Alert archive / Oregon / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 21, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Aug 9, 2013, 5:22 PM PDT for Douglas County, Oregon. It was in force for 23 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 9, 2013, 5:22 PM PDT (00:22 UTC)
- Expired
- Aug 9, 2013, 5:45 PM PDT
- In force
- 23 min
- Issued by
- NWS Medford, OR
- Area
- Storm-based polygon
County Douglas County, OR
The radar
The Medford radar (KMAX), 105 km from the middle of the area, began a volume at 00:26 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 00:00Z, 0.4 hours before the alert went out and 77 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
- 452 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 2186 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
740 WUUS56 KMFR 100022 SVRMFR ORC019-100045- /O.NEW.KMFR.SV.W.0021.130810T0022Z-130810T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 522 PM PDT FRI AUG 9 2013 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL DOUGLAS COUNTY IN SOUTHWEST OREGON... * UNTIL 545 PM PDT * AT 516 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED OVER SOUTH CENTRAL DOUGLAS COUNTY...OR 25 MILES SOUTH OF ROSEBURG...AND MOVING SOUTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL IMPACT THE DOUGLAS WILDFIRE COMPLEX NEAR GLENDALE. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND LIGHTNING. PEOPLE OUTSIDE SHOULD SEEK SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 4272 12343 4278 12372 4298 12355 4293 12340 TIME...MOT...LOC 0021Z 019DEG 11KT 4286 12352 $$ MAS
1 follow-up statement
975 WWUS56 KMFR 100039 SVSMFR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 539 PM PDT FRI AUG 9 2013 ORC019-100049- /O.EXP.KMFR.SV.W.0021.000000T0000Z-130810T0045Z/ DOUGLAS OR- 539 PM PDT FRI AUG 9 2013 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL DOUGLAS COUNTY WILL EXPIRE AT 545 PM PDT... LAT...LON 4272 12343 4278 12372 4298 12355 4293 12340 TIME...MOT...LOC 0039Z 019DEG 11KT 4281 12354 $$ MAS
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:05 PM PDT | Special Weather Statement | MFR | Douglas | 40 min |
| Aug 9, 6:40 PM PDT | Special Weather Statement | MFR | Josephine | 50 min |
| Aug 9, 10:51 PM PDT | Severe Thunderstorm Warning | MFR | Douglas, Jackson | 24 min |
| Aug 10, 5:03 AM PDT | Red Flag Warning | MFR | Douglas, Harney, Jackson, Josephine, Klamath, Lake and 1 more | 15 hr |
| Aug 10, 2:50 PM PDT | Flash Flood Warning | MFR | Douglas | 115 min |
| Aug 10, 3:07 PM PDT | Special Weather Statement | MFR | Josephine | 38 min |
| Aug 10, 3:09 PM PDT | Special Weather Statement | MFR | 51 min | |
| Aug 10, 3:41 PM PDT | Special Weather Statement | MFR | Douglas | 34 min |
| Aug 10, 3:52 PM PDT | Severe Thunderstorm Warning | MFR | Douglas | 23 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2013Every severe thunderstorm warning in 2013
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.