Alert archive / Arizona / Flash Flood Warnings in 1990
Flash Flood Warning 14, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Jul 13, 1990, 8:44 PM MST for Mohave County, Arizona. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1990, 8:44 PM MST (03:44 UTC)
- Expired
- Jul 13, 1990, 11:45 PM MST
- In force
- 3 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Mohave 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
Mercury/Desert R, NV (KDRA), launched 00:00Z, 3.7 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
- 3451 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 23 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 KLAS 140347 FFWLAS AZC015-NVC003-140645- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 844 PM PDT FRI JUL 13 1990 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 1145 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN NORTHWEST ARIZONA ...NORTHWESTERN MOHAVE COUNTY IN SOUTH NEVADA ...EASTERN CLARK COUNTY THUNDERSTORMS ARE OCCURRING IN EASTERN CLARK COUNTY. STEADY WINDS OF 50 MPH HAVE BEEN REPORTED AT ECHO BAY AND TEMPLE BAR IN THE NORTHERN PARTS OF THE LAKE MEAD RECREATIONAL AREA. ALSO THE VALLEY OF FIRE HAS REPORTED 2 TO 3 FEET OF WATER ON THE ROADWAYS ALONG WITH GALE FORCE WINDS. THE STORMS ARE EXPECTED TO REMAIN ACTIVE IN EASTERN CLARK COUNTY FOR THE NEXT TWO HOURS. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. STAYED TUNED TO NOAA WEATHER RADIO...TELEVISION OR LOCAL RADIO FOR UDATES ON THIS WEATHER SITURATION. EHB/0346Z
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:40 PM MST | Flash Flood Warning | PSR | Yavapai | 2 hr |
| Jul 13, 6:40 PM MST | Flash Flood Warning | PSR | La Paz, Mohave | 2 hr |
| Jul 13, 8:03 PM MST | Flash Flood Warning | PSR | La Paz, Yavapai | 117 min |
| Jul 13, 8:03 PM MST | Flash Flood Warning | PSR | Mohave | 117 min |
| Jul 13, 8:03 PM MST | Flash Flood Warning | PSR | Maricopa | 117 min |
| Jul 13, 8:03 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Mohave | 117 min |
| Jul 13, 8:03 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 117 min |
| Jul 13, 8:44 PM MST | Severe Thunderstorm Warning | PSR | Mohave | 3 hr |
| Jul 13, 10:42 PM MST | Flash Flood Warning | PSR | Mohave | 48 min |
| Jul 13, 10:42 PM MST | Severe Thunderstorm Warning | PSR | Mohave | 48 min |
| Jul 13, 11:34 PM MST | Flash Flood Warning | PSR | Mohave | 116 min |
| Jul 14, 1:41 AM MST | Flash Flood Warning | PSR | La Paz, Mohave | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 1990Every flash flood warning in 1990
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.