Alert archive / California / Special Weather Statements in 2017
Special Weather Statement, NWS Eureka, CA
NWS Eureka, CA issued this special weather statement at Jul 25, 2017, 2:50 PM PDT. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 2017, 2:50 PM PDT (21:50 UTC)
- Expired
- Jul 25, 2017, 3:15 PM PDT
- In force
- 25 min
- Issued by
- NWS Eureka, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 104 km from the middle of the area, began a volume at 21:52 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.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 9.8 hours before the alert went out and 144 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
- 1985 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this special weather statement went out at Jul 25, 4:50 AM PDT, 10 hours earlier.
Area forecast discussion, Jul 25, 4:50 AM PDT, 10 hours before
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<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Jul 25, 3:56 AM PDT, 10 hours 54 minutes before
Hazardous Weather Outlook National Weather Service Eureka CA 356 AM PDT Tue Jul 25 2017 CAZ101-103-106-261100- Coastal Del Norte-Northern Humboldt Coast-Southern Humboldt Interior- 356 AM PDT Tue Jul 25 2017 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. Isolated thunderstorms may develop this afternoon and evening...mainly easy of a line from eureka to Garberville. The main storm hazards will be dangerous cloud to ground lightning, gusty winds, and small hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ102-105-107-108-111-261100- Del Norte Interior-Northern Humboldt Interior-Northern Trinity- Southern Trinity-Northeastern Mendocino Interior- 356 AM PDT Tue Jul 25 2017 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. Isolated thunderstorms may develop this afternoon and tonight, mainly east of an Orick, to Dinsmore, to Ruth line. The main storm hazards will be dangerous cloud to ground lightning, gusty winds, and small hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thunderstorms may also develop Wednesday afternoon and evening, east of a Weitchpec to Forest Glen line. The main storm hazards will be dangerous cloud to ground lightning, gusty winds, and small hail. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka. CAZ104-109-110-112-113-261100- Southwestern Humboldt-Mendocino Coast- Northwestern Mendocino Interior-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 356 AM PDT Tue Jul 25 2017 This hazardous weather outlook is for northwest California. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant weather to the National Weather Service in Eureka. For further details please refer to NOAA Weather Radio or weather.gov/eureka.
In the hours before
Special weather statement, Jul 25, 2:50 PM PDT, 0 minutes before
Special Weather Statement
National Weather Service Eureka CA
250 PM PDT TUE JUL 25 2017
CAZ105-107-252215-
Northern Humboldt Interior CA-Northern Trinity CA-
250 PM PDT TUE JUL 25 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN TRINITY AND
NORTHEASTERN HUMBOLDT COUNTIES UNTIL 315 PM PDT...
At 249 PM PDT, Doppler radar was tracking a strong thunderstorm 11
miles south of Nordheimer Campground, or 12 miles southeast of
Orleans, moving west at 10 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Willow Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4123 12345 4122 12343 4121 12344 4120 12342
4118 12341 4117 12339 4115 12338 4116 12335
4114 12332 4107 12331 4098 12364 4124 12369
TIME...MOT...LOC 2149Z 082DEG 10KT 4114 12343
MKKThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 2:22 AM PDT | Small Craft Advisory | EKA | 8 days |
Nearby
Special Weather Statements in California, 2017Every special weather statement in 2017
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; radar from the NEXRAD Level II archive.