Flash Flood Warning 20, NWS Tucson, AZ

Issued

Jul 12, 2021, 10:33 PM MST (05:33 UTC)

Expired

Jul 13, 2021, 1:45 AM 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), 77 km from the middle of the area, began a volume at 05:35 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

695 
WGUS55 KTWC 130533
FFWTWC
AZC019-130845-
/O.NEW.KTWC.FF.W.0020.210713T0533Z-210713T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
1033 PM MST Mon Jul 12 2021

The National Weather Service in Tucson has issued a

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

* Until 145 AM MST.

* At 1033 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. 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...
  Tucson, Drexel Heights, Three Points, Avra Valley, Pascua Pueblo 
  Yaqui Reservation, Tucson Estates, Saguaro National Park West, 
  Valencia West, Tucson International Airport, Summit, Picture 
  Rocks, San Pedro, Queens Well, Santa Rosa Ranch, Ryan AirField, 
  Silver Bell and San Xavier Mission.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3247 11146 3236 11163 3215 11177 3185 11125
      3194 11111 3211 11092

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

$$

RH

213 
WGUS75 KTWC 130716
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
1216 AM MST Tue Jul 13 2021

AZC019-130845-
/O.CON.KTWC.FF.W.0020.000000T0000Z-210713T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
1216 AM MST Tue Jul 13 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM MST EARLY THIS 
MORNING FOR NORTHEASTERN PIMA COUNTY...

At 1216 AM MST, Doppler radar indicated that the thunderstorms that 
produced the heavy rainfall had moved southwest of the warning area. 
Between 1 and 2 inches of rain had occurred in the warning area. 
Additional rainfall amounts of 0.1 to 0.2 inches are possible. Flash 
flooding is ongoing with flooded washes.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

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

Some locations that will experience flash flooding include...
  Tucson, Drexel Heights, Three Points, Avra Valley, Pascua Pueblo 
  Yaqui Reservation, Tucson Estates, Saguaro National Park West, 
  Valencia West, Tucson International Airport, Summit, Picture 
  Rocks, San Pedro, Queens Well, Santa Rosa Ranch, Ryan AirField, 
  Silver Bell and San Xavier Mission.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3247 11146 3236 11163 3215 11177 3185 11125
      3194 11111 3211 11092

FLASH FLOOD...RADAR INDICATED

$$

GZ

407 
WGUS75 KTWC 130842
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
142 AM MST Tue Jul 13 2021

AZC019-130852-
/O.EXP.KTWC.FF.W.0020.000000T0000Z-210713T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
142 AM MST Tue Jul 13 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 145 AM MST EARLY THIS MORNING 
FOR NORTHEASTERN PIMA COUNTY...

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

LAT...LON 3247 11146 3236 11163 3215 11177 3185 11125
      3194 11111 3211 11092

$$

GZ

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.