Flash Flood Warning 14, NWS Tucson, AZ

Issued

Jul 10, 2021, 5:42 PM MST (00:42 UTC)

Expired

Jul 10, 2021, 7:45 PM MST

In force

2 hr

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Flood severity

None

County Santa Cruz County, AZ

The Tucson radar (KEMX), 45 km from the middle of the area, began a volume at 00:45 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.

623 
WGUS55 KTWC 110042
FFWTWC
AZC023-110245-
/O.NEW.KTWC.FF.W.0014.210711T0042Z-210711T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
542 PM MST Sat Jul 10 2021

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Central Santa Cruz County in southeastern Arizona...

* Until 745 PM MST.

* At 542 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, and
           streets as well as other poor drainage and low-lying
           areas.

* Some locations that will experience flash flooding include...
  Patagonia, Patagonia Lake State Park and Nogales International 
  Airport.

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 3157 11090 3141 11089 3145 11064 3160 11070

FLASH FLOOD...RADAR INDICATED

$$

JD

542 
WGUS75 KTWC 110126
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
626 PM MST Sat Jul 10 2021

AZC023-110245-
/O.CON.KTWC.FF.W.0014.000000T0000Z-210711T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Cruz AZ-
626 PM MST Sat Jul 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM MST THIS 
EVENING FOR CENTRAL SANTA CRUZ COUNTY...

At 626 PM MST, The heaviest rainfall had ended in the warning area, 
but elevated flows in normally dry washes and small streams can 
still be expected. Please continue to heed remaining road closures 
if there are any.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams as well as
         other poor drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Patagonia, Patagonia Lake State Park and Nogales International 
  Airport.

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 3157 11090 3141 11089 3145 11064 3160 11070

FLASH FLOOD...RADAR INDICATED

$$

JD

949 
WGUS75 KTWC 110237
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
737 PM MST Sat Jul 10 2021

AZC023-110247-
/O.EXP.KTWC.FF.W.0014.000000T0000Z-210711T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Cruz AZ-
737 PM MST Sat Jul 10 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 745 PM MST THIS EVENING FOR 
CENTRAL SANTA CRUZ COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3157 11090 3141 11089 3145 11064 3160 11070

$$

JD

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.