Alert archive / Arizona / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 22, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 29, 1992, 7:32 PM MST for Maricopa County, Arizona. It was in force for 118 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 29, 1992, 7:32 PM MST (02:32 UTC)
- Expired
- Jul 29, 1992, 9:30 PM MST
- In force
- 118 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 29, 9:33 PM MST | Thunderstorm Wind 54 | Maricopa, AZ |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 2.5 hours before the alert went out and 198 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.
- Mixed-layer CAPE
- 1352 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 2273 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Jul 29, 2:49 PM MST, 4 hours 43 minutes before
AZZALL-300100-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
245 PM MST WED JUL 29 1992
...THUNDERSTORMS WITH HEAVY RAIN AND STRONG GUSTY WINDS ARE DEVELOPING
IN ARIZONA THIS AFTERNOON AND ARE EXPECTED THROUGH THIS EVENING...
NATIONAL WEATHER SERVICE RADAR AND SATELLITE PICTURES SHOWED NUMEROUS
SHOWERS AND THUNDERSTORMS ALONG THE MOGOLLON RIM...WHITE MOUNTAINS AND
IN FAR SOUTHERN ARIZONA EARLY THIS AFTERNOON. THERE WERE ALSO SCATTERED
SHOWERS AND THUNDERSTORMS DEVELOPING IN NORTHWEST ARIZONA. SOME
THUNDERSTORMS WERE PRODUCING HEAVY RAIN AND POSSIBLY STRONG GUSTY WINDS.
MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS SLOWLY TOWARD THE
SOUTHWEST.
A LOW PRESSURE SYSTEM ALOFT WAS MOVING NORTHWARD FROM THE NORTHERN GULF
OF CALIFORNIA TOWARD ARIZONA THIS AFTERNOON. THIS SYSTEM...IN
COMBINATION WITH A VERY UNSTABLE AND MOIST AIRMASS IS RESPONSIBLE FOR
PRODUCING THE SHOWERS AND THUNDERSTORMS...ESPECIALLY IN THE DESERTS.
SHOWERS AND THUNDERSTORMS IN SOUTHERN ARIZONA ARE EXPECTED TO CONTINUE
DEVELOPING FARTHER NORTH THIS AFTERNOON AND EVENING AS THE LOW PRESSURE
SYSTEM MOVES INTO THE STATE. MEANWHILE...SHOWERS AND THUNDERSTORMS THAT
WERE ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS EARLY THIS AFTERNOON ARE
EXPECTED TO MOVE AND DEVELOP TOWARD THE SOUTHWEST.
AN EXPLOSIVE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS IS POSSIBLE IN
THE SOUTHCENTRAL...SOUTHWEST AND SOUTHERN DESERTS OF ARIZONA LATE THIS
AFTERNOON OR TONIGHT. THIS IS DUE TO THE EXPECTED INTERACTION OF
OUTFLOW FROM THE THUNDERSTORMS THAT WERE ALONG THE MOGOLLON RIM AND THE
THUNDERSTORMS THAT WERE IN FAR SOUTHERN ARIZONA EARLY THIS AFTERNOON.
STRONG...GUSTY...POSSIBLY DAMAGING WINDS WITH BLOWING DUST MAY PRECEDE
THUNDERSTORMS IN THE DESERTS...PARTICULARLY BETWEEN PHOENIX...TUSCON...
AND GILA BEND. AND...SOME THUNDERSTORMS ARE EXPECTED TO PRODUCE
HEAVY RAIN.
PLEASE BE ALERT FOR THREATENING WEATHER IN ARIZONA THIS AFTERNOON AND
TONIGHT. IF YOU OBSERVE THREATENING WEATHER...SUCH AS LIGHTNING...MOVE
TO A SAFE PLACE INDOORS. IF YOU ARE DRIVING...BE ALERT FOR SUDDEN
REDUCTION OF VISIBILITY DUE TO BLOWING DUST IN THE DESERT. IF YOU
ENCOUNTER POOR VISIBILITY...PULL OFF TO THE SIDE OF THE ROAD...PARK...
TAKE YOUR OFF THE BRAKE AND TURN YOUR LIGHTS ALL THE WAY OFF. ALSO...BE
ALERT FOR FLOODING OF HIGHWAY DIPS. IF YOU DO NOT KNOW WHETHER OR NOT IT
IS SAFE FOR YOUR VEHICLE TO DRIVE THROUGH A FLOODED ROAD...STAY AWAY
FROM THE FLOODED AREA...BETTER TO PLAY IT SAFE. STAY AWAY FROM FLASH
FLOOD PRONE AREAS...SUCH AS LOW AREAS...NORMALLY DRY WASHES...AND
NARROW STEEP-WALLED CANYONS.
STAY TUNED TO YOUR RADIO...TV...OR WEATHER RADIO ON THE PUBLIC SERVICE
BAND FOR THE LATEST STATEMENTS AND POSSIBLE WATCHES OR WARNINGS FROM THE
NATIONAL WEATHER SERVICE.
CRAIG ELLISSpecial weather statement, Jul 29, 2:54 PM MST, 4 hours 38 minutes before
AZZALL-300100-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
245 PM MST WED JUL 29 1992
...THUNDERSTORMS WITH HEAVY RAIN AND STRONG GUSTY WINDS ARE DEVELOPING
IN ARIZONA THIS AFTERNOON AND ARE EXPECTED THROUGH THIS EVENING...
NATIONAL WEATHER SERVICE RADAR AND SATELLITE PICTURES SHOWED NUMEROUS
SHOWERS AND THUNDERSTORMS ALONG THE MOGOLLON RIM...WHITE MOUNTAINS AND
IN FAR SOUTHERN ARIZONA EARLY THIS AFTERNOON. THERE WERE ALSO SCATTERED
SHOWERS AND THUNDERSTORMS DEVELOPING IN NORTHWEST ARIZONA. SOME
THUNDERSTORMS WERE PRODUCING HEAVY RAIN AND POSSIBLY STRONG GUSTY WINDS.
MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS SLOWLY TOWARD THE
SOUTHWEST.
A LOW PRESSURE SYSTEM ALOFT WAS MOVING NORTHWARD FROM THE NORTHERN GULF
OF CALIFORNIA TOWARD ARIZONA THIS AFTERNOON. THIS SYSTEM...IN
COMBINATION WITH A VERY UNSTABLE AND MOIST AIRMASS IS RESPONSIBLE FOR
PRODUCING THE SHOWERS AND THUNDERSTORMS...ESPECIALLY IN THE DESERTS.
SHOWERS AND THUNDERSTORMS IN SOUTHERN ARIZONA ARE EXPECTED TO CONTINUE
DEVELOPING FARTHER NORTH THIS AFTERNOON AND EVENING AS THE LOW PRESSURE
SYSTEM MOVES INTO THE STATE. MEANWHILE...SHOWERS AND THUNDERSTORMS THAT
WERE ALONG THE MOGOLLON RIM AND WHITE MOUNTAINS EARLY THIS AFTERNOON ARE
EXPECTED TO MOVE AND DEVELOP TOWARD THE SOUTHWEST.
AN EXPLOSIVE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS IS POSSIBLE IN
THE SOUTHCENTRAL...SOUTHWEST AND SOUTHERN DESERTS OF ARIZONA INCLUDING
PHOENIX...TUCSON AND YUMA LATE THIS AFTERNOON OR TONIGHT. THIS IS DUE TO
THE EXPECTED INTERACTION OF OUTFLOW FROM THE THUNDERSTORMS THAT WERE
ALONG THE MOGOLLON RIM AND THE THUNDERSTORMS THAT WERE IN FAR SOUTHERN
ARIZONA EARLY THIS AFTERNOON.
STRONG...GUSTY...POSSIBLY DAMAGING WINDS WITH BLOWING DUST MAY PRECEDE
THUNDERSTORMS IN THE DESERTS...PARTICULARLY BETWEEN PHOENIX...TUSCON...
AND GILA BEND. AND...SOME THUNDERSTORMS ARE EXPECTED TO PRODUCE
HEAVY RAIN.
PLEASE BE ALERT FOR THREATENING WEATHER IN ARIZONA THIS AFTERNOON AND
TONIGHT. IF YOU OBSERVE THREATENING WEATHER...SUCH AS LIGHTNING...MOVE
TO A SAFE PLACE INDOORS. IF YOU ARE DRIVING...BE ALERT FOR SUDDEN
REDUCTION OF VISIBILITY DUE TO BLOWING DUST IN THE DESERT. IF YOU
ENCOUNTER POOR VISIBILITY...PULL OFF TO THE SIDE OF THE ROAD...PARK...
TAKE YOUR OFF THE BRAKE AND TURN YOUR LIGHTS ALL THE WAY OFF. ALSO...BE
ALERT FOR FLOODING OF HIGHWAY DIPS. IF YOU DO NOT KNOW WHETHER OR NOT IT
IS SAFE FOR YOUR VEHICLE TO DRIVE THROUGH A FLOODED ROAD...STAY AWAY
FROM THE FLOODED AREA...BETTER TO PLAY IT SAFE. STAY AWAY FROM FLASH
FLOOD PRONE AREAS...SUCH AS LOW AREAS...NORMALLY DRY WASHES...AND
NARROW STEEP-WALLED CANYONS.
STAY TUNED TO YOUR RADIO...TV...OR WEATHER RADIO ON THE PUBLIC SERVICE
BAND FOR THE LATEST STATEMENTS AND POSSIBLE WATCHES OR WARNINGS FROM THE
NATIONAL WEATHER SERVICE.
CRAIG ELLISThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:15 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 2 hr |
| Jul 29, 7:32 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 118 min |
| Jul 29, 9:16 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 104 min |
| Jul 29, 9:16 PM MST | Severe Thunderstorm Warning | PSR | Maricopa |
Nearby
Severe Thunderstorm Warnings in Arizona, 1992Every severe thunderstorm warning in 1992
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.