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Dense Fog Advisory 0021
Issued by the Pendleton Forecast Office

Action Issued Starts Expiration
New 2025-12-25 07:03:39 2025-12-25 07:03:00 2025-12-25 12:00:00
Area Extended 2025-12-25 07:19:10 2025-12-25 12:00:00
Continued 2025-12-25 07:19:10 2025-12-25 12:00:00
Continued 2025-12-25 09:22:13 2025-12-25 12:00:00
Area Extended 2025-12-25 09:22:13 2025-12-25 12:00:00
Continued 2025-12-25 09:22:13 2025-12-25 12:00:00
Expired 2025-12-25 11:47:47 2025-12-25 12:00:00
Time Extended 2025-12-25 11:47:47 2025-12-25 14:00:00
Time Extended 2025-12-25 13:53:50 2025-12-25 18:00:00
Time Extended 2025-12-25 17:28:55 2025-12-26 12:00:00


Action: New
Issued At: 2025-12-25 07:03:39

790 
WWUS76 KPDT 251303
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
503 AM PST Thu Dec 25 2025

ORZ511-251800-
/O.NEW.KPDT.FG.Y.0021.251225T1303Z-251225T1800Z/
Central Oregon-
Including the cities of Bend, Madras, Redmond, and Prineville
503 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility as low as one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MR


Action: Area Extended
Issued At: 2025-12-25 07:19:10

224 
WWUS76 KPDT 251318
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
518 AM PST Thu Dec 25 2025

ORZ510-251800-
/O.EXA.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-
Including the cities of Moro, Dufur, and Maupin
518 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility around one quarter mile in dense fog. 

* WHERE...North Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ511-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Central Oregon-
Including the cities of Bend, Madras, Redmond, and Prineville
518 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility as low as one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MR


Action: Continued
Issued At: 2025-12-25 07:19:10

224 
WWUS76 KPDT 251318
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
518 AM PST Thu Dec 25 2025

ORZ510-251800-
/O.EXA.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-
Including the cities of Moro, Dufur, and Maupin
518 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility around one quarter mile in dense fog. 

* WHERE...North Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ511-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Central Oregon-
Including the cities of Bend, Madras, Redmond, and Prineville
518 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility as low as one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MR


Action: Continued
Issued At: 2025-12-25 09:22:13

358 
WWUS76 KPDT 251521
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
721 AM PST Thu Dec 25 2025

WAZ029-251800-
/O.EXA.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ510-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-
Including the cities of Maupin, Dufur, and Moro
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility around one quarter mile in dense fog. 

* WHERE...North Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ511-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Central Oregon-
Including the cities of Madras, Bend, Redmond, and Prineville
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Area Extended
Issued At: 2025-12-25 09:22:13

358 
WWUS76 KPDT 251521
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
721 AM PST Thu Dec 25 2025

WAZ029-251800-
/O.EXA.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ510-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-
Including the cities of Maupin, Dufur, and Moro
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility around one quarter mile in dense fog. 

* WHERE...North Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ511-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Central Oregon-
Including the cities of Madras, Bend, Redmond, and Prineville
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Continued
Issued At: 2025-12-25 09:22:13

358 
WWUS76 KPDT 251521
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
721 AM PST Thu Dec 25 2025

WAZ029-251800-
/O.EXA.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ510-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-
Including the cities of Maupin, Dufur, and Moro
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility around one quarter mile in dense fog. 

* WHERE...North Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

ORZ511-251800-
/O.CON.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
Central Oregon-
Including the cities of Madras, Bend, Redmond, and Prineville
721 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Central Oregon.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Expired
Issued At: 2025-12-25 11:47:47

149 
WWUS76 KPDT 251747
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
947 AM PST Thu Dec 25 2025

ORZ510-511-251900-
/O.EXP.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-Central Oregon-
Including the cities of Maupin, Dufur, Bend, Prineville, Madras,
Moro, and Redmond
947 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

$$

WAZ029-252000-
/O.EXT.KPDT.FG.Y.0021.000000T0000Z-251225T2000Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
947 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until noon PST today.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Time Extended
Issued At: 2025-12-25 11:47:47

149 
WWUS76 KPDT 251747
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
947 AM PST Thu Dec 25 2025

ORZ510-511-251900-
/O.EXP.KPDT.FG.Y.0021.000000T0000Z-251225T1800Z/
North Central Oregon-Central Oregon-
Including the cities of Maupin, Dufur, Bend, Prineville, Madras,
Moro, and Redmond
947 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

$$

WAZ029-252000-
/O.EXT.KPDT.FG.Y.0021.000000T0000Z-251225T2000Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
947 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until noon PST today.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Time Extended
Issued At: 2025-12-25 13:53:50

294 
WWUS76 KPDT 251953
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1153 AM PST Thu Dec 25 2025

WAZ029-260000-
/O.EXT.KPDT.FG.Y.0021.000000T0000Z-251226T0000Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
1153 AM PST Thu Dec 25 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...

* WHAT...Visibility of one quarter mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

MC


Action: Time Extended
Issued At: 2025-12-25 17:28:55

273 
WWUS76 KPDT 252328
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
328 PM PST Thu Dec 25 2025

WAZ029-261800-
/O.EXT.KPDT.FG.Y.0021.000000T0000Z-251226T1800Z/
Foothills of the Blue Mountains of Washington-
Including the cities of Walla Walla, Waitsburg, and Dayton
328 PM PST Thu Dec 25 2025

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Visibility one half mile or less in dense fog.

* WHERE...Foothills of the Blue Mountains of Washington.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

LN



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