Alert archive / Oregon / Flash Flood Warnings in 1998

Flash Flood Warning 7, NWS Medford, OR

June 12, 1998Lake County, Oregon

NWS Medford, OR issued this flash flood warning at Jun 12, 1998, 4:13 PM PDT for Lake County, Oregon. It was in force for 3 hr. 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, 4:13 PM PDT (23:13 UTC)
Expired
Jun 12, 1998, 7:15 PM PDT
In force
3 hr
Issued by
NWS Medford, OR
Area
Whole counties

County Lake County, OR

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 11.2 hours before the alert went out and 203 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.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 1998-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 1998-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMFR 122316
FFWMFR
CAC049-093-ORC035-037-130215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEDFORD OR
413 PM PDT FRI JUN 12 1998

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN KLAMATH COUNTY IN SOUTH CENTRAL OREGON
  LAKE COUNTY IN SOUTH CENTRAL OREGON
  THE EASTERN THIRD OF SISKIYOU COUNTY IN NORTH CENTRAL CALIFORNIA
  MODOC COUNTY IN NORTHEASTERN CALIFORNIA

* UNTIL 715 PM PDT

* AT 410 PM PDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN ACROSS EASTERN KLAMATH
  COUNTY...PORTIONS OF LAKE COUNTY...THE EASTERN THIRD OF SISKIYOU
  COUNTY AND SCATTERED PORTIONS OF MODOC COUNTY. R THESE STORMS ARE
  MOVING SLOWLY SOUTHWEST.

RESIDENTS SHOULD USE CAUTION WHILE TRAVELING THIS EVENING.

DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN
AUTOMOBILES.

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, 1 hour 43 minutes earlier.

Area forecast discussion, Jun 12, 2:30 PM PDT, 1 hour 43 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 078220

In the hours before

Local storm report, Jun 12, 3:14 PM PDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
314 PM PDT FRI JUN 12 1998

TIME(PDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0110 PM    LAKEVIEW                  OR   FLOODING
06/12/98   LAKE                           LAKEVIEW 911 REPORTS
                                          FLOODING ALONG DEADMAN
                                          CREEK DUE TO BRUSH
                                          COLLECTING NEAR A BRIDGE

0220 PM    LAKEVIEW                  OR
06/12/98   LAKE                           LAKEVIEW 911 REPORTS 2
                                          INCHES OF SLUSH ON THE
                                          GROUND 13 MILES WEST OF
                                          LAKEVIEW ALONG HIGHWAY 140

0309 PM                              CA   FLOODING
06/12/98   MODOC                          MODOC COUNTY OES REPORTS
                                          SMALL STREAM FLOODING AND
                                          WATER OVER A NUMBER OF
                                          ROADS. ALSO A HOUSE BEING
                                          SAND-BAGGED FOR HIGH WATER

0310 PM    ADEL                      OR
06/12/98   LAKE                           LAKEVIEW 911 REPORTS
                                          COUNTY ROAD 310 CLOSED
                                          BETWEEN ADEL AND PLUSH.
                                          HIGHWY 140 EAST AT
                                          MILEPOSTS 26 AND 28 IS
                                          CLOSED.  ROADS CLOSED DUE
                                          TO MUDSLIDES.
Local storm report, Jun 12, 3:14 PM PDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
314 PM PDT FRI JUN 12 1998

TIME(PDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0110 PM    LAKEVIEW                  OR   FLOODING
06/12/98   LAKE                           LAKEVIEW 911 REPORTS
                                          FLOODING ALONG DEADMAN
                                          CREEK DUE TO BRUSH
                                          COLLECTING NEAR A BRIDGE

0220 PM    LAKEVIEW                  OR
06/12/98   LAKE                           LAKEVIEW 911 REPORTS 2
                                          INCHES OF SLUSH ON THE
                                          GROUND 13 MILES WEST OF
                                          LAKEVIEW ALONG HIGHWAY 140

0309 PM                              CA   FLOODING
06/12/98   MODOC                          MODOC COUNTY OES REPORTS
                                          SMALL STREAM FLOODING AND
                                          WATER OVER A NUMBER OF
                                          ROADS. ALSO A HOUSE BEING
                                          SAND-BAGGED FOR HIGH WATER

0310 PM    ADEL                      OR
06/12/98   LAKE                           LAKEVIEW 911 REPORTS
                                          COUNTY ROAD 310 CLOSED
                                          BETWEEN ADEL AND PLUSH.
                                          HIGHWY 140 EAST AT
                                          MILEPOSTS 26 AND 28 IS
                                          CLOSED.  ROADS CLOSED DUE
                                          TO MUDSLIDES.
Local storm report, Jun 12, 3:17 PM PDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
317 PM PDT FRI JUN 12 1998

TIME(PDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0315 PM                              CA   FLOODING
06/12/98   MODOC                          MODOC COUNTY OES REPORTS
                                          SMALL STREAM FLOODING AND
                                          WATER OVER MANY ROADS.

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 1:23 PM PDTFlash Flood WarningMFRLake3 hr
Jun 12, 4:13 PM PDTFlash Flood WarningMFRKlamath3 hr

Nearby

Flash Flood Warnings in Oregon, 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.