Alert archive / Arizona / Flash Flood Warnings in 2007

Flash Flood Warning 40, NWS Tucson, AZ

August 6, 2007Cochise County, Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 6, 2007, 6:13 AM MST for Cochise County, Pima County, Arizona. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 6, 2007, 6:13 AM MST (13:13 UTC)
Expired: Aug 6, 2007, 8:15 AM MST
In force: 2 hr
Issued by: NWS Tucson, AZ
Area: Counties, with a storm outline in the text
Flood severity: None

Counties Cochise County, AZ, Pima County, AZ

The radar

The Tucson radar (KEMX), 27 km from the middle of the area, began a volume at 13:13 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, 1.2 hours before the alert went out and 42 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1302 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 608 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 061314
FFWTWC
AZC003-019-061515-
/X.NEW.KTWC.FF.W.0040.070806T1313Z-070806T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
613 AM MST MON AUG 6 2007

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
  WEST CENTRAL COCHISE COUNTY IN SOUTHEAST ARIZONA...

* UNTIL 815 AM MST

* AT 601 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN AREA OF SHOWERS AND THUNDERSTORMS REMAINING FAIRLY STATIONARY
  ALONG THE PIMA COCHISE COUNTY LINE. RADAR ESTIMATED RAINFALL RATES
  TO BE ONE TO ONE AND A HALF INCHES PER HOUR. A NATIONAL WEATHER
  SERVICE EMPLOYEE NOTED THAT AN INCH HAD FALLEN IN THE SPAN OF AN
  HOUR NEAR RITA RANCH. PIMA COUNTY ALERT FLOOD GAUGES NEAR DAVIDSON
  CANYON SHOW THAT 0.47 OF AN INCH HAD FALLEN THERE IN THE PAST 15
  MINUTES...WITH 0.87 OF AN INCH HAVING FALLEN IN THE PAST HOUR.

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

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. MOVE TO HIGHER GROUND.

LAT...LON 3224 11028 3186 11028 3186 11073 3224 11073

$$

WEATHER.GOV/TUCSON
SMR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 5:13 PM MST	Severe Thunderstorm Warning	TWC	Graham	47 min
Aug 5, 5:44 PM MST	Flash Flood Warning	TWC	Graham	2 hr
Aug 6, 3:16 AM MST	Areal Flood Advisory	TWC	Pima	119 min
Aug 6, 5:03 AM MST	Areal Flood Advisory	TWC	Cochise, Pima	4 hr
Aug 6, 5:44 AM MST	Flash Flood Watch	TWC		15 hr
Aug 6, 7:31 AM MST	Flash Flood Warning	TWC	Pima	89 min
Aug 6, 8:21 AM MST	Areal Flood Advisory	TWC	Graham, Greenlee, Pinal	114 min
Aug 6, 8:48 AM MST	Areal Flood Advisory	TWC	Cochise	117 min
Aug 6, 8:57 AM MST	Flash Flood Warning	TWC	Pima	2 hr
Aug 6, 9:29 AM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 6, 10:27 AM MST	Areal Flood Advisory	TWC	Cochise, Graham, Greenlee	93 min
Aug 6, 12:56 PM MST	Flash Flood Warning	TWC	Cochise	49 min

Nearby

Flash Flood Warnings in Arizona, 2007 Every flash flood warning in 2007

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.