Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jun 4, 2021, 3:48 AM PDT for Harney County, Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Jun 5, 2021, 1:00 PM PDT. It was in force for 8 hr. 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 4, 2021, 3:48 AM PDT (10:48 UTC)
- In effect from
- Jun 5, 2021, 1:00 PM PDT
- Expired
- Jun 5, 2021, 9:00 PM PDT
- In force
- 8 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA, Harney County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 156 km from the middle of the area, began a volume at 10:45 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
Medford/Jackson, OR (KMFR), launched 00:00Z, 10.8 hours before the alert went out and 160 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
- 3084 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -69 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
845 WWUS86 KMFR 041048 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 348 AM PDT Fri Jun 4 2021 CAZ284-285-ORZ624-625-042300- /O.UPG.KMFR.FW.A.0003.210605T2000Z-210606T0400Z/ /O.NEW.KMFR.FW.W.0003.210605T2000Z-210606T0400Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 348 AM PDT Fri Jun 4 2021 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT SATURDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284...285... 624 AND 625... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 1 PM to 9 PM PDT Saturday. * Impacts: Strong, gusty west to southwest winds with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA, Fire Zones 285 and northeastern 284, including the Modoc National Forest, Tulelake and Clear Lake Wildlife Refuges, and the communities of Tulelake, Canby, and Alturas. In South Central OR, Fire Zones 624 and 625, including much of the Fremont-Winema National Forest and the communities of Klamath Falls, Sprague River, Silver Lake, Fort Rock, Paisley, Lakeview, and Adel. * Winds: West to southwest 15 to 25 mph with gusts up to 40 mph. * Humidity: As low as 7 to 15 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ Visit us at www.weather.gov/Medford
4 follow-up statements
058 WWUS86 KMFR 042104 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 204 PM PDT Fri Jun 4 2021 ...Gusty Wind with Low Relative Humidity Saturday Afternoon and Evening... .West to northwest wind will be strong and gusty Saturday afternoon and evening behind a dry cold front. With high fire danger and low relative humidity, this will lead to the potential for rapid spread of any new or existing fires. CAZ284-285-ORZ624-625-051400- /O.CON.KMFR.FW.W.0003.210605T2000Z-210606T0400Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 204 PM PDT Fri Jun 4 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT SATURDAY FOR STRONG, GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284...285...624 AND 625... * Impacts: Strong, gusty wind with low relative humidity and High fire danger will lead to the potential for rapid spread of any new or existing fires. * Affected Areas in Northern CA...Northeastern portions of FWZ284 and all except the southwestern portion of FWZ285. This includes the Modoc National Forest, Tule Lake and Clear Lake Wildlife Refuges, Lava Beds National Monument, and the communities of Tulelake, Goose Lake, New Pine Creek, Davis Creek, Canby, Alturas, and the Warner Mountains. * Affected Areas in Southern OR...In South Central OR Fire Zones...FWZ624 mainly east of Highway 97... and FWZ 625. This includes much of the Fremont-Winema National Forest and the communities of Klamath Falls, Sprague River, Silver Lake, Fort Rock, Paisley, Lakeview, and Adel. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph. * Minimum Relative Humidity: 7 to 15 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ BTL Visit us at www.weather.gov/Medford
259 WWUS86 KMFR 052053 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 153 PM PDT Sat Jun 5 2021 ...Gusty Wind with Low Relative Humidity this Afternoon and Evening and Again Sunday Afternoon and Evening... .West to northwest wind will be strong and gusty this afternoon and evening behind a dry cold front. With high fire danger and low relative humidity, this will lead to the potential for rapid spread of any new or existing fires. Similar conditions are expected Sunday afternoon, and are possible again Monday. CAZ285-ORZ624-625-060400- /O.NEW.KMFR.FW.W.0004.210606T2000Z-210607T0400Z/ /O.NEW.KMFR.FW.A.0004.210607T2100Z-210608T0300Z/ /O.CON.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 153 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285... 624 AND 625... ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285...624 AND 625... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285 AND 625... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 1 PM to 9 PM PDT Sunday. A Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Monday afternoon through Monday evening. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Northern CA...Most of FWZ285. This includes the Modoc National Forest, Clear Lake Wildlife Refuge, The Warner Mountains, and the communities of New Pine Creek, Newell, Davis Creek, Canby, and Alturas. * Affected Areas in Southern OR...In South Central OR Fire Zone FWZ624 mainly east of Highway 97 and FWZ625. This includes much of the Fremont-Winema National Forest and the communities of Klamath Falls, Sprague River, Silver Lake, Fort Rock, Paisley, Lakeview, and Adel. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph this afternoon and evening, with similar conditions expected Sunday afternoon. * Minimum Relative Humidity: 7 to 15 percent this afternoon and evening, with similar conditions expected Sunday afternoon. * View the hazard area in detail at: https://go.usa.gov/x6jc7 Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ CAZ284-060400- /O.CON.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta- 153 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 284... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Northern CA...Northeastern portions of FWZ284 and all except the southwestern portion of FWZ285. This includes the Modoc National Forest, Tule Lake Wildlife Refuge, Lava Beds National Monument, and the community of Tulelake. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph. * Minimum Relative Humidity: 7 to 15 percent. * View the hazard area in detail at: https://go.usa.gov/x6jc7 Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. $$ BPN Visit us at www.weather.gov/Medford
647 WWUS86 KMFR 052112 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 212 PM PDT Sat Jun 5 2021 ...Gusty Wind with Low Relative Humidity this Afternoon and Evening and Again Sunday Afternoon and Evening... .West to northwest wind will be strong and gusty this afternoon and evening behind a dry cold front. With high fire danger and low relative humidity, this will lead to the potential for rapid spread of any new or existing fires. Similar conditions are expected Sunday afternoon, and are possible again Monday. ORZ624-060915- /O.CAN.KMFR.FW.A.0004.210607T2100Z-210608T0300Z/ /O.CON.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ /O.CON.KMFR.FW.W.0004.210606T2000Z-210607T0400Z/ Klamath Basin and the Fremont-Winema National Forest- 212 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Southern OR...In South Central OR Fire Zone FWZ624 mainly east of Highway 97, including much of the Fremont- Winema National Forest and the communities of Klamath Falls, Sprague River, Bly, and Lakeview. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph this afternoon and evening, with similar conditions expected Sunday afternoon. * Minimum Relative Humidity: 7 to 15 percent this afternoon and evening, with similar conditions expected Sunday afternoon. * View the hazard area in detail at: https://go.usa.gov/x6jc7 Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ CAZ285-ORZ625-060915- /O.CON.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ /O.CON.KMFR.FW.W.0004.210606T2000Z-210607T0400Z/ /O.CON.KMFR.FW.A.0004.210607T2100Z-210608T0300Z/ Modoc County Except for the Surprise Valley- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 212 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285 AND 625... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285 AND 625... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285 AND 625... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Northern CA...Most of FWZ285. This includes the Modoc National Forest, Clear Lake Wildlife Refuge, The Warner Mountains, and the communities of New Pine Creek, Newell, Davis Creek, Canby, and Alturas. * Affected Areas in Southern OR...In South Central OR Fire Zone 625. This includes much of the Fremont-Winema National Forest and the communities of Silver Lake, Fort Rock, Paisley, and Adel. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph this afternoon and evening, with similar conditions expected Sunday afternoon. * Minimum Relative Humidity: 7 to 15 percent this afternoon and evening, with similar conditions expected Sunday afternoon. * View the hazard area in detail at: https://go.usa.gov/x6jc7 $$ CAZ284-060400- /O.CON.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta- 212 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 284... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Northern CA...Northeastern portions of FWZ284. This includes portions of Modoc National Forest, the Tule Lake Wildlife Refuge, Lava Beds National Monument, and the community of Tulelake. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph. * Minimum Relative Humidity: 7 to 15 percent. * View the hazard area in detail at: https://go.usa.gov/x6jc7 $$ BPN Visit us at www.weather.gov/Medford
083 WWUS86 KMFR 060408 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 908 PM PDT Sat Jun 5 2021 ...Gusty Wind with Low Relative Humidity Again Sunday Afternoon and Evening... .West to northwest wind will be strong and gusty Sunday afternoon and evening behind a dry cold front. With high fire danger and low relative humidity, this will lead to the potential for rapid spread of any new or existing fires. Similar conditions are possible again Monday. CAZ285-ORZ625-062300- /O.EXP.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ /O.CON.KMFR.FW.W.0004.210606T2000Z-210607T0400Z/ /O.CON.KMFR.FW.A.0004.210607T2100Z-210608T0300Z/ Modoc County Except for the Surprise Valley- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 908 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR PORTIONS OF FIRE WEATHER ZONES 285 AND 625... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR PORTIONS OF FIRE WEATHER ZONES 285 AND 625... ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285 AND 625... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Red Flag Warning and Fire Weather Watch Affected Areas in Northern CA...Southeastern FWZ285. This includes the Modoc National Forest, Clear Lake Wildlife Refuge, The Warner Mountains, and the communities of New Pine Creek, Newell, Davis Creek, Adin and Alturas. * Red Flag Warning Affected Areas in Southern OR...In South Central OR Fire Zone 625. This includes portions of the Fremont- Winema National Forest and the community of Adel. * Fire Weather Watch Affected Areas in Southern OR...Extreme Southeastern Fire Weather Zone 625. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph Sunday afternoon and evening with similar conditions possible Monday afternoon. * Minimum Relative Humidity: 10 to 15 percent Sunday with similar conditions possible Monday afternoon. * View the hazard area in detail at: https://go.usa.gov/x6jc7 Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. If you have not packed your evacuation kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Plan now to avoid using equipment that could cause sparks during the period when critical weather conditions are possible. Visit weather.gov/medford/wildfire for links to fire restrictions in your area. A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life- threatening. Check weather.gov/medford for forecast updates and a possible upgrade of the this watch to a Red Flag Warning. && $$ ORZ624-062300- /O.EXP.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ /O.CON.KMFR.FW.W.0004.210606T2000Z-210607T0400Z/ Klamath Basin and the Fremont-Winema National Forest- 908 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR SOUTHEASTERN FIRE WEATHER ZONE 624... ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected Areas in Southern OR...In South Central OR Extreme Southeastern Fire Zone FWZ624 including the communities of Valley Falls and Lakeview. * Winds: West to northwest 15 to 25 mph with gusts 30 to 40 mph Sunday afternoon and evening. * Minimum Relative Humidity: 12 to 15 percent Sunday afternoon and evening. * View the hazard area in detail at: https://go.usa.gov/x6jc7 Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ CAZ284-060515- /O.EXP.KMFR.FW.W.0003.000000T0000Z-210606T0400Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta- 908 PM PDT Sat Jun 5 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 284... Conditions are improving this evening. $$ Visit us at www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 9:08 PM PDT | Small Craft Advisory | MFR | 4 days | |
| Jun 4, 2:46 AM PDT | Hazardous Seas Watch | MFR | 12 hr | |
| Jun 4, 2:22 PM PDT | Hazardous Seas Warning | MFR | 33 hr |
Nearby
Red Flag Warnings in Oregon, 2021Red Flag Warnings in California, 2021Every red flag 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.