Alert archive / Oregon / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 5, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at May 18, 2006, 5:40 PM PDT for Deschutes County, Oregon. It was in force for 65 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 18, 2006, 5:40 PM PDT (00:40 UTC)
- Expired
- May 18, 2006, 6:45 PM PDT
- In force
- 65 min
- Issued by
- NWS Pendleton, OR
- Area
- Counties, with a storm outline in the text
County Deschutes County, OR
The radar
The Medford radar (KMAX), 237 km from the middle of the area, began a volume at 00:42 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
Boise Airport, ID (KBOI), launched 00:00Z, 0.7 hours before the alert went out and 406 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
- 60 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 2902 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 73 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 May 18, 4:40 PM PDT, 1 hour earlier.
Area forecast discussion, May 18, 4:40 PM PDT, 1 hour before
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</html>Hazardous weather outlook, May 18, 3:30 PM PDT, 2 hours 10 minutes before
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Local storm report, May 18, 2:46 PM PDT, 2 hours 54 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 |
|---|---|---|---|---|
| May 19, 12:08 PM PDT | Severe Thunderstorm Warning | PDT | Union | 67 min |
| May 19, 12:49 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 40 min |
| May 19, 1:53 PM PDT | Severe Thunderstorm Warning | PDT | Wasco | 47 min |
| May 19, 1:55 PM PDT | Severe Thunderstorm Warning | PDT | Wallowa | 65 min |
| May 19, 2:25 PM PDT | Severe Thunderstorm Warning | PDT | Sherman | 65 min |
| May 19, 2:25 PM PDT | Severe Thunderstorm Warning | PDT | Sherman | 65 min |
| May 19, 2:52 PM PDT | Severe Thunderstorm Warning | PDT | Gilliam | 53 min |
| May 19, 3:40 PM PDT | Severe Thunderstorm Warning | PDT | Morrow | 65 min |
| May 19, 3:51 PM PDT | Tornado Warning | PDT | Morrow | 39 min |
| May 19, 4:11 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 64 min |
| May 19, 4:47 PM PDT | Severe Thunderstorm Warning | PDT | Walla Walla | 58 min |
| May 19, 4:52 PM PDT | Severe Thunderstorm Warning | PDT | Franklin | 53 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2006Every severe thunderstorm warning in 2006
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.