Alert archive / Idaho / Red Flag Warnings in 2010

Red Flag Warning 10, NWS Pocatello, ID

August 21, 20109 counties in Idaho

NWS Pocatello, ID issued this red flag warning at Aug 21, 2010, 3:25 AM MDT for 9 counties in Idaho. It took effect at Aug 21, 2010, 12:00 PM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 21, 2010, 3:25 AM MDT (09:25 UTC)
In effect from
Aug 21, 2010, 12:00 PM MDT
Expired
Aug 21, 2010, 8:36 PM MDT
In force
9 hr
Issued by
NWS Pocatello, ID

Counties Bingham County, ID, Bonneville County, ID, Butte County, ID, Clark County, ID, Fremont County, ID, Jefferson County, ID, Madison County, ID, Power County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 77 km from the middle of the area, began a volume at 09:28 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.

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this red flag warning went out at Aug 20, 8:22 PM MDT, 7 hours 3 minutes earlier.

Area forecast discussion, Aug 20, 8:22 PM MDT, 7 hours 3 minutes before
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Hazardous weather outlook, Aug 20, 9:37 PM MDT, 5 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE POCATELLO ID
937 PM MDT FRI AUG 20 2010

IDZ017>025-031-032-220345-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
937 PM MDT FRI AUG 20 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TONIGHT

NO SIGNIFICANT WEATHER IS EXPECTED OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A STORM SYSTEM WILL SLOWLY ADVANCE ACROSS THE AREA THROUGH
MONDAY. ISOLATED THUNDERSTORMS WILL AFFECT MAINLY THE MOUNTAINOUS
AREAS AND ALSO THE NORTHERN PART OF THE ARCO DESERT. LITTLE
RAINFALL AND GUSTY WINDS ARE EXPECTED WITH THIS ACTIVITY. BREEZY
CONDITIONS WILL ALSO DEVELOP BY AFTERNOON AND LAST INTO THE
EVENING OVER MUCH OF EASTERN IDAHO. SOUTH TO SOUTHWEST WINDS OF 15
TO 30 MPH SUSTAINED WITH HIGHER GUSTS ARE FORECAST...WITH LIGHTER
WINDS OVER THE MAGIC VALLEY AND SOUTHERN PARTS OF THE CENTRAL
MOUNTAINS. A LAKE WIND ADVISORY HAS BEEN ISSUED FOR AMERICAN FALLS
RESERVOIR BECAUSE OF THE WINDS AND IMPACTS TO BOATERS ON THE LAKE.
THESE STRONG WINDS...COMBINED WITH LOW AFTERNOON HUMIDITY VALUES
COULD LEAD TO DANGEROUS FIRE WEATHER CONDITIONS ACROSS THE MIDDLE
AND UPPER PORTIONS OF THE SNAKE PLAIN AS WELL AS THE SOUTHERN
HIGHLANDS. A FIRE WEATHER WATCH HAS BEEN ISSUED FOR FIRE WEATHER
ZONES 409...410 AND 412. FOR MORE INFORMATION ON THE FIRE WEATHER
WATCH AND LAKE WIND ADVISORY...PLEASE GO TO WEATHER.GOV/POCATELLO.

SHOWERS AND THUNDERSTORMS WILL CONTINUE ON SUNDAY WITH THE HIGHEST
CHANCES IN THE MOUNTAINS. BREEZY CONDITIONS ARE FORECAST ON
SUNDAY...ALTHOUGH NOT QUITE AS STRONG AS SATURDAY.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.

Nearby

Red Flag Warnings in Idaho, 2010Every red flag warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.