Alert archive / Oregon / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 13, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Jul 2, 1998, 4:06 PM PDT for Klamath County, Oregon. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 2, 1998, 4:06 PM PDT (23:06 UTC)
- Expired
- Jul 2, 1998, 4:35 PM PDT
- In force
- 29 min
- Issued by
- NWS Medford, OR
- Area
- Whole counties
County Klamath County, OR
The radar
The Medford radar (KMAX), 110 km from the middle of the area, began a volume at 23:08 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, 11.1 hours before the alert went out and 101 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
141 WUUS1 KMFR 022307 RRA SVRMFR ORC035-022335- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 406 PM PDT THU JUL 2 1998 THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL KLAMATH COUNTY IN SOUTH CENTRAL OREGON * UNTIL 435 PM PDT * AT 400 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MI NORTHEAST OF CHILOQUIN NEAR APPLEGATE BUTTE ON THE WINEMA NATIONAL FOREST. * THE SEVERE THUNDERSTORM IS NEARLY STATIONARY. THIS STORM IS LIKELY PRODUCING VERY HEAVY RAIN ALONG WITH LARGE HAIL. THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS. HOLTZ
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 Jul 2, 2:30 PM PDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jul 2, 2:30 PM PDT, 1 hour 36 minutes before
SOUTHWEST OREGON/NORTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEDFORD OR 230 PM PDT THU JUL 02 1998 FA TO REMAIN IN MEAN TROF POSITION NEXT FEW DAYS. FIRST VORT LOBE MOVED THRU REGION EARLY AND SET OFF SOME TSTORMS LAKE CTY. THIS HAS MOVED NEWD. NEXT LOBE MOVING INTO NWRN CA STARTING TO GENERATE STORMS SISKIYOU CTY EWD NOW. WATER VAPOR SHOWS MORE SMALL VORTS MOVING THRU TROF. FOR THE MOST PART..DONT SEE MUCH CHANGE NEXT FEW DAYS. ONSHORE FLO WILL GIVE LOW CLOUDS WEST OF CASCDS WITH AFTERNOON CLEARING AS SFC RIDGE STARTS TO BUILD INTO NRN ORE. CASCADES AND SISKIYOUS EWD SHUD SEE SCT AFTERNOON AND EVE CONVECTION..THO MODELS FCST WEAKENING INSTABILITY FRI/SAT. TEMPS TO REMAIN AT OR BELOW NORMAL. RC KMFR...FLASH FLOOD WATCH ORZ015 THRU 10PM .KMAX...VCP 21 ...SEE PDXCCFPDX FOR CODED CITIES FORECAST MFR BB 060/078 059/081 059 061111 LMT BB 048/077 048/078 048 064333 RBG EE 058/069 057/072 057 061111 4BK EE 053/066 053/068 053 061111 OTH EE 054/063 054/063 054 061111 YKA BB 051/083 050/084 050 064333 MHS BB 052/080 052/082 052 064333 S11 BB 048/080 046/082 047 063333
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 3:29 PM PDT | Severe Thunderstorm Warning | MFR | Lake | 31 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 1998Every severe thunderstorm warning in 1998
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.