Flash Flood Warning 76, NWS Tucson, AZ

Issued

Sep 10, 2012, 2:24 PM MST (21:24 UTC)

Expired

Sep 10, 2012, 4:15 PM MST

In force

111 min

Issued by

NWS Tucson, AZ

Area

Storm-based polygon

Flood severity

None

County Cochise County, AZ

The Tucson radar (KEMX), 54 km from the middle of the area, began a volume at 21:27 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.

392 
WGUS55 KTWC 102124
FFWTWC
AZC003-102315-
/O.NEW.KTWC.FF.W.0076.120910T2124Z-120910T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
224 PM MST MON SEP 10 2012

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN COCHISE COUNTY IN SOUTHEAST ARIZONA...
  THIS INCLUDES THE CITY OF SIERRA VISTA...

* UNTIL 415 PM MST

* AT 216 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED   
  AN AREA OF THUNDERSTORMS CAPABLE OF PRODUCING FLASH FLOODING.
  THESE SHOWERS AND THUNDERSTORMS WILL MOVE TO THE NORTH AT 
  15 MPH. THE CITY OF SIERRA VISTA AS WELL AS THE BURN AREAS
  INCLUDING MILLER CANYON AND ASH CANYON WILL BE IMPACTED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  NICKSVILLE...HEREFORD AND CHARLESTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1.00 TO 2.00 INCHES ARE POSSIBLE IN
THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A SHORT PERIOD OF MODERATE RAINFALL ON A BURNED WATERSHED CAN LEAD TO
FLASH FLOODS. SEEK HIGHER GROUND IMMEDIATELY...BUT IF IT IS UNSAFE TO
EVACUATE DUE TO FLASH FLOODING...HEAVY RAIN...OR POOR VISIBILITY THE
BEST ACTION MAY BE TO SHELTER IN PLACE IN A STURDY STRUCTURE. THE
FORCE OF RUSHING WATER AND DEBRIS CAN DAMAGE OR DESTROY CULVERTS...
BRIDGES...ROADWAYS...AND BUILDINGS. REMEMBER NEVER TO DRIVE THROUGH
RAPIDLY FLOWING WATER...YOU MAY BE SWEPT AWAY.

&&

LAT...LON 3160 11031 3167 11024 3170 11015 3134 11012
      3134 11027

$$

595 
WGUS75 KTWC 102230
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
330 PM MST MON SEP 10 2012

AZC003-102315-
/O.CON.KTWC.FF.W.0076.000000T0000Z-120910T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
330 PM MST MON SEP 10 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 PM MST FOR
SOUTHWESTERN COCHISE COUNTY...

AT 324 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM CAPABLE OF HEAVY RAIN OVER THE WARNING AREA. 
THIS CONTINUED HEAVY RAINFALL...WITH DOPPLER ESTIMATED RAINFALL 
EXCEEDING AN INCH PER HOUR...IS CAPABLE OF AND IS LIKELY CONTINUING 
TO PRODUCE FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIERRA VISTA 
AS WELL AS BURN AREAS FROM THE MONUMENT FIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3160 11031 3167 11024 3170 11015 3134 11012
      3134 11027

$$

SMR

790 
WGUS75 KTWC 102314
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
414 PM MST MON SEP 10 2012

AZC003-102320-
/O.EXP.KTWC.FF.W.0076.000000T0000Z-120910T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
414 PM MST MON SEP 10 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 415 PM MST FOR SOUTHWESTERN
COCHISE COUNTY...

DOPPLER RADAR SHOWED THAT HEAVY RAIN HAS ENDED ACROSS SIERRA VISTA 
AND THE BURN AREAS. LIGHT TO MODERATE RAIN WILL CONTINUE THROUGH 6 
PM. PONDING OF WATER AND FLOW IN WASHES AND STREAMS LIKELY WILL 
CONTINUE OVER THE NEXT HOUR OR SO. 

LAT...LON 3160 11031 3167 11024 3170 11015 3134 11012
      3134 11027

$$

Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012

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.