eastern washington stormwater manual isopluvial maps · eastern washington stormwater manual...

Eastern Washington Stormwater Manual Isopluvial maps

Project lead: Karen Dinicola WQ/PDS (360)407-6550, [email protected] Figure 4.3.1: Average Annual Precipitation and Climate Regions Figure 4.3.2: 2-year,2-hour Isopluvial Map Figure 4.3.3: 2-year,24-hour Isopluvial Map Figure 4.3.4: 10-year,24-hour Isopluvial Map Figure 4.3.5: 25-year,24-hour Isopluvial Map Figure 4.3.6: 50-year,24-hour Isopluvial Map Figure 4.3.7: 100-year,24-hour Isopluvial Map Directions for using Isopluvial maps: This data set was developed specifically for the Stormwater Management Manual for Eastern Washington (Ecology, 2004). Precipitation values on all maps are shown in 1/10 inch increments along digitized Isopluvial Arcs. It is expected that all stormwater values extracted from these maps or from the data coverage sets will come from the Isopluvial Arcs and the Arc Attribute (.aat) table ONLY. Polygon values in the coverage data sets should not be used for determining stormwater precipitation, runoff or retention. Areas lying within a polygon and not directly on, or sufficiently close to, a value driven arc should be given an interpolated value between the two directly adjacent arcs. For example; if the desired location lies midway between isopluvial arc values 0.8 and 1.0, the interpreted value for the area will be 0.9 (the polygon value for this area may be 0.8 or 1.0, but for the intended use 0.9 is the correct value). All maps are landscape format and 11x17 page size. See Print screen view and Help dialog on page two of this document for assistance printing these maps. For additional help printing or viewing these maps please contact: Mike Woodall, GIS-TSG, (360)407-6088 or [email protected]

To print from Acrobat view screen; click print click the desired printer from Printer Name box dropdown box click Properties from the Properties window; click Layout click Landscape click Advanced from the Advanced window; click the Paper Size dropdown arrow and choose 11x17 click Ok in the Advanced window click Ok in the Properties window the map should now show in full page size in the preview panel click Ok in the Print window to print

46

47

48

49

46

47

48

49121 120 119 118 117

121 120 119 118 117

Spokane

Spokane Valley

Yakima

Kennewick

Wenatchee

RichlandPasco

Walla Walla

Cheney

East Wenatchee

Ephrata

Quincy

Moses Lake

Ellensburg

Othello

Pullman

Selah

Union Gap

Clarkston

ToppenishWest Richland

Sunnyside

Grandview

College Place

Oroville

Kettle Falls

Colville

OmakOmak

Okanogan

Chewelah

Newport

Brewster

Deer ParkBridgeportCoulee Dam

Chelan

Millwood Liberty Lake

Airway HeightsDavenportWaterville

Medical LakeLeavenworth

Cashmere

Soap Lake

RoslynCle Elum

Ritzville

WardenKittitas Palouse

ColfaxColfax

Royal City

Mattawa

Tieton

Connell

Pomeroy

Wapato

ZillahAsotin

Granger Dayton

WaitsburgBenton City

ProsserMabton

Goldendale

White Salmon

Northport

Metaline FallsMetaline

Ione

TonasketMarcus

Republic

Conconully

RiversideWinthrop

CusickTwisp

Nespelem

Springdale

Pateros

Elmer City

Grand CouleeElectric City

Mansfield

CrestonWilbur

AlmiraReardan

EntiatHartline

Coulee City

Harrington RockfordSpangle

FairfieldWilson Creek Krupp

WaverlyRock IslandOdessa

LatahSprague

Rosalia TekoaMalden

Lamont

South Cle Elum Oakesdale

FarmingtonSaint John

GeorgeGarfield

LindEndicott

La Crosse Albion

Hatton Washtucna

Naches

Kahlotus

Colton

MesaMoxee

Starbuck

Harrah

Prescott

Bingen

3.5

3.4

2.8

2.6

2.4 2.8

3.5

3.0

2.8

3.42.8

3.4

2.42.62.5

4.5

4.0

2.4

2.6

2.6

2.4

4.5

4.0

3.0

2.8

3.0

5.0

2.2

3.0

3.5

4.5

2.6

1.8

2.5

3.52.0

2.4

3.0

2.04.6

3.6 3.4

3.0

2.82.6

2.2

4.0

1.8

2.2

5.5

5.0

4.5

2.5

3.5

3.0

2.83.0

3.0 2.6 3.02.83.0 2.6 3.4

2.43.0

2.4 3.03.5

3.83.4

2.43.02.8

2.2

4.2

3.0

3.8

3.8

4.23.43.53.42.6

3.5

3.0 4.03.0

3.03.03.0

3.0

2.6

3.5

4.0

6.5

3.8

3.03.0

2.8

4.0

3.0

3.0

2.2

3.8

3.43.0 2.8

2.63.0

3.8

3.0

3.0

3.03.0

3.85.5

2.6 3.03.02.8

2.8

2.6

4.2

3.8

3.4

3.4

4.0

5.0

2.0

2.2

4.0

5.0

5.5

4.53.0

2.8

2.2

2.83.5

2.42.6

3.0

4.2

4.2

2.4

4.0

Eastern WashingtonStormwater Manual

100-Year 24-Hour IsopluvialsSource: NOAA Atlas 2, Volume IX, 1973

Precipitation in inches

County(2003, 1:24,000)City(2003, 1:24,000)Latitude/Longitude(1/10 degree)Isopluvial(1973, 1:2,000,000)NOAA/NWS Station(1931-1998)

Water Quality Program

GIS Technical Services02/25/04

Figure_4.3.7

0 16.5 33

Miles

Scale 1:1,600,000

6-88-1010-1212-1414-1616-1818-2020-2222-2424-2828-3232-3636-4040-4444-4848-5252-5656-6060-7070-8080-9090-100100-120120-140140-160160-180180-200

REGION 1: East Slope Cascades

REGION 2: Central Basin

REGION 3: Okanogan, Spokane, Palouse

REGION 4: NE & Blue Mountains

Inches Per Year

Map projection: State Plane Washington South, NAD 27

Created on March 28, 2002

Figure 4.3.1

Eastern Washington

Stormwater Manual

Average Annual Precipitation

Scale 1:1,600,000

Statute Miles

30 40 500 10 20

N

W

S

E

1961-1990With Climate Regions

SOURCE: Oregon Climate Service, U.S.Department of Agriculture, NaturalResources Conservation Service

Pend Oreille

Ferry

Douglas

Lincoln

Franklin

Benton

Columbia

Walla Walla Asotin

Stevens

Okanogan

Chelan

Spokane

GrantKittitas

WhitmanAdams

Yakima

Garfield

Klickitat

Spokane

Yakima

RichlandWest Richland

Pasco

Kennewick

Oroville

RepublicKettle Falls

Colville

Riverside

Omak

OkanoganTwispChewelah

Newport

Brewster

Springdale

Deer ParkBridgeport

Grand CouleeChelan

Airway Heights

EntiatDavenport


Cheney

WenatcheeWilson Creek

East WenatcheeSoap Lake

EphrataTekoaQuincy

Roslyn

Cle Elum OakesdaleMoses Lake

Ritzville

EllensburgLind

WardenPalouseColfaxRoyal City

OthelloPullman

ConnellSelah Uniontown

Mesa

Union GapMoxee

Pomeroy ClarkstonWapato Zillah

ToppenishAsotin

DaytonGranger

SunnysideWaitsburg

Benton City

GrandviewProsser

Walla Walla

College Place

Goldendale

White Salmon

REGION 1

REGION 3

REGION 4

REGION 4

REGION 4REGION 1

REGION 2

8

10

12

14

16

18

20

Spokane

Yakima

RichlandWest Richland

Pasco

Kennewick

Oroville

RepublicKettle Falls

Colville

Riverside

Omak

OkanoganTwispChewelah

Newport

Brewster

Springdale

Deer ParkBridgeport

Grand CouleeChelan

Airway Heights

EntiatDavenport


Cheney

WenatcheeWilson Creek

East WenatcheeSoap Lake

EphrataTekoaQuincy

Roslyn

Cle Elum OakesdaleMoses Lake

Ritzville

EllensburgLind

WardenPalouseColfaxRoyal City

OthelloPullman

ConnellSelah Uniontown

Mesa

Union GapMoxee

Pomeroy ClarkstonWapato Zillah

ToppenishAsotin

DaytonGranger

SunnysideWaitsburg

Benton City

GrandviewProsser

Walla Walla

College Place

Goldendale

White Salmon

Map projection: State Plane Washington South, NAD 27

Created on April 23, 2002

Figure 4.3.2

Eastern Washington

Stormwater Manual

2-Year 2-Hour Isopluvial Map

Scale 1:1,600,000

30 40 500 10 20

N

W

S

E

Isopluvials of 2-Year 2-Hour

Precipitation in Tenths of an Inch

SOURCE: Dam Safety Guidelines, Technical Note 3, Design Storm Construction, Washington State Department’of Ecology, Water Resources Program, report 92-55G, April 1993.

Pend Oreille

Ferry

Douglas

Lincoln

Franklin

Benton

Columbia

Walla Walla Asotin

Stevens

Okanogan

Chelan

Spokane

GrantKittitas

WhitmanAdams

Yakima

Garfield

Klickitat

46

47

48

49

46

47

48

49121 120 119 118 117

121 120 119 118 117

Spokane

Spokane Valley

Yakima

Kennewick

Wenatchee

RichlandPasco

Walla Walla

Cheney

East Wenatchee

Ephrata

Quincy

Moses Lake

Ellensburg

Othello

Pullman

Selah

Union Gap

Clarkston


Sunnyside

Grandview

College Place

Oroville

Kettle Falls

Colville

OmakOmak

Okanogan

Chewelah

Newport

Brewster


Chelan




Cashmere

Soap Lake

RoslynCle Elum

Ritzville


ColfaxColfax

Royal City

Mattawa

Tieton

Connell

Pomeroy

Wapato

ZillahAsotin

Granger Dayton


ProsserMabton

Goldendale

White Salmon

Northport


Ione

TonasketMarcus

Republic

Conconully

RiversideWinthrop

CusickTwisp

Nespelem

Springdale

Pateros

Elmer City


Mansfield

CrestonWilbur

AlmiraReardan

EntiatHartline

Coulee City




LatahSprague

Rosalia TekoaMalden

Lamont



GeorgeGarfield

LindEndicott

La Crosse Albion

Hatton Washtucna

Naches

Kahlotus

Colton

MesaMoxee

Starbuck

Harrah

Prescott

Bingen

2.0

1.81.4

1.2 1.6

1.8

1.0

1.6

1.8

1.4

5.0

1.2

1.4

1.44.5

1.5

1.24.0

1.6

1.0

1.0

1.4

4.01.5

0.8

1.0

1.0

3.5

3.0

1.0

2.5

0.8

1.2

2.4

2.22.0 1.8

1.6

1.4

1.21.0

2.0

1.5

1.61.62.0 1.0 1.63.0 1.6

1.61.2 1.4 1.4 2.4

1.2

1.8

1.2

1.6

1.41.83.5 2.41.0

2.0

1.2 1.61.0

2.5 1.6

2.0

2.2

2.0

2.22.0 1.8 1.4

1.62.0

1.6 2.0

1.81.61.61.5

2.03.5

2.0

2.0

1.6

1.85.5

2.0

2.5

1.2

1.6

1.5

1.0

2.0

1.8

2.0

1.21.6

5.5

1.5

1.6

1.5

1.6

5.53.0

5.51.4

1.0

1.6

1.6

1.4

2.0

2.45.5

2.2

5.0 2.0

1.5 1.54.5

1.5

4.5 1.54.5

4.04.5

1.81.6

5.55.0

4.5

4.5

1.5

4.51.4

4.0

4.54.0

1.2

4.0

1.64.5

4.5

4.0

3.0

1.64.0

1.4

5.0 4.54.0

1.0

4.05.0

5.50.8

4.5

3.5

3.0

1.0

3.53.0

2.5

2.0

1.5







Figure_4.3.3

0 16.5 33

Miles

Scale 1:1,600,000

46

47

48

49

46

47

48

49121 120 119 118 117

121 120 119 118 117

Spokane

Spokane Valley

Yakima

Kennewick

Wenatchee

RichlandPasco

Walla Walla

Cheney

East Wenatchee

Ephrata

Quincy

Moses Lake

Ellensburg

Othello

Pullman

Selah

Union Gap

Clarkston

Toppenish

West RichlandSunnyside

Grandview

College Place

Oroville

Kettle Falls

Colville

OmakOmak

Okanogan

Chewelah

Newport

Brewster


Chelan




Cashmere

Soap Lake

RoslynCle Elum

Ritzville

WardenKittitasPalouse

ColfaxColfax

Royal City

Mattawa

Tieton

Connell

Pomeroy

Wapato

ZillahAsotin

Granger Dayton


ProsserMabton

Goldendale

White Salmon

Northport


Ione

TonasketMarcus

Republic

Conconully

RiversideWinthrop

CusickTwisp

Nespelem

Springdale

Pateros

Elmer City


Mansfield

CrestonWilbur

AlmiraReardan

EntiatHartline

Coulee City




LatahSprague

Rosalia TekoaMalden

Lamont



GeorgeGarfield

LindEndicott

La Crosse Albion

HattonWashtucna

Naches

Kahlotus

Colton

MesaMoxee

Starbuck

Harrah

Prescott

Bingen

2.4

2.0

1.8 2.22.82.0

2.6

2.0

2.4

2.5

2.0

2.4

1.8

3.5

4.03.0

1.6

1.8

2.0

1.6

3.5

5.5

2.22.0

3.0

1.8

4.5

1.6

2.05.5

5.0

2.5

4.0

1.4

2.0

1.3

3.5

1.2

1.3

3.0

1.8

1.6

2.5

1.8

1.65.0

4.51.4

4.0

1.3 3.2

3.02.82.6

2.2

2.0

1.8

1.6

1.4

1.4

3.5

3.0

2.0

1.8 1.6

2.5

3.02.22.0

2.2

2.0 3.21.82.2 2.4

2.2

2.21.8 2.44.0 3.2

2.2

1.8

2.6

1.6 2.02.23.5

3.0

2.62.52.5

3.22.43.0

2.2

2.2

2.6

2.42.2

2.2

2.0

2.5

5.05.5

4.5

3.0

2.8

2.6

2.2

2.4

3.5 3.0

2.2

2.01.8

2.2

2.0

2.6

2.2

2.0

2.2

2.0

2.2

4.02.6

2.21.8

2.22.0

2.0

2.0 3.02.8

2.6

2.2

2.2

2.0

2.05.5

4.5

1.21.4

2.2

4.0

5.5

2.42.2

5.5

2.0

5.5

1.35.55.04.5

1.61.8

2.22.4

2.43.2

2.4

4.5

4.0







Figure_4.3.4

0 16.5 33

Miles

Scale 1:1,600,000

46

47

48

49

46

47

48

49121 120 119 118 117

121 120 119 118 117

Spokane

Spokane Valley

Yakima

Kennewick

Wenatchee

RichlandPasco

Walla Walla

Cheney

East Wenatchee

Ephrata

Quincy

Moses Lake

Ellensburg

Othello

Pullman

Selah

Union Gap

Clarkston


Sunnyside

Grandview

College Place

Oroville

Kettle Falls

Colville

OmakOmak

Okanogan

Chewelah

Newport

Brewster


Chelan




Cashmere

Soap Lake

RoslynCle Elum

Ritzville


ColfaxColfax

Royal City

Mattawa

Tieton

Connell

Pomeroy

Wapato

ZillahAsotin

Granger Dayton


ProsserMabton

Goldendale

White Salmon

Northport


Ione

TonasketMarcus

Republic

Conconully

RiversideWinthrop

CusickTwisp

Nespelem

Springdale

Pateros

Elmer City


Mansfield

CrestonWilbur

AlmiraReardan

EntiatHartline

Coulee City




LatahSprague

Rosalia TekoaMalden

Lamont



GeorgeGarfield

LindEndicott

La Crosse Albion

Hatton Washtucna

Naches

Kahlotus

Colton

MesaMoxee

Starbuck

Harrah

Prescott

Bingen

2.42.8

2.2

2.0

2.6

2.4

2.82.4

2.8

2.22.0

2.23.0

2.0

2.2

2.2

1.8

2.0

2.61.8

2.4

2.5

2.2

1.4

3.0

2.0

1.6

5.5

5.0

2.5

1.8

1.6

3.83.63.0

2.8

2.6

2.4

2.2

2.0

1.8

1.6

4.5

4.03.5

3.0

2.5

2.0

2.65.0 2.65.0

2.2 2.42.2

2.0

2.6

2.0

2.8

2.6

2.8

2.23.0

2.6

2.4

5.0

1.84.05.0

3.4

3.03.0 2.8

3.02.2

2.6 3.42.6

3.0

2.82.62.5

2.6 2.23.0

5.53.43.0

2.62.8

2.4

8.0 2.6 3.4

4.0

2.6

2.4

2.51.82.6

3.0

2.4

2.6

2.2

2.6

3.0

2.5

2.52.6

4.53.0

2.2

2.62.6

2.4

2.4

3.03.83.43.0

2.8

5.5

1.6

1.8

5.0

6.0

2.62.4

2.2

2.2

5.55.0

2.02.6

1.8

5.5

5.0







Figure_4.3.5

0 16.5 33

Miles

Scale 1:1,600,000

46

47

48

49

46

47

48

49121 120 119 118 117

121 120 119 118 117

Spokane

Spokane Valley

Yakima

Kennewick

Wenatchee

RichlandPasco

Walla Walla

Cheney

East Wenatchee

Ephrata

Quincy

Moses Lake

Ellensburg

Othello

Pullman

Selah

Union Gap

Clarkston


Sunnyside

Grandview

College Place

Oroville

Kettle Falls

Colville

OmakOmak

Okanogan

Chewelah

Newport

Brewster


Chelan




Cashmere

Soap Lake

RoslynCle Elum

Ritzville


ColfaxColfax

Royal City

Mattawa

Tieton

Connell

Pomeroy

Wapato

ZillahAsotin

Granger Dayton


ProsserMabton

Goldendale

White Salmon

Northport


Ione

TonasketMarcus

Republic

Conconully

RiversideWinthrop

CusickTwisp

Nespelem

Springdale

Pateros

Elmer City


Mansfield

CrestonWilbur

AlmiraReardan

EntiatHartline

Coulee City




LatahSprague

Rosalia TekoaMalden

Lamont



GeorgeGarfield

LindEndicott

La Crosse Albion

Hatton Washtucna

Naches

Kahlotus

Colton

MesaMoxee

Starbuck

Harrah

Prescott

Bingen

3.5

3.02.62.4

2.2

2.8

2.6

3.02.6

2.5

3.0

2.4

2.6

4.0

2.2

2.0 2.4

2.4

2.4

5.0

2.2

2.8

4.5

3.5

2.0

2.4

1.6

3.04.0

1.8

2.6

5.5

2.5

1.8

4.23.83.4

3.0

2.8

2.62.4

2.2

2.0

1.8

2.0

5.0

4.5

4.0

3.5

3.0

3.8

2.85.05.5

2.82.62.22.63.5 2.2

2.8 3.0

2.2 2.8

3.4

3.0

2.22.82.6

2.0

3.8

5.5

2.8

3.43.2 3.0 3.8

3.22.4 3.4

5.0 2.82.8 3.6

2.0

3.02.8 2.82.8

2.43.2

3.0

3.6

3.4

2.8

3.0

2.6

3.0

3.62.8

2.2

3.4

2.82.6

2.8

2.4

3.4

2.8

2.8

5.02.4

2.82.82.6

2.6

3.83.4

3.0

2.0

5.52.8

2.0

5.5

2.22.4

2.8

5.5

5.5

2.5

3.0







Figure_4.3.6

0 16.5 33

Miles

Scale 1:1,600,000

eastern washington stormwater manual isopluvial maps · eastern washington stormwater manual...

Documents