Alert archive / Washington / Heat Advisories in 2021
Heat Advisory 3, NWS Spokane, WA
NWS Spokane, WA issued this heat advisory at Jul 9, 2021, 2:42 AM PDT for 9 counties in Washington; Lewis County, Nez Perce County, Idaho. It took effect at Jul 10, 2021, 11:00 AM PDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jul 9, 2021, 2:42 AM PDT (09:42 UTC)
- In effect from
- Jul 10, 2021, 11:00 AM PDT
- Expired
- Jul 10, 2021, 8:00 PM PDT
- In force
- 9 hr
- Issued by
- NWS Spokane, WA
Counties Lewis County, ID, Nez Perce County, ID, Adams County, WA, Asotin County, WA, Douglas County, WA, Garfield County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Spokane County, WA, Whitman County, WA
The radar
The Spokane radar (KOTX), 76 km from the middle of the area, began a volume at 09:45 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, 9.7 hours before the alert went out and 144 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
- 3320 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
403 WWUS76 KOTX 090942 NPWOTX URGENT - WEATHER MESSAGE National Weather Service Spokane WA 242 AM PDT Fri Jul 9 2021 IDZ026-027-WAZ031>036-091745- /O.NEW.KOTX.HT.Y.0003.210710T1800Z-210711T0300Z/ Lewiston Area-Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-Lower Garfield and Asotin Counties-Washington Palouse-Moses Lake Area-Upper Columbia Basin-Spokane Area- Including the cities of Colfax, Quincy, Pomeroy, Nezperce, Cheney, Ephrata, Odessa, Winchester, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Tekoa, Craigmont, La Crosse, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Pullman, and Ritzville 242 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY... * WHAT...Hot temperatures with highs in the mid 90s to near 105. * WHERE...Colfax, Quincy, Pomeroy, Nezperce, Cheney, Ephrata, Odessa, Winchester, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Tekoa, Craigmont, La Crosse, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Pullman, and Ritzville. * WHEN...From 11 AM to 8 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ KD
4 follow-up statements
016 WWUS76 KOTX 091312 NPWOTX URGENT - WEATHER MESSAGE National Weather Service Spokane WA 612 AM PDT Fri Jul 9 2021 IDZ026-027-WAZ031>036-101415- /O.CON.KOTX.HT.Y.0003.210710T1800Z-210711T0300Z/ Lewiston Area-Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-Lower Garfield and Asotin Counties-Washington Palouse-Moses Lake Area-Upper Columbia Basin-Spokane Area- Including the cities of Colfax, Quincy, Pomeroy, Nezperce, Cheney, Ephrata, Odessa, Winchester, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Tekoa, Craigmont, La Crosse, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Pullman, and Ritzville 612 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY... * WHAT...Hot temperatures with highs in the mid 90s to near 105. * WHERE...Colfax, Quincy, Pomeroy, Nezperce, Cheney, Ephrata, Odessa, Winchester, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Tekoa, Craigmont, La Crosse, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Pullman, and Ritzville. * WHEN...From 11 AM to 8 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ KD
912 WWUS76 KOTX 091652 NPWOTX URGENT - WEATHER MESSAGE National Weather Service Spokane WA 952 AM PDT Fri Jul 9 2021 WAZ043-101800- /O.EXA.KOTX.HT.Y.0003.210710T1800Z-210711T0300Z/ Okanogan Valley- 952 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY... * WHAT...Hot temperatures with highs in the mid-90s to near 105 * WHERE...Okanogan Valley ZONE. * WHEN...From 11 AM to 8 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ IDZ026-027-WAZ031>036-101800- /O.CON.KOTX.HT.Y.0003.210710T1800Z-210711T0300Z/ Lewiston Area-Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-Lower Garfield and Asotin Counties-Washington Palouse- Moses Lake Area-Upper Columbia Basin-Spokane Area- 952 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY... * WHAT...Hot temperatures with highs in the mid 90s to near 105. * WHERE...In Washington, Moses Lake Area, Upper Columbia Basin, Spokane Area, Lower Garfield and Asotin Counties, Northeast Blue Mountains and Washington Palouse ZONEs. In Idaho, Lewis and Southern Nez Perce Counties and Lewiston Area ZONEs. * WHEN...From 11 AM to 8 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ OTX
209 WWUS76 KOTX 101219 NPWOTX URGENT - WEATHER MESSAGE National Weather Service Spokane WA 519 AM PDT Sat Jul 10 2021 IDZ026-027-WAZ031>036-043-110300- /O.CON.KOTX.HT.Y.0003.210710T1800Z-210711T0300Z/ Lewiston Area-Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-Lower Garfield and Asotin Counties-Washington Palouse-Moses Lake Area-Upper Columbia Basin-Spokane Area- Okanogan Valley- Including the cities of Colfax, Quincy, Pomeroy, Nezperce, Cheney, Nespelem, Ephrata, Odessa, Winchester, Brewster, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Bridgeport, Tekoa, Craigmont, Omak, La Crosse, Okanogan, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Oroville, Pullman, and Ritzville 519 AM PDT Sat Jul 10 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT THIS EVENING... * WHAT...Hot temperatures with highs in the mid 90s to near 105. * WHERE...Colfax, Quincy, Pomeroy, Nezperce, Cheney, Nespelem, Ephrata, Odessa, Winchester, Brewster, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Bridgeport, Tekoa, Craigmont, Omak, La Crosse, Okanogan, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Oroville, Pullman, and Ritzville. * WHEN...From 11 AM this morning to 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ KD
467 WWUS76 KOTX 110238 NPWOTX URGENT - WEATHER MESSAGE National Weather Service Spokane WA 738 PM PDT Sat Jul 10 2021 IDZ026-027-WAZ031>036-043-110345- /O.EXP.KOTX.HT.Y.0003.000000T0000Z-210711T0300Z/ Lewiston Area-Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-Lower Garfield and Asotin Counties-Washington Palouse-Moses Lake Area-Upper Columbia Basin-Spokane Area- Okanogan Valley- Including the cities of Colfax, Quincy, Pomeroy, Nezperce, Cheney, Nespelem, Ephrata, Odessa, Winchester, Brewster, Othello, Uniontown, Peck, Moses Lake, Rockford, Rosalia, Coulee City, Spokane, Wilbur, Bridgeport, Tekoa, Craigmont, Omak, La Crosse, Okanogan, Lapwai, Culdesac, Lewiston, Davenport, Grand Coulee, Clarkston, Anatone, Gifford, Kamiah, Peola, Oakesdale, Oroville, Pullman, and Ritzville 738 PM PDT Sat Jul 10 2021 ...HEAT ADVISORY WILL EXPIRE AT 8 PM PDT THIS EVENING... Temperatures will remain very warm into early next week with highs mainly in the 90s. $$ JW
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 6:07 PM PDT | Flash Flood Warning | OTX | Okanogan | 113 min |
| Jul 9, 8:03 AM PDT | Red Flag Warning | OTX | 37 hr |
Nearby
Heat Advisories in Washington, 2021Heat Advisories in Idaho, 2021Every heat advisory 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.