Alert archive / Oregon / Excessive Heat Warnings in 2021
Excessive Heat Warning 1, NWS Pendleton, OR
NWS Pendleton, OR issued this excessive heat warning at Jun 24, 2021, 9:00 AM PDT for 12 counties in Oregon; 7 counties in Washington. It took effect at Jun 25, 2021, 2:00 PM PDT. It was in force for 7 days. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 24, 2021, 9:00 AM PDT (16:00 UTC)
- In effect from
- Jun 25, 2021, 2:00 PM PDT
- Expired
- Jul 2, 2021, 1:43 PM PDT
- In force
- 7 days
- Issued by
- NWS Pendleton, OR
Counties Crook County, OR, Deschutes County, OR, Gilliam County, OR, Grant County, OR, Jefferson County, OR, Morrow County, OR, Sherman County, OR, Umatilla County, OR, Union County, OR, Wallowa County, OR, Wasco County, OR, Wheeler County, OR, Benton County, WA, Columbia County, WA, Franklin County, WA, Kittitas County, WA, Klickitat County, WA, Walla Walla County, WA, Yakima County, WA
The radar
The Pendleton radar (KPDT), 70 km from the middle of the area, began a volume at 16:01 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 12:00Z, 4.0 hours before the alert went out and 351 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
- 2667 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this excessive heat 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 excessive heat warning went out at Jun 24, 2:45 AM PDT, 6 hours 15 minutes earlier.
Area forecast discussion, Jun 24, 2:45 AM PDT, 6 hours 15 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 |
|---|---|---|---|---|
| Jun 23, 5:08 PM PDT | Special Weather Statement | PDT | Wallowa | 52 min |
| Jun 23, 5:54 PM PDT | Special Weather Statement | PDT | Jefferson | 51 min |
| Jun 23, 5:56 PM PDT | Severe Thunderstorm Warning | PDT | Crook, Deschutes, Jefferson | 49 min |
Nearby
Excessive Heat Warnings in Oregon, 2021Excessive Heat Warnings in Washington, 2021Every excessive heat warning in 2021
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.