Alert archive / Oregon / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 22, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Jul 22, 2002, 6:08 PM MDT for Malheur County, Oregon. It was in force for 37 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 22, 2002, 6:08 PM MDT (00:08 UTC)
- Expired
- Jul 22, 2002, 6:45 PM MDT
- In force
- 37 min
- Issued by
- NWS Boise, ID
- Area
- Counties, with a storm outline in the text
County Malheur County, OR
The radar
The Boise radar (KCBX), 117 km from the middle of the area, began a volume at 00:10 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
Boise Airport, ID (KBOI), launched 00:00Z, 0.1 hours before the alert went out and 122 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
- 383 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 3204 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 1:50 PM MDT, 4 hours 18 minutes earlier.
Area forecast discussion, Jul 22, 1:50 PM MDT, 4 hours 18 minutes before
SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE IDAHO 150 PM MDT MON JUL 22 2002 THETA E RIDGE ARCING FROM AROUND SLC TOWARDS TWF THEN BNO THIS AFTERNOON AND EVENING FOR MOIST (ABOVE 600 MBS) UNSTABLE AIRMASS. MOST MOIST, 1-INCH PRECIP-WATER, PLUME LINGERS IN WRN UTAH INTO S-CENTRAL IDAHO THRU THIS EVENING. FCST SOUNDINGS SHOW DRY LOW LAYERS FOR INVERTED-VEE PROFILE, FAVORING GUSTY WINDS, ALTHOUGH SOME MOISTENING IS FORECAST BY THE MESOETA BY MIDNIGHT WITH THUNDERSTORMS ACROSS THE IDAHO MOUNTAINS. UPPER LOW OFF CALIF IS SENDING WEAKENING BUT ACTIVE SHORTWAVES INTO THE CWFA MOST RECENTLY ABOUT 25KTS FROM THE SSW TO NNE. MODELS SEEM SLOW AND NOT WEAKENING ENOUGH IN TAKING THE 1ST WAVE THRU CENTRAL ID EARLY THIS AFTERNOON...AND SEEM UNDERDONE ON IDENTIFYING THE 2ND WAVE IN WRN NV APPROACHING SRN ZONES FOR TS THIS AFTERNOON. EXPECT ISOLD, APCHG SCT, TS IN 1 PW ZONE IN SOUTH CENTRAL ID AND APCHG SCT IN HARNEY/MALHEUR COUNTIES, CLOSEST TO WRN NV SHORTWAVE MOVING N INTO SE OREGON, EARLY THIS EVENING. THIRD SHORTWAVE SEEN IN WATER VAPOR 35N 125W IS ALSO IN THE AREA OF 60+ KT SPEED MAX ON THE EAST SIDE OF THE UPPER LOW AND IS EXPECTED INTO SE OREGON IN THE WEE HOURS...SO WILL HAVE NOCTURNAL TS A POSSIBILITY WITH UPPER SUPPORT TONIGHT. UPPER LOW OPENS UP TUESDAY NIGHT AND WED AS UPPER SPEED MAX SHIFTS ACROSS SRN ID FOR WED. NOCTURNAL TS AGAIN POSSIBLE. UPPER TROF THEN LINGERS OVER THE NW THURSDAY THEN SLOWLY MOVES INTO S-CENTRAL ID FRIDAY. SOME MORE STABLE AIR IS FCST TO MOVE IN FROM THE S WED AND THURS. PLAN ON GOING WITH 12Z AVN FOR BETTER POSSIBILITY FOR TS NORTH ON WEDNESDAY THROUGH THURSDAY, THEN CLEARING IN OREGON SIDE FRIDAY AND IDAHO PORTION FRIDAY EVENING. FOR THE EXTENDED, SLIGHTLY COOLER NW TO W FLOW ALOFT MOVES IN THIS WEEKEND AS THERMALLY INDUCED PRES TROF SHIFTS E FRIDAY EVENING AS IN CURRENT EXTENDED. 00Z GLOBAL RUN SHOWS UPPER RIDGE AND THERMAL PRES TROF REBUILDING MONDAY AND WILL TREND WARMER FOR DAY 7/MONDAY. .BOI...FIRE WEATHER WATCH REST OF THIS AFTERNOON AND TONIGHT FOR MUCH OF SE OREGON AND S OF THE SNAKE RIVER IN SW ID...ZONES 636B, 637 AND SOUTH OF THE SNAKE RIVER IN 408. SEE RFW/FWF BOISE FIRE WEATHER PRODUCTS FOR DETAILS. MILLS
The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 9:23 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Boise | 52 min |
| Jul 22, 10:01 PM MDT | Flash Flood Warning | BOI | Ada, Boise | 89 min |
| Jul 22, 10:11 PM MDT | Flash Flood Warning | BOI | Ada, Boise | 79 min |
| Jul 22, 6:12 PM MDT | Severe Thunderstorm Warning | BOI | Malheur | 48 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2002Every severe thunderstorm warning in 2002
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.