EXHIBIT 99.1
Contacts:  Kermit K. Houser             Marshall J. Alexander
           President and CEO            Executive VP And  CFO
           (541) 882-3444 X 7133        (541) 882-3444 X 7120
News   Release
================================================================================
          KLAMATH FIRST REPORTS ADJUSTED FISCAL THIRD QUARTER RESULTS;
          NON-CASH CHARGE REDUCES YEAR-TO-DATE PROFITS TO $1.5 MILLION

KLAMATH FALLS,  OREGON - August 13, 2003 - Klamath First Bancorp,  Inc. (Nasdaq:
KFBI) today  announced it has adjusted  results for the third quarter ended June
30, 2003,  as a result of a non-cash  charge to earnings of  approximately  $2.5
million after tax in connection with "other-than-temporary" impairment (OTTI) on
two Federal  Home Loan  Mortgage  Corporation  (FHLMC) and one Federal  National
Mortgage  Association  (FNMA) issues of variable rate  non-cumulative  preferred
stock held in the Company's available for sale investment  portfolio.  After the
non-cash charge,  Klamath First recorded a net loss of $1.4 million,  or $(0.20)
per diluted share, for the third fiscal quarter. After the charge,  earnings for
the nine months ended June 30, 2003, totaled $1.5 million,  or $0.22 per diluted
share.

"This  impairment is not  permanent,"  said Kermit  Houser,  President and Chief
Executive  Office.  "This decrease in value was the result of the  unprecedented
decline in interest rates of the last two years.  We do not anticipate the value
will fully recover in the near term,  however,  when interest rates rise,  there
will be a relative  increase in the value of the  securities.  In fact, from the
end of the third fiscal quarter, when we calculated the charge, until the end of
July, there was a $650,000  improvement in the market value of these securities.
Any increases in value will subsequently only be realized through an increase in
the Company's  equity in the normal  mark-to-market  process,  but will increase
income only when and if the securities are sold."

The $2.5 million after tax charge is for the reduction to fair market value,  as
of June 30, 2003,  of three issues of floating rate  preferred  stock of Federal
Home  Loan  Mortgage   Corporation   (FHLMC),   and  Federal  National  Mortgage
Association  (FNMA)  that,  as of the same date,  had a  combined  cost of $18.7
million and a combined market value of  approximately  $15.2 million.  The three
issues of the  preferred  stock pay  dividends  and qualify for the 70% dividend
received  deduction,  resulting in a greater  after tax  effective  yield.  As a
result of the leveraged nature of the tax benefit, when rates increase the yield
and  mark-to-market  improve,  as rates  decline  the yield  and  mark-to-market
decrease.

"FHLMC and FNMA have issued more than $7.5  billion of  preferred  stock  issues
over the past  several  years and while we believe most of our peers have yet to
reflect this OTTI through their profit and loss statements,  after  consultation
with our auditors  Deloitte & Touche LLP, we have concluded that now is the time
to take the impairment charge in accordance with GAAP," said Houser.

These  securities  are accounted for in accordance  with  Statement of Financial
Accounting  Standards (SFAS) No. 115, Accounting for Certain Investments in Debt
and  Equity  Securities.  In  accordance  with SFAS 115,  the  determination  of
"other-than-temporary"  impairment  considers  both the  length  of time and the
extent to which the value of a security  has  declined.  These  write-downs  are
non-cash  charges,  which are  recorded  as realized  losses in Klamath  First's
income  statement,  with a  corresponding  reduction  in  unrealized  losses  in
shareholders'  equity,  even  though  there  were no  sales  of the  securities.
Previously  the market value losses on these  securities  were  reflected in the
equity statement  through other  comprehensive  income rather than in the income
statement.  As a result,  reported  equity and book value of the Company are not
affected by this charge.

As previously  announced,  Klamath First is party to a pending merger  agreement
pursuant  to  which  Klamath  will  merge  with  and  into  Sterling   Financial
Corporation (Nasdaq: STSA). The adjustment of results for the third quarter will
not affect the pending  merger  because it is understood  that Sterling took the
matter  into  account as part of its normal due  diligence  analysis  of Klamath
First as a potential merger candidate.


About Klamath First Bancorp, Inc.

Klamath  First  Bancorp,  Inc. is the holding  company for Klamath First Federal
Savings and Loan  Association,  which  operates  59  offices,  57 in 26 counties
throughout Oregon and two in-store branches in South Central Washington. Klamath
First serves the state of Oregon  through these offices by offering a full range
of products and services for both the consumer and business customer,  including
commercial,  consumer  and real  estate  loans,  various  checking  and  savings
products,  24-hour telephone  banking,  and online banking with bill pay through
its web site  www.KlamathFirst.com.  Customers  have  access  to  brokerage  and
investment  services  through the company's  subsidiary  Klamath First Financial
Services.  Additionally,  customers may visit new in-store branches seven days a
week with extended banking hours.

ADDITIONAL INFORMATION

The proposed  transaction will be submitted to both Sterling and Klamath First's
shareholders  for their  consideration.  Sterling and Klamath  First will file a
registration  statement,  a joint Proxy Statement/ Prospectus and other relevant
documents  concerning the proposed  transaction  with the SEC.  Shareholders  of
Klamath First are urged to read the Proxy  Statement/Prospectus  when it becomes
available  and any other  relevant  documents  filed with the SEC as well as any
amendments  or  supplements  to  those  documents,  because  they  will  contain
important  information.  Shareholders  may  obtain  a free  copy  of  the  Proxy
Statement/Prospectus  and other documents containing  information about Sterling
and  Klamath  when  they  become   available  on  the  SEC's  Internet  site  at
(http://www.sec.gov).

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements within the meaning of the
Private  Securities   Litigation  Reform  Act  of  1995.  These  forward-looking
statements  include,  but are not limited to,  statements  about (i) thee merger
between  Sterling  Financial  Corporation and Klamath First Bancorp,  Inc.; (ii)
Klamath  First's  plans,  objectives,  expectations  and  intentions  and  other
statements  contained in this  presentation  that are not historical  facts; and
(iii) other  statements  identified by words such as  "expects,"  "anticipates,"
"intends,"  "plans,"  "believes,"  "seeks,"  "estimates,"  or words  of  similar
meaning  generally  intended  to  identify  forward-looking  statements.   These
forward-looking  statements are based upon the current beliefs and  expectations
of the management of Klamath and are inherently subject to significant business,
economic and  competitive  uncertainties  and  contingencies,  many of which are
beyond our control. In addition, these forward-looking statements are subject to
assumptions  with respect to future  business  strategies and decisions that are
subject to change.  Actual results may differ  materially  from the  anticipated
results  discussed  in these  forward-looking  statements  because  of  numerous
possible uncertainties.

The  following  factors,  among  others,  could cause  actual  results to differ
materially from the anticipated  results or other expectations  expressed in the
forward-looking  statements (1) governmental  approvals of the merger may not be
obtained,  or adverse  regulatory  conditions may be imposed in connection  with
governmental  approvals of the merger;  (2) the shareholders of Klamath First or
Sterling  may fail to approve the merger;  (3)  changes in interest  rates;  (4)
changes in tax laws; (5) changes in general  economic  conditions or (6) changes
in the securities markets.  Additional factors,  that could cause actual results
to differ materially from those expressed in the forward-looking  statements are
discussed in Sterling's and Klamath  First's  reports (such as Annual Reports on
Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K) filed
with the Securities and Exchange  Commission and available on the SEC's Internet
site (http://www.sec.gov).  Klamath First Bancorp, Inc. disclaims any obligation
to  publicly  announce  future  events  or  developments  that  may  affect  the
forward-looking statements herein.

                                     # # #

Note:  Transmitted on BusinessWire at 4:30 am PDT, August 13, 2003.
Klamath First 3Q03 Adjustment
August 13, 2003
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