| Products in the Last Seven Days |
| Type |
Phenomena |
Count |
| Advisory | Small Craft | 259 |
| Advisory | Winter Weather | 174 |
| Advisory | Dense Fog | 148 |
| Warning | Gale | 134 |
| Advisory | Wind | 124 |
| Advisory | Areal Flood | 94 |
| Watch | Gale | 87 |
| Warning | High Wind | 79 |
| Warning | Flash Flood | 50 |
| Warning | Winter Storm | 43 |
| Warning | Severe Thunderstorm | 40 |
| Watch | High Wind | 39 |
| Watch | Winter Storm | 34 |
| Warning | Fire Weather | 21 |
| Watch | Areal Flood | 16 |
| Warning | Storm | 14 |
| Warning | Hazardous Seas | 11 |
| Watch | Storm | 8 |
| Watch | Flood | 7 |
| Advisory | Lake Wind | 7 |
| Watch | Fire Weather | 6 |
| Warning | Ice Accretion | 5 |
| Warning | Ice Storm | 4 |
| Warning | Tornado | 3 |
| Advisory | Ice Accretion | 3 |
| Warning | Blizzard | 2 |
| Watch | Ice Accretion | 2 |
| Advisory | Freezing Fog | 1 |
| Advisory | Low Water | 1 |
| Advisory | Blowing Dust | 1 |
| Advisory | Flood | 1 |
| Advisory | Frost | 1 |
| Most Active Forecast Offices |
| Forecast Office |
Products |
| Eureka, CA | 70 |
| Los Angeles / Oxnard, CA | 61 |
| San Francisco Bay Area / Monterey, CA | 59 |
| Duluth, MN | 58 |
| Medford, OR | 57 |
| Boston, MA | 48 |
| Buffalo, NY | 41 |
| Portland, OR | 41 |
| Seattle, WA | 40 |
| Mount Holly / Philadelphia, NJ | 38 |
| Baltimore / Washington, VA | 37 |
| San Joaquin Valley / Hanford, CA | 36 |
| Riverton, WY | 29 |
| New York / Upton, NY | 28 |
| Gray / Portland, ME | 28 |
| Gaylord, MI | 25 |
| Reno, NV | 24 |
| Wakefield, VA | 24 |
| Sacramento, CA | 22 |
| Newport / Morehead City, NC | 22 |
| Product Count by Day |
| Date |
Warn |
Watch |
Advis. |
| 2025-12-25 | 50 |
4 | 151 |
| 2025-12-24 | 75 |
19 | 171 |
| 2025-12-23 | 35 |
21 | 89 |
| 2025-12-22 | 31 |
22 | 81 |
| 2025-12-21 | 9 |
19 | 63 |
| 2025-12-20 | 24 |
8 | 99 |
| 2025-12-19 | 69 |
21 | 65 |
| 2025-12-18 | 70 |
19 | 78 |
| 2025-12-17 | 57 |
47 | 57 |
| Particularly Dangerous Situations |
| Product |
Forecast Office |
| No PDS products in the last 7 days. |
|
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Dense Fog Advisory 0038
Issued by the San Francisco Bay Area / Monterey Forecast Office
| Action |
Issued |
Starts |
Expiration |
| New |
2025-12-20 10:28:02 |
2025-12-20 10:27:00 |
2025-12-20 14:00:00 |
| Cancelled |
2025-12-20 12:35:50 |
|
2025-12-20 14:00:00 |
Action: New
Issued At: 2025-12-20 10:28:02
825
WWUS76 KMTR 201627
NPWMTR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
827 AM PST Sat Dec 20 2025
CAZ502-506-202000-
/O.NEW.KMTR.FG.Y.0038.251220T1627Z-251220T2000Z/
Marin Coastal Range-North Bay Interior Valleys-
827 AM PST Sat Dec 20 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY...
* WHAT...Visibility 1/4 mile or less in dense fog.
* WHERE...The Marin Hills, and North Bay Interior Valleys.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
Limited visibility will result in hazardous driving conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
If commuting, allow extra drive time to reach your destination
safely.
&&
$$
JM
Action: Cancelled
Issued At: 2025-12-20 12:35:50
091
WWUS76 KMTR 201835
NPWMTR
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1035 AM PST Sat Dec 20 2025
CAZ502-506-201945-
/O.CAN.KMTR.FG.Y.0038.000000T0000Z-251220T2000Z/
Marin Coastal Range-North Bay Interior Valleys-
1035 AM PST Sat Dec 20 2025
...DENSE FOG ADVISORY IS CANCELLED...
Visibility has improved across the North Bay and Marin Hills, however
pockets of dense fog may linger in some spots through the remainder
of the morning hours.
$$
JM
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