Severe Thunderstorm Warning 64, NWS Tucson, AZ

Issued

Jul 31, 1996, 2:10 PM MST (21:10 UTC)

Expired

Jul 31, 1996, 3:00 PM MST

In force

50 min

Issued by

NWS Tucson, AZ

Area

Whole counties

Counties Pima County, AZ, Santa Cruz County, AZ

The Tucson radar (KEMX), 66 km from the middle of the area, began a volume at 21:12 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.

000 
TTAA00 KTUS 312112 COR
SVRTUS
AZC019-023-312200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE TUCSON ARIZONA
210 PM MST WED JUL 31 1996
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ARIZONA
 
   ...SOUTHEASTERN PIMA COUNTY...NORTHERN SANTA CRUZ COUNTY
 
AT 208 PM MST A SEVERE THUNDERSTORM WAS LOCATED OVER INTERSTATE 19
OVER THE NORTHWEST PART OF SANTA CRUZ COUNTY. THE STORM WAS
LOCATED JUST TO THE SOUTHWEST OF ARIVACA JUNCTION OVER INTERSTATE
19.
 
MOVEMENT WAS TO THE EAST AT 10 MPH AND WILL AFFECT PORTIONS OF
FAR SOUTHEAST PIMA COUNTY AND NORTHERN SANTA CRUZ COUNTY WITH
DAMAGING WIND...LARGE HAIL...AND VERY HEAVY RAIN.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
...CORRECTION FOR INTERSTATE 19 INSTEAD OF I-10
 
DRB

NWS Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 9:28 AM MST, 4 hours 42 minutes earlier.

SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
930 AM MST WED JUL 31 1996

HIGH PRESSURE IN THE MID LEVELS REMAINS CENTERED OVER SOUTHEAST
ARIZONA WHILE THE 12Z SOUNDING AT TUCSON SHOWED FURTHER DRYING
FROM YESTERDAY. THE SOUNDING STILL CONTAINS SOME INSTABILITY
PRIMARILY TO FAIRLY COOL MID-LEVEL TEMPERATURES. NORTHWESTERLIES
WILL KICK IN BY 11 AM AND AS A RESULT FURTHER DRYING IS
ANTICIPATED ACROSS SOUTHEAST ARIZONA. ONLY EXPECT ISOLATED
THUNDERSTORMS OVER THE HIGHER TERRAIN WITH VERY LITTLE PRECIP AND
WITH A FEW STRONG MICROBURST TYPE STORMS.

ANTICIPATE ANOTHER BACK DOOR STYLE COLD FRONT TO MOVE INTO NEW
MEXICO AND NORTHERN MEXICO OVER THE NEXT 24 TO 36 HOURS. THIS
SUGGESTS THE MID-LEVEL SUBTROPICAL RIDGE WILL AMPLIFY OVER THE
WEST AND TREND TOWARD A PATTERN TYPE 2. HOWEVER...MODELS KEEP THE
CENTER OF A FAIRLY STRONG RIDGE OVER ARIZONA AND A TYPE 2 PATTERN
NEVER REALLY DEVELOPS. IF THE MODELS ARE CORRECT WE MAY BE IN FOR
A DRY SPELL ACROSS MUCH OF ARIZONA.  HOPEFULLY MOISTURE
ASSOCIATED WITH HURRICANE DOUGLAS HELPS TO FORM A LARGE MCS NEAR
AND OVER THE SOUTHERN GULF OF CALIFORNIA. WITH THE BACK DOOR COLD
FRONT IN MEXICO ENHANCING SOUTHEASTERLY FLOW A SURGE IS POSSIBLE
BY LATE THURSDAY OR FRIDAY...BUT...A LOT OF THINGS MUST COME
TOGETHER...HAVE TO WAIT AND SEE.  ON ANOTHER NOTE...DID ANYONE
NOTICE THE HEAT INDEX IN GUAYMAS YESTERDAY? IT WENT UP TO 133
DEGREES...MAKES HOUSTON SOUND COOL. TUS 000. MCCOLLUM

Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm warning in 1996

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.