Alert archive / Oregon / Winter Storm Warnings in 2012
Winter Storm Warning 9, NWS Pendleton, OR
NWS Pendleton, OR issued this winter storm warning at Apr 4, 2012, 8:21 AM PDT for Umatilla County, Union County, Wallowa County, Oregon. It was in force for 6 hr. 10 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 4, 2012, 8:21 AM PDT (15:21 UTC)
- Expired
- Apr 4, 2012, 2:03 PM PDT
- In force
- 6 hr
- Issued by
- NWS Pendleton, OR
Counties Umatilla County, OR, Union County, OR, Wallowa County, OR
The radar
The Pendleton radar (KPDT), 72 km from the middle of the area, began a volume at 15:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 4, 8:30 AM PDT | HEAVY SNOW 5 | Enterprise, OR | NWS EMPLOYEE DRIVING EAST THROUGH ENTERPRISE OBSERVED 4 TO 5 INCHES OF SNOW ACCUMULATION, AND IT IS STILL SNOWING. |
| Apr 4, 9:00 AM PDT | HEAVY SNOW 4 | 4 Sw Athena, OR | RECEIVED 4 INCHES SNOW THIS MORNING. CURRENTLY 40 DEGREES AND MODERATE SNOW. ELEV 1500 FT. UM-502. |
| Apr 4, 9:00 AM PDT | HEAVY SNOW 6 | 9 Sw Ski Bluewood, OR | FELL IN LESS THAN 12 HRS. MILK SHAKES SNOTEL. |
| Apr 4, 9:00 AM PDT | HEAVY SNOW 8 | Cove, OR | COOP OBSERVER SENT IN A PICTURE OF HER SNOW STICK AND REPORTED UP TO 8 INCHES OF ACCUMULATION BY 9 A.M. |
| Apr 4, 9:30 AM PDT | HEAVY SLEET 5 | 5 E Joseph, OR | NWS EMPLOYEE DRIVING EAST FROM JOSEPH TOWARD IMNAHA MEASURED 5 INCHES OF ACCUMULATION 5 MILES EAST OF JOSEPH. |
| Apr 4, 10:23 AM PDT | HEAVY SNOW 4 | 3 N Elgin, OR | UPDATED OBSERVATION, THE OBSERVER MEASURED 4 INCHES OF ACCUMULATION IN UNDER 12 HOURS. THE SNOW FALL IS DIMINISHING. |
| Apr 4, 10:23 AM PDT | HEAVY SNOW 6.5 | Joseph, OR | THE COOP OBSERVER MEASURED 6.5 INCHES OF NEW SNOW IN 24 HOURS. |
| Apr 4, 11:35 AM PDT | HEAVY SNOW 7 | 3 Nne Bingham Springs, OR | THE OBSERVER MEASURED 6-7 INCHES OF SNOW IN LESS THAN 12 HOURS. IT IS STILL SNOW HEAVY AND THE WIND IS 10-15 MPH WITH HIGHER GUSTS. CURRENTLY 28 DEGREES. |
| Apr 4, 11:39 AM PDT | SNOW 0 | 15 E Pendleton, OR | OREGON HIGHWAY PATROL CONFIRMED 3 CARS SLID OFF THE ROAD ON I-84 ABOUT 15 MILES EAST OF PENDLETON DUE TO WEATHER IMPACTS ON ROAD CONDITIONS. |
| Apr 4, 11:39 AM PDT | HEAVY SNOW 7 | 2 N Meacham, OR | THE OBSERVER MEASURED 7 INCHES OF SNOW IN 12 HOURS. 5-6 SINX INCHES FELL AFTER 6 A.M. IT IS CURRENTLY 41 DEGREES AND LIGHTLY SNOWING. THE SNOW IS REALLY WET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 3.4 hours before the alert went out and 256 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2384 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
943 WWUS46 KPDT 041521 WSWPDT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 821 AM PDT WED APR 4 2012 ...A LATE SEASON WINTER STORM IS EXPECTED IN THE EASTERN MOUNTAINS TODAY... .A STRONG STORM SYSTEM WILL BRING MODERATE TO HEAVY SNOW TO THE MOUNTAINS OF EASTERN OREGON AND SOUTHEAST WASHINGTON TODAY. A WESTERLY UPSLOPE FLOW WILL CAUSE MOUNTAIN SNOW SHOWERS THROUGHOUT THE DAY TODAY THROUGH THIS EVENING. SNOW SHOWERS WILL DIMINISH LATER TONIGHT. ORZ049-050-042330- /O.UPG.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ /O.NEW.KPDT.WS.W.0009.120404T1521Z-120405T0600Z/ GRANDE RONDE VALLEY-WALLOWA COUNTY- INCLUDING THE CITIES OF...COVE...ELGIN...LA GRANDE...ENTERPRISE... JOSEPH...WALLOWA 821 AM PDT WED APR 4 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 11 PM PDT THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * TIMING: HEAVY SNOW IS EXPECTED THROUGH THE MORNING WITH NUMEROUS SNOW SHOWERS THIS AFTERNOON AND EVENING. * LOCATIONS INCLUDE: COVE...ELGIN...LA GRANDE...UNION... ENTERPRISE...JOSEPH...WALLOWA * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOW ACCUMULATIONS ARE EXPECTED. SNOWFALL INTENSITIES WILL BE HEAVY ENOUGH TO SUBSTANTIALLY REDUCE VISIBILITIES AT TIMES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ503-042330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ SOUTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...LONG CREEK...UKIAH 821 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4500 FEET. * LOCATIONS INCLUDE: LONG CREEK...UKIAH * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ505-506-042330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ JOHN DAY BASIN-OCHOCO-JOHN DAY HIGHLANDS- INCLUDING THE CITIES OF...DAYVILLE...JOHN DAY...MITCHELL... MONUMENT...SPRAY...BROTHERS...PAULINA...PRAIRIE CITY...SENECA 821 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 2500 FEET. * LOCATIONS INCLUDE: BROTHERS...PAULINA...PRAIRIE CITY... SENECA...DAYVILLE...JOHN DAY...MITCHELL...MONUMENT...SPRAY * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ502-WAZ030-042330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON- NORTHWEST BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...MEACHAM...TOLLGATE... SKI BLUEWOOD RESORT 821 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 8 INCHES. * LOCATIONS INCLUDE: MEACHAM...TOLLGATE...SKI BLUEWOOD RESORT * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS ESPECIALLY ALONG INTERSTATE 84 IN THE BLUE MOUNTAINS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ507-WAZ029-042000- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120404T2000Z/ FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...PENDLETON...PILOT ROCK...DAYTON... WAITSBURG 821 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON ABOVE 1000 FEET... A WINTER WEATHER ADVISORY ABOVE 1000 FEET REMAINS IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON. * SNOW ACCUMULATIONS: 2 TO 4 INCHES ABOVE 1500 FEET...1 TO 2 INCHES ABOVE 1000 FEET. * TIMING: SNOW WILL CHANGE TO RAIN SHOWERS THIS AFTERNOON. * LOCATIONS INCLUDE: ADAMS...ATHENA...WESTON...WALLA WALLA. * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$
3 follow-up statements
739 WWUS46 KPDT 041605 WSWPDT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 905 AM PDT WED APR 4 2012 ...A LATE SEASON WINTER STORM IS EXPECTED IN THE EASTERN MOUNTAINS TODAY... .A STRONG STORM SYSTEM WILL BRING MODERATE TO HEAVY SNOW TO THE MOUNTAINS OF EASTERN OREGON AND SOUTHEAST WASHINGTON TODAY. A WESTERLY UPSLOPE FLOW WILL CAUSE MOUNTAIN SNOW SHOWERS THROUGHOUT THE DAY TODAY THROUGH THIS EVENING. SNOW SHOWERS WILL DIMINISH LATER TONIGHT. ORZ502-050015- /O.UPG.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ /O.EXA.KPDT.WS.W.0009.000000T0000Z-120405T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...MEACHAM...TOLLGATE 905 AM PDT WED APR 4 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 11 PM PDT THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SNOW ACCUMULATIONS: 5 TO 9 INCHES. * LOCATIONS INCLUDE: MEACHAM...TOLLGATE...SKI BLUEWOOD RESORT * TIMING: HEAVY SNOW IS EXPECTED THROUGH THE MORNING WITH NUMEROUS SNOW SHOWERS EXPECTED THIS AFTERNOON AND EVENING. * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS ESPECIALLY ALONG INTERSTATE 84 IN THE BLUE MOUNTAINS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOW ACCUMULATIONS ARE EXPECTED. SNOWFALL INTENSITIES WILL BE HEAVY ENOUGH TO SUBSTANTIALLY REDUCE VISIBILITIES AT TIMES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ049-050-050015- /O.CON.KPDT.WS.W.0009.000000T0000Z-120405T0600Z/ GRANDE RONDE VALLEY-WALLOWA COUNTY- INCLUDING THE CITIES OF...COVE...ELGIN...LA GRANDE...ENTERPRISE... JOSEPH...WALLOWA 905 AM PDT WED APR 4 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * TIMING: HEAVY SNOW IS EXPECTED THROUGH THE MORNING WITH NUMEROUS SNOW SHOWERS THIS AFTERNOON AND EVENING. * LOCATIONS INCLUDE: COVE...ELGIN...LA GRANDE...UNION... ENTERPRISE...JOSEPH...WALLOWA * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOW ACCUMULATIONS ARE EXPECTED. SNOWFALL INTENSITIES WILL BE HEAVY ENOUGH TO SUBSTANTIALLY REDUCE VISIBILITIES AT TIMES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ503-050015- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ SOUTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...LONG CREEK...UKIAH 905 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4500 FEET. * LOCATIONS INCLUDE: LONG CREEK...UKIAH * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ505-506-050015- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ JOHN DAY BASIN-OCHOCO-JOHN DAY HIGHLANDS- INCLUDING THE CITIES OF...DAYVILLE...JOHN DAY...MITCHELL... MONUMENT...SPRAY...BROTHERS...PAULINA...PRAIRIE CITY...SENECA 905 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 2500 FEET. * LOCATIONS INCLUDE: BROTHERS...PAULINA...PRAIRIE CITY... SENECA...DAYVILLE...JOHN DAY...MITCHELL...MONUMENT...SPRAY * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ WAZ030-050015- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ NORTHWEST BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITY OF...SKI BLUEWOOD RESORT 905 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 8 INCHES. * LOCATIONS INCLUDE: MEACHAM...TOLLGATE...SKI BLUEWOOD RESORT * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS ESPECIALLY ALONG INTERSTATE 84 IN THE BLUE MOUNTAINS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ507-WAZ029-042000- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120404T2000Z/ FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...PENDLETON...PILOT ROCK...DAYTON... WAITSBURG 905 AM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON ABOVE 1000 FEET... A WINTER WEATHER ADVISORY ABOVE 1000 FEET REMAINS IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON. * SNOW ACCUMULATIONS: 2 TO 4 INCHES ABOVE 1500 FEET...1 TO 2 INCHES ABOVE 1000 FEET. * TIMING: SNOW WILL CHANGE TO RAIN SHOWERS THIS AFTERNOON. * LOCATIONS INCLUDE: ADAMS...ATHENA...WESTON...WALLA WALLA. * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$
598 WWUS46 KPDT 041921 WSWPDT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 1221 PM PDT WED APR 4 2012 ...A LATE SEASON WINTER STORM IS EXPECTED IN THE EASTERN MOUNTAINS TODAY... .A STRONG STORM SYSTEM WILL BRING MODERATE TO HEAVY SNOW TO THE MOUNTAINS OF EASTERN OREGON AND SOUTHEAST WASHINGTON TODAY. A WESTERLY UPSLOPE FLOW WILL CAUSE MOUNTAIN SNOW SHOWERS THIS AFTERNOON AND EVENING. SNOW SHOWERS WILL DIMINISH LATER TONIGHT. ORZ507-WAZ029-042030- /O.CAN.KPDT.WW.Y.0014.000000T0000Z-120404T2000Z/ FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...PENDLETON...PILOT ROCK...DAYTON... WAITSBURG 1221 PM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE WINTER WEATHER ADVISORY. THE THREAT FOR SIGNIFICANT SNOW HAS ENDED. SCATTERED RAIN AND SNOW SHOWERS WILL CONTINUE THIS AFTERNOON. $$ ORZ049-050-050330- /O.CON.KPDT.WS.W.0009.000000T0000Z-120405T0600Z/ GRANDE RONDE VALLEY-WALLOWA COUNTY- INCLUDING THE CITIES OF...COVE...ELGIN...LA GRANDE...ENTERPRISE... JOSEPH...WALLOWA 1221 PM PDT WED APR 4 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * TIMING: NUMEROUS SNOW SHOWERS ARE EXPECTED THIS AFTERNOON. * LOCATIONS INCLUDE: COVE...ELGIN...LA GRANDE...UNION... ENTERPRISE...JOSEPH...WALLOWA * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOW ACCUMULATIONS ARE EXPECTED. SNOWFALL INTENSITIES WILL BE HEAVY ENOUGH TO SUBSTANTIALLY REDUCE VISIBILITIES AT TIMES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ502-050330- /O.CON.KPDT.WS.W.0009.000000T0000Z-120405T0600Z/ NORTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...MEACHAM...TOLLGATE 1221 PM PDT WED APR 4 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 5 TO 9 INCHES. * LOCATIONS INCLUDE: MEACHAM...TOLLGATE. * TIMING: NUMEROUS SNOW SHOWERS ARE EXPECTED THIS AFTERNOON. * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS ESPECIALLY ALONG INTERSTATE 84 IN THE BLUE MOUNTAINS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SIGNIFICANT SNOW ACCUMULATIONS ARE EXPECTED. SNOWFALL INTENSITIES WILL BE HEAVY ENOUGH TO SUBSTANTIALLY REDUCE VISIBILITIES AT TIMES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ503-050330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ SOUTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...LONG CREEK...UKIAH 1221 PM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 7 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 4500 FEET. * LOCATIONS INCLUDE: LONG CREEK...UKIAH * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ ORZ505-506-050330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ JOHN DAY BASIN-OCHOCO-JOHN DAY HIGHLANDS- INCLUDING THE CITIES OF...DAYVILLE...JOHN DAY...MITCHELL... MONUMENT...SPRAY...BROTHERS...PAULINA...PRAIRIE CITY...SENECA 1221 PM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 2 TO 5 INCHES. * ELEVATION: THE HEAVIEST ACCUMULATIONS WILL BE ABOVE 2500 FEET. * LOCATIONS INCLUDE: BROTHERS...PAULINA...PRAIRIE CITY... SENECA...DAYVILLE...JOHN DAY...MITCHELL...MONUMENT...SPRAY * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. WINDS COULD CAUSE LOCAL BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$ WAZ030-050330- /O.CON.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ NORTHWEST BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITY OF...SKI BLUEWOOD RESORT 1221 PM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * SNOW ACCUMULATIONS: 4 TO 8 INCHES. * LOCATIONS INCLUDE: SKI BLUEWOOD RESORT * WINDS: LOCAL WEST WINDS OF 10 TO 20 MPH. * IMPACTS: SNOW COVERED ROADWAYS WILL MAKE TRAVEL HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS... ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS. MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.WEATHER.GOV/PENDLETON. && $$
500 WWUS46 KPDT 042103 WSWPDT URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 203 PM PDT WED APR 4 2012 ORZ049-050-502-042215- /O.CAN.KPDT.WS.W.0009.000000T0000Z-120405T0600Z/ GRANDE RONDE VALLEY-WALLOWA COUNTY- NORTHERN BLUE MOUNTAINS OF OREGON- INCLUDING THE CITIES OF...COVE...ELGIN...LA GRANDE...ENTERPRISE... JOSEPH...WALLOWA...MEACHAM...TOLLGATE 203 PM PDT WED APR 4 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE WINTER STORM WARNING. THE THREAT FOR HEAVY SNOW HAS ENDED. SCATTERED SNOW SHOWERS ARE EXPECTED TONIGHT WITH SOME LIGHT ACCUMULATION POSSIBLE. $$ ORZ503-505-506-WAZ030-042215- /O.CAN.KPDT.WW.Y.0014.000000T0000Z-120405T0600Z/ SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO- JOHN DAY HIGHLANDS-NORTHWEST BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...LONG CREEK...UKIAH...DAYVILLE... JOHN DAY...MITCHELL...MONUMENT...SPRAY...BROTHERS...PAULINA... PRAIRIE CITY...SENECA...SKI BLUEWOOD RESORT 203 PM PDT WED APR 4 2012 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE WINTER WEATHER ADVISORY. THE THREAT FOR HEAVY SNOW HAS ENDED. SCATTERED SNOW SHOWERS ARE EXPECTED TONIGHT WITH SOME LIGHT ACCUMULATION POSSIBLE. $$
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Apr 4, 6:58 AM PDT, 1 hour 23 minutes earlier.
Area forecast discussion, Apr 4, 6:58 AM PDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
658 AM PDT WED APR 4 2012
UPDATED LONG TERM DISCUSSION
.SHORT TERM...TODAY THROUGH FRIDAY...A DEEP SOUTHERLY FLOW AHEAD OF
A LARGE UPPER TROUGH ALONG THE COAST IS PULLING ABUNDANT MOISTURE
NORTHWARD INTO THE COUNTRY WARNING AREA (CWA) AT THIS TIME. THERE
HAS BEEN SOME LIGHT RAIN AND MOUNTAIN SNOW REPORTED ACROSS THE BLUE
MOUNTAINS AND THE LOWER ELEVATIONS NORTH OF THE BLUES...AS WELL AS
IN CENTRAL AND NORTH CENTRAL OREGON. PRECIPITATION AMOUNTS HAVE BEEN
LIGHT SO FAR. HOWEVER...AM EXPECTING THE SNOWFALL IN THE BLUE
MOUNTAINS TO INCREASE TODAY IN INTENSITY AND COVERAGE AS THE UPPER
TROUGH CONTINUES TO SLOWLY PUSH EASTWARD ACROSS EASTERN OREGON AND
WASHINGTON. WITH THIS UPPER TROUGH WILL ALSO BE INCREASING
INSTABILITY THIS AFTERNOON AND EARLY EVENING BOTH TODAY AND AGAIN ON
THURSDAY DUE TO VERTICAL MIXING OF THE HIGHER WINDS ALOFT DOWNWARD
RESULTING IN BREEZY TO LOCALLY WINDY CONDITIONS AT TIMES. THERE ALSO
BE AN ISOLATED THUNDERSTORM OR TWO WHICH MAY PRODUCE SMALL HAIL AND
GUSTY WINDS MAINLY ACROSS THE LOWER COLUMBIA BASIN AND BLUE MOUNTAIN
FOOTHILLS WHERE THERE WILL BE THE FEWEST CLOUDS AND THE MOST
HEATING. CLOUDY SKIES IN THE MOUNTAINS WILL LIKELY REDUCE OR PREVENT
THE CHANCE OF AFTERNOON OR EVENING THUNDERSTORMS. A WINTER WEATHER
ADVISORY IS IN EFFECT FOR SNOW TODAY FOR ALL AREAS FROM THE BLUE
MOUNTAINS EASTWARD AND SOUTHWARD INCLUDING THE JOHN DAY HIGHLANDS.
HOWEVER...THE ADVISORY DOES NOT INCLUDE CENTRAL OREGON/NORTH CENTRAL
OREGON DUE TO A WESTERLY FLOW THERE OFF THE CASCADES WHICH WILL KEEP
PRECIPITATION AMOUNTS DOWN. THE WINTER WEATHER ADVISORY IS IN EFFECT
TODAY AND THIS EVENING UNTIL 11 PM PDT SO FAR. THE UPPER TROUGH WILL
BE SLOW TO MOVE ACROSS THE REGION AND WILL BE WITH US FOR THE NEXT
FEW DAYS...UNTIL WEDNESDAY. THIS WILL CAUSE THE ATMOSPHERE TO BECOME
MORE UNSTABLE AGAIN EACH AFTERNOON WITH THE POSSIBILITY OF ISOLATED
THUNDERSTORMS AGAIN THURSDAY AND FRIDAY AFTERNOON. CONFIDENCE IS
ONLY MARGINAL FOR FRIDAY THOUGH...SO HAVE DECIDED TO NOT INCLUDE
THUNDERSTORMS ON FRIDAY JUST YET. CONDITIONS WILL BEGIN TO DRY OUT
AS THE UPPER TROUGH WEAKENS ON FRIDAY WITH DECREASING SHOWERS.
TEMPERATURES WILL BE RUNNING ABOUT 5 TO 8 DEGREES BELOW NORMAL IN
THE SHORT TERM PERIOD. 88
.LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...THE LATEST 00Z MODEL
RUNS ARE CONSISTENT WITH THE 00Z RUNS 24 HOURS AGO IN SHOWING A
TREND OF INCREASING HEIGHT CONTOURS ON THE 500 MB PRESSURE-SURFACE
FRIDAY NIGHT, WHICH INDICATES INCREASING PRESSURE IN THE MID LEVELS.
AN UPPER LEVEL RIDGE OF HIGH PRESSURE THEN BUILDS OVER THE REGION
OVER THE WEEKEND FOR DRY CONDITIONS THROUGH SUNDAY NIGHT. THE DRY
CONDITIONS WILL PERSIST THROUGH TUESDAY NIGHT AS THE MID/UPPER
RIDGE CONTINUES AMPLIFYING ALONG THE ROCKIE MOUNTAINS WITH THE RIDGE
AXIS EXTENDING NORTHWARD INTO WESTERN CANADA THROUGH TUESDAY. THE
RIDGE WILL CAUSE WINDS ALOFT OVER THE FORECAST AREA TO BACK TO THE
SOUTH OVER BY TUESDAY AFTERNOON, WHICH MAY ALLOW SOME MOISTURE TO BE
TRANSPORTED NORTHWARD INTO THE FORECAST AREA ON TUESDAY AND
WEDNESDAY FOR A CHANCE OF PRECIPITATION BOTH DAYS, MAINLY IN THE
OREGON PORTION OF THE FORECAST AREA. POLAN
&&
.AVIATION..12Z TAFS...INFRARED SATELLITE IMAGERY LOOP SHOWS A
NEGATIVELY TILTED MID/UPPER LEVEL SHORT WAVE MOVING NORTH INTO
CENTRAL OREGON AT 400 AM THIS MORNING. SUBSIDENCE SOUTH OF THE
SHORT WAVE HAS CUT OFF SHOWERS AT KRDM AND KBDN FOR THE REMAINDER
OF THIS MORNING. HOWEVER, SHOWERS WILL CONTINUE AT KPSC UNTIL AROUND
DAYBREAK AND PERSIST AT KALW AND KPDT THROUGH MOST OF THIS AFTERNOON
AND THEN END BY AROUND 05/00Z. IFR/MVFR CIGS WILL CONTINUE AT KPDT
AND KALW UNTIL 17-18Z THIS MORNING. WINDS AT KPDT WILL INCREASE BY
LATE THIS MORNING, BECOMING WEST AROUND 20 KTS WITH GUSTS TO 30 KTS.
MOST OTHER SITES WILL SEE WINDS OF 13-20 KTS THROUGH THIS AFTERNOON.
UNSTABLE CONDITIONS WILL DEVELOP THIS AFTERNOON WITH MOST SITES
SEEING CONVECTIVE SHOWERS. SOME OF THESE SHOWERS MAY DEVELOP
SUSTAINED UPDRAFTS, WHICH COULD BECOME STRONG ENOUGH TO PRODUCE
SMALL HAIL AND POSSIBLY A FEW RUMBLES OF THUNDER. ALL TAFS INCLUDE
CUMULONIMBUS CLOUDS THIS AFTERNOON TO INDICATE THE POTENTIAL FOR
STRONG CONVECTION, CUMULONIMBUS, AND THEREFORE POSSIBLE ISOLATED
THUNDERSTORMS THIS AFTERNOON. ANY THUNDERSTORMS THAT DO OCCUR WILL
HAVE THE POTENTIAL FOR SMALL HAIL UP TO 3/4 OF AN INCH IN DIAMETER.
POLAN
&&
.PRELIMINARY POINT TEMPS/POPS...
PDT 51 31 50 31 / 70 40 40 30
ALW 51 34 52 35 / 80 40 40 30
PSC 57 33 55 32 / 30 20 20 20
YKM 53 30 52 30 / 30 20 20 20
HRI 55 33 54 31 / 40 20 20 20
ELN 52 29 52 30 / 30 20 20 20
RDM 46 24 45 22 / 40 40 30 30
LGD 43 23 42 27 / 70 70 60 40
GCD 40 24 39 25 / 70 70 60 30
DLS 53 34 53 33 / 30 20 30 20
&&
.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WINTER WEATHER ADVISORY UNTIL 11 PM PDT THIS EVENING ORZ505-506.
WINTER WEATHER ADVISORY UNTIL 11 PM PDT THIS EVENING ORZ502.
WINTER WEATHER ADVISORY UNTIL 11 PM PDT THIS EVENING ORZ503.
WINTER WEATHER ADVISORY UNTIL 11 PM PDT THIS EVENING ORZ049-050.
WA...WINTER WEATHER ADVISORY UNTIL 11 PM PDT THIS EVENING WAZ030.
&&
THREAT INDEX
TODAY : YELLOW
THURSDAY : GREEN
FRIDAY : GREEN
GREEN: NONE OR LIMITED NEED FOR WATCHES, WARNINGS, OR ADVISORIES.
YELLOW: A FEW WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT.
RED: NUMEROUS WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT.
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
88/99/99Hazardous weather outlook, Apr 4, 6:01 AM PDT, 2 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
601 AM PDT WED APR 4 2012
ORZ041-042-044-049-050-502-503-505>509-WAZ024-026>030-520-521-
051300-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO-
JOHN DAY HIGHLANDS-
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
EAST SLOPES OF THE OREGON CASCADES-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS-
601 AM PDT WED APR 4 2012
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
THUNDERSTORMS
SIMCOE HIGHLANDS, EASTERN COLUMBIA RIVER GORGE OF WASHINGTON,
KITTITAS VALLEY, YAKIMA VALLEY, LOWER COLUMBIA BASIN OF
WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON,
EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH CENTRAL OREGON,
LOWER COLUMBIA BASIN OF OREGON, FOOTHILLS OF THE NORTHERN BLUE
MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON,
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, JOHN DAY
BASIN, OCHOCO-JOHN DAY HIGHLANDS
SNOW
NORTHWEST BLUE MOUNTAINS OF WASHINGTON, GRANDE RONDE VALLEY,
WALLOWA COUNTY, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN
BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY
HIGHLANDS
A LARGE PACIFIC STORM WILL CONTINUE TO MOVE INLAND TODAY AND TONIGHT
BRINGING RAIN IN THE LOWER ELEVATIONS AND SNOW IN THE MOUNTAINS. THE
MOUNTAINOUS AREAS FROM THE BLUES EASTWARD AND SOUTHWARD WILL HAVE
ENOUGH SNOW TODAY TO WARRANT WINTER WEATHER ADVISORIES IN EFFECT.
PLEASE REFER TO NWS HAZARD PRODUCT ID PDXWSWPDT FOR MORE DETAILS.
THE SNOW WILL TAPER OFF TO LIGHT SNOW SHOWERS BY LATE THIS EVENING.
IN THE LOWER ELEVATIONS OF THE FORECAST AREA THE PRECIPITATION MAY
END FOR A WHILE LATE THIS MORNING WITH SOME BREAKS IN THE OVERCAST.
THIS MAY ALLOW ENOUGH HEATING BY THIS AFTERNOON FOR POSSIBLE
THUNDERSTORM DEVELOPMENT FROM THE BLUE MOUNTAIN FOOTHILLS WEST AND
NORTHWARD...BUT EXCLUDING THE EAST SLOPES OF THE WASHINGTON
CASCADES. SOME STORMS MAY PRODUCT SMALL HAIL...GUSTY WINDS AND HEAVY
RAIN.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
THUNDERSTORMS THURSDAY
SIMCOE HIGHLANDS, EASTERN COLUMBIA RIVER GORGE OF WASHINGTON,
KITTITAS VALLEY, YAKIMA VALLEY, LOWER COLUMBIA BASIN OF
WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON,
EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH CENTRAL OREGON,
LOWER COLUMBIA BASIN OF OREGON, GRANDE RONDE VALLEY, FOOTHILLS
OF THE NORTHERN BLUE MOUNTAINS OF OREGON, FOOTHILLS OF THE
SOUTHERN BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN
THE ATMOSPHERE WILL CONTINUE TO BE UNSTABLE ON THURSDAY. THERE WILL
BE MORE HEATING DUE TO GREATER AMOUNTS OF SUNSHINE WHICH WILL
INCREASE THE THREAT OF THUNDERSTORM FORMATION AGAIN IN THE AREAS
LISTED ABOVE. SOME STORMS MAY PRODUCT SMALL HAIL...GUSTY WINDS AND
HEAVY RAIN.
UNSETTLED SHOWERY AND COOL WEATHER WILL THEN PERSIST INTO FRIDAY.
HIGH PRESSURE WILL BRING DRIER AND WARMER WEATHER UNDER A HIGH
PRESSURE RIDGE SATURDAY THROUGH TUESDAY. UNSETTLED SHOWERY
CONDITIONS WILL RETURN BY WEDNESDAY OF NEXT WEEK.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED.
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:
WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML
ALL LETTERS IN THE ABOVE URL ARE LOWER CASE.Nearby
Winter Storm Warnings in Oregon, 2012Every winter storm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.