Gulf of Mexico disturbance may develop; Chris a hurricane; record Duluth flooding
An area of low pressure and heavy thunderstorms entering the Southern Gulf of Mexico is bringing sporadic heavy rains to Western Cuba and Mexico's Yucatan Peninsula, and winds of 20 - 25 mph to surrounding ocean areas. This disturbance will need to be watched for development as it drifts slowly northward at about 5 mph into the Central Gulf of Mexico by Saturday. The disturbance is poorly organized, and has only a modest area of heavy thunderstorms. Wind shear is a moderate to high 15 - 25 knots over the region. Ocean temperatures are 81 - 83°F in the Western Caribbean and Southern Gulf of Mexico, which is about 1°F above average, and plenty warm to support formation of a tropical storm.

Figure 1. Morning satellite image of the tropical disturbance entering the Southern Gulf of Mexico.
Forecast for Gulf of Mexico disturbance
Wind shear is predicted to remain in the moderate to high range through Friday. Water vapor satellite loops show a region of dry air over the Northern Gulf of Mexico; this dry air is probably too far away to significantly interfere with development. I expect we will see an increase in the disturbance's heavy thunderstorm activity today as a result of less interference from dry air. By Saturday, our two top models, the European model (ECMWF) and GFS, predict that wind shear could fall to the moderate range, 10 - 20 knots, which would potentially allow the disturbance to approach tropical depression status by Sunday. A trough of low pressure pushing off of the U.S. East Coast will be capable of grabbing the disturbance and accelerating it to the northeast on Sunday, as predicted by the GFS model, which takes the disturbance across Florida on Sunday, and into the waters off the coast of South Carolina by Monday. The GFS does not develop the disturbance while it is in the Gulf of Mexico, but suggests it could develop into a tropical or subtropical depression off the coast of South Carolina Monday or Tuesday. The latest ECMWF model run (00 UTC) predicts that this through will not be strong enough to pull the disturbance northeastwards across Florida, and the disturbance will instead linger in the Gulf of Mexico for many days, giving it time to develop into a tropical depression next week. The UKMET and NOGAPS models predict a more westward drift, with the disturbance affecting the Mexico/Texas border region 6 - 7 days from now. At this point, we can't rule out any location in the Gulf being affected by this system, though the Gulf coast of Florida has the highest probability of seeing impacts. NHC is giving the disturbance a 30% chance of developing into a tropical depression by Saturday morning. This is a reasonable forecast, and the odds will probably rise by Friday, and I give the disturbance a 50% chance of developing into a tropical depression by Monday morning.

Figure 2. Morning satellite image of Hurricane Chris.
Chris reaches hurricane strength; not a threat to land
Hurricane Chris has managed to intensify and form an eye-like feature surrounded by intense thunderstorms with very cold tops, despite the fact the storm is over cool waters of 22°C. NHC puts Chris at hurricane strength with 75 mph winds making it the first hurricane of the 2012 hurricane season. Chris attained hurricane strength unusually far to the north (41.1°N) for a June storm; only Hurricane One of 1893 was a June hurricane at a more northernly point (44°N) than Chris. Chris is headed northeastwards, out to sea, and will not trouble any land areas. Only twice before, in 1887 and 1959, has the third storm of the season formed earlier than June 20. Formation of three tropical storms so early in the year is not necessarily a harbinger of an active season; 1959 was close to average, with 12 named storms, 7 hurricanes, and 2 intense hurricanes (average is 11 named storms, 6 hurricanes, and 2 intense hurricanes.) Unusual levels of early season activity in the Caribbean and between Africa and the Lesser Antilles usually portends a very active hurricane season, but this year's storms have not formed in this region. Alberto, Beryl, and Chris all formed off the U.S. East Coast.

Figure 3. The St. Louis river upstream from Duluth, Minnesota reached its highest flood height on record this morning, 6.1' above flood stage. The river rose over ten feet in 24 hours. Image credit: NOAA.
Record flooding in Duluth, Minnesota
Flood waters have crested in Duluth, Minnesota this Thursday morning, and are slowly falling, in the wake of the city's all-time record 24-hour rainstorm. A series of "training" thunderstorms that followed the same path passed over a wide swath of Northern Minnesota between noon Tuesday and noon Wednesday, dropping 7.20" of rain on the city. According to wunderground's weather historian Christopher C. Burt, this far surpasses the previous 24-hour record rainfall for Duluth, the 5.79" that fell on August 22 - 23, 1978. Two rivers in the Duluth area, the Nemadji and St. Louis, hit their highest flood heights on record Thursday morning, causing destructive flooding. Sadly, major flooding occurred at the Duluth zoo, washing a seal into a neighboring street, and killing at least eleven zoo animals.
Jeff Masters
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FULL
Now that is funny!
Link
I agree, in fact the 70% maybe a little high right now for the next 48 hrs. I think we are seeing the exact same song and dance as yesterday. Convection along the trough is already puttering out and we have about half dozen swirls around one very broad area of low pressure.
I have no idea where this thing is going, but you don't see me posting percentages of different landfall scenarios
Yesterday there was one huge circulation, now you see one much smaller swirl already halfway to TX, and I'm waiting on the one SE of that one to get its own spin going.
I think the circ was just too big to be viable, had to split itself.
It's amazing to me the variables and countless possibilities that it takes for a cyclone to mature. What are we on day 7 or 8 watching this?? day 20 watching models showing this?
The vertical weather picture is what most don't see.
It's why I come here to learn
What's crazy with 96 is that she is acting like an upper level type of low with the plume of moisture to the east and mini vorticies firing here and there. The actual trough axis N. of the Yucatan just does not seem like where Debby wants to form. Time will tell.
I see 96L is giving everyone a headache.
This is what's left of Chris:
Plan of the Day
000
NOUS42 KNHC 221415
WEATHER RECONNAISSANCE FLIGHTS
CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
1015 AM EDT FRI JUN 22 2012
SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
VALID 23/1100Z TO 24/1100Z JUN 2012
TCPOD NUMBER.....12-035
I. ATLANTIC REQUIREMENTS
1. SUSPECT AREA (GULF OF MEXICO)
FLIGHT ONE -- TEAL 70 --
A. 23/1800Z
B. AFXXX 01AAA INVEST
C. 23/1615Z
D. 25.5N 888.5W
E. 23/1715Z TO 23/2130Z
F. SFC TO 10,000 FT
FLIGHT TWO -- TEAL 71 --
A. 24/1200,1800Z
B. AFXXX 0204A CYCLONE
C. 24/1015Z
D. 27.1N 88.5W
E. 24/1100Z TO 24/1800Z
F. SFC TO 10,000 FT
2. OUTLOOK FOR SUCCEEDING DAY: CONTINUE 6-HRLY FIXES.
3. REMARK: LOW LEVEL INVEST FOR 22/1800Z CANCELED
BY NHC AT 22/1230Z.
II. PACIFIC REQUIREMENTS
1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
2. SUCCEEDING DAY OUTLOOK.....NEGATIVE.
JWP
3. REMARK: LOW LEVEL INVEST FOR 22/1800Z CANCELED
BY NHC AT 22/1230Z.
BY NHC AT 22/1230Z.
1015 AM EDT FRI JUN 22 2012
SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
VALID 23/1100Z TO 24/1100Z JUN 2012
TCPOD NUMBER.....12-035
I. ATLANTIC REQUIREMENTS
1. SUSPECT AREA (GULF OF MEXICO)
FLIGHT ONE -- TEAL 70 --
A. 23/1800Z
B. AFXXX 01AAA INVEST
C. 23/1615Z
D. 25.5N 888.5W
E. 23/1715Z TO 23/2130Z
F. SFC TO 10,000 FT
FLIGHT TWO -- TEAL 71 --
A. 24/1200,1800Z
B. AFXXX 0204A CYCLONE
C. 24/1015Z
D. 27.1N 88.5W
E. 24/1100Z TO 24/1800Z
F. SFC TO 10,000 FT
2. OUTLOOK FOR SUCCEEDING DAY: CONTINUE 6-HRLY FIXES.
3. REMARK: LOW LEVEL INVEST FOR 22/1800Z CANCELED
BY NHC AT 22/1230Z.
Here is the NHC still shot (I can't post my hi-res vis loop but someone on here will)
Link
NNNOOOOOOOOOOOO
So whats this mean?
Wow thats alot of convection...
If that was in the US land mass that would be quite a large mess not to mention the attention it would get..
I wounder how much rain Cuba?Yuctan has already gotten from this..
Anyone have a precip. total?
It means today's Mission at 18Z to investigate 96L is cancelled.
In the short term I don't see this developing.
Probably not for another 24 hours.
The system must develop a dominate low level circulation before the models will be any good
Congrats. You should teach her to point at you and say, "OWNED!" as soon as possible.
It was a real time-saver in our house.
nogaps has it as a weak TS heading to Mexico.
SREF is crazy wow. Has it meandering. Then idk where it will take it, model run ended.
cmc has is close to hurricane and on the coastline of LA and on east to Panhandle of FL then it has it going over to TX.
How do you figure? All of the Gulf Coast is a possibility, and most models show 96 on a path toward Central Florida at the moment.
Yeah... they'll be gathered around pitchers of brew at Hooter's by noon..... cause they got scrubbed.
Cantore was in Houma for Gustav. Right smack in the middle of it.
wow so nola is safe to what storm surge?
I was saying that from early this morning.
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