Alert archive / California / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 4, NWS Medford, OR
NWS Medford, OR issued this severe thunderstorm warning at Jul 16, 1997, 7:32 PM PDT for Siskiyou County, California; Klamath County, Oregon. It was in force for 48 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 16, 1997, 7:32 PM PDT (02:32 UTC)
- Expired
- Jul 16, 1997, 8:20 PM PDT
- In force
- 48 min
- Issued by
- NWS Medford, OR
- Area
- Whole counties
Counties Siskiyou County, CA, Klamath County, OR
The radar
The Medford radar (KMAX), 52 km from the middle of the area, began a volume at 02:33 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, 2.5 hours before the alert went out and 63 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
- 618 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 2055 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMFR 170243 RRA SVRMFR ORC035-CAC093-170320- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MEDFORD OR 732 PM PDT WED JUL 16 1997 THE NATIONAL WEATHER SERVICE IN MEDFORD OR HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 820 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL CALIFORNIA ...NORTH CENTRAL SISKIYOU COUNTY IN SOUTH CENTRAL OREGON ...SOUTHCENTRAL KLAMATH COUNTY RADAR INDICATES A SEVERE THUNDERSTORM WAS LOCATED 5 MILES WEST OF MACDOEL. THIS STORM IS MOVING TO THE NORTHEAST AT 20 MPH AND WILL BE IN DORRIS BY 800 PM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 57 MPH ...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AFND VERY HEAVY RAIN. ORR
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 16, 9:30 AM PDT, 10 hours 2 minutes earlier.
Area forecast discussion, Jul 16, 9:30 AM PDT, 10 hours 2 minutes before
SOUTHWEST OREGON/NORTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEDFORD OR 830 AM PST WED JUL 16 1997 LAN PROBLEMS HAVE SLOWED US DOWN. BRIEF LOOK AT NEW MDLS AND CURRNT FCSTS SHOW NO NEED FOR BIG CHANGES. LI VALUES ARE -2 TO -4 CASCDS EWD SO MENTN OF TSRA THERE IS REASNBL. CRAWFORD .MFR...NONE .KMAX...VCP 32...OPERATING. ...SEE PDXCCFPDX FOR CODED CITIES FORECAST MFR AB 090/060 082/054 081 09111- LMT AB 085/054 076/046 075 09232- RBG AE 084/060 075/053 074 09-121 4BK BE 066/056 068/053 069 09-12- OTH BE 067/057 069/054 070 091231 YKA AB 089/054 082/048 081 09111- MHS AB 083/053 077/049 076 09111- S11 AB 087/050 079/044 077 09221-
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 8:30 PM PDT | Severe Thunderstorm Warning | MFR | Klamath | 45 min |
| Jul 16, 9:23 PM PDT | Severe Thunderstorm Warning | MFR | Klamath | 52 min |
Nearby
Severe Thunderstorm Warnings in California, 1997Severe Thunderstorm Warnings in Oregon, 1997Every severe thunderstorm warning in 1997
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.