Alert archive / Oregon / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 6, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Aug 6, 2003, 6:02 PM PDT for Jackson County, Oregon. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2003, 6:02 PM PDT (01:02 UTC)
- Expired
- Aug 6, 2003, 6:45 PM PDT
- In force
- 43 min
- Issued by
- NWS Medford, OR
- Area
- Counties, with a storm outline in the text
County Jackson County, OR
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 1.0 hours before the alert went out and 36 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
- 203 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1974 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
050 WUUS56 KMFR 070102 SVRMFR ORC029-070145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 600 PM PDT WED AUG 6 2003 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL JACKSON COUNTY IN SOUTHWEST OREGON * UNTIL 645 PM PDT * AT 555 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES NORTHEAST OF SHADY COVE...OR ABOUT 23 MILES NORTH OF MEDFORD...MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER RURAL NORTHERN JACKSON COUNTY AT 610 PM PDT INCLUDING LOST CREEK RESERVOIR THIS WARNING REPLACES THE PREVIOUS THUNDERSTORM WARNING FOR JACKSON COUNTY BOATERS IN LOST CREEK RESERVOIR SHOULD TAKE IMMEDIATE ACTION WITH THIS STORM. HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MEDFORD. LAT...LON 4260 12288 4257 12263 4293 12253 4276 12286 $$ SVEN
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 6, 1:45 PM PDT, 4 hours 17 minutes earlier.
Area forecast discussion, Aug 6, 1:45 PM PDT, 4 hours 17 minutes before
SOUTHWEST OREGON AND NORTHERN CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEDFORD, OR 145 PM PDT WED AUG 6 2003 AS EXPECTED SATELLITE PICTURE INDICATES ONLY INNOCUOUS CUMULUS CLOUDS HAVE DEVELOPED TO THIS POINT. THE AIR MASS OVER MUCH OF OUR INLAND REGION WILL DE-STABILIZE LATE THIS AFTERNOON AND EVENING AS A SHORTWAVE NEAR CAPE MENDOCINO MOVES EAST-NORTHEAST INTO SISKIYOU COUNTY AND THEN CONTINUES ACROSS KLAMATH AND NORTHERN LAKE COUNTIES THIS EVENING. CHANCE OF THUNDERSTORMS WILL BE HIGHEST OVER THE CASCADES WITH ETA INDICATING BOUNDARY LAYER CAPE VALUES OF 200-1000 J/KG AND LI OF -1 TO -3. THE AIR MASS WILL STABILIZE BEHIND THE TROUGH WITH A PERSISTENT PATTERN SETTING UP FOR THURSDAY THROUGH MONDAY. A CLOSED LOW WILL REMAIN OFFSHORE FROM NORTHERN OREGON AND WASHINGTON WITH COOL ONSHORE FLOW. A VERY WEAK SHORTWAVE WILL DEEPEN THE MARINE LAYER THURSDAY NIGHT FOR A CHANCE OF MIST/LIGHT SHOWERS AT THE COAST AFTER MIDNIGHT INTO FRIDAY MORNING ALONG WITH LOW CLOUDS SPREADING INTO THE UMPQUA BASIN. SIMILAR SITUATION SUNDAY NIGHT/MONDAY MORNING WITH A STRONGER MARINE PUSH AS THE UPPER LOW MOVES EAST TOWARD THE COAST. THE UPPER LOW IS EXPECTED TO WEAKEN AND MOVE INLAND TUESDAY FOR SLIGHT COOLING AND JUST A SLIGHT CHANCE OF SHOWERS WEST OF CASCADES. THERE IS A VERY SMALL POSSIBILITY OF A SOUTHWARD VARIATION IN THE PROJECTED LOW TRACK...WHICH WOULD WARRANT MENTION OF THUNDERSTORMS EAST OF THE CASCADES ON TUESDAY. DRY AND A LITTLE WARMER WEDNESDAY AS HIGH PRESSURE OVER THE EASTERN PACIFIC BUILDS IN BEHIND THE TROUGH. .MFR...NONE DW
Hazardous weather outlook, Aug 6, 6:30 AM PDT, 11 hours 32 minutes before
ORZ021>031-CAZ080>085-071330- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 630 AM PDT WED AUG 06 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HESS
In the hours before
Local storm report, Aug 6, 5:17 PM PDT, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
517 PM PDT WED AUG 06 2003
TIME(PDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0512 PM ASHLAND OR 1.25 INCH HAIL
08/06/03 JACKSON SPOTTER JA58 REPORTS HAIL
WITH THE LARGEST THE SIXE
OF A GOLF BALL.
0514 PM MEDFORD OR .75 INCH HAIL
08/06/03 JACKSON SPOTTER JA40 NE MEDFORD
REPORTS 3/4 INCH HAIL AND
HEAVY RAIN FROM TSTM.
0515 PM MEDFORD OR .75 INCH HAIL
08/06/03 JACKSON THAI BISTRO REPORTS 3/4
INCH HAIL COVERING THE
GROUND AT STEVENS AND
BIDDLE.
0516 PM MEDFORD OR .75 INCH HAIL
08/06/03 JACKSON SPOTTER JA61 IN NE MEDFORD
REPORTS 3/4 INCH HAIL.Local storm report, Aug 6, 5:31 PM PDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
531 PM PDT WED AUG 06 2003
TIME(PDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0529 PM MEDFORD OR .5 INCH HAIL
08/06/03 JACKSON SPOTTER JA10 REPORTS 1/2
INCH HAIL AND .30 IN RAIN
IN 10 MINUTES.Local storm report, Aug 6, 5:36 PM PDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OREGON
536 PM PDT WED AUG 06 2003
TIME(PDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0534 PM MEDFORD OR
08/06/03 JACKSON DIANE SANDLER REPORTS THE
INTERSECTION OF MCANDREWS
AND BIDDLE FLOODED WITH
THE WATER UP TO THE TOPS
OF CAR TIRES.The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:39 PM PDT | Flash Flood Warning | MFR | Jackson | 3 hr |
| Aug 6, 6:51 PM PDT | Severe Thunderstorm Warning | MFR | Klamath | 39 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2003Every severe thunderstorm warning in 2003
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.