Alert archive / Arizona / Flash Flood Warnings in 1992
Flash Flood Warning 22, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Aug 25, 1992, 2:05 PM MST for Mohave County, Arizona. It was in force for 115 min.
The area
The counties it named.
The facts
- Issued
- Aug 25, 1992, 2:05 PM MST (21:05 UTC)
- Expired
- Aug 25, 1992, 4:00 PM MST
- In force
- 115 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Mohave County, AZ
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 9.1 hours before the alert went out and 226 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
- 2851 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- -15 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 252109 FFWPHX AZC005-015-252300- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHOENIX ARIZONA 205 PM MST TUE AUG 25 1992 THE NATIONAL WEATHER SERVICE IN PHOENIX ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 400 PM MST FOR THE FOLLOWING LOCATIONS... IN NORTH CENTRAL ARIZONA ...EXTREME NORTHWESTERN COCONINO COUNTY IN NORTHWEST ARIZONA ...EXTREME NORTHEASTERN MOHAVE COUNTY STRONG THUNDERSTORMS HAVE DEVELOPED OVER EXTREME SOUTHERN UTAH...AND IN ARIZONA NEAR THE UTAH BORDER NORTHWEST OF JACOB LAKE. THE STORMS WERE MOVING TOWARD THE EAST 15 TO 20 MPH. SHORTLY BEFORE 2 PM...AT PIPE SPRINGS NATIONAL MONUMENT...ON STATE ROU 389...AN INCH OF RAIN WAS REPORTED IN ABOUT A HALF HOUR...ALONG WITH SOME HAIL. AS A RESULT OF THE RAIN FLOODING OF ROUTE 389 IN THIS AREA HAS TAKEN PLACE...AND MOST WASHES WERE RUNNING. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DONT TRY TO CROSS FPLOODING 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...ESPECIALLY AT NIGHT.
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 25, 1:21 PM MST, 44 minutes before
AZZALL-252300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX ARIZONA 120 PM MST TUE AUG 25 1992 ...THUNDERSTORMS DEVELOPING OVER NORTHERN ARIZONA... SCATTERED THUNDERSTORMS BEGAN TO DEVELOP OVER NORTHERN ARIZONA EARLY THIS AFTERNOON. AS OF 1 PM THE HEAVIEST STORMS WERE LOCATED ALONG AND NEAR ARIZONAS NORTHERN BORDER WITH ANOTHER HEAVY STORM JUST TO THE NORTHEAST OF FLAGSTAFF. SOME OF THESE HEAVY THUNDER STORMS MAY PRODUCE SOME BRIEF HEAVY RAINFALL AND SMALL HAIL. WINDS ALOFT ARE LIGHT SO THESE THUNDERSTORMS WILL HAVE LITTLE MOVEMENT. SCATTERED THUNDERSTORMS WILL CONTINUE OVER PORTIONS OF NORTHERN ARIZONA THIS AFTERNOON. THEY WILL GRADUALLY END EARLY THIS EVENING. DKS8
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 2:05 PM MST | Flash Flood Warning | PSR | Coconino | 115 min |
Nearby
Flash Flood Warnings in Arizona, 1992Every flash flood 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; the sounding from the Mesonet's radiosonde archive.