Alert archive / Arizona / Flash Flood Watches in 2021
Flash Flood Watch 3, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood watch at Jul 21, 2021, 1:50 AM MST for 6 counties in Arizona. It took effect at Jul 22, 2021, 6:00 PM MST. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Jul 21, 2021, 1:50 AM MST (08:50 UTC)
- In effect from
- Jul 22, 2021, 6:00 PM MST
- Expired
- Jul 25, 2021, 8:25 PM MST
- In force
- 3 days
- Issued by
- NWS Tucson, AZ
- Flood severity
- None
Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 61 km from the middle of the area, began a volume at 08:49 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
Tuscon, AZ (KTUS), launched 00:00Z, 8.8 hours before the alert went out and 49 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
- 712 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 2745 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
604 WGUS65 KTWC 210850 FFATWC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tucson AZ 150 AM MST Wed Jul 21 2021 AZZ501>515-211700- /O.NEW.KTWC.FF.A.0003.210723T0100Z-210725T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 150 AM MST Wed Jul 21 2021 ...FLASH FLOOD WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY EVENING... The National Weather Service in Tucson has issued a * Flash Flood Watch for a portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * From Thursday evening through Saturday evening. * An approaching weather system from the east will bring widespread showers and thunderstorms to the area Thursday evening through late Saturday. Locally heavy rainfall combined with a saturated ground from recent rains will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flows. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JD
9 follow-up statements
723 WGUS65 KTWC 212059 FFATWC Flood Watch National Weather Service Tucson AZ 159 PM MST Wed Jul 21 2021 AZZ501>515-221200- /O.CON.KTWC.FF.A.0003.210723T0100Z-210725T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 159 PM MST Wed Jul 21 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * From Thursday evening through Saturday evening. * An approaching weather system from the east will bring widespread showers and thunderstorms to the area Thursday evening through late Saturday. Locally heavy rainfall combined with a saturated ground from recent rains will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flows. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ TGD
152 WGUS65 KTWC 221041 FFATWC Flood Watch National Weather Service Tucson AZ 341 AM MST Thu Jul 22 2021 AZZ501>515-221845- /O.CON.KTWC.FF.A.0003.210723T0100Z-210725T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 341 AM MST Thu Jul 22 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * From this evening through Saturday evening. * An approaching weather system will bring periods of heavy showers and thunderstorms this afternoon through late Saturday. Locally heavy rainfall combined with a saturated ground from recent rains will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could lingering on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JD
169 WGUS65 KTWC 221751 FFATWC Flood Watch National Weather Service Tucson AZ 1051 AM MST Thu Jul 22 2021 AZZ501>515-231200- /O.CON.KTWC.FF.A.0003.210723T0100Z-210725T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 1051 AM MST Thu Jul 22 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 PM MST THIS EVENING THROUGH SATURDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * From 6 PM MST this evening through Saturday evening. * An approaching weather system will bring periods of heavy showers and thunderstorms this afternoon through late Saturday. Locally heavy rainfall combined with a saturated ground from recent rains will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could lingering on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
704 WGUS65 KTWC 231015 FFATWC Flood Watch National Weather Service Tucson AZ 315 AM MST Fri Jul 23 2021 AZZ501>515-232215- /O.CON.KTWC.FF.A.0003.000000T0000Z-210725T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 315 AM MST Fri Jul 23 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * Through Saturday evening. * An approaching weather system and saturated atmosphere will bring periods of widespread heavy showers and thunderstorms through at least late Saturday. * Locally heavy rainfall combined with a saturated ground will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could linger on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WJM
958 WGUS65 KTWC 231914 FFATWC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tucson AZ 1214 PM MST Fri Jul 23 2021 AZZ501>515-240315- /O.EXT.KTWC.FF.A.0003.000000T0000Z-210726T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 1214 PM MST Fri Jul 23 2021 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch is now in effect for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * Through Sunday evening. * An approaching weather system and saturated atmosphere will bring periods of widespread heavy showers and thunderstorms through at least late Sunday. * Locally heavy rainfall combined with a saturated ground will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could linger on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MJS
070 WGUS65 KTWC 240248 FFATWC Flood Watch National Weather Service Tucson AZ 748 PM MST Fri Jul 23 2021 AZZ501>515-241200- /O.CON.KTWC.FF.A.0003.000000T0000Z-210726T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 748 PM MST Fri Jul 23 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * Through Sunday evening. * An approaching weather system and saturated atmosphere will bring periods of widespread heavy showers and thunderstorms through at least late Sunday. * Locally heavy rainfall combined with a saturated ground will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could linger on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ GL
912 WGUS65 KTWC 240928 FFATWC Flood Watch National Weather Service Tucson AZ 228 AM MST Sat Jul 24 2021 AZZ501>515-251200- /O.CON.KTWC.FF.A.0003.000000T0000Z-210726T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 228 AM MST Sat Jul 24 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * Through Sunday evening. * An approaching weather system and saturated atmosphere will bring periods of widespread heavy showers and thunderstorms through at least late Sunday. * Locally heavy rainfall combined with a saturated ground will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could linger on Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ KRG
503 WGUS65 KTWC 250917 FFATWC Flood Watch National Weather Service Tucson AZ 217 AM MST Sun Jul 25 2021 AZZ501>515-260700- /O.CON.KTWC.FF.A.0003.000000T0000Z-210726T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 217 AM MST Sun Jul 25 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * Through this evening. * A passing weather system and saturated atmosphere will bring periods of widespread heavy showers and thunderstorms through late tonight. * Locally heavy rainfall combined with a saturated ground will likely result in flash flooding of washes, small streams, and poor drainage areas. Burn scars from past and more recent wildfires will be especially prone to flash flooding and debris flow. Flash flooding may also lead to significant mainstem river rises that could linger into early this week. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ KRG
132 WGUS65 KTWC 260325 FFATWC Flood Watch National Weather Service Tucson AZ 825 PM MST Sun Jul 25 2021 AZZ501>515-260430- /O.CAN.KTWC.FF.A.0003.000000T0000Z-210726T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Western Pima County-Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South Central Pinal County- Southeast Pinal County-Upper San Pedro River Valley-Eastern Cochise County below 5000 feet-Upper Gila River Valley-White Mountains of Graham and Greenlee Counties-Galiuro and Pinaleno Mountains- Chiricahua Mountains-Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari Mountains- Including the cities of Sierra Vista, Mount Lemmon, Douglas, Mount Graham, Ajo, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, Mammoth, Madera Canyon, Oracle, Safford, Bisbee, Vail, Clifton, Organ Pipe Cactus N.M., Hannagan Meadow, Sells, and Green Valley 825 PM MST Sun Jul 25 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties has been cancelled. Showers and thunderstorms have come to an end across southern Arizona, therefore no new Flash Flooding is expected. However, rivers and washes are still running high with two long duration Flood Warnings in effect. Also, please continue to heed remaining road closures. $$ CC
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 6:00 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 20, 6:44 PM MST | Special Weather Statement | TWC | 46 min | |
| Jul 20, 7:17 PM MST | Special Weather Statement | TWC | Santa Cruz | 43 min |
| Jul 20, 8:02 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 58 min |
| Jul 20, 8:14 PM MST | Special Weather Statement | TWC | 61 min | |
| Jul 20, 8:17 PM MST | Severe Thunderstorm Warning | TWC | Pima | 58 min |
| Jul 20, 8:40 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Jul 20, 8:46 PM MST | Severe Thunderstorm Warning | TWC | Pima | 30 min |
| Jul 20, 9:13 PM MST | Special Weather Statement | TWC | 62 min | |
| Jul 20, 9:24 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 51 min |
| Jul 20, 9:42 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 2 hr |
| Jul 20, 9:53 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 52 min |
| Jul 21, 8:18 AM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 8 hr |
| Jul 21, 1:00 PM MST | Special Weather Statement | TWC | Pima | 45 min |
| Jul 21, 1:12 PM MST | Severe Thunderstorm Warning | TWC | Pima | 48 min |
| Jul 21, 1:38 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 21, 1:57 PM MST | Special Weather Statement | TWC | Pima | 48 min |
| Jul 21, 2:09 PM MST | Special Weather Statement | TWC | Pima | 51 min |
| Jul 21, 2:16 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Jul 21, 2:21 PM MST | Dust Storm Advisory | TWC | Pima, Pinal | 84 min |
| Jul 21, 2:51 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 21, 3:01 PM MST | Dust Storm Warning | TWC | Pinal | 32 min |
Nearby
Flash Flood Watches in Arizona, 2021Every flash flood watch 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.