Alert archive / Arizona / Flash Flood Warnings in 1993
Flash Flood Warning 21, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Jan 17, 1993, 8:20 AM MST for Apache County, Arizona. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jan 17, 1993, 8:20 AM MST (15:20 UTC)
- Expired
- Jan 17, 1993, 3:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Apache County, AZ
The nearest sounding before it
Winslow (Autob), AZ (KINW), launched 12:00Z, 3.3 hours before the alert went out and 118 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
- 879 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- 46 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 171523
FFWPHX
AZC007-005-001-017-013-025-172200-
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX ARIZONA
820 AM MST SUN JAN 17 1993
THE NATIONAL WEATHER SERVICE IN PHOENIX ARIZONA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 300 PM MST
FOR THE FOLLOWING LOCATIONS...
IN EAST CENTRAL ARIZONA
...GILA COUNTY
IN NORTH CENTRAL ARIZONA
...SOUTHERN COCONINO COUNTY
IN NORTHEAST ARIZONA
...SOUTHERN APACHE COUNTY...SOUTHERN NAVAJO COUNTY
IN SOUTH CENTRAL ARIZONA
...EXTREME NORTHERN MARICOPA COUNTY...THIS DOES NOT INCLUDE THE
PHOENIX METRO AREA
IN WEST CENTRAL ARIZONA
...SOUTHEASTERN YAVAPAI COUNTY
THE NATIONAL WEATHER SERVICE HAS EXTENDED AND EXPANDED THE FLOOD AND
FLASH FLOOD WARNING UNTIL 3 PM THIS AFTERNOON. THE WARNING AREA HAS ALSO
BEEN EXPANDED TO INCLUDE THE AREA TO THE NORTH OF THE WHITE MOUNTAINS.
HEAVY RAINFALL HAS BEEN CONTINUING THROUGHOUT CENTRAL ARIZONA AND IS
EXPECTED TO CONTINUE FOR THE NEXT SEVERAL HOURS. WITH THE SNOW LEVEL
MAINLY ABOVE 7000 FEET...COPIOUS AMOUNTS OF RUNOFF IS EXPECTED IN THE
STREAMS AND WASHES DRAINING THE MOGOLLON RIM AND WHITE MOUNTAINS AS THE
RAIN MELTS THE SNOWPACK.
EVEN AFTER THE SHOWERS MOVE ON...THE DANGER OF HIGH WATER IN STREAMS
WILL CONTINUE DUE TO THE LAG TIME REQUIRED FOR THE WATER TO TRAVEL DOWN
TO LOWER ELEVATIONS.
MANY UNPAVED SECONDARY ROADS IN AND AROUND THE WARNING AREA MAY BE
IMPASSABLE DUE TO THE MUDDY CONDITIONS.
FLASH FLOODING IS MOST DANGEROUS IN THE MOUNTAINS...ALONG STREAMS IN
NARROW STEEP WALLED CANYONS. MANY DEATHS HAVE RESULTED WHEN MOTORISTS
TRIED TO OUTRACE A FLOOD IN THESE CANYONS. CLIMB TO SAFETY IF A FLOOD
DEVELOPS.
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DONT TRY TO CROSS
FLOODING WASHES OR STREAMS. NEVER DRIVE ONTO A BRIDGE COVERED BY
WATER. STAY OFF FLOODED CITY STREETS. OUTSIDE THE CITY...STAY ON MAIN
HIGHWAYS. AVOID SECONDARY ROADS AND FARM ROADS.
LOVEGROVEThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 4:35 AM MST | Flash Flood Warning | PSR | Gila, Navajo | 4 hr |
| Jan 17, 4:35 AM MST | Flash Flood Warning | PSR | Coconino, Yavapai | 4 hr |
| Jan 17, 4:35 AM MST | Flash Flood Warning | PSR | Maricopa | 4 hr |
| Jan 17, 8:20 AM MST | Flash Flood Warning | PSR | Coconino, Gila, Yavapai | 7 hr |
| Jan 17, 8:20 AM MST | Flash Flood Warning | PSR | Maricopa | 7 hr |
| Jan 17, 8:20 AM MST | Flash Flood Warning | PSR | Navajo | 7 hr |
| Jan 17, 12:32 PM MST | Tornado Warning | PSR | Maricopa | 28 min |
| Jan 17, 2:02 PM MST | Tornado Warning | PSR | Maricopa | 33 min |
Nearby
Flash Flood Warnings in Arizona, 1993Every flash flood warning in 1993
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.