Flash Flood Warning 93, NWS Tucson, AZ

Issued

Aug 8, 2021, 3:08 PM MST (22:08 UTC)

Expired

Aug 8, 2021, 6:15 PM MST

In force

3 hr

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

County Pima County, AZ

The Tucson radar (KEMX), 82 km from the middle of the area, began a volume at 22:09 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.

379 
WGUS55 KTWC 082208
FFWTWC
AZC019-090115-
/O.NEW.KTWC.FF.W.0093.210808T2208Z-210809T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
308 PM MST Sun Aug 8 2021

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Central Pima County in southeastern Arizona...

* Until 615 PM MST.

* At 308 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 2.5 inches of 
  rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  mainly rural areas of Central Pima County

This includes the following streams and drainages...
  Contreras Wash, Fresno Wash, Solano Wash, Cerro Prieto Wash, Altar 
  Wash, Fresnal Wash, Baboquivari Wash, Little Thomas Wash, Ali 
  Molina Wash, Saucito Wash, Puertocito Wash, Alambre Wash, Sabino 
  Wash, Mulberry Wash, Thomas Canyon Wash and Brown Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3173 11142 3175 11164 3190 11162 3191 11138

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JRM

961 
WGUS75 KTWC 082353
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
453 PM MST Sun Aug 8 2021

AZC019-090115-
/O.CON.KTWC.FF.W.0093.000000T0000Z-210809T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
453 PM MST Sun Aug 8 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM MST THIS 
EVENING FOR CENTRAL PIMA COUNTY...

At 453 PM MST, Doppler radar indicated thunderstorms produced heavy 
rain across the warned area. Between 2 and 2.5 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly. 
Washes may flood low water crossings along Highway 286 north of 
Sasabe.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  mainly rural areas of Central Pima County

This includes the following streams and drainages...
  Contreras Wash, Fresno Wash, Solano Wash, Cerro Prieto Wash, Altar 
  Wash, Fresnal Wash, Baboquivari Wash, Little Thomas Wash, Ali 
  Molina Wash, Saucito Wash, Puertocito Wash, Alambre Wash, Sabino 
  Wash, Mulberry Wash, Thomas Canyon Wash and Brown Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3173 11142 3175 11164 3190 11162 3191 11138

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JRM

572 
WGUS75 KTWC 090109
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
609 PM MST Sun Aug 8 2021

AZC019-090119-
/O.EXP.KTWC.FF.W.0093.000000T0000Z-210809T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
609 PM MST Sun Aug 8 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 615 PM MST THIS EVENING FOR 
CENTRAL PIMA COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures and watch 
for water in low water crossings along the highway.

LAT...LON 3173 11142 3175 11164 3190 11162 3191 11138

$$

JRM

Flash Flood Warnings in Arizona, 2021Every flash flood warning in 2021

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.