Alert archive / Washington / Flash Flood Warnings in 1997

Flash Flood Warning 2, NWS Pendleton, OR

January 1, 1997Columbia County, Washington

NWS Pendleton, OR issued this flash flood warning at Jan 1, 1997, 5:55 AM PST for Columbia County, Washington. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 1, 1997, 5:55 AM PST (13:55 UTC)
Expired: Jan 1, 1997, 12:00 PM PST
In force: 6 hr
Issued by: NWS Pendleton, OR
Area: Whole counties

County Columbia County, WA

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 1.9 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1187 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: -169 m²/s²
0-3 km storm-relative helicity: -162 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPDT 011351
FFWPDT
WAC013-012000-
 
BULLETIN - EAS ACTIVATION REQUESTED
SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
555 AM PST WED JAN 1 1997
 
THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A
SMALL STREAM FLOOD WARNING EFFECTIVE UNTIL NOON PST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST WASHINGTON
 
   ...COLUMBIA COUNTY
 
COLUMBIA COUNTY EMERGENCY MANAGEMENT HAS REPORTED THAT PATIT CREEK IS
FLOODING WITH SANDBAGGING IN PROGRESS. OTHER SMALL STREAMS THROUGHOUT
COLUMBIA COUNTY WILL RISE TO NEAR OR ABOVE FLOOD STAGE TODAY. SNOW MELT
AND SCATTERED SHOWERS WILL CONTRIBUTE TO MORE FLOODING THIS AFTERNOON.
 
RESIDENTS IN COLUMBIA COUNTY SHOULD BE PREPARED FOR RISING STREAM LEVELS
TODAY.  SEEK HIGHER GROUND IF FLOODING THREATENS YOUR AREA.
 
SMITH/TOBIN

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pendleton, OR wrote its last area forecast discussion before this flash flood warning went out at Jan 1, 2:38 AM PST, 3 hours 17 minutes earlier.

Area forecast discussion, Jan 1, 2:38 AM PST, 3 hours 17 minutes before

NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 AM PST WED JAN 1 1997

FROPA 0830Z WITH STG WINDS AHD OF FNT. KALW REPORTED SUSTAINED
WINDS 60KT. WINDS BACKED OFF CONSIDERABLY BEHIND FNT BUT WUD KEEP
HIGH WIND WARNING IN MTNS UNTIL AFTER FROPA THERE. RA AND +RA
REPORTED AT KPDT WITH .20 IN 1 HOUR. MDL QPF .25-.50 FROM 06Z-18Z
AND THAT ACCEPTED. RA TURNING TO -SHRA IN UNSTABLE AIR BEHIND FNT
BUT ADDITIONAL PRECIP SHUD BE LTD. LUKS LIKE RIVERS WILL COME UP
AGN AT MOST E SIDE LOCATIONS. MDLS SIMILAR BRINGING NEXT SYS TO CST
THURSDAY NIGHT/FRIDAY MORNING. NEVER ENDING SUB-TROPICAL MSTR TAP
WILL MAKE THIS ONE WET AGAIN. SNOW LEVEL DROPS BLO 3K FT BY 12Z FRI
SHUD HELP PUT AN END TO RUN-OFF BUT NOT BEFORE ADDITIONAL RA IN
MTNS. TOBIN

PDT 7464  ALW 7464  PSC 5343  YKM 7454

.PDT...SEE FLSPDX AND FLWSEA FOR FLOOD WRNGS/WATCHES/ADVYS.
       HIGH WIND WARNING FOR NE MTNS TODAY.

.KhPDT...VCP 21/CSR-21...OPERATIONAL.

The office that day

Everything else NWS Pendleton, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 1, 5:40 AM PST	Flash Flood Warning	PDT	Yakima	9 hr
Jan 1, 7:07 AM PST	Flash Flood Warning	PDT	Benton, Walla Walla	7 hr
Jan 1, 11:02 AM PST	Flash Flood Warning	PDT	Klickitat	6 hr
Jan 1, 11:45 AM PST	Flash Flood Warning	PDT	Columbia, Walla Walla	5 hr

Nearby

Flash Flood Warnings in Washington, 1997 Every flash flood warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.