Alert archive / Oregon / Flash Flood Warnings in 1996

Flash Flood Warning 14, NWS Pendleton, OR

November 19, 1996Crook County, Deschutes County, Oregon

NWS Pendleton, OR issued this flash flood warning at Nov 19, 1996, 3:45 AM PST for Crook County, Deschutes County, Oregon. It was in force for 4 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: Nov 19, 1996, 3:45 AM PST (11:45 UTC)
Expired: Nov 19, 1996, 8:00 AM PST
In force: 4 hr
Issued by: NWS Pendleton, OR
Area: Whole counties

Counties Crook County, OR, Deschutes County, OR

The nearest sounding before it

Salem/Mcnary, OR (KSLE), launched 00:00Z, 11.8 hours before the alert went out and 201 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: 512 m above ground
0-6 km bulk shear: 109 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Nov 19, 1:46 AM PST, 1 hour 59 minutes earlier.

Area forecast discussion, Nov 19, 1:46 AM PST, 1 hour 59 minutes before

NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
145 AM PST TUE NOV 19 1996

FOR TODAY...MIXED RAIN AND SNOW IN THE HOME ZONES IS FCST TO TURN
TO SCATTERED MAINLY MOUNTAIN SNOW SHOWERS AROUND 21Z.  IN THE MID
DAY HOWEVER A WARMUP TO THE 40S FOR THE BASIN AND FOOTHILLS...50S
IN CENTRAL OREG AND 60S IN SE OREG...WILL ASSIST SOME SNOW MELT
FROM OCHOCOS TO BAKER CO.  WALLOWA CO OREG INTO COLUMBIA CO WASH
SHOULD STAY IN THE U30S AND WITH 1-2 FEET OF SNOWFALL LITTLE MELT
IS EXPECTED.  SO FFS LOOKS BEST ACROSS ORZONES 017>020 EXCEPT
WALLOWA CO.  CALLS TO SHERIFFS IN FFS AREA OF CENTRAL OREG
INDICATED RISES ON CREEKS BUT NO DMMG OR FLOODING. WOULD LIKE TO
KEEP FFS UP UNTIL 15Z FROM GRANT CO THROUGH BAKER CO BECAUSE THE
EXPECTED LATE MORNING RAIN AND MID DAY WARM UP TO AROUND 50. THE
COMBO SHOULD MELT SNOW AND BRING QUICK RISES TO STREAMS FOR
PORTIONS OF THE HOME ZONES.
BY COUNTY...DESCHUTES...CROOK...WHEELER...GRANT...BAKER.
SRN MORROW AND SE UMATILLA.

GUSTY SW WINDS IN EXPOSED LOCATIONS OF 40-50KTS ARE LIKELY AHEAD OF
THE WARM FNT ESPECIALY FROM THE OCHOCOS/STRAWBERRYS THROUGH THE
BLUES AND INTO BAKER CO. FOR THE FOOTHILLS...20G30 IN THE MID DAY
IS EXPECTED.

SATL IMAGERY AT 830Z BEGINNING TO SHOW AMPLIFICATION AND SHORTENING
OF THE WAVELENGTH ASSOCIATED WITH PAC NW RAIN/SNOW AND WIND STORM
WHILE COLD ARCTIC AIR REMAINS ENTRENCHED OVER MONT AND CAN.  SO
AGREE WITH 00Z RUNS THAT TIL 00Z THE SFC LOW WILL MOVE ENE...REFORM
AROUND SNAKE/COLUMBIA CONFLUENCE AREA THEN AFT 00Z BE SHUNTED
SEWARD THROUGH NRN WYO.  TROPICAL MOISTURE SOURCE DECREASING WHILE
WESTERN EDGE OF BAROCLINIC ZONE ESTIMATED TO ALONG THE EAST SLOPES
OF THE OREG CASCADES BY 15-16Z.  THOMPSON

PDT +413 ALW +413 PSC +412 YKM +211

.KPDT...VCP 11/CSR 31...OPERATIONAL.

.PDT...WSW...ADVY TIL 18Z FOR ORZ16>18-ORZ020 HEAVY SNOW WARNING
       FOR ORZ019-WAZ030.
       FFW...URBAN/SMALL STRM FLOOVD WARNING BY COUNTY...
       DESCHUTES...CROOK...WHEELER...GRANT...BAKER.
       SRN MORROW AND SE UMATILLA.

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 18, 6:30 PM PST	Flash Flood Warning	PDT	Crook, Grant, Jefferson, Wheeler	9 hr
Nov 18, 6:30 PM PST	Flash Flood Warning	PDT	Deschutes	9 hr
Nov 19, 3:45 AM PST	Flash Flood Warning	PDT	Grant, Morrow, Umatilla	4 hr
Nov 19, 3:45 AM PST	Flash Flood Warning	PDT	Wheeler	4 hr

Nearby

Flash Flood Warnings in Oregon, 1996 Every flash flood warning in 1996

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.