SFGAmWorld.com
Untitled Document
Park Information
Latest News
Great America
Roller Coasters
Rides
Hurricane Harbor
Water Slides
Water Attractions
Advertisement

Opening Weekend Weather (As of 4/29)

Talk about anything that has to do with Six Flags Great America and Hurricane Harbor here.
Postby w00dland on April 28th, 2004, 3:42 pm
Tell me about it, just dress for the weather! :D
Top 5 wood-5-Goliath 4-Ravine Flyer II 3-Phoenix 2-Voyage 1-El Toro
Top 5 Steel- 5-Velocicoaster 4- Maverick 3- Fury 325 2-Steel Vengeance 1-X2
Coaster Count: 444
w00dland
Moderator

User avatar
 
Posts: 4630
Joined: January 29th, 2004, 2:36 pm
Location: Winter Haven, FL

Postby Coaster_Chick on April 28th, 2004, 4:45 pm
planea380 wrote:Nooooo, I got really sick from mothers day.


oh gosh...that day was awful! I got sooooo sick...it was so rainy, windy and cold. blech.
~Theresa~
*Undercover Line Jumper Ejector*
Trips in '05: 2 Next up: May 8
The Posse
Coaster_Chick

User avatar
 
Posts: 120
Joined: March 14th, 2003, 11:55 am
Location: Waukesha,Wisconsin

Postby coasterswimgurl12 on April 28th, 2004, 5:03 pm
I dont think I got sick on Mothers Day, but I got there a little late and only stayed an hour because they closed the park early...like around 5. But I got A LOT of ride time on Batman! :lol:
*~There's a light~*
*~In the darkness~*
*~Of everybody's life~*
coasterswimgurl12

User avatar
 
Posts: 766
Joined: March 13th, 2003, 8:44 pm
Location: Chicago,IL

Postby Aero737 on April 29th, 2004, 3:40 pm
My 42904-1900Z Forcast

Saturday-AM Showers. High of 50. Gusty north winds.
Hour By Hour
7AM-Rain. Temperatures near 49. NNW winds around 10mph. Chance of precip near 90%
10AM-Showers. Overcast. Winds turning North. Temperatures steady near 50. Chance of precip near 70%
12PM-Isolated showers. Overcast. NNE winds increasing to 20mph. Temperatures steady or slowly falling. Chance of precip 40%
6PM-Mostly cloudy. Temperature around 45. NNE winds gusty. Winds around 20 mph gusting above 30mph. Chance of precip 20%
Sunday- Cold and windy. NE winds around 15mph. Temperatures (AM 40 degrees, PM 50). Little chance of rain.

All these are my forcasts not copied from any site. All using the 42904-1200Z GFS.
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby ShortChilli on April 29th, 2004, 3:43 pm
Mother's Day last year was the best, except for the weather. My friend and I were eating pizza and it blew away!
ShortChilli

User avatar
 
Posts: 130
Joined: April 3rd, 2004, 5:31 pm
Location: Wilmington, Illinois

Postby Aero737 on April 29th, 2004, 3:55 pm
In case any of you were wondering how the weather was last year (Mothersday)

May 11th. High of 71 Low of 48. Average 24 hour temperature was 60 degrees. .18 inches of rain fell. The average wind speed was 24.7mph with a maximum sustained wind of 39mph out of the S. The peak gust was 53mph out of the SSE.


DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR

11 71 48 60 3 5 0 0.18 0.0 0 24.7 39 260 M M 10 18 53 260
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby rctfan1556 on April 29th, 2004, 5:04 pm
Saturday: Few showers. Highs in the low 50s and lows in the upper 30s.

Yes! Perfect weather, well as long as it doesn't prevent the rides from being open, there arn't crowds, and it doesn't rain all day.
This is where I would usually put stuff. Can't think of anything right now... =/
rctfan1556

User avatar
 
Posts: 674
Joined: April 16th, 2003, 7:37 pm
Location: My Location is secret. You can't haz! *Hides Location* *Hint: Follow the clues* ;D

Postby rctfan1556 on April 29th, 2004, 9:12 pm
I actully don't want it to rain now cause I want to enjoy opening
day without rain but if it does rain then oh well, that just means less crowds.
So I'll bring my coat and get a locker just in case.
This is where I would usually put stuff. Can't think of anything right now... =/
rctfan1556

User avatar
 
Posts: 674
Joined: April 16th, 2003, 7:37 pm
Location: My Location is secret. You can't haz! *Hides Location* *Hint: Follow the clues* ;D

Postby Aero737 on April 30th, 2004, 1:35 pm
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO IL
1245 PM CDT FRI APR 30 2004

.MORNING GRIDS...

SURFACE ANALYSIS SUGGEST WEAK BOUNDARD JUST NORTH OF IL/WI LINE AT
THIS TIME. PRECIP AREA TO THE SOUTH OF THIS BOUNDARY AND UNDER THE
INFLUENCE OF VORT MOVING ACROSS IL FROM THE SOUTHWEST. EXPECT
SHOWERS TO LINGER THROUGH EARLY MORNING UNTIL VORT PASSES THEN HAVE
A WINDOW OF DRY WX.

BOUNDARY TO THE NORTH EXPECTED TO SAG SOUTH DURING THE DAY AND
PROVIDE THE FOCUS FOR ADDITIONAL SHOWER/THUNDERSTORM DEVELOPMENT
THIS AFTERNOON. MODELS DIFFER ON LOCATION OF BOUNDARD AND SO ON MAX
TEMPS FOR THIS AFTERNOON VARING BY AS MUCH AS 10 DEGRES MODEL TO
MODEL WIHT FRONTAL POSITIONING FARTHER SOUTH. GIVEN SOUTHWESTERLY
UPPER FLOW ASSOCIATED WITH H5 TROUGH DONT FRONT TO PUSH TOO FAR
SOUTH AND MOST LIKELY JUST SOUTH OF CHI. NEXT WAVE MOVES ALONG
SIMILAR PATH FROM SOUTHWEST. UVV INCREASES DURING AFTERNOON/EVENING
WITH FRONT PROVIDING FOCUS FOR CONVECTION. SHOWERS APPEAR TO LINGER
IN MOST OF FORECAST AREA UNTIL H5 TROUGH SWINGS THROUGH THROUGH LATE
SATURDAY.

BROAD SURFACE RIDGE BUILDS BEHIND THIS SYSTEM AND KEEPS WX QUIET
THROUGH TUESDAY WHEN NEXT VORT SWINGS THROUGH NORTHERN BELT ACROSS
SOUTHERN CANADA. SURFACE LOW DEVELOPS IN SOUTHERN CANDADA MONDAY AND
DRAGS FRONT ACORSS UPPER MIDWEST TUESDAY TRIGGERING ROUND OF SHOWERS
AND POSSIBLE THUNDERSTORMS DURING THE DAY. REMAINDER OF FORECAST
CYCLE APPEARS DRY.

TEMPS SHOULD BE SLIGHTLY BELOW NORMAL DURING THIS PERIOD WITH
GENERAL NORTH/NORTHEAST FLOW BEHIND TWO SYSTEMS. RECOVERY IS SO BUT
TEMPS SHOULD BE BACK TO SEASONAL NORMALS LATE NEXT WEEK.


The system looks to be arriving earlier and earlier than initially thought.

Here is my 43004-1700Z Forcast for 50104-50204

Saturday
7AM- Scattered showers. Rain mainly south of Chicago. North gusty winds around 20-25mph with gusts over 35mph. Temperature around 48.
10AM-Sprinkles possible. North winds turning NE off the lake around 15mph. Temperature around 50.
3PM-NE winds. Mostly Cloudy. Temperatures around 50.
8PM- NE winds around 25mph with gusts possible over 40mph. Temperatures around 45. Mostly Cloudy turning Partly Cloudy.
Chance of precip during operating hours 75%

Sunday.
7AM- Light North winds. Cold. Temperatures around 45. Mostly Cloudy
10AM-Mostly Cloudy. Light variable winds. Temps around 50
3PM-Mostly to Partly Cloudy. North Winds Temps around 50
8PM-Partly Cloudy, clearing. North winds around 5 mph. Temps around 46
Chance of precip during operating hours 20%

There you have it, the forcast is impoving (or getting worse depending on who you are-Dave :P).

Next forcast will be around 500Z
[/quote]
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby Papas on April 30th, 2004, 2:37 pm
Notice it says it's supposed to rain in the morning and stop in the afternoon, just what youve all been wanting?

Anyway, whatevers fine with me it's nice to hear thats what its looking like but they're not always 100% right.
Papas

 
Posts: 1176
Joined: March 3rd, 2003, 5:31 pm

Postby raging badger on April 30th, 2004, 3:22 pm
It's nice to see some budding meteorologists here. I myself am a meteorologist up here in Madison, Wisconsin. Anyway I just checked some of the latest models and it's looking fairly good for opening weekend, albeit a bit on the cool side. There may be a few lingering showers when the park opens, but things should dry out as the day progresses. Sunday should be dry, but quite cool. A breeze right of the lake will probably keep Gurnee in the upper 40s to low 50s.
raging badger

User avatar
 
Posts: 27
Joined: March 12th, 2003, 5:06 pm
Location: Madison, WI

Postby Aero737 on April 30th, 2004, 3:55 pm
Well, It's nice to know that we have an acuall meteorologist on these forums. :D

If you have time, could you post some of your notes for the 1st? I always check the models first then use the NWS forcast discussion to check my forcasts. The models took quite a swing on Tuesday (well the GFS did) and I was hesitant to call for rain as most forcasts and previous model runs were still calling for nice weather.

As for the current model runs, it looks like they are really toning down the total possible precipitation. Most of the rain looks to be occuring south of us along the warmfront.
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby Do I Know You on April 30th, 2004, 4:02 pm
Yarr, I know what 043004 means, but I'm stumped as to what 1700Z is.
this is a signature
Do I Know You

User avatar
 
Posts: 2120
Joined: March 27th, 2003, 3:42 pm

Postby Aero737 on April 30th, 2004, 4:09 pm
1700Z is UTC (or zulu) time. It is a 24 hour clock that is based off of English time (one of their two timezones). They are 6 hours ahead of us during the summer and 5 hours ahead of us during the winter (Daylight savings time). So when you see 1700Z, subtract 6 and you get 1100. So it was written at 11 AM
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby Do I Know You on April 30th, 2004, 4:23 pm
Aye, that's what I thought.

EDIT: You wouldn't happen to have the weather for November 2nd last year, would you? I'd just like to compare that to tomorrow. If you don't, that's fine.
this is a signature
Do I Know You

User avatar
 
Posts: 2120
Joined: March 27th, 2003, 3:42 pm

Postby rctfan1556 on April 30th, 2004, 4:48 pm
raging badger wrote:It's nice to see some budding meteorologists here. I myself am a meteorologist up here in Madison, Wisconsin. Anyway I just checked some of the latest models and it's looking fairly good for opening weekend, albeit a bit on the cool side. There may be a few lingering showers when the park opens, but things should dry out as the day progresses. Sunday should be dry, but quite cool. A breeze right of the lake will probably keep Gurnee in the upper 40s to low 50s.

Sounds good! :D
The lingering showers should keep the crowds away during the morning.
This is where I would usually put stuff. Can't think of anything right now... =/
rctfan1556

User avatar
 
Posts: 674
Joined: April 16th, 2003, 7:37 pm
Location: My Location is secret. You can't haz! *Hides Location* *Hint: Follow the clues* ;D

Postby Aero737 on April 30th, 2004, 10:04 pm
Nov. 2nd.

High of 52 low of 48. Total precip .78 inches. Average wind speed 5mph from the NNE.

Other than having a bit less rain (out rain will be earlier on sat) and we will have gusty winds, the forcasts are somewhat similar.

DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR
2 55 48 52 7 13 0 0.78 0.0 0 5.0 16 20 M M 10 1 23 50
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby Galvan on April 30th, 2004, 10:15 pm
Well the Final Forecasts are in: And As of 10:15 pm on April 30th. the forecast calls for Overcast skies and showers likely in the morning up until 11am or so with overcast skies continuing throughout the day.
Image
Galvan
Moderator

User avatar
 
Posts: 3639
Joined: June 30th, 2003, 1:23 am
Location: Montgomery,IL

Postby mallclerks on May 1st, 2004, 12:01 am
10 Hours and park opens, wahoo! Lol!

Ill get about 6 hours of sleep, then 2-3 hour drive depending on traffic, once again, wahoo! :P
mallclerks

User avatar
 
Posts: 131
Joined: May 3rd, 2003, 6:00 pm
Location: Bourbonnais, ILL

Postby rctfan1556 on May 1st, 2004, 6:15 am
Well it is supposed to rain all day but hopefully that won't stop the rides from running and hopefully it won't rain at all except for in the morning till 11am.(slow down the crowds. :) )


Cya at the park! :D
This is where I would usually put stuff. Can't think of anything right now... =/
rctfan1556

User avatar
 
Posts: 674
Joined: April 16th, 2003, 7:37 pm
Location: My Location is secret. You can't haz! *Hides Location* *Hint: Follow the clues* ;D

Postby Aero737 on May 1st, 2004, 6:57 am
No, it's looking more and more like it wont rain at all. Most of the rain is in S. Illinois.
Aero737
The Mod Squad

User avatar
 
Posts: 3787
Joined: February 6th, 2003, 10:54 pm
Location: Beijing CHINA

Postby Iggy ACE on May 1st, 2004, 7:26 am
As of 7:20 a passing shower in the afternoon! Enjoy the day! High of 51 cooler by the lake!
Waiting to fill this space with something stupid to say!
Iggy ACE

User avatar
 
Posts: 360
Joined: January 15th, 2004, 12:22 pm
Location: Munster, IN. "IT'S PLAYTIME"

Postby rctfan1556 on May 1st, 2004, 8:06 am
aero737 wrote:No, it's looking more and more like it wont rain at all. Most of the rain is in S. Illinois.

Aight! That is good! :D
This is where I would usually put stuff. Can't think of anything right now... =/
rctfan1556

User avatar
 
Posts: 674
Joined: April 16th, 2003, 7:37 pm
Location: My Location is secret. You can't haz! *Hides Location* *Hint: Follow the clues* ;D

Postby Tek on May 1st, 2004, 8:50 am
Sadly all of your rain is prob making it this way. The only open window of no rain that we have is around 3-5pm

Derby is today, so I was looking forward to a nearly empty SFKK.

Oh well, I still plan on going, not like I'm a stranger to a poncho....too bad my poncho says PKI on it hehe
Tek

 
Posts: 66
Joined: April 7th, 2004, 8:57 pm
Location: Louisville, Kentucky

Previous

Return to Six Flags Great America Forum

Who is online

Users browsing this forum: Google [Bot] and 28 guests

Privacy Policy About Us Copyright Disclaimer E-Mail SFGAmWorld
COPYRIGHT - SFGAmWorld.com
All content and images on this site are Copyright 2001 - SFGAmWorld.com and may not be used without permission.
This is NOT the official site of Six Flags Great America, SFGAmWorld.com is not affilated or endorsed by Six Flags Great America.
SFGAmWorld.com does not make any guarantee on the accuracy of the information on this website and cannot be held responsible by the use of this information.
SIX FLAGS and all related indicia are trademarks of Six Flags Theme Parks Inc. ®, TM and © . The official Six Flags site can be found at SixFlags.com
BATMAN, SUPERMAN and all related characters and elements are trademarks of © DC Comics.
LOONEY TUNES and all related characters and elements are trademarks of and © Warner Bros. Entertainment Inc.©
The Wiggles Pty Ltd. SCOOBY-DOO and all related characters and elements are trademarks of and © Hanna-Barbera.