Alert archive / Oregon / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 9, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at Aug 8, 2019, 4:02 PM PDT for Deschutes County, Oregon. It was in force for 43 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 8, 2019, 4:02 PM PDT (23:02 UTC)
- Expired
- Aug 8, 2019, 4:45 PM PDT
- In force
- 43 min
- Issued by
- NWS Pendleton, OR
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Deschutes County, OR
The radar
The Medford radar (KMAX), 237 km from the middle of the area, began a volume at 23:02 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, 11.0 hours before the alert went out and 214 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
- 822 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 8, 2:08 PM PDT, 1 hour 54 minutes earlier.
Area forecast discussion, Aug 8, 2:08 PM PDT, 1 hour 54 minutes before
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Special weather statement, Aug 8, 2:59 PM PDT, 1 hour 3 minutes before
Special Weather Statement
National Weather Service Pendleton OR
259 PM PDT Thu Aug 8 2019
WAZ520-082230-
East Slopes of the Washington Cascades WA-
259 PM PDT Thu Aug 8 2019
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL YAKIMA COUNTY UNTIL
330 PM PDT...
At 258 PM PDT, Doppler radar was tracking a strong thunderstorm 10
miles southwest of Rimrock, or 18 miles east of Packwood, moving
northeast at 10 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Rimrock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4655 12141 4657 12142 4658 12140 4662 12139
4665 12140 4671 12138 4672 12136 4673 12137
4681 12134 4668 12096 4645 12121 4652 12145
TIME...MOT...LOC 2158Z 203DEG 15KT 4655 12129
DSSpecial weather statement, Aug 8, 3:36 PM PDT, 26 minutes before
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<div class="status" id="status">Temporary Notice</div>
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
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Please try again in a few minutes.
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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 7, 5:12 PM PDT | Special Weather Statement | PDT | Wheeler | 63 min |
| Aug 7, 6:00 PM PDT | Special Weather Statement | PDT | Sherman | 30 min |
| Aug 7, 6:38 PM PDT | Special Weather Statement | PDT | Sherman | 37 min |
| Aug 8, 3:36 PM PDT | Special Weather Statement | PDT | Crook | 39 min |
| Aug 8, 3:56 PM PDT | Special Weather Statement | PDT | Deschutes | 49 min |
| Aug 8, 2:59 PM PDT | Special Weather Statement | PDT | Yakima | 31 min |
| Aug 8, 3:53 PM PDT | Areal Flood Advisory | PDT | Yakima | 3 hr |
| Aug 8, 3:58 PM PDT | Special Weather Statement | PDT | Yakima | 32 min |
| Aug 8, 4:15 PM PDT | Severe Thunderstorm Warning | PDT | Yakima | 45 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2019Every severe thunderstorm warning in 2019
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.