Alert archive / Oregon / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 13, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Jul 30, 2014, 4:41 PM PDT for Douglas County, Jackson County, Oregon. It was in force for 34 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
- Jul 30, 2014, 4:41 PM PDT (23:41 UTC)
- Expired
- Jul 30, 2014, 5:15 PM PDT
- In force
- 34 min
- Issued by
- NWS Medford, OR
- Area
- Storm-based polygon
Counties Douglas County, OR, Jackson County, OR
The radar
The Medford radar (KMAX), 84 km from the middle of the area, began a volume at 23:44 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.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 11.7 hours before the alert went out and 52 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
- 85 J/kg
- Mixed-layer CIN
- -591 J/kg
- Mixed-layer LCL
- 1777 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
406 WUUS56 KMFR 302341 SVRMFR ORC019-029-310015- /O.NEW.KMFR.SV.W.0013.140730T2341Z-140731T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 441 PM PDT WED JUL 30 2014 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL DOUGLAS COUNTY IN SOUTHWEST OREGON... NORTH CENTRAL JACKSON COUNTY IN SOUTHWEST OREGON... * UNTIL 515 PM PDT * AT 436 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES NORTHWEST OF JOSEPH STEWART STATE PARK...OR 29 MILES WEST OF CRATER LAKE...AND MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...NEARLY CONTINUOUS LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4294 12281 4293 12251 4267 12255 4268 12280 TIME...MOT...LOC 2341Z 182DEG 7KT 4277 12267 $$ STOCKTON
1 follow-up statement
244 WWUS56 KMFR 310015 SVSMFR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 515 PM PDT WED JUL 30 2014 ORC019-029-310025- /O.EXP.KMFR.SV.W.0013.000000T0000Z-140731T0015Z/ DOUGLAS OR-JACKSON OR- 515 PM PDT WED JUL 30 2014 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL JACKSON AND SOUTH CENTRAL DOUGLAS COUNTIES HAS EXPIRED... LAT...LON 4294 12281 4293 12251 4267 12255 4268 12280 TIME...MOT...LOC 2341Z 182DEG 7KT 4277 12267 $$ STOCKTON
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 5:59 PM PDT | Special Weather Statement | MFR | Klamath | 46 min |
| Jul 29, 6:07 PM PDT | Severe Thunderstorm Warning | MFR | Klamath | 38 min |
| Jul 29, 6:44 PM PDT | Severe Thunderstorm Warning | MFR | Klamath | 31 min |
| Jul 29, 7:14 PM PDT | Special Weather Statement | MFR | 46 min | |
| Jul 29, 7:56 PM PDT | Special Weather Statement | MFR | 34 min | |
| Jul 30, 3:01 AM PDT | Gale Watch | MFR | 35 hr | |
| Jul 30, 3:01 AM PDT | Hazardous Seas Watch | MFR | 35 hr | |
| Jul 30, 3:01 PM PDT | Special Weather Statement | MFR | Klamath | 44 min |
| Jul 30, 3:07 PM PDT | Red Flag Warning | MFR | Douglas, Harney, Jackson, Josephine, Klamath, Lake and 1 more | 32 hr |
| Jul 30, 3:43 PM PDT | Special Weather Statement | MFR | Klamath | 47 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2014Every severe thunderstorm warning in 2014
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; radar from the NEXRAD Level II archive.