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Heavy Rain Threat 7/21-7/24


A-L-E-K

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0151 AM HEAVY RAIN OHARE AIRPORT 41.98N 87.90W

07/23/2011 M2.34 INCH COOK IL ASOS

MEASURED RAINFALL OF 2.34 INCHES BETWEEN 1251 AM AND 151

AM OBSERVATIONS.

Pretty impressive.

Add on 1.98 from 151 to 221

KORD 230721Z 34011G20KT 1/2SM R14R/1200V4000FT +TSRA FG BKN003 BKN010 OVC035CB 22/22 A3006 RMK AO2 PK WND 33026/0710 PRESRR CONS LTGICCCCG OHD AND ALQDS CB OHD AND ALQDS MOV SE P0198

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Pretty impressive.

Add on 1.91 from 151 to 221

KORD 230721Z 34011G20KT 1/2SM R14R/1200V4000FT +TSRA FG BKN003 BKN010 OVC035CB 22/22 A3006 RMK AO2 PK WND 33026/0710 PRESRR CONS LTGICCCCG OHD AND ALQDS CB OHD AND ALQDS MOV SE P0198

Well, the daily record (2.79"/2010) is already broken.

Another cluster forming in E. Iowa...

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FML this isn't good...we needed a droughtbuster. I guess I should be careful for what I wish for. I have stayed up just to monitor things as the flooding is starting to get severe here. The Edens between Tower and Lake is completely flooded out in both directions and many local roadways are in the area as well. Since the deluge started, we have received 4.84 inches of rain as per weatherbug. That is on top of the inch we got this morning and with redevelopment in Iowa, this could be a near record breaking event for the northern suburbs/north side of the city. Hang tight guys.

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FML this isn't good...we needed a droughtbuster. I guess I should be careful for what I wish for. I have stayed up just to monitor things as the flooding is starting to get severe here. The Edens between Tower and Lake is completely flooded out in both directions and many local roadways are in the area as well. Since the deluge started, we have received 4.84 inches of rain as per weatherbug. That is on top of the inch we got this morning and with redevelopment in Iowa, this could be a near record breaking event for the northern suburbs/north side of the city. Hang tight guys.

Not saying there will be a repeat but radar right now is a little reminiscent of that event last year that dumped like 9" at Midway.

Definitely starting to feel more and more like that flood event from last summer.. July I think?

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Better question, what's the most that has fallen in an hour at ORD

KORD 230741Z 35010KT 1SM R14R/4000VP6000FT +TSRA BR FEW001 BKN006 OVC035CB 22/22 A3002 RMK AO2 PK WND 33026/0710 CONS LTGICCCCG OHD AND ALQDS CB OHD AND ALQDS MOV SE P0306

3.06" in 50 minutes.

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Better question, what's the most that has fallen in an hour at ORD

KORD 230741Z 35010KT 1SM R14R/4000VP6000FT +TSRA BR FEW001 BKN006 OVC035CB 22/22 A3002 RMK AO2 PK WND 33026/0710 CONS LTGICCCCG OHD AND ALQDS CB OHD AND ALQDS MOV SE P0306

3.06" in 50 minutes.

That one i'm not sure about.

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Just went out and checked the gauge. We got another 1.53" from 1:30-2:30am, putting the 24 hour total at 3.38". It's dry and calm now, but there is even more heavy stuff developing west of Waterloo. It's moving east now, but so far tonight everything has been shifting/building southward even as the cells move eastward.

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KORD 230751Z 33011G22KT 1 3/4SM +TSRA BR FEW001 BKN010 OVC035CB 22/21 A3002 RMK AO2 PK WND 33026/0710 SLP159 FRQ LTGICCCCG OHD AND ALQDS CB OHD AND ALQDS MOV SE P0319 T02170211

3.19" in an hour I would bet there is some big time flash flooding out there now.

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So far we are at 5.49 on this calender day and 6.78 in the last 24 hours. Really impressive stuff there.

6.37" ...0.27" away from the greatest calender day record.

KORD 230832Z 34008KT 2 1/2SM +TSRA BR BKN015 OVC035CB 22/21 A3002 RMK AO2 VIS 1 3/4V4 FRQ LTGICCCCG OHD CB OHD MOV SE P0088

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6.37" ...0.27" away from the greatest calender day record.

KORD 230832Z 34008KT 2 1/2SM +TSRA BR BKN015 OVC035CB 22/21 A3002 RMK AO2 VIS 1 3/4V4 FRQ LTGICCCCG OHD CB OHD MOV SE P0088

That will be broken, probably within the hour. The bigger question does the greatest 24 hour rainfall record get broken, and seeing as there is more convection to the west and more convection in the forecast for today and tonight. I am going to say yes.

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That will be broken, probably within the hour. The bigger question does the greatest 24 hour rainfall record get broken, and seeing as there is more convection to the west and more convection in the forecast for today and tonight. I am going to say yes.

The first record is a lock.

We'll see how the second one goes...

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6.37" ...0.27" away from the greatest calender day record.

KORD 230832Z 34008KT 2 1/2SM +TSRA BR BKN015 OVC035CB 22/21 A3002 RMK AO2 VIS 1 3/4V4 FRQ LTGICCCCG OHD CB OHD MOV SE P0088

New record... 6.74"

KORD 230851Z 06005KT 1 3/4SM R14R/5500VP6000FT +TSRA BR OVC015CB 21/21 A3003 RMK AO2 SLP164 FRQ LTGICCCCG OHD CB OHD MOV SE P0125 60678 T02110206 51044

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GREEN LAKE-FOND DU LAC-SHEBOYGAN-DODGE-WASHINGTON-OZAUKEE-

INCLUDING THE CITIES OF...BERLIN...FOND DU LAC...SHEBOYGAN...

BEAVER DAM...WEST BEND...PORT WASHINGTON

417 AM CDT SAT JUL 23 2011

NOW

THUNDERSTORMS IN NORTHEAST DODGE...SOUTHERN FOND DU LAC AND

NORTHERN WASHINGTON COUNTIES WILL CONTINUE TO SPREAD EASTWARD INTO

SHEBOYGAN AND OZAUKEE COUNTIES THROUGH 6 AM. EXPECT HEAVY

DOWNPOURS AND FREQUENT LIGHTNING. THE THUNDERSTORMS ARE FAIRLY

SLOW MOVING...WHICH COULD LEAD TO A QUICK 1 TO 2 INCHES OF RAIN.

Euro nailed this little area popping up perfectly with a tiny bulls eye.. pretty sick.. yet it misses the heavies in Illinois.

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Well, this thread has delivered, i was out and about but checking in on my phone all night, but we really got smoked for a period there with some serious bangers, some of my favorite weather, deep convection, little chance of severe. Our drought lasted about 2 days and the despite the initial flash flood, the ground is soaking things up nicely. Looks like another band of showers with some intense convection will push through before the llj retreats for the day. After that, things get less clear as the front has become muddy and there's a lot of mesoscale features in play, but another round tonights, maybe even two are possible. .

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NWUS53 KLOT 231219

LSRLOT

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

719 AM CDT SAT JUL 23 2011

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0700 AM HEAVY RAIN OHARE AIRPORT 41.98N 87.90W

07/23/2011 M8.20 INCH COOK IL ASOS

24-HOUR TOTAL. 6.91 INCHES BETWEEN 100 AM AND 700 AM.

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Well, this thread has delivered, i was out and about but checking in on my phone all night, but we really got smoked for a period there with some serious bangers, some of my favorite weather, deep convection, little chance of severe. Our drought lasted about 2 days and the despite the initial flash flood, the ground is soaking things up nicely. Looks like another band of showers with some intense convection will push through before the llj retreats for the day. After that, things get less clear as the front has become muddy and there's a lot of mesoscale features in play, but another round tonights, maybe even two are possible. .

You've been in the zone pretty much all spring and summer and this kind of stuff is your bread & Butter forecasting it seems. MVP

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