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SNAKE - JACKSON LAKE AT DAM (JLKW4)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF     Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast
Forecasts Are in KAF 30 Year
Average

(1991-2020)
90 % 50 % %
Average
10 %
APR-SEP 476 675 79 1027 854
APR-JUL 421 591 76 932 778
APR-AUG 450 638 78 988 822
JAN-SEP 542 738 78 1106 948
JAN-JUL 487 654 75 1010 872
OCT-SEP 621 819 78 1186 1045
Experimental
HEFS with 15 days EQPF    Ensemble: 2026-10-22  Issued: 2026-10-22 Hide Forecast
APR-SEP 488 674 79 1044 854
APR-JUL 433 605 78 954 778
APR-AUG 462 639 78 1005 822
JAN-SEP 555 737 78 1125 948
JAN-JUL 499 673 77 1035 872
OCT-SEP 638 823 79 1209 1045
Reference
ESP with 0 Days QPF    Ensemble: 2026-10-22  Issued: 2026-10-22 Hide Forecast
APR-SEP 496 684 80 1064 854
APR-JUL 439 608 78 970 778
APR-AUG 470 655 80 1025 822
JAN-SEP 566 747 79 1148 948
JAN-JUL 507 669 77 1054 872
OCT-SEP 650 824 79 1238 1045
Move the mouse over the desired "Forecast Period" to display a graph.
<table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 2, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1511</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1099</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>874</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>672</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>582</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>493</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>413</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 3, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1526</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1109</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>886</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>681</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>594</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>502</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>422</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 4, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1527</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1109</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>887</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>675</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>594</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>497</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>423</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 5, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1528</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1103</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>887</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>676</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>595</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>494</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>420</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 6, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1552</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1111</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>906</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>694</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>613</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>510</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>433</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 7, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1570</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1125</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>926</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>713</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>620</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>526</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>448</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 8, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1573</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1118</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>934</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>719</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>623</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>530</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>455</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 9, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1559</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1108</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>931</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>717</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>621</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>525</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>453</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 10, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1467</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1037</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>863</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>663</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>571</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>480</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>411</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 11, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1451</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1032</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>856</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>657</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>566</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>475</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>407</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 12, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1489</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1060</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>888</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>686</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>594</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>500</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>430</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 13, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1486</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1060</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>888</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>682</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>594</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>492</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>431</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 14, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1478</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1057</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>886</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>677</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>590</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>482</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>427</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 15, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1471</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1060</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>895</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>680</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>598</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>487</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>432</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 16, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1431</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1039</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>875</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>658</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>580</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>468</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>414</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 17, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1445</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1046</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>886</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>665</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>586</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>477</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>424</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 18, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1502</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1091</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>928</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>706</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>624</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>506</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>456</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 19, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1492</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1070</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>921</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>696</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>617</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>498</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>450</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 20, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1480</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1059</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>903</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>685</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>607</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>484</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>443</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 21, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1495</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1055</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>915</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>701</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>622</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>496</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>446</td></tr>
                   </table> <table id=popup_table>
                     <tr><td id=popup_table_td_ESPTYPE colspan=2>ESP10<br><label id=popup_table_td_date>Oct 22, 2026</label></td></tr>
                     <tr><td id=popup_table_td_data_max>MAX:</td><td id=popup_table_td_data>1467</td></tr>
                     <tr><td id=popup_table_td_data_10>10%:</td><td id=popup_table_td_data>1027</td></tr>
                     <tr><td id=popup_table_td_data_25>25%:</td><td id=popup_table_td_data>888</td></tr>
                     <tr><td id=popup_table_td_data_50>50%:</td><td id=popup_table_td_data_50>675</td></tr>
                     <tr><td id=popup_table_td_data_75>75%:</td><td id=popup_table_td_data>599</td></tr>
                     <tr><td id=popup_table_td_data_90>90%:</td><td id=popup_table_td_data>476</td></tr>
                     <tr><td id=popup_table_td_data_min>MIN:</td><td id=popup_table_td_data>427</td></tr>
                   </table> Link to image of plot
  • JLKW4N_SQIN.ESPF0.csv|2026-10-22
  • JLKW4N_SQIN.ESPF10.csv|2026-10-22
  • JLKW4N_SQIN.ESPFM.csv|2026-10-22



APR-SEP

#FFF68F
#33CCFF
#404040
#660066
#F00007
#66CCFF
ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast