Alert archive / Arizona / Flash Flood Warnings in 1989
Flash Flood Warning 9, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Aug 14, 1989, 5:34 PM MST for Yavapai County, Arizona. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 1989, 5:34 PM MST (00:34 UTC)
- Expired
- Aug 14, 1989, 8:00 PM MST
- In force
- 2 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Yavapai County, AZ
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Winslow (Autob), AZ (KINW), launched 00:00Z, 0.6 hours before the alert went out and 176 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
- 3625 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- -44 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 flash flood 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 14, 3:50 PM MST, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 400 PM MST MON AUG 14 1989 ...INTENSE LIGHTNING ALONG INTERSTATE 40 WEST OF ASH FORK... LIGHTNING DETECTORS HAVE BEEN SHOWING AN UNUSUAL AMOUNT OF LIGHTNING IN A THUNDERSTORM IN NORTHERN YAVAPAI COUNTY...WEST OF ASH FORK AND EAST OF SELIGMAN. THIS MAY MEAN THE STORM IS CAUSING HEAVY RAIN AND HAIL... ALTHOUGH IT IS NOT ALWAYS A RELIABLE INDICATOR OF STORM INTENSITY. MOTORISTS LEAVING THE MAIN HIGHWAYS IN THE AREA SHOULD WATCH OUT FOR FLOODING IN STREAMS AND WASHES. OTHER THUNDERSTORMS ARE DEVELOPING OVER A LARGE PART OF ARIZONA...FROM NORTHEAST MOHAVE AND WESTERN COCONINO COUNTIES SOUTHEAST INTO EAST CENTRAL AND SOUTHEAST ARIZONA. CONDITIONS ARE FAVORABLE FOR SOME OF THESE THUNDERSTORMS TO CAUSE STRONG WINDS AND HEAVY RAIN. THERE IS A GOOD CHANCE FOR DUST STORMS IN THE DESERTS BETWEEN TUCSON AND PHOENIX LATER THIS EVENING. LISTEN TO THE RADIO AND TV FOR MORE UPDATES(. TENHARKEL
Special weather statement, Aug 14, 5:30 PM MST, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 535 PM MST MON AUG 14 1989 STRONG THUNDERSTORMS ARE DEVELOPING OVER A LARGE PART OF ARIZONA...FROM NORTHEAST MOHAVE AND WESTERN COCONINO COUNTIES SOUTHEAST INTO EAST CENTRAL AND SOUTHEAST ARIZONA. CONDITIONS ARE FAVORABLE FOR SOME OF THESE THUNDERSTORMS TO CAUSE STRONG WINDS AND HEAVY RAIN. THERE IS A GOOD CHANCE FOR DUST STORMS IN THE DESERTS BETWEEN TUCSON AND PHOENIX LATER THIS EVENING. A SEVERE THUNDERSTORM WARNING WAS ISSUED FOR TUCSON AND EASTERN PIMA COUNTY UNTIL 700 PM. A FLASH FLOOD WARNING HAS BEEN ISSUED FOR A SMALL PART OF NORTHERN ARIZONA...BETWEEN SELIGMAN AND ASH FORK...UNTIL 700 PM. AND A LARGE PART OF NORTHERN ARIZONA HAS BEEN PUT IN FLASH FLOOD WATCH STATUS UNTIL 900 PM. CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS IN NORTH CENTRAL ARIZONA AND THOSE IN SOUTHEAST ARIZONA TO CONVERGE TOWARD THE CENTRAL PART OF THE STATE THIS EVENING...SO THERE IS A THREAT OF THUNDERSTORMS IN THE DESERT AROUND PHOENIX. BUT THE ACTIVITY IS SLOW MOVING...AND IF ANY THUNDER STORMS REACH THE METRO AREA...IT WILL PROBABLY BE WELL AFTER SUNSET. LISTEN TO THE RADIO OR WATCH TV TO STAY POSTED ON THE LATEST WEATHER INFORMAaTION AND POSSIBLE WARNINGS. TENHARKEL
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 5:00 PM MST | Flash Flood Warning | PSR | Yavapai | 105 min |
Nearby
Flash Flood Warnings in Arizona, 1989Every flash flood warning in 1989
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.