Alert archive / Oregon / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 5, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Aug 6, 2003, 4:59 PM PDT for Jackson County, Oregon. It was in force for 61 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, 4:59 PM PDT (23:59 UTC)
- Expired
- Aug 6, 2003, 6:00 PM PDT
- In force
- 61 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 12:00Z, 12.0 hours before the alert went out and 14 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
- -52 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
078 WUUS56 KMFR 062359 SVRMFR ORC029-070100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 458 PM PDT WED AUG 6 2003 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL JACKSON COUNTY IN SOUTHWEST OREGON THIS INCLUDES THE CITY OF MEDFORD * UNTIL 600 PM PDT * AT 454 PM PDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM OVER MEDFORD...MOVING NORTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER CENTRAL POINT AT 505 PM PDT 4 MILES WEST OF WHITE CITY AT 515 PM PDT 6 MILES WEST OF EAGLE POINT AT 520 PM PDT 6 MILES WEST OF SHADY COVE AT 555 PM PDT HAIL UP TO 1 INCH IN DIAMETER HAS BEEN REPORTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. 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 4225 12299 4227 12275 4277 12278 4273 12314 $$ 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, 3 hours 14 minutes earlier.
Area forecast discussion, Aug 6, 1:45 PM PDT, 3 hours 14 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, 10 hours 29 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
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.