Alert archive / California / Flash Flood Warnings in 1996
Flash Flood Warning 2, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood warning at Jul 28, 1996, 3:35 PM PDT for Riverside County, California. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 28, 1996, 3:35 PM PDT (22:35 UTC)
- Expired
- Jul 28, 1996, 5:30 PM PDT
- In force
- 115 min
- Issued by
- NWS Los Angeles, CA
- Area
- Whole counties
County Riverside County, CA
The radar
The San Diego radar (KNKX), 134 km from the middle of the area, began a volume at 22:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 10.6 hours before the alert went out and 154 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
- 1719 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 32 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 KLAX 282238 FFWLAX CAC065-071-290030- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OXNARD CA 335 PM PDT SUN JUL 28 1996 THE NATIONAL WEATHER SERVICE IN OXNARD HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 530 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHERN CALIFORNIA ...NORTHWESTERN RIVERSIDE COUNTY ...SOUTHWESTERN SAN BERNARDINO COUNTY ...SPECIFICALLY THE FLASH FLOOD WARNING COVERS THE MORONGO INDIAN RESERVATION AND VICINITY...NORTH OF INTERSTATE 10. AT 330 PM A LARGE... THUNDERSTORM WAS NEARLY STATIONARY OVER THE SAN BERNADINO MOUNTAINS NEAR THE MORONGO INDIAN RESERVATION. RADAR INDICATES HEAVY RAIN IS OCCURRING ...WITH ESTIMATED RAINFALL RATES OVER 1.5 INCH PER HOUR...WHICH WILL LIK CAUSE FLASH FLOODING OF CREEKS AND CANYONS IN THE AREA. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. DANIELSON
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, Jul 28, 1:19 PM PDT, 2 hours 16 minutes before
CAZ013-018-019-280000- SPECIAL WATHER STATEMENT NATIONAL WEATHER SERVICE OXNARD CA 115 PM PDT SUN JUL 28 1996 ...SHOWERS AND THUNDERSTORMS ARE EXPECTED IN THE MOUNTAINS OF SOUTHERN CALIFORNIA THIS AFTERNOON AND EVENING... AT 112 PM PDT...RADAR AND SATELLITE DATA INDICATED THAT WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY WAS BREAKING OUT OVER THE MOUNTAINS OF SOUTHERN CALIFORNIA. THE HEAVIEST OF THESE SHOWERS WERE LOCATED OVER THE SAN BERNARDINO MOUNTAINS...THE SAN JACINTO MOUNTAINS...AND OVER THE MOUNTAINS OF SAN DIEGO NEAR THE MEXICAN BORDER. A THUNDERSTORM WAS ALSO LOCATED OVER THE MOJAVE DESERT JUST NORTH OF WRIGHTWOOD. WHILE THUNDERSTORMS WILL TEND TO DEVELOP FIRST OVER THE MOUNTAINS...UPPER LEVEL WINDS WILL TEND TO BLOW THESE STORMS AWAY FROM COASTAL VALLEYS AND INTO ADJACENT DESERT AREAS. AT 100 PM...A SPOTTER NEAR BIG BEAR IN THE SAN BERNARDINO MOUNTAINS REPORTED HEAVY DOWNPOURS...SMALL HAIL...FREQUENT LIGHTNING...AND GUSTY WINDS FROM A STORM IN THAT AREA. THESE CONDITIONS CAN BE EXPECTED TO OCCUR WITH THUNDERSTORM ACTIVITY THROUGHOUT THIS AFTERNOON AND EARLY EVENING. PEOPLE TRAVELING THROUGH OR PLANNING ANY OUTDOOR ACTIVITIES IN THE MOUNTAINS TODAY SHOULD BE AWARE OF POSSIBLE THUNDERSTORM ACTIVITY. SEEK SHELTER IF THUNDERSTORMS APPROACH AND AVOID STREAMS AND GULLEYS WHICH ARE PRONE TO RAPID FLOODING. DANIELSON
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 3:35 PM PDT | Flash Flood Warning | LOX | San Bernardino | 115 min |
Nearby
Flash Flood Warnings in California, 1996Every flash flood warning in 1996
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; radar from the NEXRAD Level II archive.