Alert archive / Washington / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 15, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at Aug 11, 2013, 5:04 PM PDT for Columbia County, Washington. It was in force for 56 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
- Aug 11, 2013, 5:04 PM PDT (00:04 UTC)
- Expired
- Aug 11, 2013, 6:00 PM PDT
- In force
- 56 min
- Issued by
- NWS Pendleton, OR
- Area
- Storm-based polygon
County Columbia County, WA
The radar
The Pendleton radar (KPDT), 99 km from the middle of the area, began a volume at 00:04 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
Spokane, WA (KOTX), launched 00:00Z, 0.1 hours before the alert went out and 193 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
- 1096 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 2286 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 Pendleton, OR wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 2:30 PM PDT, 2 hours 34 minutes earlier.
Area forecast discussion, Aug 11, 2:30 PM PDT, 2 hours 34 minutes before
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</html>Hazardous weather outlook, Aug 11, 5:17 AM PDT, 11 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 517 AM PDT SUN AUG 11 2013 ORZ041-042-044-049-050-502-503-505>509-WAZ024-026>030-520-521- 121230- EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON- LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY- NORTHERN BLUE MOUNTAINS OF OREGON- SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO- JOHN DAY HIGHLANDS- FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON- FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON- EAST SLOPES OF THE OREGON CASCADES- EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY- YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- NORTHWEST BLUE MOUNTAINS OF WASHINGTON- EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS- 517 AM PDT SUN AUG 11 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL OREGON...NORTH CENTRAL OREGON...NORTHEAST OREGON...CENTRAL WASHINGTON...SOUTH WASHINGTON...SOUTH CENTRAL WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS TODAY ACROSS ALL AREAS BECOMING SCATTERED BY THIS AFTERNOON. THUNDERSTORMS MAY PRODUCE HEAVY RAIN...FREQUENT LIGHTNING...GUSTY WINDS...AND HAIL. SPC HAS A 5 PERCENT RISK FOR STRONG WINDS AND LARGE HAIL FOR ALL AREAS EXCEPT THE EAST SLOPES OF THE OREGON CASCADES TODAY. RED FLAG WARNINGS REMAIN IN EFFECT FOR ABUNDANT LIGHTNING COMBINED WITH CRITICALLY DRIED FUELS FOR ALL FIRE WEATHER ZONES. PLEASE REFER TO PDXRFWPDT FOR FURTHER DETAILS. A FLASH FLOOD WATCH FOR PORTIONS OF SOUTH AND CENTRAL WASHINGTON REMAINS IN EFFECT THROUGH 11PM THIS EVENING. PLEASE REFER TO PRODUCT PDXFFAPDT FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SOUTHWEST FLOW WILL CONTINUE TO PROVIDE A CHANCE FOR THUNDERSTORMS...MAINLY ALONG THE MOUNTAINS OF NORTHEAST OREGON. THE SPC THREAT FOR MONDAY REMAINS IN THE 5 PERCENT CATEGORY FOR STRONG WINDS AND LARGE HAIL.
In the hours before
Local storm report, Aug 11, 11:22 AM PDT, 5 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
1122 AM PDT SUN AUG 11 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0519 PM HAIL 6 E CONDON 45.24N 120.06W
08/10/2013 E0.50 INCH GILLIAM OR PUBLIC
MARBLE SIZED HAIL FELL DURING PEAK OF STORM IN AREA.
0521 PM HAIL SSE EASTON 47.23N 121.18W
08/10/2013 E0.50 INCH KITTITAS WA TRAINED SPOTTER
THUNDERSTORM WITH GUSTY WINDS OF UP TO 30 KTS WITH 1/2
INCH ESTIMATED SIZED HAIL REPORTED.
0548 PM HAIL WNW UNION 45.21N 117.88W
08/10/2013 E1.00 INCH UNION OR TRAINED SPOTTER
0548 PM HAIL ESE UNION 45.21N 117.86W
08/10/2013 E0.50 INCH UNION OR TRAINED SPOTTER
STORM PASSED WITH LITTLE RAIN BUT WITH HALF-INCH
ESTIMATED HAIL SIZE.
0550 PM HAIL ESE UNION 45.21N 117.86W
08/10/2013 E1.00 INCH UNION OR TRAINED SPOTTER
0555 PM HAIL UNION 45.21N 117.87W
08/10/2013 E1.50 INCH UNION OR PUBLIC
ESTIMATED ONE AND ONE-HALF INCH SIZED HAIL WITH PROPERTY
DAMAGE TO PATIO ROOF.
0556 PM HAIL UNION 45.21N 117.87W
08/10/2013 E1.75 INCH UNION OR PUBLIC
0602 PM HAIL UNION 45.21N 117.87W
08/10/2013 E1.00 INCH UNION OR TRAINED SPOTTER
0604 PM HAIL COVE 45.30N 117.81W
08/10/2013 E1.00 INCH UNION OR TRAINED SPOTTER
0613 PM HAIL UNION 45.21N 117.87W
08/10/2013 E1.00 INCH UNION OR PUBLIC
ESTIMATED QUARTER SIZE HAIL CAUSING PROPERTY DAMAGE.
0645 PM TSTM WND GST MINAM 45.62N 117.72W
08/10/2013 E45.00 MPH WALLOWA OR PUBLIC
STRONG GUSTY WINDS BLOWING INTO THUNDERSTORM, ESTIMATED
45 MPH.
0703 PM LIGHTNING SW MITCHELL 44.56N 120.15W
08/10/2013 WHEELER OR TRAINED SPOTTER
FREQUENT LIGHTNING WITH HEAVY RAINFALL ASSOCIATED WITH
STORM.
0722 PM LIGHTNING 2 NW WAITSBURG 46.29N 118.18W
08/10/2013 WALLA WALLA WA AMATEUR RADIO
AN AMATEUR RADIO OPERATOR WORKING AT THE TABLE ROCK FIRE
LOOKOUT LOCATED 20 MILES EAST OF WALLA WALLA AT AN
ELEVATION OF 6300 FEET REPORTED SEEING A LIGHTNING STRIKE
STARTING A FIRE IN A WHEAT FIELD JUST NORTHWEST OF
WAITSBURG.
0854 PM HAIL 10 SSE MAUPIN 45.04N 120.99W
08/10/2013 E1.00 INCH WASCO OR TRAINED SPOTTER
DIME SIZE HAIL AND BIGGER UP TO QUARTER SIZE HAIL.
&&
SUMMARY OF SATURDAY'S STORM REPORTS
POLANSpecial weather statement, Aug 11, 12:37 PM PDT, 4 hours 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENDLETON OR
1237 PM PDT SUN AUG 11 2013
WAZ520-112030-
EAST SLOPES OF THE WASHINGTON CASCADES WA-
1237 PM PDT SUN AUG 11 2013
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN KITTITAS AND NORTHWESTERN
YAKIMA COUNTIES UNTIL 130 PM PDT...
AT 1230 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR GOOSE PRAIRIE...OR 36 MILES SOUTHEAST OF
ENUMCLAW...MOVING NORTH AT 20 MPH.
HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THIS STORM...ALONG
WITH HEAVY RAIN.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 4735 12087 4650 12102 4658 12141 4668 12142
4671 12137 4677 12146 4691 12151 4705 12139
4712 12141 4715 12138 4715 12131 4721 12132
4723 12137 4727 12134 4729 12144 4735 12147
4741 12143
TIME...MOT...LOC 1937Z 185DEG 16KT 4697 12133Local storm report, Aug 11, 1:50 PM PDT, 3 hours 14 minutes before
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</html>Special weather statement, Aug 11, 1:58 PM PDT, 3 hours 6 minutes before
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</html>Local storm report, Aug 11, 4:06 PM PDT, 58 minutes before
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</html>The office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:15 AM PDT | Red Flag Warning | PDT | 24 hr | |
| Aug 12, 2:43 PM PDT | Special Weather Statement | PDT | Union | 47 min |
Nearby
Severe Thunderstorm Warnings in Washington, 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.