Alert archive / California / Special Weather Statements in 2013

Special Weather Statement, NWS Eureka, CA

July 3, 2013Trinity County, California

NWS Eureka, CA issued this special weather statement at Jul 3, 2013, 4:40 PM PDT for Trinity County, California. It was in force for 50 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 3, 2013, 4:40 PM PDT (23:40 UTC)
Expired: Jul 3, 2013, 5:30 PM PDT
In force: 50 min
Issued by: NWS Eureka, CA

County Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 105 km from the middle of the area, began a volume at 23:40 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, 11.7 hours before the alert went out and 174 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: 86 J/kg
Mixed-layer CIN: -543 J/kg
Mixed-layer LCL: 1565 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 3, 3:27 PM PDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 3, 3:27 PM PDT, 1 hour 13 minutes before

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Hazardous weather outlook, Jul 3, 3:48 AM PDT, 12 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
348 AM PDT WED JUL 3 2013

CAZ003-004-076-041100-
NORTH COAST INTERIOR-UPPER TRINITY RIVER-MENDOCINO INTERIOR-
348 AM PDT WED JUL 3 2013

...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

A RED FLAG WARNING IS CURRENTLY IN EFFECT. A SLIGHT CHANCE OF
THUNDERSTORMS OVER THE HIGHER TERRAIN OF TRINITY COUNTY THIS
AFTERNOON.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

CAZ001-002-041100-
REDWOOD COAST-MENDOCINO COAST-
348 AM PDT WED JUL 3 2013

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...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 3, 2:03 PM PDT, 2 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE
203 PM PDT WED JUL 3 2013

CAZ002-003-076-032145-
HUMBOLDT CA-MENDOCINO CA-
203 PM PDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  MENDOCINO COUNTY IN NORTHWEST CALIFORNIA
  HUMBOLDT COUNTY IN NORTHWEST CALIFORNIA

UNTIL 245 PM PDT

AT 200 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR LEGGETT...MOVING NORTH AT 10 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THIS
STORM....ALONG WITH HEAVY RAIN AND DANGEROUS LIGHTNING. LOCATIONS
IMPACTED INCLUDE HIGHWAY 1 AND 101 IN NORTHERN MENDOCINO
COUNTY...LEGGETT AND RICHARDSON GROVE.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 4022 12392 4017 12354 3999 12355 3967 12362
      3979 12385 3983 12387
TIME...MOT...LOC 2101Z 179DEG 7KT 3987 12373

RPA

Special weather statement, Jul 3, 2:09 PM PDT, 2 hours 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE
209 PM PDT WED JUL 3 2013

CAZ004-032200-
TRINITY CA-
209 PM PDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN TRINITY COUNTY IN NORTHWEST CALIFORNIA

UNTIL 300 PM PDT

AT 205 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 10 MILES WEST OF SADDLE CAMP...MOVING NORTH AT 5
MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM....ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 4004 12313 4027 12309 4026 12299 4024 12297
      4015 12298 4011 12295 4007 12296 4006 12295
      4001 12295
TIME...MOT...LOC 2109Z 186DEG 6KT 4012 12298

RPA

Special weather statement, Jul 3, 3:48 PM PDT, 52 minutes before

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Special weather statement, Jul 3, 4:40 PM PDT, 0 minutes before

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The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 2:03 PM PDT	Special Weather Statement	EKA		42 min
Jul 3, 2:09 PM PDT	Special Weather Statement	EKA		51 min
Jul 3, 2:21 PM PDT	Severe Thunderstorm Warning	EKA	Trinity	24 min
Jul 3, 2:31 PM PDT	Hazardous Seas Warning	EKA		4 days
Jul 3, 2:45 PM PDT	Severe Thunderstorm Warning	EKA	Trinity	45 min
Jul 3, 2:49 PM PDT	Areal Flood Advisory	EKA	Trinity	3 hr
Jul 3, 3:28 PM PDT	Severe Thunderstorm Warning	EKA	Trinity	32 min
Jul 3, 3:48 PM PDT	Special Weather Statement	EKA		57 min
Jul 3, 4:03 PM PDT	Severe Thunderstorm Warning	EKA	Mendocino	42 min
Jul 3, 4:50 PM PDT	Special Weather Statement	EKA	Trinity	40 min

Nearby

Special Weather Statements in California, 2013 Every special weather statement in 2013

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.