Alert archive / Arizona / Flash Flood Warnings in 2014

Flash Flood Warning 22, NWS Tucson, AZ

July 27, 2014Pima County, Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 27, 2014, 3:08 PM MST for Pima County, Santa Cruz County, Arizona. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 27, 2014, 3:08 PM MST (22:08 UTC)
Expired
Jul 27, 2014, 5:00 PM MST
In force
112 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

Counties Pima County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 15 km from the middle of the area, began a volume at 22:07 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.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 10.1 hours before the alert went out and 54 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2014-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 91 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2014-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
91 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
1429 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

298 
WGUS55 KTWC 272208
FFWTWC
AZC019-023-280000-
/O.NEW.KTWC.FF.W.0022.140727T2208Z-140728T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
308 PM MST SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PIMA COUNTY IN SOUTHEAST ARIZONA...
  NORTHEASTERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA...

* UNTIL 500 PM MST

* AT 300 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A VERY STRONG TO SEVERE THUNDERSTORM GENERATING EXTREMELY HEAVY
  RAIN NEAR HIGHWAY 82 NEAR AND EAST OF SONOITA AND NEAR TO NORTH
  OF ELGIN. RAINFALL AMOUNTS IN EXCESS OF 1.5 INCHES WILL CAUSE
  FLASH FLOODING.

* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
CIENEGA CREEK...MUD SPRING CANYON...SONOITA
CREEK...FORTYNINE WASH...GARDNER CANYON AND TURKEY CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES
AND STREAMS...ROADS...CANYONS...AS WELL AS OTHER DRAINAGE AREAS
AND LOW LYING SPOTS.

&&

LAT...LON 3187 11064 3181 11046 3161 11047 3166 11068

$$

MEYER
2 follow-up statements
784 
WGUS75 KTWC 272254
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
354 PM MST SUN JUL 27 2014

AZC019-023-280000-
/O.CON.KTWC.FF.W.0022.000000T0000Z-140728T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ AZ-PIMA AZ-
354 PM MST SUN JUL 27 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM MST FOR
SOUTHEASTERN PIMA AND NORTHEASTERN SANTA CRUZ COUNTIES...

AT 345 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AN AREA OF STRONG THUNDERSTORMS PRODUCING HEAVY RAINFALL 
NEAR HIGHWAY 82 AND ELGIN JUST EAST OF SONOITA. RAINFALL AMOUNTS IN 
EXCESS OF 2 INCHES IS CAUSING FLOODING IN LOCATIONS SUCH AS CIENEGA 
CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...CIENEGA 
CREEK...MUD SPRING CANYON...SONOITA CREEK...FORTYNINE WASH...GARDNER 
CANYON AND TURKEY CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES 
AND STREAMS...ROADS...CANYONS...AS WELL AS OTHER DRAINAGE AREAS AND 
LOW LYING SPOTS.

&&

LAT...LON 3187 11064 3181 11046 3161 11047 3166 11068

$$

MEYER
136 
WGUS75 KTWC 280006
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
506 PM MST SUN JUL 27 2014

AZC019-023-280014-
/O.EXP.KTWC.FF.W.0022.000000T0000Z-140728T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ AZ-PIMA AZ-
506 PM MST SUN JUL 27 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN PIMA AND
NORTHEASTERN SANTA CRUZ COUNTIES...

THE STORM THAT PRODUCED HEAVY RAIN EARLIER THIS AFTERNOON HAS 
DISSIPATED. THEREFORE...THE FLASH FLOOD WARNING WAS ALLOWED TO 
EXPIRE AT 500 PM MST. HOWEVER...THE WASHES IN THE AREA WILL LIKELY 
CONTINUE TO FLOW FOR ANOTHER HOUR OR SO...BUT WATERS WILL CONTINUE 
TO RECEDE.  

LAT...LON 3187 11064 3181 11046 3161 11047 3166 11068

$$

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 5:22 PM MSTAreal Flood AdvisoryTWCGreenlee83 min
Jul 26, 5:36 PM MSTSevere Thunderstorm WarningTWCGraham, Greenlee69 min
Jul 26, 6:24 PM MSTSpecial Weather StatementTWCGraham36 min
Jul 26, 6:41 PM MSTSpecial Weather StatementTWCGraham49 min
Jul 26, 7:07 PM MSTAreal Flood AdvisoryTWCGraham113 min
Jul 26, 8:18 PM MSTSevere Thunderstorm WarningTWCCochise57 min
Jul 26, 9:23 PM MSTSpecial Weather StatementTWC37 min
Jul 26, 9:39 PM MSTSpecial Weather StatementTWCCochise51 min
Jul 26, 9:56 PM MSTSevere Thunderstorm WarningTWCCochise49 min
Jul 26, 10:27 PM MSTSevere Thunderstorm WarningTWCCochise48 min
Jul 26, 10:42 PM MSTSpecial Weather StatementTWCCochise48 min
Jul 26, 11:11 PM MSTSevere Thunderstorm WarningTWCCochise49 min
Jul 26, 11:33 PM MSTSpecial Weather StatementTWCSanta Cruz57 min
Jul 26, 11:46 PM MSTSevere Thunderstorm WarningTWCSanta Cruz37 min
Jul 26, 11:57 PM MSTFlash Flood WarningTWCSanta Cruz3 hr
Jul 27, 12:15 AM MSTAreal Flood AdvisoryTWCCochise, Santa Cruz2 hr
Jul 27, 12:31 AM MSTSevere Thunderstorm WarningTWCSanta Cruz59 min
Jul 27, 1:32 AM MSTAreal Flood AdvisoryTWCPima3 hr
Jul 27, 2:09 AM MSTSpecial Weather StatementTWCPima51 min
Jul 27, 1:11 PM MSTSpecial Weather StatementTWCGreenlee79 min
Jul 27, 2:29 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz46 min
Jul 27, 2:58 PM MSTSpecial Weather StatementTWCGraham77 min
Jul 27, 3:14 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz33 min
Jul 27, 3:35 PM MSTSevere Thunderstorm WarningTWCGraham, Greenlee14 min
Jul 27, 4:06 PM MSTAreal Flood AdvisoryTWCGraham84 min
Jul 27, 4:20 PM MSTAreal Flood AdvisoryTWCGraham85 min
Jul 27, 4:58 PM MSTSpecial Weather StatementTWC77 min

Nearby

Flash Flood Warnings in Arizona, 2014Every flash flood warning in 2014

Sources

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.