Alert archive / Arizona / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 58, NWS Tucson, AZ

July 27, 2013Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 27, 2013, 3:43 PM MST for Pima County, Arizona. It was in force for 47 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: Jul 27, 2013, 3:43 PM MST (22:43 UTC)
Expired: Jul 27, 2013, 4:30 PM MST
In force: 47 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon

County Pima County, AZ

The radar

The Tucson radar (KEMX), 112 km from the middle of the area, began a volume at 22:44 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 (KDMA), launched 12:00Z, 10.7 hours before the alert went out and 84 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: 911 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 1355 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 25 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 Jul 27, 2:50 PM MST, 53 minutes earlier.

Area forecast discussion, Jul 27, 2:50 PM MST, 53 minutes before

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In the hours before

Local storm report, Jul 27, 11:42 AM MST, 4 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
1142 AM MST SAT JUL 27 2013

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

0204 PM     TSTM WND GST     4 SE DOVE MOUNTAIN      32.43N 111.04W
07/26/2013  M61 MPH          PIMA               AZ   TRAINED SPOTTER

            61 MPH WIND GUST

&&

EVENT NUMBER TWC1300087

FRANCIS

Local storm report, Jul 27, 11:44 AM MST, 3 hours 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
1144 AM MST SAT JUL 27 2013

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

0204 PM     TSTM WND DMG     4 SE DOVE MOUNTAIN      32.43N 111.04W
07/26/2013                   PIMA               AZ   TRAINED SPOTTER

            SOME TREE BRANCHES DOWN... LARGE TREE SPLIT IN HALF...
            OCOTILLO AND AGAVE UPROOTED

&&

EVENT NUMBER TWC1300088

FRANCIS

Special weather statement, Jul 27, 11:58 AM MST, 3 hours 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1158 AM MST SAT JUL 27 2013

AZZ504-507-513-271945-
DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS INCLUDING
BISBEE/CANELO HILLS/MADERA CANYON AZ-TUCSON METRO AREA INCLUDING
TUCSON/GREEN VALLEY/MARANA/VAIL AZ-UPPER SAN PEDRO RIVER VALLEY
INCLUDING SIERRA VISTA/BENSON AZ-
1158 AM MST SAT JUL 27 2013

...SIGNIFICANT WEATHER ADVISORY FOR EXTREME EASTERN PIMA AND WESTERN
COCHISE COUNTIES UNTIL 1245 PM MST...

AT 1151 AM MST...THE PUBLIC REPORTED A STRONG THUNDERSTORM 17 MILES
SOUTHWEST OF BENSON...OR 25 MILES NORTHWEST OF SIERRA VISTA...MOVING
NORTHEAST AT 5 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

AREAS AFFECTED BY THIS STORM INCLUDE...THE EMPIRE AND WHETSTONE
MOUNTAINS AND KARTCHNER CAVERNS STATE PARK.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3198 11050 3190 11033 3182 11026 3174 11041
      3175 11066 3192 11075
TIME...MOT...LOC 1857Z 246DEG 4KT 3184 11055

CERNIGLIA

Special weather statement, Jul 27, 12:47 PM MST, 2 hours 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1247 PM MST SAT JUL 27 2013

AZZ507-513-272030-
DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS INCLUDING
BISBEE/CANELO HILLS/MADERA CANYON AZ-UPPER SAN PEDRO RIVER VALLEY
INCLUDING SIERRA VISTA/BENSON AZ-
1247 PM MST SAT JUL 27 2013

...SIGNIFICANT WEATHER ADVISORY FOR EXTREME SOUTHEASTERN PIMA...
NORTHEASTERN SANTA CRUZ AND WESTERN COCHISE COUNTIES UNTIL 130 PM
MST...

AT 1238 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 12 MILES NORTHWEST OF HUACHUCA CITY...OR 18
MILES NORTHWEST OF SIERRA VISTA...MOVING NORTHEAST AT 5 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

AREAS AFFECTED BY THIS STORM INCLUDE...BENSON...WHETSTONE AND
KARTCHNER CAVERNS STATE PARK.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3199 11023 3167 11022 3168 11055 3195 11053
TIME...MOT...LOC 1947Z 246DEG 4KT 3180 11041

CERNIGLIA

Special weather statement, Jul 27, 12:56 PM MST, 2 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1256 PM MST SAT JUL 27 2013

AZZ507-508-513-272045-
DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS INCLUDING
BISBEE/CANELO HILLS/MADERA CANYON AZ-EASTERN COCHISE COUNTY BELOW
5000 FEET INCLUDING DOUGLAS/WILLCOX AZ-UPPER SAN PEDRO RIVER VALLEY
INCLUDING SIERRA VISTA/BENSON AZ-
1256 PM MST SAT JUL 27 2013

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COCHISE COUNTY UNTIL 145
PM MST...

AT 1247 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM JUST NORTH OF INTERSTATE 10 NEAR TEXAS CANYON
OR BETWEEN EXITS 312 AND 316.  THIS IS ROUGHLY 12 MILES NORTHEAST OF
BENSON...OR 22 MILES SOUTHWEST OF WILLCOX.  THIS STORM IS MOVING
SLOWLY EAST SOUTHEAST.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

AREAS AFFECTED BY THIS STORM INCLUDE...DRAGOON.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3214 11021 3217 10998 3196 11002 3198 11022
TIME...MOT...LOC 1953Z 266DEG 7KT 3205 11011

CERNIGLIA

Local storm report, Jul 27, 2:21 PM MST, 1 hour 22 minutes 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
Jul 27, 11:03 AM MST	Areal Flood Advisory	TWC	Pima, Pinal	3 hr
Jul 27, 11:12 AM MST	Flash Flood Watch	TWC	Graham, Greenlee	8 hr
Jul 27, 11:18 AM MST	Flash Flood Warning	TWC	Pima, Pinal	3 hr
Jul 27, 11:58 AM MST	Special Weather Statement	TWC	Santa Cruz	47 min
Jul 27, 12:47 PM MST	Special Weather Statement	TWC	Santa Cruz	43 min
Jul 27, 12:56 PM MST	Special Weather Statement	TWC	Cochise	49 min
Jul 27, 1:42 PM MST	Flash Flood Warning	TWC	Cochise	2 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2013 Every severe thunderstorm warning in 2013

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.