Alert archive / Arizona / Flash Flood Warnings in 2007

Flash Flood Warning 39, NWS Tucson, AZ

August 5, 2007Graham County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 5, 2007, 5:44 PM MST for Graham 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 5, 2007, 5:44 PM MST (00:44 UTC)
Expired: Aug 5, 2007, 7:45 PM MST
In force: 2 hr
Issued by: NWS Tucson, AZ
Area: Counties, with a storm outline in the text
Flood severity: None

County Graham County, AZ

The radar

The Tucson radar (KEMX), 144 km from the middle of the area, began a volume at 00:46 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 00:00Z, 0.7 hours before the alert went out and 147 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: 47 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 060047
FFWTWC
AZC009-060245-
/X.NEW.KTWC.FF.W.0039.070806T0044Z-070806T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
544 PM MST SUN AUG 5 2007

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL GRAHAM COUNTY IN SOUTHEAST ARIZONA...

* UNTIL 745 PM MST

* AT 540 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAIN FROM STRONG THUNDERSTORMS SOUTHEAST AND EAST OF SAFFORD
  ALONG HIGHWAY 70. MOVEMENT WAS TO THE NORTH AT 5 TO 10 MPH.

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

LAT...LON 3271 10969 3268 10926 3290 10936 3291 10957

$$

WEATHER.GOV/TUCSON

2 follow-up statements

000 
WGUS75 KTWC 060125
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
622 PM MST SUN AUG 5 2007

AZC009-060245-
/X.CON.KTWC.FF.W.0039.000000T0000Z-070806T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRAHAM AZ-
622 PM MST SUN AUG 5 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM MST FOR EAST
CENTRAL GRAHAM COUNTY...

AT 620 PM MST...SHOWERS AND THUNDERSTORMS WERE DIMINISHING ACROSS 
EAST CENTRAL GRAHAM COUNTY. LIGHT TO MODERATE RAINFALL WILL ADD TO 
RADAR RAINFALL ESTIMATES IN EXCESS OF 3 INCHES IN SOME AREAS JUST 
SOUTHEAST AND EAST OF SOLOMON...SOUTH OF AND ALONG HIGHWAY 70.

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

LAT...LON 3271 10969 3268 10926 3290 10936 3291 10957

$$

WEATHER.GOV/TUCSON

000 
WGUS75 KTWC 060216
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
714 PM MST SUN AUG 5 2007

AZC009-060224-
/X.CAN.KTWC.FF.W.0039.000000T0000Z-070806T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRAHAM AZ-
714 PM MST SUN AUG 5 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EAST CENTRAL GRAHAM
COUNTY...

SHOWERS AND THUNDERSTORMS GENERALLY ENDED BEFORE 7 PM MST ACROSS 
EAST CENTRAL GRAHAM COUNTY. SOME HEAVY FLOW WILL CONTINUE IN WASHES 
AND STREAMBEDS WITH PONDING OF WATERS ON ROADWAYS...ESPECIALLY ON 
AND AROUND HIGHWAY 70 EAST OF SAFFORD...BUT THE FLASH FLOOD WARNING 
HAS BEEN CANCELLED.

LAT...LON 3271 10969 3268 10926 3290 10936 3291 10957

$$

WEATHER.GOV/TUCSON

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 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, 6:13 AM MST	Flash Flood Warning	TWC	Cochise, Pima	2 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.