What type of weather system is over Arizona and Utah? Why are the skies clear over arizona and utah?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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Question

What type of weather system is over Arizona and Utah?

Why are the skies clear over arizona and utah? 

Wind speed. (21 to
25 miles per hour.)
Direction of wind.
(From the north
west.)
Temperature in
degrees Fahrenheit
Total amount of
clouds. (Sky com
pletely covered.)
Visibility. (3/4
mile.)
Present weather.
(Continuous slight
snow in flakes)
Dewpoint in de
grees Fahrenheit.
Cloud type. (Low
fractostratus and/or
fractocumulus.)
Height of cloud
base (300 to 599
feet.)
O
PF
WIL
W!!!
Wind Speed
Miles
per hour
Calm
1-2
3-8
9-14
15-20
21-25
26-31
32-37
38-43
44-49
Station Model
SPECIMEN
STATION MODEL
Cloud type
(High cirrus)
(2
247/
+28,
30-64
245
-A
Part of sky co-
ered by lowest
cloud. (Seven or
eight tenth.)
Knots
per hour
Calm
1-2
3-7
8-12
13-17
18-22
23-27
28-32
33-37
38-42
50-54 43-47
55-60
61-66 53-57
67-71 58-62
72-77 63-67
48-52
Cloud type. (Mid
die altocumulus
Barometric pres
sure at sea level. Ini
tial 9 or 10 omitted
(1024.7 miliars)
Amount of baro
metric change in
past 3 hours
(-28-+2.8 mb
Barometric tend-
dency in past 3
hours (Rising)
Sign showing
whether pressure is
higher or lower than
3 hours ago.
Time precipitation
began or ended. (Be
gan 3 to 4 hours
ago.)
Weather in past 6
hours (Rain.)
Amount of precip
tation in last 6
hours (45 inch)
Sky Coverage (total amount
O
No clouds
Less than one-tenth or
one-tenth
Two-tenths or three-
tenths
Four-tenth
Five-th
Six-tehs
Seven-tenths or eight
tenths
Barometric Tendency
Rising, then falling
Rising then steady: or
rising, then rising more
slowly
2/ Rising steadily, or un
Front symbols are given below:
0
1
Falling or steady, then
3 rising or rising, then
rising more quickly
5
6
7
Nine-tenths or overcast
with openings
Completely overcast
Sky obscured
Cold front (surface)
Warm front (surface)
Occluded front (surface) s
Steady, same as 3
hours ago
& Figure 16.5 Weather station model and standard symbols. (National Weather Serv
Falling, then rising.
same or lower than 3
hours ago
Falling, then steady, or
falling, then falling
more slowly
Falling steadily, or un
steadily
Steady or rising, then
falling or falling, then
falling more quickly
Past Weather
Barometer
now higher
than 3
hours ago
Barometer
now lower
than 3
hours ago
0
1
2
3
4
5 > Drizzle
Rain
7 * Snow
8 V
Shower(s)
9K without precipitation
Clear or few clouds
Partly cloudy (scat-
tered) or variable sky
Cloudy (broken) or
overcast
Not
Plotted
Sandstorm or dust storm,
or drifting or blowing snow
Fog, or smoke, or thick
dust haze
or
-Stationary front (surface)
Warm front (aloft)
Cold front (aloft)
"HIGH" (H) and "LOW" indicate the centers of high and low barometric pressure.
Solid lines are isobars that connect points of equal barometric pressure (corrected to sea
level. The spacing and orientation of isobars are an indication of speed and
direction of wind.
Transcribed Image Text:Wind speed. (21 to 25 miles per hour.) Direction of wind. (From the north west.) Temperature in degrees Fahrenheit Total amount of clouds. (Sky com pletely covered.) Visibility. (3/4 mile.) Present weather. (Continuous slight snow in flakes) Dewpoint in de grees Fahrenheit. Cloud type. (Low fractostratus and/or fractocumulus.) Height of cloud base (300 to 599 feet.) O PF WIL W!!! Wind Speed Miles per hour Calm 1-2 3-8 9-14 15-20 21-25 26-31 32-37 38-43 44-49 Station Model SPECIMEN STATION MODEL Cloud type (High cirrus) (2 247/ +28, 30-64 245 -A Part of sky co- ered by lowest cloud. (Seven or eight tenth.) Knots per hour Calm 1-2 3-7 8-12 13-17 18-22 23-27 28-32 33-37 38-42 50-54 43-47 55-60 61-66 53-57 67-71 58-62 72-77 63-67 48-52 Cloud type. (Mid die altocumulus Barometric pres sure at sea level. Ini tial 9 or 10 omitted (1024.7 miliars) Amount of baro metric change in past 3 hours (-28-+2.8 mb Barometric tend- dency in past 3 hours (Rising) Sign showing whether pressure is higher or lower than 3 hours ago. Time precipitation began or ended. (Be gan 3 to 4 hours ago.) Weather in past 6 hours (Rain.) Amount of precip tation in last 6 hours (45 inch) Sky Coverage (total amount O No clouds Less than one-tenth or one-tenth Two-tenths or three- tenths Four-tenth Five-th Six-tehs Seven-tenths or eight tenths Barometric Tendency Rising, then falling Rising then steady: or rising, then rising more slowly 2/ Rising steadily, or un Front symbols are given below: 0 1 Falling or steady, then 3 rising or rising, then rising more quickly 5 6 7 Nine-tenths or overcast with openings Completely overcast Sky obscured Cold front (surface) Warm front (surface) Occluded front (surface) s Steady, same as 3 hours ago & Figure 16.5 Weather station model and standard symbols. (National Weather Serv Falling, then rising. same or lower than 3 hours ago Falling, then steady, or falling, then falling more slowly Falling steadily, or un steadily Steady or rising, then falling or falling, then falling more quickly Past Weather Barometer now higher than 3 hours ago Barometer now lower than 3 hours ago 0 1 2 3 4 5 > Drizzle Rain 7 * Snow 8 V Shower(s) 9K without precipitation Clear or few clouds Partly cloudy (scat- tered) or variable sky Cloudy (broken) or overcast Not Plotted Sandstorm or dust storm, or drifting or blowing snow Fog, or smoke, or thick dust haze or -Stationary front (surface) Warm front (aloft) Cold front (aloft) "HIGH" (H) and "LOW" indicate the centers of high and low barometric pressure. Solid lines are isobars that connect points of equal barometric pressure (corrected to sea level. The spacing and orientation of isobars are an indication of speed and direction of wind.
8
CO
SD
NE
KS
OK
1012
+15
ator-
37
Oklahoma City
TX
1011
+14
43
Fort Worth
MN
30
27
Kansas City
1010
+17
36
20
JA
Springfield
1008
+32
0
MO
Shreveport
46
43
1006
+27
Little Rock
AR
LA
200
St. Louis
WI
Memphis
O
200
34
21
MS
New Orleans
400
Jackson
72 1008
+12
62 R
1004
-22
Chicago
45
43
Evansville
TN
IN
Indianapolis
600
997 34
-27/
*34
Louisville
992
Nashville
400
MI
Mobile
72 1011¹
68,
3
Birmingham
AL
OH
Columbus
996
34
28
KY
992-
Chattanooga
66
60
1000
-25
Atlanta
61 1004
-20
56
GA
600 Miles
800 Kilometers
WV
Roanoke
Charlotte
SC
61
NC
55
Savannah
FL
VA
58
NY
101
0-20
PA
Charleston
63 1008
-20
1012
Richmond
45 1005
45
54
52
Raleigh
1005
-6
VT
New York
36
18
MD DE
NU
101
4-21
Transcribed Image Text:8 CO SD NE KS OK 1012 +15 ator- 37 Oklahoma City TX 1011 +14 43 Fort Worth MN 30 27 Kansas City 1010 +17 36 20 JA Springfield 1008 +32 0 MO Shreveport 46 43 1006 +27 Little Rock AR LA 200 St. Louis WI Memphis O 200 34 21 MS New Orleans 400 Jackson 72 1008 +12 62 R 1004 -22 Chicago 45 43 Evansville TN IN Indianapolis 600 997 34 -27/ *34 Louisville 992 Nashville 400 MI Mobile 72 1011¹ 68, 3 Birmingham AL OH Columbus 996 34 28 KY 992- Chattanooga 66 60 1000 -25 Atlanta 61 1004 -20 56 GA 600 Miles 800 Kilometers WV Roanoke Charlotte SC 61 NC 55 Savannah FL VA 58 NY 101 0-20 PA Charleston 63 1008 -20 1012 Richmond 45 1005 45 54 52 Raleigh 1005 -6 VT New York 36 18 MD DE NU 101 4-21
Expert Solution
Explanation:

1. Arizona and Utah are in the southwest region of the country and have a semi-arid to the arid climate. The area is renowned for having hot summers and pleasant winters, with temperature variations depending largely on location and altitude.

The "North American Monsoon," is a high-pressure system that frequently affects the region during the summer. The Pacific Ocean and the Gulf of Mexico both contribute moisture to this weather system, which causes thunderstorms and heavy rainfall in some locations. Nonetheless, the area frequently experiences high pressure during the winter, which usually brings about the clear sky and dry conditions.

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