Alert archive / California / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 4, NWS Sacramento, CA
NWS Sacramento, CA issued this severe thunderstorm warning at May 5, 2013, 1:57 PM PDT for 4 counties in California. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 5, 2013, 1:57 PM PDT (20:57 UTC)
- Expired
- May 5, 2013, 2:30 PM PDT
- In force
- 33 min
- Issued by
- NWS Sacramento, CA
- Area
- Storm-based polygon
Counties Nevada County, CA, Plumas County, CA, Sierra County, CA, Yuba County, CA
The radar
The Beale AFB radar (KBBX), 66 km from the middle of the area, began a volume at 20:57 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, 9.0 hours before the alert went out and 354 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
- 2319 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sacramento, CA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 5, 9:17 AM PDT, 4 hours 40 minutes earlier.
Area forecast discussion, May 5, 9:17 AM PDT, 4 hours 40 minutes before
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</html>Hazardous weather outlook, May 5, 7:00 AM PDT, 6 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 700 AM PDT SUN MAY 5 2013 CAZ013>019-063-064-066>069-061400- SHASTA LAKE AREA/NORTHERN SHASTA COUNTY- BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY- CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY- CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY- MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES- CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE- EAST FOOTHILLS/NORTH SACRAMENTO VALLEY- WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA- 700 AM PDT SUN MAY 5 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY A LOW PRESSURE SYSTEM OVER THE NORTHERN CALIFORNIA COAST WILL BRING A THREAT OF SHOWERS OR THUNDERSTORMS TODAY AND TONIGHT OVER THE MOUNTAINS OF INTERIOR NORTHERN CALIFORNIA. .DAYS TWO THROUGH SEVEN... MONDAY THROUGH SATURDAY SHOWERS AND THUNDERSTORMS WILL REMAIN A POSSIBILITY OVER NORTHERN CALIFORNIA THROUGH MUCH OF THE COMING WEEK. DRIER AND WARMER WEATHER IS EXPECTED FRIDAY AND SATURDAY. THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT (LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO
In the hours before
Special weather statement, May 5, 12:59 PM PDT, 58 minutes before
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</html>Special weather statement, May 5, 1:05 PM PDT, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 105 PM PDT SUN MAY 5 2013 CAZ069-052045- WEST SLOPE NORTHERN SIERRA NEVADA CA- 105 PM PDT SUN MAY 5 2013 THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... EXTREME NORTH CENTRAL PLACER COUNTY IN CENTRAL CALIFORNIA NORTH CENTRAL NEVADA COUNTY IN CENTRAL CALIFORNIA SOUTH CENTRAL SIERRA COUNTY IN NORTHERN CALIFORNIA UNTIL 145 PM PDT AT 102 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR BIG BEND..MOVING NORTH AT 15 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. LOCATIONS IMPACTED INCLUDE... RATTLESNAKE MOUNTAIN... LAKE SPAULDING... MEADOW LAKE... BOWMAN LAKE... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING OR AUTOMOBILE. LAT...LON 3945 12076 3954 12050 3930 12045 3924 12057 TIME...MOT...LOC 2005Z 160DEG 12KT 3931 12051 BARUFFALDI
Special weather statement, May 5, 1:47 PM PDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 147 PM PDT SUN MAY 5 2013 CAZ069-052130- WEST SLOPE NORTHERN SIERRA NEVADA CA- 147 PM PDT SUN MAY 5 2013 THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... EXTREME NORTH CENTRAL NEVADA COUNTY IN CENTRAL CALIFORNIA WESTERN SIERRA COUNTY IN NORTHERN CALIFORNIA UNTIL 230 PM PDT AT 143 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR BOWMAN LAKE..MOVING NORTHWEST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS IMPACTED INCLUDE... DOWNIEVILLE... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING...IF BOATING SEEK THE SAFE HARBOR. LAT...LON 3966 12093 3968 12064 3945 12056 3946 12077 TIME...MOT...LOC 2046Z 152DEG 21KT 3952 12069 BARUFFALDI
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 1:05 PM PDT | Special Weather Statement | STO | Nevada | 40 min |
| May 5, 1:47 PM PDT | Special Weather Statement | STO | Sierra | 43 min |
| May 5, 2:25 PM PDT | Special Weather Statement | STO | Nevada | 50 min |
| May 5, 2:42 PM PDT | Special Weather Statement | STO | Plumas | 48 min |
| May 5, 3:29 PM PDT | Severe Thunderstorm Warning | STO | Butte, Plumas | 46 min |
Nearby
Severe Thunderstorm Warnings in California, 2013Every severe thunderstorm warning 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.