Alert archive / Idaho / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 19, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Jul 22, 2008, 3:13 PM MDT for Jerome County, Twin Falls County, Idaho. It was in force for 45 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, 2008, 3:13 PM MDT (21:13 UTC)
- Expired
- Jul 22, 2008, 3:58 PM MDT
- In force
- 45 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
Counties Jerome County, ID, Twin Falls County, ID
The radar
The Pocatello radar (KSFX), 159 km from the middle of the area, began a volume at 21:16 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 22, 1:00 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 9.2 hours before the alert went out and 183 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
- 209 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1735 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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, 3:00 PM MDT, 13 minutes earlier.
Area forecast discussion, Jul 22, 3:00 PM MDT, 13 minutes before
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</html>Hazardous weather outlook, Jul 22, 5:58 AM MDT, 9 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE ID 558 AM MDT TUE JUL 22 2008 IDZ011-013-ORZ062-231200- WEST CENTRAL MOUNTAINS-BOISE MOUNTAINS-BAKER COUNTY- 558 AM MDT TUE JUL 22 2008 /458 AM PDT TUE JUL 22 2008/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL IDAHO AND NORTHEAST OREGON. .DAY ONE...TODAY AND TONIGHT A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL THIS AFTERNOON. NUMEROUS SHOWERS AND THUNDERSTORMS MAY PRODUCE PERIODS OF HEAVY RAIN. AREAS OF RECENT BURNS ARE ESPECIALLY PRONE TO FLASH FLOODING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD REPORT ANY SIGNIFICANT WEATHER THROUGH ESTABLISHED PROCEDURES. IDZ012-014>016-028>030-ORZ061-063-064-231200- LOWER TREASURE VALLEY ID-UPPER TREASURE VALLEY- SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY-CAMAS PRAIRIE- OWYHEE MOUNTAINS-SOUTHERN TWIN FALLS COUNTY-HARNEY COUNTY- MALHEUR COUNTY-LOWER TREASURE VALLEY OR- 558 AM MDT TUE JUL 22 2008 /458 AM PDT TUE JUL 22 2008/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO...SOUTHWEST IDAHO AND SOUTHEAST OREGON. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. SCATTERED SHOWERS AND THUNDERSTORMS COULD PRODUCE AREAS OF BRIEF HEAVY RAIN AND GUSTY WINDS THROUGH THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED AT THIS TIME.
In the hours before
Local storm report, Jul 22, 1:29 PM MDT, 1 hour 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
129 PM MDT TUE JUL 22 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1117 AM TSTM WND GST 2 WNW CENTERVILLE 43.93N 115.92W
07/22/2008 M90 MPH BOISE ID MESONET
TOWN CREEK RAWS REPORTED GUST TO 90 MPH
&&
TWBLocal storm report, Jul 22, 1:35 PM MDT, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOISE ID
135 PM MDT TUE JUL 22 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1150 AM HEAVY RAIN 3 E CASCADE 44.52N 115.98W
07/22/2008 M0.94 INCH VALLEY ID MESONET
0.82 INCHES OF RAIN IN 15 MINUTES. TOTAL OF 0.94 OVER 1.5
HOURS
&&
TWBLocal storm report, Jul 22, 2:07 PM MDT, 1 hour 6 minutes before
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</html>Local storm report, Jul 22, 2:13 PM MDT, 1 hour before
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</html>Local storm report, Jul 22, 2:16 PM MDT, 57 minutes before
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</html>Local storm report, Jul 22, 3:13 PM MDT, 0 minutes before
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</html>The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 10:35 AM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon | 25 min |
| Jul 22, 11:43 AM MDT | Severe Thunderstorm Warning | BOI | Boise | 47 min |
| Jul 22, 11:52 AM MDT | Flash Flood Warning | BOI | Boise | 83 min |
| Jul 22, 12:05 PM MDT | Flash Flood Warning | BOI | Valley | 115 min |
| Jul 22, 1:41 PM MDT | Severe Thunderstorm Warning | BOI | Twin Falls | 64 min |
| Jul 22, 1:53 PM MDT | Tornado Warning | BOI | Twin Falls | 52 min |
| Jul 22, 2:06 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee, Twin Falls | 39 min |
| Jul 22, 2:30 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 45 min |
| Jul 22, 2:33 PM MDT | Severe Thunderstorm Warning | BOI | Jerome | 42 min |
| Jul 22, 2:42 PM MDT | Severe Thunderstorm Warning | BOI | Twin Falls | 59 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2008Every severe thunderstorm warning in 2008
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.