Flash Flood Warning 111, NWS Tucson, AZ

Issued

Aug 10, 2021, 10:29 PM MST (05:29 UTC)

Expired

Aug 11, 2021, 12:30 AM MST

In force

2 hr

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

County Pima County, AZ

The Tucson radar (KEMX), 35 km from the middle of the area, began a volume at 05:31 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.

037 
WGUS55 KTWC 110529
FFWTWC
AZC019-110730-
/O.NEW.KTWC.FF.W.0111.210811T0529Z-210811T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
1029 PM MST Tue Aug 10 2021

The National Weather Service in Tucson has issued a

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

* Until 1230 AM MST.

* At 1029 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 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, Davis-Monthan Air Force Base, Tanque Verde, Vail, Saguaro 
  National Park East, Sabino Canyon Recreation Area, Tucson 
  International Airport, Catalina Foothills, Summit and Rita Ranch.

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.

Remain alert for flooding even in locations not receiving rain. 
Washes, streams, and rivers can become raging killer currents in a 
matter of minutes, even from distant rainfall.

&&

LAT...LON 3233 11087 3232 11064 3216 11055 3201 11060
      3202 11097 3208 11103 3217 11088

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

$$

RH

968 
WGUS75 KTWC 110610
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
1110 PM MST Tue Aug 10 2021

AZC019-110730-
/O.CON.KTWC.FF.W.0111.000000T0000Z-210811T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima AZ-
1110 PM MST Tue Aug 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM MST WEDNESDAY 
FOR EAST CENTRAL PIMA COUNTY...

At 1110 PM MST, Doppler radar indicated between 1 and 2 inches of 
rainfall has occurred across the eastern portions of the Tucson 
Metro Area. The heaviest rainfall, between 1.50 and 2.00 has fallen 
along and near the Tanque Verde Creek on the far northeast side of 
Tucson. An automated rain gage at Agua Caliente Wash at Tanque Verde 
Road has reported 2.05 inches of rain, and another gage at Tanque 
Verde Creek at Tanque Verde Road has reported 1.81 inches. Flash 
flooding is ongoing or expected to begin shortly, especially along 
the Tanque Verde Creek and Agua Caliente Wash.

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, Davis-Monthan Air Force Base, Tanque Verde, Vail, Saguaro 
  National Park East, Sabino Canyon Recreation Area, Tucson 
  International Airport, Catalina Foothills, Summit and Rita Ranch.

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.

Remain alert for flooding even in locations not receiving rain. 
Washes, streams, and rivers can become raging killer currents in a 
matter of minutes, even from distant rainfall.

&&

LAT...LON 3233 11087 3232 11064 3216 11055 3201 11060
      3202 11097 3208 11103 3217 11088

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

$$

CWR

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.