National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service
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WALKER RIVER - MASON (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaRiver Group: Eastern Sierra
Issuance Time: Jul 25 2017 at 7:42 AM PDTNext Issuance: Jul 26 2017 at 9:00 AM PDT
Monitor Stage: 9.3 FeetFlood Stage: 9.8 Feet

SPECIAL NOTE:Provisional rating under development due to recent sediment removal. Increased uncertainty exists for both observed and forecast flows.

# Tabular River Observed & Forecast - Hydrograph Information
#
# File Generation Time:  07/25/2017  07:42 AM PDT
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/20/2017 10 AM PDT
# Maximum Observed Stage:                       8.3 Feet
# Maximum Observed Flow:                        1678 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/25/2017 12 PM PDT
# Maximum Forecast Stage:                       7.3 Feet
# Maximum Forecast Flow:                        1292 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/20/2017 07 AM PDT             8.3           1678                        Normal
  07/20/2017 08 AM PDT             8.3           1662         -              Normal
  07/20/2017 09 AM PDT             8.3           1674         +              Normal
  07/20/2017 10 AM PDT             8.3           1678         +              Normal
  07/20/2017 11 AM PDT             8.3           1666         -              Normal
  07/20/2017 12 PM PDT             8.3           1662         -              Normal
  07/20/2017 01 PM PDT             8.2           1649         -              Normal
  07/20/2017 02 PM PDT             8.2           1636         -              Normal
  07/20/2017 03 PM PDT             8.2           1645         +              Normal
  07/20/2017 04 PM PDT             8.2           1641         -              Normal
  07/20/2017 05 PM PDT             8.2           1636         -              Normal
  07/20/2017 06 PM PDT             8.2           1636         0              Normal
  07/20/2017 07 PM PDT             8.1           1620         -              Normal
  07/20/2017 08 PM PDT             8.2           1628         +              Normal
  07/20/2017 09 PM PDT             8.2           1628         0              Normal
  07/20/2017 10 PM PDT             8.1           1616         -              Normal
  07/20/2017 11 PM PDT             8.1           1595         -              Normal
  07/21/2017 12 AM PDT             8.1           1587         -              Normal
  07/21/2017 01 AM PDT             8.0           1571         -              Normal
  07/21/2017 02 AM PDT             8.0           1554         -              Normal
  07/21/2017 03 AM PDT             8.0           1550         -              Normal
  07/21/2017 04 AM PDT             8.0           1542         -              Normal
  07/21/2017 05 AM PDT             8.0           1542         0              Normal
  07/21/2017 06 AM PDT             7.9           1526         -              Normal
  07/21/2017 07 AM PDT             7.9           1522         -              Normal
  07/21/2017 08 AM PDT             7.9           1530         +              Normal
  07/21/2017 09 AM PDT             8.0           1542         +              Normal
  07/21/2017 10 AM PDT             7.9           1510         -              Normal
  07/21/2017 11 AM PDT             7.9           1530         +              Normal
  07/21/2017 12 PM PDT             7.9           1522         -              Normal
  07/21/2017 01 PM PDT             7.9           1518         -              Normal
  07/21/2017 02 PM PDT             7.9           1502         -              Normal
  07/21/2017 03 PM PDT             7.9           1502         0              Normal
  07/21/2017 04 PM PDT             7.9           1506         +              Normal
  07/21/2017 05 PM PDT             7.9           1502         -              Normal
  07/21/2017 06 PM PDT             7.8           1485         -              Normal
  07/21/2017 07 PM PDT             7.8           1481         -              Normal
  07/21/2017 08 PM PDT             7.8           1469         -              Normal
  07/21/2017 09 PM PDT             7.8           1458         -              Normal
  07/21/2017 10 PM PDT             7.8           1461         +              Normal
  07/21/2017 11 PM PDT             7.7           1438         -              Normal
  07/22/2017 12 AM PDT             7.6           1414         -              Normal
  07/22/2017 01 AM PDT             7.6           1387         -              Normal
  07/22/2017 02 AM PDT             7.6           1402         +              Normal
  07/22/2017 03 AM PDT             7.6           1402         0              Normal
  07/22/2017 04 AM PDT             7.6           1387         -              Normal
  07/22/2017 05 AM PDT             7.6           1390         +              Normal
  07/22/2017 06 AM PDT             7.6           1383         -              Normal
  07/22/2017 07 AM PDT             7.6           1383         0              Normal
  07/22/2017 08 AM PDT             7.5           1375         -              Normal
  07/22/2017 09 AM PDT             7.6           1383         +              Normal
  07/22/2017 10 AM PDT             7.5           1367         -              Normal
  07/22/2017 11 AM PDT             7.5           1371         +              Normal
  07/22/2017 12 PM PDT             7.5           1363         -              Normal
  07/22/2017 01 PM PDT             7.5           1363         0              Normal
  07/22/2017 02 PM PDT             7.5           1360         -              Normal
  07/22/2017 03 PM PDT             7.5           1360         0              Normal
  07/22/2017 04 PM PDT             7.5           1344         -              Normal
  07/22/2017 05 PM PDT             7.5           1348         +              Normal
  07/22/2017 06 PM PDT             7.4           1333         -              Normal
  07/22/2017 07 PM PDT             7.4           1321         -              Normal
  07/22/2017 08 PM PDT             7.4           1333         +              Normal
  07/22/2017 09 PM PDT             7.4           1313         -              Normal
  07/22/2017 10 PM PDT             7.4           1310         -              Normal
  07/22/2017 11 PM PDT             7.4           1306         -              Normal
  07/23/2017 12 AM PDT             7.3           1302         -              Normal
  07/23/2017 01 AM PDT             7.3           1295         -              Normal
  07/23/2017 02 AM PDT             7.3           1298         +              Normal
  07/23/2017 03 AM PDT             7.3           1295         -              Normal
  07/23/2017 04 AM PDT             7.3           1287         -              Normal
  07/23/2017 05 AM PDT             7.3           1295         +              Normal
  07/23/2017 06 AM PDT             7.3           1279         -              Normal
  07/23/2017 07 AM PDT             7.3           1279         0              Normal
  07/23/2017 08 AM PDT             7.3           1291         +              Normal
  07/23/2017 09 AM PDT             7.3           1283         -              Normal
  07/23/2017 10 AM PDT             7.3           1268         -              Normal
  07/23/2017 11 AM PDT             7.3           1272         +              Normal
  07/23/2017 12 PM PDT             7.3           1283         +              Normal
  07/23/2017 01 PM PDT             7.3           1279         -              Normal
  07/23/2017 02 PM PDT             7.3           1283         +              Normal
  07/23/2017 03 PM PDT             7.3           1283         0              Normal
  07/23/2017 04 PM PDT             7.3           1268         -              Normal
  07/23/2017 05 PM PDT             7.3           1265         -              Normal
  07/23/2017 06 PM PDT             7.3           1279         +              Normal
  07/23/2017 07 PM PDT             7.3           1268         -              Normal
  07/23/2017 08 PM PDT             7.3           1276         +              Normal
  07/23/2017 09 PM PDT             7.3           1272         -              Normal
  07/23/2017 10 PM PDT             7.3           1272         0              Normal
  07/23/2017 11 PM PDT             7.3           1272         0              Normal
  07/24/2017 12 AM PDT             7.3           1272         0              Normal
  07/24/2017 01 AM PDT             7.3           1265         -              Normal
  07/24/2017 02 AM PDT             7.3           1265         0              Normal
  07/24/2017 03 AM PDT             7.2           1257         -              Normal
  07/24/2017 04 AM PDT             7.2           1261         +              Normal
  07/24/2017 05 AM PDT             7.3           1268         +              Normal
  07/24/2017 06 AM PDT             7.2           1261         -              Normal
  07/24/2017 07 AM PDT             7.3           1265         +              Normal
  07/24/2017 08 AM PDT             7.3           1268         +              Normal
  07/24/2017 09 AM PDT             7.3           1268         0              Normal
  07/24/2017 10 AM PDT             7.3           1279         +              Normal
  07/24/2017 11 AM PDT             7.3           1268         -              Normal
  07/24/2017 12 PM PDT             7.3           1268         0              Normal
  07/24/2017 01 PM PDT             7.2           1249         -              Normal
  07/24/2017 02 PM PDT             7.3           1265         +              Normal
  07/24/2017 03 PM PDT             7.3           1283         +              Normal
  07/24/2017 04 PM PDT             7.3           1283         0              Normal
  07/24/2017 05 PM PDT             7.3           1291         +              Normal
  07/24/2017 06 PM PDT             7.3           1295         +              Normal
  07/24/2017 07 PM PDT             7.3           1272         -              Normal
  07/24/2017 08 PM PDT             7.3           1287         +              Normal
  07/24/2017 09 PM PDT             7.3           1276         -              Normal
  07/24/2017 10 PM PDT             7.3           1287         +              Normal
  07/24/2017 11 PM PDT             7.3           1279         -              Normal
  07/25/2017 12 AM PDT             7.3           1295         +              Normal
  07/25/2017 01 AM PDT             7.3           1295         0              Normal
  07/25/2017 02 AM PDT             7.3           1291         -              Normal
  07/25/2017 03 AM PDT             7.3           1279         -              Normal
  07/25/2017 04 AM PDT             7.3           1276         -              Normal
  07/25/2017 05 AM PDT             7.3           1279         +              Normal
  07/25/2017 06 AM PDT             7.3           1281         +              Normal
  07/25/2017 07 AM PDT             7.3           1285         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/25/2017 08 AM PDT             7.3           1287                        Normal
  07/25/2017 09 AM PDT             7.3           1289         +              Normal
  07/25/2017 10 AM PDT             7.3           1290         +              Normal
  07/25/2017 11 AM PDT             7.3           1291         +              Normal
  07/25/2017 12 PM PDT             7.3           1292         +              Normal
  07/25/2017 01 PM PDT             7.3           1292         0              Normal
  07/25/2017 02 PM PDT             7.3           1291         -              Normal
  07/25/2017 03 PM PDT             7.3           1290         -              Normal
  07/25/2017 04 PM PDT             7.3           1289         -              Normal
  07/25/2017 05 PM PDT             7.3           1288         -              Normal
  07/25/2017 06 PM PDT             7.3           1288         0              Normal
  07/25/2017 07 PM PDT             7.3           1287         -              Normal
  07/25/2017 08 PM PDT             7.3           1285         -              Normal
  07/25/2017 09 PM PDT             7.3           1283         -              Normal
  07/25/2017 10 PM PDT             7.3           1281         -              Normal
  07/25/2017 11 PM PDT             7.3           1280         -              Normal
  07/26/2017 12 AM PDT             7.3           1280         0              Normal
  07/26/2017 01 AM PDT             7.3           1280         0              Normal
  07/26/2017 02 AM PDT             7.3           1282         +              Normal
  07/26/2017 03 AM PDT             7.3           1283         +              Normal
  07/26/2017 04 AM PDT             7.3           1285         +              Normal
  07/26/2017 05 AM PDT             7.3           1286         +              Normal
  07/26/2017 06 AM PDT             7.3           1287         +              Normal
  07/26/2017 07 AM PDT             7.3           1287         0              Normal
  07/26/2017 08 AM PDT             7.3           1286         -              Normal
  07/26/2017 09 AM PDT             7.3           1284         -              Normal
  07/26/2017 10 AM PDT             7.3           1282         -              Normal
  07/26/2017 11 AM PDT             7.3           1279         -              Normal
  07/26/2017 12 PM PDT             7.3           1275         -              Normal
  07/26/2017 01 PM PDT             7.3           1271         -              Normal
  07/26/2017 02 PM PDT             7.3           1267         -              Normal
  07/26/2017 03 PM PDT             7.2           1262         -              Normal
  07/26/2017 04 PM PDT             7.2           1257         -              Normal
  07/26/2017 05 PM PDT             7.2           1253         -              Normal
  07/26/2017 06 PM PDT             7.2           1250         -              Normal
  07/26/2017 07 PM PDT             7.2           1245         -              Normal
  07/26/2017 08 PM PDT             7.2           1240         -              Normal
  07/26/2017 09 PM PDT             7.2           1236         -              Normal
  07/26/2017 10 PM PDT             7.2           1232         -              Normal
  07/26/2017 11 PM PDT             7.2           1228         -              Normal
  07/27/2017 12 AM PDT             7.1           1224         -              Normal
  07/27/2017 01 AM PDT             7.1           1221         -              Normal
  07/27/2017 02 AM PDT             7.1           1218         -              Normal
  07/27/2017 03 AM PDT             7.1           1215         -              Normal
  07/27/2017 04 AM PDT             7.1           1213         -              Normal
  07/27/2017 05 AM PDT             7.1           1211         -              Normal
  07/27/2017 06 AM PDT             7.1           1208         -              Normal
  07/27/2017 07 AM PDT             7.1           1206         -              Normal
  07/27/2017 08 AM PDT             7.1           1205         -              Normal
  07/27/2017 09 AM PDT             7.1           1203         -              Normal
  07/27/2017 10 AM PDT             7.1           1201         -              Normal
  07/27/2017 11 AM PDT             7.1           1199         -              Normal
  07/27/2017 12 PM PDT             7.1           1197         -              Normal
  07/27/2017 01 PM PDT             7.1           1195         -              Normal
  07/27/2017 02 PM PDT             7.1           1193         -              Normal
  07/27/2017 03 PM PDT             7.1           1191         -              Normal
  07/27/2017 04 PM PDT             7.0           1189         -              Normal
  07/27/2017 05 PM PDT             7.0           1187         -              Normal
  07/27/2017 06 PM PDT             7.0           1187         0              Normal
  07/27/2017 07 PM PDT             7.0           1185         -              Normal
  07/27/2017 08 PM PDT             7.0           1184         -              Normal
  07/27/2017 09 PM PDT             7.0           1182         -              Normal
  07/27/2017 10 PM PDT             7.0           1180         -              Normal
  07/27/2017 11 PM PDT             7.0           1179         -              Normal
  07/28/2017 12 AM PDT             7.0           1178         -              Normal
  07/28/2017 01 AM PDT             7.0           1177         -              Normal
  07/28/2017 02 AM PDT             7.0           1176         -              Normal
  07/28/2017 03 AM PDT             7.0           1175         -              Normal
  07/28/2017 04 AM PDT             7.0           1174         -              Normal
  07/28/2017 05 AM PDT             7.0           1173         -              Normal
  07/28/2017 06 AM PDT             7.0           1172         -              Normal
  07/28/2017 07 AM PDT             7.0           1172         0              Normal
  07/28/2017 08 AM PDT             7.0           1171         -              Normal
  07/28/2017 09 AM PDT             7.0           1170         -              Normal
  07/28/2017 10 AM PDT             7.0           1169         -              Normal
  07/28/2017 11 AM PDT             7.0           1168         -              Normal
  07/28/2017 12 PM PDT             7.0           1167         -              Normal
  07/28/2017 01 PM PDT             7.0           1166         -              Normal
  07/28/2017 02 PM PDT             7.0           1165         -              Normal
  07/28/2017 03 PM PDT             7.0           1163         -              Normal
  07/28/2017 04 PM PDT             7.0           1162         -              Normal
  07/28/2017 05 PM PDT             7.0           1161         -              Normal
  07/28/2017 06 PM PDT             7.0           1161         0              Normal
  07/28/2017 07 PM PDT             7.0           1159         -              Normal
  07/28/2017 08 PM PDT             7.0           1158         -              Normal
  07/28/2017 09 PM PDT             7.0           1156         -              Normal
  07/28/2017 10 PM PDT             7.0           1155         -              Normal
  07/28/2017 11 PM PDT             7.0           1154         -              Normal
  07/29/2017 12 AM PDT             6.9           1153         -              Normal
  07/29/2017 01 AM PDT             6.9           1152         -              Normal
  07/29/2017 02 AM PDT             6.9           1151         -              Normal
  07/29/2017 03 AM PDT             6.9           1150         -              Normal
  07/29/2017 04 AM PDT             6.9           1150         0              Normal
  07/29/2017 05 AM PDT             6.9           1149         -              Normal
  07/29/2017 06 AM PDT             6.9           1149         0              Normal
  07/29/2017 07 AM PDT             6.9           1148         -              Normal
  07/29/2017 08 AM PDT             6.9           1148         0              Normal
  07/29/2017 09 AM PDT             6.9           1147         -              Normal
  07/29/2017 10 AM PDT             6.9           1146         -              Normal
  07/29/2017 11 AM PDT             6.9           1146         0              Normal
  07/29/2017 12 PM PDT             6.9           1145         -              Normal
  07/29/2017 01 PM PDT             6.9           1144         -              Normal
  07/29/2017 02 PM PDT             6.9           1143         -              Normal
  07/29/2017 03 PM PDT             6.9           1143         0              Normal
  07/29/2017 04 PM PDT             6.9           1142         -              Normal
  07/29/2017 05 PM PDT             6.9           1141         -              Normal
  07/29/2017 06 PM PDT             6.9           1141         0              Normal
  07/29/2017 07 PM PDT             6.9           1140         -              Normal
  07/29/2017 08 PM PDT             6.9           1140         0              Normal
  07/29/2017 09 PM PDT             6.9           1139         -              Normal
  07/29/2017 10 PM PDT             6.9           1138         -              Normal
  07/29/2017 11 PM PDT             6.9           1138         0              Normal
  07/30/2017 12 AM PDT             6.9           1138         0              Normal
  07/30/2017 01 AM PDT             6.9           1138         0              Normal
  07/30/2017 02 AM PDT             6.9           1138         0              Normal
  07/30/2017 03 AM PDT             6.9           1138         0              Normal
  07/30/2017 04 AM PDT             6.9           1138         0              Normal
  07/30/2017 05 AM PDT             6.9           1139         +              Normal

# NOTE 1: Stages are rounded to the nearest tenth (.1) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and/or flow.
# NOTE 4: Maximum Values are determined using unrounded stage and/or flow.