Alert archive / Washington / River Flood Warnings in 2012
River Flood Warning 21, NWS Seattle, WA
NWS Seattle, WA issued this river flood warning at Mar 30, 2012, 8:29 AM PDT for Thurston County, Washington. It took effect at Mar 30, 2012, 4:11 PM PDT. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Mar 30, 2012, 8:29 AM PDT (15:29 UTC)
- In effect from
- Mar 30, 2012, 4:11 PM PDT
- Expired
- Mar 31, 2012, 8:23 AM PDT
- In force
- 16 hr
- Issued by
- NWS Seattle, WA
- Flood severity
- Minor
County Thurston County, WA
The radar
The Langley Hill radar (KLGX), 99 km from the middle of the area, began a volume at 15:28 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Chehalis River near Grand Mound (CGMW1). The gauge peaked at 13.95 ft at Mar 30, 2012, 8:00 PM PDT.
- Action stage
- 138.5 ft
- Minor stage
- 141 ft
- Moderate stage
- 142.5 ft
- Major stage
- 144 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12027500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted, in the capitals the NWS used until 2016.
274 WGUS46 KSEW 301529 FLWSEW BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE SEATTLE WA 829 AM PDT FRI MAR 30 2012 ...THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A FLOOD WARNING FOR THE FOLLOWING RIVERS IN WASHINGTON... CHEHALIS RIVER NEAR GRAND MOUND AFFECTING THURSTON COUNTY. .FLOOD BULLETIN NO. 5 HEAVY RAINS ON THURSDAY CAUSED WATER LEVELS TO RISE ON THE CHEHALIS RIVER. ALTHOUGH THE RAIN HAS LET UP...EXPECT THE RIVER LEVEL TO CONTINUE RISING TODAY BEFORE CRESTING LATER THIS EVENING. AN UPDATED FORECAST FOR THIS RIVER WILL BE ISSUED LATER THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE THROUGH FLOODED AREAS. THIS IS THE CAUSE OF MOST FLOOD RELATED DEATHS IN WASHINGTON. BE ALERT FOR RAPID CHANGES AND MONITOR DEVELOPMENTS BY LISTENING TO NOAA WEATHER RADIO OR OTHER LOCAL MEDIA. && WAC067-310029- /O.NEW.KSEW.FL.W.0021.120330T2311Z-120331T2252Z/ /CGMW1.1.ER.120330T2311Z.120331T0600Z.120331T1352Z.NO/ 829 AM PDT FRI MAR 30 2012 THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A * FLOOD WARNING FOR THE CHEHALIS RIVER NEAR GRAND MOUND * FROM THIS AFTERNOON TO SATURDAY AFTERNOON. * AT 8:00 AM FRIDAY THE STAGE WAS 13.1 FEET. * FLOOD STAGE IS 14.0 FEET. * MINOR FLOODING IS FORECAST. * FORECAST...THE RIVER WILL RISE ABOVE FLOOD STAGE AROUND 4 PM FRIDAY AND CREST NEAR 14.3 FEET AROUND 11 PM FRIDAY. THE RIVER WILL FALL BELOW FLOOD STAGE SATURDAY MORNING. * IMPACT...AT 14.0 FEET...THE CHEHALIS RIVER IN THURSTON COUNTY WILL FLOOD SEVERAL ROADS IN INDEPENDENCE VALLEY INCLUDING JAMES ROAD... INDEPENDENCE ROAD AND MOON ROAD. FLOOD WATERS WILL ALSO COVER NEARBY FARM LANDS. $$ WWW.WEATHER.GOV/SEATTLE
3 follow-up statements
322
WGUS86 KSEW 302330
FLSSEW
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
430 PM PDT FRI MAR 30 2012
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
WASHINGTON...
CHEHALIS RIVER NEAR GRAND MOUND AFFECTING THURSTON COUNTY.
.FLOOD BULLETIN NO. 6
SOUTH WEST REGION
EXPECT MORE RAIN LATER TONIGHT INTO SATURDAY DUE TO ANOTHER SYSTEM
IMPACTING THE REGION. ABOUT AN INCH OF ADDITIONAL RAINFALL IS
EXPECTED BY SATURDAY AFTERNOON. THIS WILL KEEP THE RIVER RUNNING
HIGH...WITH THE RIVER NOT FALLING BELOW FLOOD STAGE UNTIL SATURDAY
AFTERNOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE THROUGH FLOODED AREAS. THIS IS THE CAUSE OF MOST FLOOD
RELATED DEATHS IN WASHINGTON. BE ALERT FOR RAPID CHANGES AND MONITOR
THE LATEST FORECASTS FROM THE NATIONAL WEATHER SERVICE.
&&
WAC067-310730-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-120401T0535Z/
/CGMW1.1.ER.120330T2323Z.120331T0600Z.120331T2035Z.NO/
430 PM PDT FRI MAR 30 2012
...FLOOD WARNING EXTENDED UNTIL SATURDAY EVENING...
THE FLOOD WARNING CONTINUES FOR
THE CHEHALIS RIVER NEAR GRAND MOUND
* FROM 4 PM THIS AFTERNOON UNTIL SATURDAY EVENING.
* AT 4:00 PM THIS AFTERNOON THE STAGE WAS 13.9 FEET.
* FLOOD STAGE IS 14.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL RISE ABOVE FLOOD STAGE AROUND 4 PM TODAY
AND CREST NEAR 14.7 FEET AROUND 11 PM TONIGHT. THE RIVER WILL FALL
BELOW FLOOD STAGE EARLY SATURDAY AFTERNOON.
* IMPACT...AT 14.0 FEET...THE CHEHALIS RIVER IN THURSTON COUNTY WILL
FLOOD SEVERAL ROADS IN INDEPENDENCE VALLEY INCLUDING JAMES ROAD...
INDEPENDENCE ROAD AND MOON ROAD. FLOOD WATERS WILL ALSO COVER
NEARBY FARM LANDS.
$$582
WGUS86 KSEW 310735
FLSSEW
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
1235 AM PDT SAT MAR 31 2012
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
WASHINGTON...
CHEHALIS RIVER NEAR GRAND MOUND AFFECTING THURSTON COUNTY.
.FLOOD BULLETIN NO. 7
SOUTH WEST REGION
EXPECT MORE RAIN THIS MORNING DUE TO ANOTHER SYSTEM
IMPACTING THE REGION. ABOUT AN INCH OF ADDITIONAL RAINFALL IS
EXPECTED BY THIS AFTERNOON. THIS WILL KEEP THE RIVER NEAR FLOOD
STAGE THROUGH THIS AFTERNOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE CARS...VANS...OR TRUCKS THROUGH FLOODED AREAS...THIS IS
THE CAUSE OF MOST FLOOD RELATED DEATHS IN WASHINGTON. BE ALERT FOR
RAPID CHANGES AND MONITOR DEVELOPMENTS BY LISTENING TO NOAA WEATHER
RADIO OR OTHER LOCAL MEDIA.
&&
WAC067-311535-
/O.CON.KSEW.FL.W.0021.000000T0000Z-120401T0535Z/
/CGMW1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1235 AM PDT SAT MAR 31 2012
THE FLOOD WARNING CONTINUES FOR
THE CHEHALIS RIVER NEAR GRAND MOUND
* UNTIL THIS EVENING.
* AT 12:00 AM SATURDAY THE STAGE WAS 13.9 FEET.
* FLOOD STAGE IS 14.0 FEET.
* THE RIVER WILL REMAIN NEAR FLOOD STAGE THROUGH THIS AFTERNOON.
* IMPACT...AT 14.0 FEET...THE CHEHALIS RIVER IN THURSTON COUNTY WILL
FLOOD SEVERAL ROADS IN INDEPENDENCE VALLEY INCLUDING JAMES ROAD...
INDEPENDENCE ROAD AND MOON ROAD. FLOOD WATERS WILL ALSO COVER
NEARBY FARM LANDS.
$$
WEATHER.GOV/SEATTLE680
WGUS86 KSEW 311524
FLSSEW
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
823 AM PDT SAT MAR 31 2012
...THE FLOOD WARNING HAS ENDED FOR THE FOLLOWING RIVERS IN
WASHINGTON...
CHEHALIS RIVER NEAR GRAND MOUND AFFECTING THURSTON COUNTY.
.FLOOD BULLETIN NO. 8
SOUTH WEST REGION
THE CHEHALIS RIVER NEAR GRAND MOUND WILL CONTINUE TO RUN HIGH
DUE TO ADDITIONAL RAINFALL BUT SHOULD REMAIN BELOW FLOOD STAGE.
ALTHOUGH THE RIVER HAS FALLEN BELOW FLOOD STAGE...IT WILL
CONTINUE TO CAUSE LOCALIZED MINOR FLOODING UNTIL THE LEVEL
FALLS BELOW 12.5 FEET. THUS THE FLOOD WARNING WILL BE REPLACED
WITH A FLOOD ADVISORY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE THROUGH FLOODED AREAS. THIS IS THE CAUSE OF MOST FLOOD
RELATED DEATHS IN WASHINGTON.
&&
WAC067-311553-
/O.CAN.KSEW.FL.W.0021.000000T0000Z-120401T0535Z/
/CGMW1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
823 AM PDT SAT MAR 31 2012
THE FLOOD WARNING IS CANCELLED FOR
THE CHEHALIS RIVER NEAR GRAND MOUND
* AT 8:00 AM THIS MORNING THE STAGE WAS 13.7 FEET.
* FLOOD STAGE IS 14.0 FEET.
* FORECAST...THE RIVER CRESTED AT 14.0 FEET LAST NIGHT AND WILL
CONTINUE TO SLOWLY RECEDE.
* IMPACT...AT 12.5 FEET...THE CHEHALIS RIVER IN THURSTON COUNTY WILL
LOCALLY SPILL OUT OF ITS BANKS INTO NEARBY FIELDS AND OVER A FEW
ROADS.
$$The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 9:50 PM PDT | Flood Watch | SEW | Grays Harbor, Thurston | 38 hr |
| Mar 30, 8:37 AM PDT | Small Craft Advisory | SEW | 12 hr | |
| Mar 30, 2:48 PM PDT | Small Craft Advisory | SEW | 56 hr |
Nearby
River Flood Warnings in Washington, 2012Every river flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.