Flash Flood Warning 1, NWS Medford, OR

Issued

Jul 24, 2004, 7:16 PM PDT (02:16 UTC)

Expired

Jul 24, 2004, 7:45 PM PDT

In force

29 min

Issued by

NWS Medford, OR

Area

Counties, with a storm outline in the text

County Siskiyou County, CA

The Medford radar (KMAX), 21 km from the middle of the area, began a volume at 02:18 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WGUS56 KMFR 250217
FFWMFR
CAC093-250245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEDFORD OR
716 PM PDT SAT JUL 24 2004

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BEAVER CREEK IN NORTH CENTRAL SISKIYOU COUNTY IN NORTHERN
  CALIFORNIA

* UNTIL 745 PM PDT

* AT 708 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS OVER EXTREME NORTH CENTRAL
  SISKIYOU COUNTY...OR ABOUT 18 MILES SOUTHWEST OF ASHLAND...MOVING
  VERY SLOWLY.

* THE STORM PRODUCING VERY HEAVY RAIN WILL REMAIN OVER
  MAINLY RURAL AREAS OF THE INDICATED COUNTY.

FLOOD WATERS ARE MOVING DOWN BEAVER CREEK TOWARD THE KLAMATH RIVER.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MEDFORD.

LAT...LON 4190 12294 4187 12281 4200 12276 4200 12289

$$

STOCKTON

NWS Medford, OR wrote its last area forecast discussion before this flash flood warning went out at Jul 24, 3:00 PM PDT, 4 hours 16 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
300 PM PDT SAT JUL 24 2004

.DISCUSSION...STEEP LAPSE RATES EVIDENT ACROSS SOUTHERN AND EASTERN PORTIONS OF
OUR AREA THIS AFTERNOON. MOISTURE IS LIMITED THOUGH SO THUNDERSTORM ACTIVITY
HAS BEEN ISOLATED THUS FAR AND LOCATED ACROSS THE VERY SOUTHEAST PORTION OF OUR
ZONES.  HEATING IS JUST NOW BUILDING CUMULUS ALONG THE CASCADES EASTWARD AND
OVER SISKIYOU COUNTY. WITH 3 MORE HOURS OF HEATING TO GO EXPECT THE
THUNDERSTORM ACTIVITY TO BECOME MORE WIDESPREAD AND ENCOMPASS PARTS OF
KLAMATH...LAKE...SISKIYOU AND MODOC COUNTIES. ACTIVITY WILL END SHORTLY AFTER
DARK. UPPER LEVEL RIDGE WILL MOVE FURTHER EAST SUNDAY WITH THE SURFACE THERMAL
TROUGH MOVING EAST OF THE CASCADES.  THIS WILL INCREASE THE LOW LEVEL ONSHORE
FLOW WEST OF THE CASCADES RESULTING IN COOLER TEMPERATURES AND MORE STABLE
CONDITIONS. THUNDERSTORM ACTIVITY SHOULD BREAK OUT AGAIN SUNDAY AFTERNOON BUT
BE FURTHER TO THE EAST...AFFECTING THE EASTSIDE ZONES AND MODOC COUNTY AND JUST
THE EASTERN PORTION OF SISKIYOU COUNTY.  A WEAK TROUGH PASSAGE SUNDAY NIGHT
SHOULD MARK AN END TO THE THUNDERSTORM ACTIVITY.  THE FLOW ALOFT WILL TURN
LIGHT NORTHWEST RETURNING OUR AREA TO NEAR TO SLIGHTLY ABOVE NORMAL
TEMPERATURES THROUGH MOST OF NEXT WEEK.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...SMALL CRAFT ADVISORY CAPE BLANCO TO CALIFORNIA BORDER 20-60 NM.
CA...SMALL CRAFT ADVISORY CALIFORNIA BORDER TO PT ST GEORGE 20-60 NM.

&&
GETTMAN

Flash Flood Warnings in California, 2004Every flash flood warning in 2004

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.