROUND 735 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
TEMPERANCE... PETERSBURG... MONROE...
MAYBEE... LUNA PIER... LAMBERTVILLE...
IDA... DUNDEE... DEERFIELD...
CARLETON... BRITTON...
Member Since: June 1, 2010 Posts: 0 Comments: 175
in the last hour temps outside my backdoor on the big dial have dropped from 68f to 48f or 19c to 9c thats a 20 degree drop in just over an hour strange
Member Since: July 15, 2006 Posts: 178 Comments: 55972
Quoting JeffMasters:
Looks like scattered EF-2 damage in Dexter, 8 miles west of Ann Arbor, as per helicopter video from

http://www.myfoxdetroit.com/generic/news/live_str eam_2

Jeff Masters

DR. Masters, what do you think is causing these tornadoes?
Member Since: November 6, 2010 Posts: 12 Comments: 8465
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
555 PM CDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN SANGAMON COUNTY IN CENTRAL ILLINOIS...

* UNTIL 645 PM CDT.

* AT 550 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP
TO TENNIS BALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS
STORM WAS LOCATED NEAR WAVERLY...OR 10 MILES NORTHWEST OF VIRDEN...
AND MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
LOAMI...AUBURN...LOWDER AND THAYER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
Member Since: June 1, 2010 Posts: 0 Comments: 175
Quoting JeffMasters:
Looks like scattered EF-2 damage in Dexter, 8 miles west of Ann Arbor, as per helicopter video from

http://www.myfoxdetroit.com/generic/news/live_str eam_2

Jeff Masters
Going to stick with my low end EF-3 second floor of that house is gone.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
That cell south of Ann Harbor is carrying debris. It appears to have touched down long enough to pull up some major material. That's not hail swirling around and around.
Member Since: Posts: Comments:
Got another one...

AT 649 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR COLUMBIAVILLE...MOVING EAST AT 15 MPH.
Member Since: July 6, 2010 Posts: 113 Comments: 32802
Quoting hurricanehunter27:
Yah Dexter seems to have EF3 damage.

Yeah, low-end EF3 or high-end EF2.
Member Since: July 6, 2010 Posts: 113 Comments: 32802
393. JeffMasters (Admin)
Looks like scattered EF-2 damage in Dexter, 8 miles west of Ann Arbor, as per helicopter video from

http://www.myfoxdetroit.com/generic/news/live_str eam_2

Jeff Masters

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