Alert archive / Arizona / Flash Flood Watches in 2021

Flash Flood Watch 1, NWS Tucson, AZ

July 12, 20216 counties in Arizona

NWS Tucson, AZ issued this flash flood watch at Jul 12, 2021, 1:56 PM MST for 6 counties in Arizona. It took effect at Jul 13, 2021, 2:00 PM MST. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Jul 12, 2021, 1:56 PM MST (20:56 UTC)
In effect from
Jul 13, 2021, 2:00 PM MST
Expired
Jul 16, 2021, 11:00 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 20:56 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 12:00Z, 8.9 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.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2021-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 481 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2021-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
481 J/kg
Mixed-layer CIN
-384 J/kg
Mixed-layer LCL
1529 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
305 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted.

285 
WGUS65 KTWC 122056
FFATWC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tucson AZ
156 PM MST Mon Jul 12 2021

AZZ501>507-509-511-513>515-131200-
/O.NEW.KTWC.FF.A.0001.210713T2100Z-210715T0600Z/
/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-Upper Gila River
Valley-Galiuro and Pinaleno Mountains-Dragoon and Mule and Huachuca
and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari
Mountains-
Including the cities of Sierra Vista, Mount Lemmon, Mount Graham, 
Ajo, Marana, 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., Sells, and 
Green Valley
156 PM MST Mon Jul 12 2021

...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH 
WEDNESDAY 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, Dragoon and Mule and Huachuca and Santa Rita Mountains, 
  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 and Western Pima County.

* From Tuesday afternoon through Wednesday evening.

* Thunderstorm coverage is expected to increase across much of 
  southeast Arizona Tuesday into Wednesday. These storms will be 
  capable of producing very heavy rainfall, flash flooding within 
  normally dry washes, and debris flows across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

TGD
10 follow-up statements
985 
WGUS65 KTWC 131027
FFATWC

Flood Watch
National Weather Service Tucson AZ
327 AM MST Tue Jul 13 2021

AZZ501>507-509-511-513>515-132300-
/O.CON.KTWC.FF.A.0001.210713T2100Z-210715T0600Z/
/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-Upper Gila River
Valley-Galiuro and Pinaleno Mountains-Dragoon and Mule and Huachuca
and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari
Mountains-
Including the cities of Sierra Vista, Mount Lemmon, Mount Graham, 
Ajo, Marana, 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., Sells, and 
Green Valley
327 AM MST Tue Jul 13 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 2 PM MST THIS AFTERNOON 
THROUGH WEDNESDAY EVENING...

The Flash Flood Watch continues for

* A portion of Southeast Arizona, including the following areas, 
  Baboquivari Mountains, Catalina and Rincon Mountains, Dragoon and 
  Mule and Huachuca and Santa Rita Mountains, 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 and Western Pima County.

* From 2 PM MST this afternoon through Wednesday evening.

* Thunderstorm coverage is expected to increase across much of 
  southeast Arizona today into Wednesday. These storms will be 
  capable of producing very heavy rainfall, flash flooding within 
  normally dry washes, and debris flows across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
018 
WGUS65 KTWC 132118
FFATWC

Flood Watch
National Weather Service Tucson AZ
218 PM MST Tue Jul 13 2021

AZZ501>507-509-511-513>515-141200-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210715T0600Z/
/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-Upper Gila River
Valley-Galiuro and Pinaleno Mountains-Dragoon and Mule and Huachuca
and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari
Mountains-
Including the cities of Sierra Vista, Mount Lemmon, Mount Graham, 
Ajo, Marana, 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., Sells, and 
Green Valley
218 PM MST Tue Jul 13 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...

The Flash Flood Watch continues for

* A portion of Southeast Arizona, including the following areas, 
  Baboquivari Mountains, Catalina and Rincon Mountains, Dragoon and 
  Mule and Huachuca and Santa Rita Mountains, 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 and Western Pima County.

* Through Wednesday evening.

* Thunderstorm coverage is expected to increase across much of 
  southeast Arizona today into Wednesday. These storms will be 
  capable of producing very heavy rainfall, flash flooding within 
  normally dry washes, and debris flows across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
694 
WGUS65 KTWC 141003
FFATWC

Flood Watch
National Weather Service Tucson AZ
303 AM MST Wed Jul 14 2021

AZZ501>507-509-511-513>515-150000-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210715T0600Z/
/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-Upper Gila River
Valley-Galiuro and Pinaleno Mountains-Dragoon and Mule and Huachuca
and Santa Rita Mountains-Catalina and Rincon Mountains-Baboquivari
Mountains-
Including the cities of Sierra Vista, Mount Lemmon, Mount Graham, 
Ajo, Marana, 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., Sells, and 
Green Valley
303 AM MST Wed Jul 14 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, Dragoon and 
  Mule and Huachuca and Santa Rita Mountains, 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 and Western Pima County.

* Through this evening.

* Thunderstorm coverage will be on the increase this morning across 
  much of southeast Arizona and continue into the evening hours. 
  These storms will generally be slow movers and capable of 
  producing very heavy rainfall, flash flooding within normally dry 
  washes, and debris flows across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
025 
WGUS65 KTWC 141840
FFATWC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tucson AZ
1140 AM MST Wed Jul 14 2021

AZZ508-510-512-150600-
/O.EXB.KTWC.FF.A.0001.000000T0000Z-210716T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Cochise County below 5000 feet-White Mountains of Graham and
Greenlee Counties-Chiricahua Mountains-
Including the cities of Willcox, Hannagan Meadow, Chiricahua NM, and 
Douglas
1140 AM MST Wed Jul 14 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY EVENING...

The National Weather Service in Tucson has expanded the

* Flash Flood Watch to include a portion of Southeast Arizona, 
  including the following areas, Chiricahua Mountains, Eastern 
  Cochise County below 5000 feet and White Mountains of Graham and 
  Greenlee Counties.

* Through Thursday evening.

* Slow moving showers and thunderstorms capable of producing very 
  heavy rainfall are expected to affect the area through Thursday 
  evening. Conditions are favorable for flash flooding within 
  normally dry washes and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

AZZ503>507-509-511-513>515-150600-
/O.EXT.KTWC.FF.A.0001.000000T0000Z-210716T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-South
Central Pinal County-Southeast Pinal County-Upper San Pedro River
Valley-Upper Gila River Valley-Galiuro and Pinaleno Mountains-
Dragoon and Mule and Huachuca and Santa Rita Mountains-Catalina and
Rincon Mountains-Baboquivari Mountains-
Including the cities of Marana, Sierra Vista, Nogales, Picacho Peak 
State Park, Vail, Clifton, Mount Lemmon, Summerhaven, Canelo Hills, 
Tucson, Mount Graham, Mammoth, Madera Canyon, Oracle, Bisbee, 
Safford, Kitt Peak, Green Valley, and Benson
1140 AM MST Wed Jul 14 2021

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THURSDAY 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, Dragoon and 
  Mule and Huachuca and Santa Rita Mountains, Galiuro and Pinaleno 
  Mountains, South Central Pinal County, Southeast Pinal County, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley and Upper Santa Cruz River Valley/Altar Valley.

* Through Thursday evening.

* Slow moving showers and thunderstorms capable of producing very 
  heavy rainfall are expected to affect the area through Thursday 
  evening. Conditions are favorable for flash flooding within 
  normally dry washes and low lying areas. Debris flows will be 
  possible across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

AZZ501-502-150600-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210715T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Pima County-Tohono O'odham Nation-
Including the cities of Organ Pipe Cactus N.M., Sells, and Ajo
1140 AM MST Wed Jul 14 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM MST THIS 
EVENING...

The Flash Flood Watch continues for

* A portion of Southeast Arizona, including the following areas, 
  Tohono O'odham Nation and Western Pima County.

* Until 11 PM MST this evening.

* Slow moving showers and thunderstorms capable of producing very 
  heavy rainfall are expected to affect the area through late this 
  evening. Conditions are favorable for flash flooding within 
  normally dry washes and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
886 
WGUS65 KTWC 150556
FFATWC

Flood Watch
National Weather Service Tucson AZ
1056 PM MST Wed Jul 14 2021

AZZ501-502-150700-
/O.EXP.KTWC.FF.A.0001.000000T0000Z-210715T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Pima County-Tohono O'odham Nation-
Including the cities of Organ Pipe Cactus N.M., Sells, and Ajo
1056 PM MST Wed Jul 14 2021

...FLASH FLOOD WATCH WILL EXPIRE AT 11 PM MST THIS EVENING...

The Flash Flood Watch for a portion of Southeast Arizona, including 
the following areas, Tohono O'odham Nation and Western Pima County 
will expire at 11 PM MST this evening.

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

$$

AZZ503>515-151400-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210716T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
1056 PM MST Wed Jul 14 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY 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, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley, Upper Santa Cruz River Valley/Altar Valley and White 
  Mountains of Graham and Greenlee Counties.

* Through Thursday evening.

* Slow moving showers and thunderstorms capable of producing very 
  heavy rainfall are expected to affect the area through Thursday 
  evening. Conditions are favorable for flash flooding within 
  normally dry washes and low lying areas. Debris flows will be 
  possible across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
301 
WGUS65 KTWC 151227
FFATWC

Flood Watch
National Weather Service Tucson AZ
527 AM MST Thu Jul 15 2021

AZZ503>515-160000-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210716T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
527 AM MST Thu Jul 15 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, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley, Upper Santa Cruz River Valley/Altar Valley and White 
  Mountains of Graham and Greenlee Counties.

* Through this evening.

* Slow moving showers and thunderstorms capable of producing very 
  heavy rainfall are expected to affect the area through Thursday 
  evening. Conditions are favorable for flash flooding within 
  normally dry washes and low lying areas. Debris flows will be 
  possible across the Bighorn burn scar.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
943 
WGUS65 KTWC 151934
FFATWC

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tucson AZ
1234 PM MST Thu Jul 15 2021

AZZ503>515-161100-
/O.EXT.KTWC.FF.A.0001.000000T0000Z-210717T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
1234 PM MST Thu Jul 15 2021

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY 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, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley, Upper Santa Cruz River Valley/Altar Valley and White 
  Mountains of Graham and Greenlee Counties.

* Through Friday evening.

* A very moist weather pattern with slow moving showers and 
  thunderstorms will continue into Friday evening. Conditions remain 
  favorable for flash flooding within dry washes and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

GL
643 
WGUS65 KTWC 161113
FFATWC

Flood Watch
National Weather Service Tucson AZ
413 AM MST Fri Jul 16 2021

AZZ503>515-161915-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210717T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
413 AM MST Fri Jul 16 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, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley, Upper Santa Cruz River Valley/Altar Valley and White 
  Mountains of Graham and Greenlee Counties.

* Through this evening.

* A very moist weather pattern with slow moving showers and 
  thunderstorms will continue through this evening. Conditions 
  remain favorable for flash flooding within dry washes and low 
  lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

JD
357 
WGUS65 KTWC 161914
FFATWC

Flood Watch
National Weather Service Tucson AZ
1214 PM MST Fri Jul 16 2021

AZZ503>515-170600-
/O.CON.KTWC.FF.A.0001.000000T0000Z-210717T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
1214 PM MST Fri Jul 16 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM MST 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, 
  Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River 
  Valley, Upper Santa Cruz River Valley/Altar Valley and White 
  Mountains of Graham and Greenlee Counties.

* Until 11 PM MST this evening.

* A very moist weather pattern with slow moving showers and 
  thunderstorms will continue through this evening. Conditions 
  remain favorable for flash flooding within dry washes and low 
  lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

TGD
115 
WGUS65 KTWC 170601
FFATWC

Flood Watch
National Weather Service Tucson AZ
1101 PM MST Fri Jul 16 2021

AZZ503>515-170715-
/O.EXP.KTWC.FF.A.0001.000000T0000Z-210717T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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, Chiricahua NM, Marana, Willcox, Summerhaven, Canelo Hills, 
Benson, Nogales, Picacho Peak State Park, Kitt Peak, Tucson, 
Mammoth, Madera Canyon, Oracle, Bisbee, Vail, Clifton, Hannagan 
Meadow, Safford, and Green Valley
1101 PM MST Fri Jul 16 2021

...FLASH FLOOD WATCH HAS EXPIRED...

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, Tucson Metro Area, Upper Gila River Valley, 
Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar 
Valley and White Mountains of Graham and Greenlee Counties has 
expired.

Flash flooding is no longer expected to pose a threat. Please 
continue to heed remaining road closures.

$$

GZ

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 5:08 PM MSTSevere Thunderstorm WarningTWCGreenlee37 min
Jul 11, 6:51 PM MSTSpecial Weather StatementTWCCochise39 min
Jul 11, 6:52 PM MSTSevere Thunderstorm WarningTWCGraham38 min
Jul 11, 7:25 PM MSTSpecial Weather StatementTWCCochise50 min
Jul 11, 9:22 PM MSTDust Storm WarningTWCCochise, Graham, Greenlee53 min
Jul 11, 9:59 PM MSTDust Storm WarningTWCCochise, Graham, Greenlee61 min
Jul 11, 11:17 PM MSTSpecial Weather StatementTWCCochise28 min
Jul 12, 1:59 PM MSTBlowing Dust AdvisoryTWCPima, Pinal9 hr

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.