Text Products for ESG Issued by TIA

Extended Streamflow Guidance
Issued by NWS
Versions: 1
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FGUS63 KMSR 231926
ESGTIA

MAQUOKETA..WAPSIPINICON..SKUNK RIVER BASINS
LONG-RANGE PROBABILISTIC OUTLOOK
NATIONAL WEATHER SERVICE
NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN
226 PM CDT WED AUG 23 2023

IN TABLE 1 BELOW...THE CURRENT (CS) AND HISTORICAL (HS) OR NORMAL
PROBABILITIES OF EXCEEDING MINOR...MODERATE...AND MAJOR FLOOD STAGES
ARE LISTED FOR THE VALID TIME PERIOD.

CS VALUES INDICATE THE PROBABILITY OF REACHING A FLOOD CATEGORY
BASED ON CURRENT CONDITIONS.

HS VALUES INDICATE THE PROBABILITY OF REACHING A FLOOD CATEGORY
BASED ON HISTORICAL OR NORMAL CONDITIONS.

WHEN THE VALUE OF CS IS MORE THAN HS...THE PROBABILITY OF
EXCEEDING THAT LEVEL IS HIGHER THAN NORMAL. WHEN THE VALUE OF CS IS
LESS THAN HS...THE PROBABILITY OF EXCEEDING THAT LEVEL IS LOWER
THAN NORMAL.


:...TABLE 1--PROBABILITIES FOR MINOR...MODERATE AND MAJOR FLOODING...
                   VALID PERIOD: 08/28/2023 - 11/26/2023

                                    : CURRENT AND HISTORICAL CHANCES
                                    : OF EXCEEDING FLOOD CATEGORIES
                                    :       AS A PERCENTAGE(%)
                     CATEGORICAL    :
                  FLOOD STAGES (FT) :   MINOR    MODERATE   MAJOR
LOCATION          MINOR  MOD  MAJOR :  CS   HS   CS   HS   CS   HS
--------          ----- ----- ----- : ---- ---- ---- ---- ---- ----
:Maquoketa River
MCHI4            14.0   17.0   20.0    <5   12   <5    5   <5   <5
MAQI4            24.0   26.0   28.5    <5    9   <5   <5   <5   <5
:Wapsipinicon River
IDPI4            12.0   13.0   15.0    <5    6   <5    6   <5   <5
ANSI4            14.5   18.0   21.5    <5   11   <5    6   <5   <5
DEWI4            11.0   11.5   12.5    11   28   10   24    6   18
:South Skunk River
AMEI4            12.5   16.0   16.5    <5   <5   <5   <5   <5   <5
:Loway Creek
AMWI4            10.0   14.0   15.5    <5   <5   <5   <5   <5   <5
:South Skunk River
AESI4            21.5   23.5   24.5    <5   <5   <5   <5   <5   <5
CFXI4            18.0   19.0   21.0    <5   <5   <5   <5   <5   <5
OOAI4            24.5   28.5   30.0    <5   <5   <5   <5   <5   <5
:North Skunk River
SIGI4            16.0   18.0   21.0    18   28   11   21    5   10
:Skunk River
AGSI4            15.0   17.0   20.0     6   15   <5    8   <5   <5

LEGEND
CS  = CONDITIONAL SIMULATION (CURRENT OUTLOOK)
HS  = HISTORICAL SIMULATION
FT  = FEET


IN TABLE 2 BELOW...THE 95 THROUGH 5 PERCENT COLUMNS INDICATE THE PROBABILITY
OF EXCEEDING THE LISTED STAGE LEVELS (FT) FOR THE VALID TIME PERIOD.

:...TABLE 2--EXCEEDANCE PROBABILITIES...

.B MSR 0828 Z DH12 /DC2308231926/DVD90/HGVFZXT/HGVFZX9/HGVFZXH
.B1 /HGVFZX5/HGVFZXG/HGVFZX1/HGVFZXF
:
:       Chance of Exceeding Stages (ft) at Specific Locations
:             Valid  Period: 08/28/2023 - 11/26/2023
:
:           95%     90%     75%     50%     25%     10%      5%
:           ---     ---     ---     ---     ---     ---     ---
:Maquoketa River
MCHI4       3.7/    3.7/    3.8/    4.8/    6.1/    8.7/   13.7
MAQI4       9.9/    9.9/   10.5/   11.5/   13.2/   16.5/   21.6
:Wapsipinicon River
IDPI4       4.7/    4.8/    5.1/    5.6/    6.2/    7.7/    9.7
ANSI4       4.7/    4.8/    5.2/    6.1/    7.1/   10.5/   13.9
DEWI4       5.3/    5.6/    6.1/    7.3/    8.3/   11.4/   12.7
:South Skunk River
AMEI4       2.6/    2.7/    3.5/    4.5/    5.9/    7.4/    9.2
:Loway Creek
AMWI4       1.1/    1.2/    1.8/    3.1/    4.0/    4.7/    5.5
:South Skunk River
AESI4       9.3/    9.5/   10.3/   12.4/   13.9/   16.4/   17.6
CFXI4       6.9/    6.9/    7.3/    8.9/   10.1/   12.7/   13.6
OOAI4       8.2/    8.2/    8.4/   10.3/   13.0/   15.4/   17.1
:North Skunk River
SIGI4       3.1/    4.2/    5.8/    9.2/   14.6/   18.7/   21.4
:Skunk River
AGSI4       1.5/    2.1/    2.9/    4.6/    8.7/   12.0/   15.3
.END


IN TABLE 3 BELOW...THE 95 THROUGH 5 PERCENT COLUMNS INDICATE THE PROBABILITY
OF FALLING BELOW THE LISTED STAGE LEVELS (FT) FOR THE VALID TIME PERIOD.

:...TABLE 3--NONEXCEEDANCE PROBABILITIES...

.B MSR 0828 Z DH12 /DC2308231926/DVD90/HGVFZNT/HGVFZN9/HGVFZNH
.B1 /HGVFZN5/HGVFZNG/HGVFZN1/HGVFZNF
:
:       Chance of Falling Below Stages (ft) at Specific Locations
:               Valid  Period: 08/28/2023 - 11/26/2023
:
:           95%     90%     75%     50%     25%     10%      5%
:           ---     ---     ---     ---     ---     ---     ---
:Maquoketa River
MCHI4       3.6/    3.6/    3.6/    3.6/    3.6/    3.6/    3.6
MAQI4       9.7/    9.7/    9.6/    9.6/    9.5/    9.5/    9.4
:Wapsipinicon River
IDPI4       4.6/    4.6/    4.5/    4.5/    4.5/    4.5/    4.5
ANSI4       4.5/    4.5/    4.5/    4.5/    4.4/    4.4/    4.4
DEWI4       5.0/    5.0/    5.0/    4.9/    4.9/    4.8/    4.8
:South Skunk River
AMEI4       2.2/    2.2/    2.2/    2.2/    2.2/    2.2/    2.2
:Loway Creek
AMWI4       1.1/    1.1/    1.0/    1.0/    1.0/    1.0/    1.0
:South Skunk River
AESI4       9.2/    9.2/    9.2/    9.1/    9.1/    9.0/    9.0
CFXI4       6.9/    6.8/    6.8/    6.7/    6.7/    6.6/    6.6
OOAI4       8.1/    8.0/    7.9/    7.7/    7.7/    7.6/    7.6
:North Skunk River
SIGI4       2.7/    2.6/    2.6/    2.5/    2.5/    2.5/    2.5
:Skunk River
AGSI4       1.2/    1.2/    1.1/    0.9/    0.9/    0.8/    0.8
.END


:Long-range probabilistic outlooks are issued near the end of
:the month throughout the year.

$$
National Weather Service National Headquarters
