Alert archive / Arizona / Flash Flood Warnings in 1993
Flash Flood Warning 39, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Sep 12, 1993, 8:01 PM MST for Yavapai County, Arizona. It was in force for 89 min.
The area
The counties it named.
The facts
- Issued
- Sep 12, 1993, 8:01 PM MST (03:01 UTC)
- Expired
- Sep 12, 1993, 9:30 PM MST
- In force
- 89 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Yavapai County, AZ
The nearest sounding before it
Winslow (Autob), AZ (KINW), launched 00:00Z, 3.0 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
- 272 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 2288 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 33 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 130305 FFWPHX AZC013-025-130430- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHOENIX ARIZONA 801 PM MST SUN SEP 12 1993 THE NATIONAL WEATHER SERVICE IN PHOENIX ARIZONA HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 930 PM MST FOR THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ARIZONA ...FAR NORTHERN MARICOPA COUNTY IN WEST CENTRAL ARIZONA ...SOUTHERN YAVAPAI COUNTY INTENSE THUNDERSTORMS WERE CONTINUING AT 8 PM MST ACROSS FAR NORTHERN MARICOPA AND THE SOUTHERN HALF OF YAVAPAI COUNTIES. THE MOST INTENSE STORMS WERE NORTH OF LAKE PLEASANT ALONG THE MARICOPA...YAVAPAI COUNTY LINE AND NEAR CASTLE HOT SPRINGS TO THE NORTHWEST OF LAKE PLEASANT. AT 730 PM...WALNUT SIZE...INCH AN A HALF DIAMATER...HAIL FELL AT CASTLE HOT SPRINGS...WITH PEA TO MARBLE SIZE HAIL BEGINNING TO COVER THE GROUND AT 755 PM MST. OTHER THUNDERSTORMS IN SOUTHWEST YAVAPAI COUNTY WERE LIKELY TO MOVE THROUGH SOUTHERN YAVAPAI COUNTY BETWEEN 8 PM AND 930 PM...DUMPING ADDITIONAL HEAVY RAINFALL ON ALREADY SATURATED GROUND AND FLOWING WASHESMOTORISTS DRIVING THROUGH SOUTHERN YAVAPAI COUNTY AND FAR NORTHERN MARICOPA COUNTY SHOULD BE ON THE LOOKOUT FOR FLOODED WASHES...AND NOT ATTEMPT TO CROSS FLOODED LOW SPOTS AND HIGHWAY DIPS. OTHER THUNDERSTORMS IN THE PHOENIX METRO AREA OF MARICOPA COUNTY...AS WELL AS PINAL COUNTY HAVE DECREASED SOMEWHAT AT 8 PM MST...THEREFORE THE COMBINED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE ON SCHEDULE. HOWEVER...A FEW STRONG THUNDERSTORMS COULD CONTINUE OVER THESE AREAS UNTIL ABOUT 10 PM MST...SO PERSONS SHOULD KEEP A LOOKOUT FOR THREATENING WEATHER AND BE PREPARED TO TAKE APPROPRIATE ACTIONS. ONCE AGAIN...THE FLASH FLOOD AND SEVERE THUNDERSTORM WARNING FOR FAR NORTHERN MARICOPA AND SOUTHERN HALF OF YAVAPAI COUNTY WILL CONTINUE UNTIL 930 PM. SOME OF THE TOWNS INCLUDED IN THE WARNING ARE NEW RIVER...ROCK SPRINGS...CASTLE HOT SPRINGS...WICKENBURG AND THE CAVE CREEK...CARE FREE AREAS. 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. ESTLE &
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 5:17 PM MST | Flash Flood Warning | PSR | Pinal | 73 min |
| Sep 12, 5:17 PM MST | Severe Thunderstorm Warning | PSR | Pinal | 73 min |
| Sep 12, 6:30 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 90 min |
| Sep 12, 6:30 PM MST | Flash Flood Warning | PSR | Yavapai | 90 min |
| Sep 12, 6:30 PM MST | Severe Thunderstorm Warning | PSR | Yavapai | 90 min |
| Sep 12, 6:30 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 90 min |
| Sep 12, 8:01 PM MST | Flash Flood Warning | PSR | Maricopa | 89 min |
| Sep 12, 8:01 PM MST | Severe Thunderstorm Warning | PSR | Yavapai | 89 min |
| Sep 12, 8:01 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 89 min |
| Sep 12, 9:31 PM MST | Flash Flood Warning | PSR | Yavapai | 89 min |
| Sep 12, 9:31 PM MST | Flash Flood Warning | PSR | Maricopa | 89 min |
| Sep 12, 9:31 PM MST | Severe Thunderstorm Warning | PSR | Yavapai | |
| Sep 12, 9:31 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | |
| Sep 13, 2:24 PM MST | Severe Thunderstorm Warning | PSR | Gila | 66 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.