Alert archive / Arizona / Flash Flood Warnings in 2008

Flash Flood Warning 49, NWS Tucson, AZ

August 3, 2008Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 3, 2008, 6:28 PM MST for Cochise County, Arizona. It was in force for 92 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
Aug 3, 2008, 6:28 PM MST (01:28 UTC)
Expired
Aug 3, 2008, 8:00 PM MST
In force
92 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 101 km from the middle of the area, began a volume at 01:30 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, 1.5 hours before the alert went out and 135 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 00:00Z on 2008-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 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 00:00Z on 2008-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939Sfc1 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
98 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
2527 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
-26 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 040128
FFWTWC
AZC003-040300-
/O.NEW.KTWC.FF.W.0049.080804T0128Z-080804T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
628 PM MST SUN AUG 3 2008

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN COCHISE COUNTY IN SOUTHEAST ARIZONA...
  THIS INCLUDES THE CITY OF BISBEE...

* UNTIL 800 PM MST

* AT 617 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. THE AREA
  HARDEST HIT WAS NEAR ELFRIDA AND AROUND MCNEAL. ADDITIONAL STORMS   
  OVER THE AREA WILL MAKE EXISTING FLOODING PROBLEMS MORE LIFE       
  THREATENING. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  ELFRIDA..MCNEAL...PORTAL...AND CHIRICAHUA NATIONAL MONUMENT.

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 3143 10995 3166 10995 3218 10922 3219 10907
      3184 10907 3147 10968 3135 10977

$$
1 follow-up statement
000 
WGUS75 KTWC 040303
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
803 PM MST SUN AUG 3 2008

AZC003-040312-
/O.EXP.KTWC.FF.W.0049.000000T0000Z-080804T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE AZ-
803 PM MST SUN AUG 3 2008

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN COCHISE
COUNTY...

THE WARNING HAS BE REPLACED BY AN URBAN AND SMALL STREAM FLOOD 
ADVISORY THROUGH 1015 PM MST FOR THE ENTIRE COUNTY. AT 855 PM 
MST...THE HEAVIEST RAINFALL WAS NEAR WILLCOX AND HUACHUCA CITY. 

LAT...LON 3143 10995 3166 10995 3218 10922 3219 10907
      3184 10907 3147 10968 3135 10977

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 5:26 PM MSTSevere Thunderstorm WarningTWCCochise34 min
Aug 3, 6:10 PM MSTAreal Flood AdvisoryTWCCochise110 min
Aug 3, 7:18 PM MSTAreal Flood AdvisoryTWCPima, Santa Cruz3 hr
Aug 3, 7:44 PM MSTAreal Flood AdvisoryTWCCochise3 hr
Aug 3, 7:46 PM MSTSevere Thunderstorm WarningTWCPima44 min
Aug 3, 8:17 PM MSTFlash Flood WarningTWCPima118 min
Aug 3, 10:15 PM MSTAreal Flood AdvisoryTWCCochise, Pima, Santa Cruz2 hr
Aug 3, 11:20 PM MSTFlash Flood WarningTWCPima85 min
Aug 4, 7:53 AM MSTAreal Flood AdvisoryTWCPima112 min
Aug 4, 2:05 PM MSTSevere Thunderstorm WarningTWCPima, Pinal40 min

Nearby

Flash Flood Warnings in Arizona, 2008Every flash flood warning in 2008

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.