Alert archive / Arizona / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 33, NWS Tucson, AZ

July 14, 2002Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 14, 2002, 4:44 PM MST for Pima County, Arizona. It was in force for 61 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
Jul 14, 2002, 4:44 PM MST (23:44 UTC)
Expired
Jul 14, 2002, 5:45 PM MST
In force
61 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pima County, AZ

The radar

The Tucson radar (KEMX), 35 km from the middle of the area, began a volume at 23:44 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 14, 3:00 PM MSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 11.7 hours before the alert went out and 14 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 12:00Z on 2002-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1354 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 12:00Z on 2002-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.193958Sfc1 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
1354 J/kg
Mixed-layer CIN
-301 J/kg
Mixed-layer LCL
1933 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

608 
WUUS55 KTWC 142344
SVRTWC
AZC019-150045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
445 PM MST SUN JUL 14 2002

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN PIMA COUNTY IN ARIZONA
    THIS INCLUDES THE CITIES OF...TUCSON...ORO VALLEY...GREEN VALLEY

* UNTIL 545 PM MST

* AT 445 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A LINE OF SEVERE THUNDERSTORMS FROM NEAR SUMMERHAVEN TO THE RINCONS
  JUST EAST OF TUCSON SOUTHWARD TO INTERSTATE 10 NEAR VAIL. MOVEMENT
  WAS TO THE WEST AT ABOUT 10 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  NORTHERN AND EASTERN TUCSON AT 455 PM MST
  GREEN VALLEY AT 510 PM MST
  ORO VALLEY AT 520 PM MST

DAMAGING WINDS...DEADLY LIGHTNING...AND HEAVY RAINS ARE LIKELY.

LAT...LON 3250 11055 3207 11047 3174 11054 3178 11106
          3222 11105 3250 11106

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 5:19 PM MSTSevere Thunderstorm WarningTWCPinal26 min
Jul 13, 5:44 PM MSTSevere Thunderstorm WarningTWCPinal31 min
Jul 14, 1:08 PM MSTSevere Thunderstorm WarningTWCSanta Cruz37 min
Jul 14, 1:46 PM MSTSevere Thunderstorm WarningTWCCochise44 min
Jul 14, 1:57 PM MSTSevere Thunderstorm WarningTWCSanta Cruz63 min
Jul 14, 2:29 PM MSTSevere Thunderstorm WarningTWCCochise31 min
Jul 14, 3:06 PM MSTSevere Thunderstorm WarningTWCSanta Cruz39 min
Jul 14, 3:33 PM MSTSevere Thunderstorm WarningTWCGraham, Greenlee57 min
Jul 14, 4:04 PM MSTSevere Thunderstorm WarningTWCPima41 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2002Every severe thunderstorm warning in 2002

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.