Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 6, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Jan 6, 2016, 1:34 PM PST for 4 counties in California. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 6, 2016, 1:34 PM PST (21:34 UTC)
- Expired
- Jan 6, 2016, 4:30 PM PST
- In force
- 3 hr
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 46 km from the middle of the area, began a volume at 21:36 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 6, 3:32 PM PST | FLOOD | 3 Nne Riverside, CA | 14TH STREET OFF RAMP ON HIGHWAY 91 IN RIVERSIDE CLOSED DUE TO FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.6 hours before the alert went out and 80 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
- 17 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
498
WGUS56 KSGX 062134
FFWSGX
CAC059-065-071-073-070030-
/O.NEW.KSGX.FF.W.0006.160106T2134Z-160107T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
134 PM PST WED JAN 6 2016
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN ORANGE COUNTY IN SOUTHWESTERN CALIFORNIA...
SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
RIVERSIDE COUNTY IN SOUTHERN CALIFORNIA...
NORTHWESTERN SAN DIEGO COUNTY IN SOUTHWESTERN CALIFORNIA...
* UNTIL 430 PM PST
* AT 130 PM PST...DOPPLER RADAR DEPICTED A LARGE AREA OF HEAVY RAIN
ACROSS THE WARNED AREA IN THE INLAND EMPIRE AND NORTHWEST SAN
DIEGO COUNTY. FLASH FLOODING WILL LIKELY BEGIN SHORTLY IN DRY
WASHED AND URBAN AREAS. BURN SCAR AREAS WILL POTENTIALLY DEVELOP
DEBRIS FLOWS. RAINFALL RATES OF 0.50 TO 0.75 INCHES PER HOUR ARE
OCCURRING IN THE HEAVIEST DOWNPOURS.
* SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
RIVERSIDE...SAN BERNARDINO...MORENO VALLEY...OCEANSIDE...
CARLSBAD...TEMECULA...VISTA...MISSION VIEJO...REDLANDS AND SAN
CLEMENTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3370 11750 3394 11741 3421 11726 3404 11698
3369 11695 3336 11700 3306 11682 3290 11725
3297 11726 3317 11735 3333 11750 3346 11768
3361 11780
$$
TARDY3 follow-up statements
107
WGUS76 KSGX 062248
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
248 PM PST WED JAN 6 2016
CAC059-065-071-073-070030-
/O.CON.KSGX.FF.W.0006.000000T0000Z-160107T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE CA-SAN BERNARDINO CA-RIVERSIDE CA-SAN DIEGO CA-
248 PM PST WED JAN 6 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM PST FOR
SOUTHEASTERN ORANGE...SAN BERNARDINO...RIVERSIDE AND NORTHWESTERN SAN
DIEGO COUNTIES...
AT 243 PM PST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
AREA. FLASH FLOODING WILL LIKELY BEGIN SHORTLY.
EXCESSIVE RAINFALL OVER THE BURN SCARS WILL RESULT IN DEBRIS FLOW.
SAN TIMOTEO CREEK IN THE INLAND EMPIRE HAS RECEIVED HEAVY
RAINFALL EXCEEDING AN INCH FOR FLASH FLOODING.
WIDESPREAD URBAN FLOODING IS EXPECTED IN THE WARNED AREA.
DRY CREEKS AND WASHES WILL RAPIDLY FILL WITH FAST FLOWING WATER.
RAINFALL RATES OF 0.25 TO 0.50 ARE COMMON IN THE HEAVIEST SHOWERS
AND THUNDERSTORMS.
SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
RIVERSIDE...SAN BERNARDINO...MORENO VALLEY...OCEANSIDE...CARLSBAD...
TEMECULA...VISTA...MISSION VIEJO...REDLANDS AND SAN CLEMENTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3370 11750 3394 11741 3421 11726 3404 11698
3369 11695 3336 11700 3306 11682 3290 11725
3297 11726 3317 11735 3333 11750 3346 11768
3361 11780
$$
TARDY611
WGUS76 KSGX 070003
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
403 PM PST WED JAN 6 2016
CAC059-065-071-073-070030-
/O.CON.KSGX.FF.W.0006.000000T0000Z-160107T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE CA-SAN BERNARDINO CA-RIVERSIDE CA-SAN DIEGO CA-
403 PM PST WED JAN 6 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM PST FOR
SOUTHEASTERN ORANGE...SAN BERNARDINO...RIVERSIDE AND NORTHWESTERN SAN
DIEGO COUNTIES...
AT 400 PM PST...DOPPLER RADAR INDICATED WIDESPREAD HEAVY RAIN HAS TAPPERED
TO NUMEROUS SHOWERS. RAINFALL RATES OF NOW 0.10 TO 0.20 INCHES PER HOUR.
ADDITIONAL HEAVY RAIN WILL ENTER RIVERSIDE AND NORTHERN SAN DIEGO COUNTY
DURING THE EVENING HOURS FROM 7 TO 10 PM. DURING THIS PERIOD RAINFALL RATES
WILL INCREASE TO 0.25 TO 0.50 INCHES PER HOUR.
SMALL STREAMS AND DRY CREEK WILL CONTINUE TO RISE AND FLOW WITH SWIFT WATER.
SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
RIVERSIDE...SAN BERNARDINO...MORENO VALLEY...OCEANSIDE...CARLSBAD...
TEMECULA...VISTA...MISSION VIEJO...REDLANDS AND SAN CLEMENTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3370 11750 3394 11741 3421 11726 3404 11698
3369 11695 3336 11700 3306 11682 3290 11725
3297 11726 3317 11735 3333 11750 3346 11768
3361 11780
$$
TARDY736
WGUS76 KSGX 070034
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
434 PM PST WED JAN 6 2016
CAC059-065-071-073-070041-
/O.EXP.KSGX.FF.W.0006.000000T0000Z-160107T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE CA-SAN BERNARDINO CA-RIVERSIDE CA-SAN DIEGO CA-
434 PM PST WED JAN 6 2016
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN ORANGE...SAN
BERNARDINO...RIVERSIDE AND NORTHWESTERN SAN DIEGO COUNTIES HAS
EXPIRED...
LIGHT TO MODERATE SHOWERS WILL CONTINUE THROUGH 6 PM. ANOTHER AREA
OF HEAVY RAIN IS EXPECTED FROM 6 TO 9 PM THIS EVENING. THIS NEXT
PERIOD OF RAIN WILL PRODUCE 0.25 TO 0.50 INCH PER HOUR RAINFALL
RATES AND MAY CAUSE ADDITIONAL FLOODING. AREA CREEKS AND SMALL
STREAMS WILL REMAIN HIGH. WATER CHANNELS WILL BE DANGEROUS. OBEY
ROAD CLOSURE SIGNS.
LAT...LON 3370 11750 3394 11741 3421 11726 3404 11698
3369 11695 3336 11700 3306 11682 3290 11725
3297 11726 3317 11735 3333 11750 3346 11768
3361 11780
$$
TARDYThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 4:11 PM PST | Flash Flood Warning | SGX | San Diego | 3 hr |
| Jan 5, 6:46 PM PST | Areal Flood Advisory | SGX | Riverside, San Diego | 4 hr |
| Jan 5, 8:28 PM PST | River Flood Warning | SGX | San Diego | 9 hr |
| Jan 6, 4:05 AM PST | Wind Advisory | SGX | Orange, San Diego | 14 hr |
| Jan 6, 4:28 AM PST | Flash Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 32 hr |
| Jan 6, 10:36 AM PST | Beach Hazards Statement | SGX | Orange, San Diego | 15 hr |
| Jan 6, 10:36 AM PST | High Surf Warning | SGX | Orange, San Diego | 59 hr |
| Jan 6, 12:00 PM PST | River Flood Warning | SGX | San Diego | 29 hr |
| Jan 6, 12:10 PM PST | Flash Flood Warning | SGX | Orange | 5 hr |
| Jan 6, 12:35 PM PST | Special Marine Warning | SGX | 55 min | |
| Jan 6, 12:40 PM PST | Areal Flood Warning | SGX | Orange, Riverside, San Bernardino | 6 hr |
| Jan 6, 12:45 PM PST | Special Marine Warning | SGX | 45 min | |
| Jan 6, 12:46 PM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Bernardino | 44 min |
| Jan 6, 1:04 PM PST | Severe Thunderstorm Warning | SGX | Orange, Riverside, San Diego | 56 min |
| Jan 6, 1:23 PM PST | Special Marine Warning | SGX | 37 min | |
| Jan 6, 1:30 PM PST | Special Marine Warning | SGX | 45 min | |
| Jan 6, 1:50 PM PST | Special Marine Warning | SGX | 40 min | |
| Jan 6, 2:09 PM PST | Special Marine Warning | SGX | 96 min | |
| Jan 6, 2:23 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 52 min |
| Jan 6, 2:45 PM PST | Special Marine Warning | SGX | 60 min | |
| Jan 6, 2:54 PM PST | Tornado Warning | SGX | San Diego | 20 min |
| Jan 6, 2:56 PM PST | Tornado Warning | SGX | San Diego | 19 min |
| Jan 6, 3:12 PM PST | Flash Flood Warning | SGX | San Diego | 3 hr |
| Jan 6, 3:19 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 43 min |
| Jan 6, 3:50 PM PST | Special Marine Warning | SGX | 85 min |
Nearby
Flash Flood Warnings in California, 2016Every flash flood warning in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.