Flash Flood Warning 141, NWS Tucson, AZ

Issued

Aug 16, 2021, 11:23 PM MST (06:23 UTC)

Expired

Aug 17, 2021, 2:30 AM MST

In force

3 hr

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Flood severity

None

County Pinal County, AZ

The Phoenix radar (KIWA), 61 km from the middle of the area, began a volume at 06:26 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.

592 
WGUS55 KTWC 170623
FFWTWC
AZC021-170930-
/O.NEW.KTWC.FF.W.0141.210817T0623Z-210817T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
1123 PM MST Mon Aug 16 2021

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Southeastern Pinal County in southeastern Arizona...

* Until 230 AM MST.

* At 1123 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...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...
  Eloy, Saddlebrooke, Picacho, Picacho Peak State Park, Red Rock, 
  Cactus Forest, Oracle Junction and Biosphere 2.

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.

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 3284 11153 3298 11134 3307 11121 3282 11083
      3252 11082 3252 11181 3264 11181 3274 11168
      3274 11167 3276 11161 3277 11160 3281 11156

FLASH FLOOD...RADAR INDICATED

$$

224 
WGUS75 KTWC 170806
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
106 AM MST Tue Aug 17 2021

AZC021-170930-
/O.CON.KTWC.FF.W.0141.000000T0000Z-210817T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pinal AZ-
106 AM MST Tue Aug 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM MST EARLY THIS 
MORNING FOR SOUTHEASTERN PINAL COUNTY...

At 106 AM MST, Doppler radar indicated that the earlier heavy rain 
has diminished to light to locally moderate. Between 1 and 3 inches 
of rain may have fallen across the warned area.

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...
  Eloy, Saddlebrooke, Picacho, Picacho Peak State Park, Red Rock, 
  Cactus Forest, Oracle Junction and Biosphere 2.

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.

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 3284 11153 3298 11134 3307 11121 3282 11083
      3252 11082 3252 11181 3264 11181 3274 11168
      3274 11167 3276 11161 3277 11160 3281 11156

FLASH FLOOD...RADAR INDICATED

$$

940 
WGUS75 KTWC 170930
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
230 AM MST Tue Aug 17 2021

AZC021-170940-
/O.EXP.KTWC.FF.W.0141.000000T0000Z-210817T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pinal AZ-
230 AM MST Tue Aug 17 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN PINAL 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 3284 11153 3298 11134 3307 11121 3282 11083
      3252 11082 3252 11181 3264 11181 3274 11168
      3274 11167 3276 11161 3277 11160 3281 11156

$$

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.