Daily Weather Maps

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Ptarmigan
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Here is a website where you can see weather maps from the past, up to 1871. Here is what I found from the maps.

May 1929 Flood is caused by a slow moving low pressure over Texas.
December 1935 Flood is caused by a low pressure system that travels northwestward.
July 1942 Flood in Smethport, Pennsylvania has a stationary front draped over the Great Lakes. Likely a mesoscale convective complex (MCC) or mesoscale convective system (MCS) developed.
June 1973 Flood is caused by a low pressure system over Texas.
June 1976 Flood is likely caused by mesoscale convective complex (MCC) or mesoscale convective system (MCS) from a passing cool front.
April 1979 Flood shows a low pressure in West Texas. Probably caused by a mesoscale convective complex (MCC) or mesoscale convective system (MCS).
May 1989 Flood is caused by low pressure system that originate in the Pacific.
March 1992 Flood is caused by Pacific front and warm front over Texas.

Hurricane Carla is very large in the map.

1871-2002
http://docs.lib.noaa.gov/rescue/dwm/dat ... _maps.html

To view the 1871-2002 maps, you have to use DjVu.
http://www.celartem.com/en/download/djvu.asp#win

Here is the 2003-Present Map
http://www.hpc.ncep.noaa.gov/dailywxmap/index.html

In regards to the June 1976 flood, someone made a post about it.
My memory of Houston first paying attention to flooding issues was the flood of 1976, the first one to flood the Medical Center.
It was in June, and was a day, like so many in Houston, where the weathermen totally missed the call- they said a 20% chance of rain was likely.
My brother floated a mattress from south of the Rice Village to Methodist Hospital that day.
I was stuck at Audio Concepts, where we watched cars disappearing under SW Freeway at Greenbriar.
A friendly lawyer opened up his bar, and we felt very well comforted against the storm.
The water drained by 10:30PM.
The improvements and defenses against that 1976 storm were what failed during Allison in 2001, 25 years later.
And today, in SW Houston, we are having our third major rain event in just over two weeks.
Eric, I think the drought is now officially over.
If I understand the extent of this, even the upper Guadalupe is getting recharged. I heard Kerrville was facing flash floods, so the Guadalupe above Canyon Lake will be flowing nicely, and the lake rising some.

Posted by: hunter at April 27, 2009 08:21 PM
Looks like the June 1976 event was not forecasted to rain that time.

http://blogs.chron.com/sciguy/archives/ ... st_ni.html
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