Flash Flood Warning 40, NWS Phoenix, AZ

Issued

Jul 15, 2021, 3:09 PM MST (22:09 UTC)

Expired

Jul 15, 2021, 7:00 PM MST

In force

4 hr

Issued by

NWS Phoenix, AZ

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

County Maricopa County, AZ

The Phoenix radar (KIWA), 139 km from the middle of the area, began a volume at 22:11 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.

664 
WGUS55 KPSR 152209
FFWPSR
AZC013-160200-
/O.NEW.KPSR.FF.W.0040.210715T2209Z-210716T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Phoenix AZ
309 PM MST Thu Jul 15 2021

The National Weather Service in Phoenix has issued a

* Flash Flood Warning for...
  Maricopa County in south central Arizona...

* Until 700 PM MST.

* At 309 PM MST, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 2 inches of rain have fallen. The expected rainfall rate is 
  0.75 to 1.5 inches in 1 hour. Additional rainfall amounts of 0.5 
  to 1.5 inches 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 and automated gauges.

  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 Maricopa County

This includes the following streams and drainages...
  Red Cloud Wash, Jackrabbit Wash, Mill Wash, Tiger Wash, Jimmie 
  Wash, Woodchopper Wash, Powerline Wash, Dead Horse Wash, Winters 
  Wash, Star Wash, Daggs Wash and Grass Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3391 11315 3394 11313 3387 11278 3377 11274
      3369 11288 3375 11307 3386 11320

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.75-1.5 INCHES IN 1 HOUR

$$

SDB

864 
WGUS75 KPSR 160018
FFSPSR

Flash Flood Statement
National Weather Service Phoenix AZ
518 PM MST Thu Jul 15 2021

AZC013-160200-
/O.CON.KPSR.FF.W.0040.000000T0000Z-210716T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maricopa AZ-
518 PM MST Thu Jul 15 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING 
FOR MARICOPA COUNTY...

At 518 PM MST, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 
1.5 and 2.5 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 and automated gauges.

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 Maricopa County

This includes the following streams and drainages...
  Red Cloud Wash, Jackrabbit Wash, Mill Wash, Tiger Wash, Jimmie 
  Wash, Woodchopper Wash, Powerline Wash, Dead Horse Wash, Winters 
  Wash, Star Wash, Daggs Wash and Grass Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3391 11315 3394 11313 3387 11278 3377 11274
      3369 11288 3375 11307 3386 11320

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

$$

SDB

019 
WGUS75 KPSR 160156
FFSPSR

Flash Flood Statement
National Weather Service Phoenix AZ
656 PM MST Thu Jul 15 2021

AZC013-160206-
/O.EXP.KPSR.FF.W.0040.000000T0000Z-210716T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maricopa AZ-
656 PM MST Thu Jul 15 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR 
MARICOPA COUNTY...

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

LAT...LON 3391 11315 3394 11313 3387 11278 3377 11274
      3369 11288 3375 11307 3386 11320

$$

SDB

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.