My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
FLOOD01363
CWCB
>
Floodplain Documents
>
Backfile
>
1001-2000
>
FLOOD01363
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/23/2009 10:39:58 AM
Creation date
10/4/2006 9:57:58 PM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Title
Colorado High Plains Thunderstorm Systems - A Descriptive Radar-Synoptic Climatology
Date
6/1/1974
Prepared By
CSU
Floodplain - Doc Type
Educational/Technical/Reference Information
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
81
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
<br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />.., <br /> <br />35 <br /> <br />Several other results of the compilation in Table 5 support the <br /> <br />, importance of enhanced valley breezes in stimulating convection in <br /> <br />mountain hot spots. These results are: <br /> <br />1. Northward facing hot spots produced twice as many thunder- <br /> <br />storms as southward facing ones. <br /> <br />2. Hot spots with a mean elevation of 6500-7500 feet and a slope <br /> <br />in excess of 3.5 percent produced twice as many thundersto~s <br /> <br />as those with a lower or higher mean elevation. This suggests <br /> <br />that a crucial slope and transport distance of the moist air <br /> <br />could help determine the zones of active convective genesis <br /> <br />established by the valley breeze. <br /> <br />3. Hot spots which generated 25 or more thunderstorms, met the <br /> <br />above two criteria and Ivere within five miles dOlmstream of at <br /> <br />least a 10,000 foot ridge or mountain. This supports the <br /> <br />possibility of the valley breeze strength being enhanced by <br /> <br />the additional surface heating of the mountain or ridge, <br /> <br />I: <br /> <br />These results are not intended to define a set of criteria neces- <br /> <br />" <br />, <br />" <br />I; <br />l: <br /> <br />sary to insure a thunderstorm generation zone. They are strongly Sllp- <br /> <br />porti"e of such a possibility. However, the grid size of 45 km by <br /> <br />i <br />,I <br />I <br /> <br />30 km is qllite large compared to the cumulus cloud producing an <br /> <br />r <br /> <br />, " <br />I~; i <br />:1,i <br />ili <br />, <br />";':;] <br /> <br /> <br />initial echo. As a result the exact relationship of the slope and <br /> <br />aspect in a hot spot to the position of the echo producing cumulus is <br /> <br />only approximate. A finer grid and a different observation system <br /> <br />."i' <br />r!'\ <br />"I <br />31;,' <br />h I <br />.!i\! <br />'Iii:,: , <br />I:;' <br />il'J; <br />~' . i' f: f ' <br />:'1', < <br />:1:' i <br /> <br />'I' , <br />\-, ' <br />:1:1 <br /><\ <br />I ;'J <br /> <br />would be needed to define this relationship in a specific manner. The <br /> <br />This quantitative infornation emphasizes the dominating influence <br /> <br />of the Colorado Rockies on the formation of High Plains convection. <br />
The URL can be used to link to this page
Your browser does not support the video tag.