Alert archive / Arizona / Tornado Warnings in 1987
Tornado Warning 3, NWS Phoenix, AZ
NWS Phoenix, AZ issued this tornado warning at Nov 1, 1987, 2:16 AM MST for Maricopa County, Arizona. It was in force for 59 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
- Nov 1, 1987, 2:16 AM MST (09:16 UTC)
- Expired
- Nov 1, 1987, 3:15 AM MST
- In force
- 59 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 1, 3:10 AM MST | Hail 1 | 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, 9.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 501 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPHX 010916
TORPHX
AZC013-011015-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
216 AM MST SUN NOV 1 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 315 AM MST FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH CENTRAL ARIZONA
...NORTH CENTRAL MARICOPA...WHICH INCLUDES THE NORTHEWEST
AND NORTHCENTERAL AREAS OF THE GREATER PHOENIX AREA.
A TORNADO WAS SIGHTED ON THE GROUND IN THE VICINITY OF 71ST AVE AND
CACTUS IN THE GREATER PHOENIX AREA BETWEEN SUNCITY AND GLENDALE.
IN ADDITION A FUNNEL CLOUD ANOTHER FUNNEL CLOUD WAS SIGHTED IN THE
SAME AREA. THE TORNADO WAS TRACKING NORTHNORTHEAST MOVING TOWARDS
WEST PEORIA AND EVENTUALLY DEER VALLEY.
INTENSE AND SEVERE THUNDERSTORMS WILL CONTINUE THROUGH MARICOPA AND
PINAL COUNTIES AND DAMAGING WINDS AND POSSIBLY A FEW MORE TORNADOES
COULD DEVELOP THROUGH THE MORNING HOURS.
THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET }INTO A DITCH OR CULVERT.The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 1, 12:21 AM MST | Severe Thunderstorm Warning | PSR | Maricopa | 39 min |
| Nov 1, 4:56 AM MST | Flash Flood Warning | PSR | Mohave | 2 hr |
| Nov 1, 9:30 AM MST | Flash Flood Warning | PSR | Mohave | 4 hr |
Nearby
Tornado Warnings in Arizona, 1987Every tornado warning in 1987Tornadoes in 1987
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.