Alert archive / Arizona / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 14, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 11, 1986, 5:05 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 55 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
- Aug 11, 1986, 5:05 PM MST (00:05 UTC)
- Expired
- Aug 11, 1986, 6:00 PM MST
- In force
- 55 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
Counties Maricopa County, AZ, Pinal 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 |
|---|---|---|---|
| Aug 11, 5:50 PM MST | Thunderstorm Wind 0 | Pinal, 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, 0.1 hours before the alert went out and 143 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
- 632 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1952 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -1 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, Aug 11, 1:27 PM MST, 3 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 130 PM MST MON AUG 11 1986 AT 130 PM MST...NATIONAL WEATHER SERVICE RADAR AND SATELLITE PHOTOS INDICATED SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND HAIL DEVELOPING IN ARIZONA MAINLY OVER THE NORTHWEST QUARTER OF THE STATE. CONDITIONS ARE FAVORABLE FOR MANY STRONG THUNDERSTORMS TO DEVELOP OVER ARIZONA THIS AFTERNOON AND EVENING. MOVEMENT IS EXPECTED TO BE FROM THE SOUTHEAST TOWARD THE NORTHWEST AT 10 TO 15 MILES PER HOUR IN SOUTHEAST ARIZONA WITH LITTLE OR SLOW MOVEMENT ELSEWHERE. IF YOU ARE ENGAGED IN ANY OUTDOOR ACTIVITY IN ARIZONA THIS AFTERNOON AND EVENING...YOU ARE URGED TO KEEP A WARY EYE OUT ON THE THUNDERSTORMS. STRONG GUSTY WINDS...VERY HEAVY RAIN...HAIL...AND DANGEROUS LIGHTNING ARE ASSOCIATED WITH SOME OF THE STORMS. HEAVY RAIN MAY CAUSE FLOODING OF HIGHWAY DIPS...DESERT WASHES AND SOME CITY STREETS. IF YOU ARE BOATING ON ANY OF THE LAKES...BE ALERT FOR STRONG GUSTY WINDS AND HEAD TO SHORE IF THUNDERSTORMS APPROACH YOUR AREA. IF YOU ARE DRIVING IN THE DESERT AREAS...BE PREPARED FOR AREAS OF DENSE BLOWING DUST NEAR THUNDERSTORMS. IF YOU ENCOUNTER RESTRICTED VISIBILITIES...PULL OFF TO THE SIDE OF THE ROAD...TAKE YOUR FOOT OFF THE BREAK AND TURN YOUR LIGHTS ALL THE WAY OFF. LISTEN TO YOUR RADIO...TV OR WEATHER RADIO FOR UPDATING STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. ELLIS
Special weather statement, Aug 11, 2:58 PM MST, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 250 PM MST MON AUG 11 1986 AT 245 PM MST...RADAR AND SATELLITE PHOTOS INDICATED SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND HAIL IN SOUTHEAST AND SOUTHCENTRAL MOHAVE COUNTY..AS WELL AS FAR WESTERN YAVAPAI COUNTY. THE HEAVIEST THUNDERSTORMS AT 245 PM WERE NEAR THE CITIES OF KINGMAN ..WIKIEUP..PEACH SPRINGS..SIGNAL..YARNELL..BAGDAD..AND HACKBERRY. REPORTS FROM KINGMAN AND WIKIEUP INDICATE THAT SOME OF THESE THUNDERSTORMS ARE PRODUCING STRONG WINDS..SMALL HAIL..AND BRIEF HEAVY RAINFALL. IF YOU ARE ENGAGED IN ANY OUTDOOR ACTIVITY IN THIS PORTION OF ARIZONA THROUGH THE REMAINDER OF THE AFTERNOON AND INTO THIS EVENING...YOU ARE URGED TO BE ON THE ALERT FOR THE SUDDEN ONSET OF POTENTIALLY HEAVY THUNDERSTORMS. STRONG GUSTY WINDS...HEAVY RAIN...HAIL...AND DANGEROUS LIGHTNING CAN BE ASSOCIATED WITH SOME OF THESE STORMS. ADDITIONALLY.. HEAVY RAIN MAY CAUSE FLOODING OF HIGHWAY DIPS...DESERT WASHES AND SOME CITY STREETS. IF YOU ARE DRIVING IN THE DESERT AREAS...BE PREPARED FOR AREAS OF DENSE BLOWING DUST NEAR THUNDERSTORMS. IF YOU ENCOUNTER RESTRICTED VISIBILITIES...PULL OFF TO THE SIDE OF THE ROAD...TAKE YOUR FOOT OFF THE BREAK AND TURN YOUR LIGHTS ALL THE WAY OFF. LISTEN TO YOUR RADIO...TV OR WEATHER RADIO FOR UPDATING STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. BRENNER
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 5:05 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 55 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1986Every severe thunderstorm warning in 1986
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.