Alert archive / Arizona / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 127, NWS Tucson, AZ

September 12, 2006Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Sep 12, 2006, 4:56 PM MST for Cochise County, Arizona. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 12, 2006, 4:56 PM MST (23:56 UTC)
Expired: Sep 12, 2006, 6:00 PM MST
In force: 64 min
Issued by: NWS Tucson, AZ
Area: Counties, with a storm outline in the text

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 83 km from the middle of the area, began a volume at 23:58 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, 11.9 hours before the alert went out and 113 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: 30 J/kg
Mixed-layer CIN: -288 J/kg
Mixed-layer LCL: 2258 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 12, 2:06 PM MST, 2 hours 50 minutes earlier.

Area forecast discussion, Sep 12, 2:06 PM MST, 2 hours 50 minutes before

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Hazardous weather outlook, Sep 12, 3:08 PM MST, 1 hour 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
308 PM MST TUE SEP 12 2006

AZZ029-030-032>035-131300-
SOUTHEAST PINAL COUNTY-UPPER GILA RIVER VALLEY-
TOHONO OODHAM NATION-TUCSON METRO/MARANA/GREEN VALLEY-
SANTA CRUZ COUNTY-COCHISE COUNTY-
308 PM MST TUE SEP 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARIZONA AND SOUTHEAST ARIZONA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

...FLASH FLOOD WATCH IN EFFECT UNTIL 6 AM WEDNESDAY...

NUMEROUS THUNDERSTORMS HAVE ALREADY DEVELOPED THIS AFTERNOON
ACROSS MUCH OF SOUTHEAST ARIZONA AS AN AREA OF LOW PRESSURE OVER
NORTHERN MEXICO FEEDS MONSOON MOISTURE INTO THE REGION. THESE
THUNDERSTORMS ARE MOVING NORTH AT 15 MPH AND WILL CONTINUE TO
PRODUCE HEAVY RAINFALL WITH RATES OF ONE INCH PER HOUR POSSIBLE.
SOME OF THESE STORMS WILL BE SEVERE WITH STRONG GUSTY WINDS AND
HAIL UP TO THREE QUARTER INCH IN DIAMETER. THE THREAT FOR SEVERE
THUNDERSTORMS WILL END AFTER SUNSET...HOWEVER THUNDERSTORMS WILL
CONTINUE ACROSS THE AREA OVERNIGHT CONTINUING THE FLASH FLOOD THREAT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

DEPENDING ON THE AMOUNT OF SUNSHINE...ANOTHER ROUND OF STRONG
THUNDERSTORMS IS POSSIBLE ON WEDNESDAY BEFORE A SIGNIFICANT DRYING
TREND TAKES PLACE BY THE UPCOMING WEEKEND.

.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ019-131300-
NORTHERN GREENLEE COUNTY-
308 PM MST TUE SEP 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
ARIZONA.

.DAY ONE...THIS AFTERNOON AND TONIGHT
NUMEROUS THUNDERSTORMS HAVE ALREADY DEVELOPED THIS AFTERNOON
ACROSS MUCH OF SOUTHEAST ARIZONA AS AN AREA OF LOW PRESSURE OVER
NORTHERN MEXICO FEEDS MONSOON MOISTURE INTO THE REGION. THESE
THUNDERSTORMS ARE MOVING NORTH AT 15 MPH AND WILL CONTINUE TO
PRODUCE LOCALIZED AREAS OF HEAVY RAINFALL. SOME OF THESE STORMS
WILL BE SEVERE WITH STRONG GUSTY WINDS AND HAIL UP TO THREE QUARTER
INCH IN DIAMETER. THE THREAT FOR SEVERE THUNDERSTORMS WILL END
AFTER SUNSET...HOWEVER THUNDERSTORMS WILL CONTINUE ACROSS THE AREA
OVERNIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
DEPENDING ON THE AMOUNT OF SUNSHINE...ANOTHER ROUND OF STRONG
THUNDERSTORMS IS POSSIBLE ON WEDNESDAY BEFORE A SIGNIFICANT DRYING
TREND TAKES PLACE BY THE UPCOMING WEEKEND.

.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ031-131300-
WESTERN PIMA COUNTY-
308 PM MST TUE SEP 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARIZONA.

.DAY ONE...THIS AFTERNOON AND TONIGHT
SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON
ACROSS WESTERN PIMA COUNTY AS AN AREA OF LOW PRESSURE OVER
NORTHERN MEXICO FEEDS MONSOON MOISTURE INTO THE REGION. THESE
THUNDERSTORMS WILL MOVE NORTH AT 5-10 MPH AND WILL PRODUCE
LOCALIZED AREAS OF HEAVY RAINFALL. SOME OF THESE STORMS WILL BE
SEVERE WITH STRONG GUSTY WINDS AND HAIL UP TO THREE QUARTER INCH
IN DIAMETER. THE THREAT FOR SEVERE THUNDERSTORMS WILL END AFTER
SUNSET...HOWEVER THUNDERSTORMS WILL CONTINUE ACROSS THE AREA
OVERNIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
DEPENDING ON THE AMOUNT OF SUNSHINE...ANOTHER ROUND OF STRONG
THUNDERSTORMS IS POSSIBLE ON WEDNESDAY BEFORE A SIGNIFICANT DRYING
TREND TAKES PLACE BY THE UPCOMING WEEKEND.

.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Sep 12, 11:26 AM MST, 5 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
1126 AM MST TUE SEP 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1111 AM     FLASH FLOOD      8 SE BENSON             31.88N 110.21W
09/12/2006                   COCHISE            AZ   LAW ENFORCEMENT

            TRUCK STRUCK IN RISING WATER IN SAINT DAVID. SWIFT WATER
            RESCUE REQUIRED.

&&

EVANS

Local storm report, Sep 12, 11:46 AM MST, 5 hours 10 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TUCSON AZ
1146 AM MST TUE SEP 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1111 AM     FLASH FLOOD      8 SE BENSON             31.88N 110.21W
09/12/2006                   COCHISE            AZ   LAW ENFORCEMENT

            TRUCK STUCK IN RISING WATER IN SAINT DAVID. SWIFT WATER
            RESCUE REQUIRED.

&&

EVANS

Local storm report, Sep 12, 1:56 PM MST, 3 hours before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 11, 5:33 PM MST	Flash Flood Warning	TWC	Cochise	27 min
Sep 12, 10:38 AM MST	Flash Flood Warning	TWC	Cochise	7 min
Sep 12, 12:02 PM MST	Flash Flood Watch	TWC		12 hr
Sep 12, 12:41 PM MST	Flash Flood Warning	TWC	Cochise, Graham	4 min
Sep 12, 1:02 PM MST	Flash Flood Warning	TWC	Cochise, Graham
Sep 12, 1:42 PM MST	Flash Flood Warning	TWC	Santa Cruz	3 min
Sep 12, 1:45 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	45 min
Sep 12, 3:07 PM MST	Severe Thunderstorm Warning	TWC	Pima, Santa Cruz	38 min
Sep 12, 3:40 PM MST	Severe Thunderstorm Warning	TWC	Graham	31 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2006 Every severe thunderstorm warning in 2006

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.