Alert archive / California / Flash Flood Warnings in 1998
Flash Flood Warning 5, NWS Medford, OR
NWS Medford, OR issued this flash flood warning at Jun 12, 1998, 3:01 PM PDT for Siskiyou County, California. It was in force for 84 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
- Jun 12, 1998, 3:01 PM PDT (22:01 UTC)
- Expired
- Jun 12, 1998, 4:25 PM PDT
- In force
- 84 min
- Issued by
- NWS Medford, OR
- Area
- Whole counties
County Siskiyou County, CA
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.0 hours before the alert went out and 89 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
- 789 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 58 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 KMFR 122201 FFWMFR CAC093-122335- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MEDFORD OR 301 PM PDT FRI JUN 12 1998 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN SISKIYOU COUNTY IN NORTH CENTRAL CALIFORNIA * UNTIL 425 PM PDT * AT 255 PM PDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN ACROSS SOUTHEAST SISKIYOU COUNTY... MOV|ING SLOWLY SOUTHWEST. FLASH FLOODING IS LIKELY OCCURING AT THIS TIME JUST NORTHEAST OF PONDOSA. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! GETTMAN
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.
NWS Medford, OR wrote its last area forecast discussion before this flash flood warning went out at Jun 12, 2:30 PM PDT, 31 minutes earlier.
Area forecast discussion, Jun 12, 2:30 PM PDT, 31 minutes before
SOUTHWEST OREGON/NORTHEAST CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
230 PM PDT FRI JUN 12 1998
THUNDERSTORMS ARE DOING A NUMBER ON SOUTHERN LAKE COUNTY AND MODOC
COUNTY. FLASH FLOOD WARNING HAS BEEN ISSUED. DEWPOINTS ARE RUNNING IN
THE LOWER 50S THROUGHOUT THAT AREA. DEFORMATION ZONE CAUSING ALL THIS
EXCITEMENT WILL MOVE SOUTH AND EAST OVERNIGHT. EXPECTING A MUCH
QUIETER SATURDAY. RIDGE OVER EASTERN PACIFIC BROADENS OVER THE
WEEKEND TO COVER THE WEST COAST. THIS WILL STABILIZE THE AIRMASS AND
ALLOW FOR ABOVE NORMAL TEMPERATURES AND DRY WEATHER.
XTDD...AN AREA OF LOW PRESSURE RIDES OVER THE TOP OF THE RIDGE MONDAY
AND APPROACHES SOUTHERN OREGON OREGON ON TUESDAY. DRY MONDAY. CHANCE
FOR RAIN TUESDAY. BETTER CHANCE WEDNESDAY. SARGEANT
.KMFR...FLASH FLOOD WARNING SOUTHERN LAKE COUNTY OR AND MODOC COUNTY
CA
FLASH FLOOD WATCH ORZ015 CAZ012
.KMAX...VCP 11
...SEE PDXCCFPDX FOR CODED CITIES FORECAST
MFR UU 049/084 051/085 052 070000
LMT UU 046/079 046/080 047 072110
RBG BU 053/081 052/083 053 070000
4BK UB 052/069 052/066 053 070000
OTH BB 052/063 053/063 053 070000
YKA UU 047/084 048/084 049 072110
MHS UU 049/079 050/080 051 073110
S11 UU 047/080 045/081 046 078220The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:11 PM PDT | Flash Flood Warning | MFR | Modoc | 2 hr |
| Jun 12, 1:23 PM PDT | Flash Flood Warning | MFR | Modoc | 3 hr |
| Jun 12, 4:13 PM PDT | Flash Flood Warning | MFR | Modoc, Siskiyou | 3 hr |
Nearby
Flash Flood Warnings in California, 1998Every flash flood warning in 1998
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.