Indiana Administrative Code
Title 312 - NATURAL RESOURCES COMMISSION
Article 6.3 - WATER WITHDRAWAL CONTRACTS FROM STATE RESERVOIRS
Rule 5 - Drought Alerts and Emergency Measures
Section 5-2 - Drought alerts
Universal Citation: 312 IN Admin Code 5-2
Current through March 20, 2024
Authority: IC 14-10-2-4; IC 14-25-2-5
Affected: IC 14-25-2
Sec. 2.
(a) The director of the department may declare a drought alert for a designated reservoir based upon a drought emergency plan approved by the commission. A drought alert shall apply the Standardized Precipitation Index, U.S. Drought Monitor and below normal percentile of regionalized monthly average stream flow.
(b) From least severe to most severe, a drought alert shall be declared as a:
(1) drought watch;
(2) drought warning; or
(3) drought emergency.
(c) Contingency plans shall be specified for a drought alert in any of the following:
(1) A
drought emergency plan approved by the commission.
(2) The terms of a particular drought
alert.
(3) A contract for the
withdrawal of water or the release of water from a reservoir.
(d) The stages of drought alerts and their associated criteria are as follows:
(1) A declaration of drought watch is
appropriate when at least two (2) of the following occur:
(A) The Standardize Precipitation Index is
-1.00 to -1.49.
(B) The stream flow
as a percentile of normal is ten (10) to twenty-four (24).
(C) The U.S. Drought Monitor value is D1 or
more severe.
(2) A
declaration of drought warning is appropriate when at least two (2) of the
following occur:
(A) The Standardized
Precipitation Index is -1.50 to -1.99.
(B) The stream flow as a percentile of normal
is six (6) to nine (9).
(C) The
U.S. Drought Monitor value is D2 or more severe.
(3) A declaration of drought emergency is
appropriate when at least two (2) of the following occur:
(A) The Standardized Precipitation Index is
-2.00 or less.
(B) The stream flow
as a percentile of normal is five (5) or less.
(C) The U.S. Drought Monitor value is from D3
to D4.
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