Alert archive / Idaho / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 5, NWS Spokane, WA

June 14, 1986Latah County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jun 14, 1986, 3:53 PM PDT for Latah County, Idaho. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1986, 3:53 PM PDT (22:53 UTC)
Expired
Jun 14, 1986, 5:00 PM PDT
In force
67 min
Issued by
NWS Spokane, WA
Area
Whole counties

County Latah County, ID

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 10.9 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.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 1986-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 1986-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3591 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBOI 142258 COR
SVRLWS
IDC069-057-WAC003-013-023-150100-

BULLETIN-EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING CORRECTED
NATIONAL WEATHER SERVICE BOISE, ID
453 PM MDT SAT JUN 14 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 600 PM FOR PERSONS IN THE FOLLOWING
COUNTIES

IDAHO..NEZ PERCE AND LATAH
WASHINGTON..ASOTIN COLUMBIA AND GARFIELD

SEVERE THUNDERSTORMS FORMING OVER THE BLUE MOUNTAINS ARE
MOVING NORTH-NORTHEASTWARD AND PRESENTLY IN PROGRESS IN
THE LEWISTON-CLARKSTON AREA.  WINDS HAVE REACHED 39 MILES
AN HOUR AT THE LEWISTON-NEZ PERCE COUNTY AIRPORT.  HAIL
TO ONE AND ONE-HALF INCHES IN DIAMETER WAS REPORTED IN
NORTHEAST OREGON DURING THE PAST HOUR..AS WELL AS SMALLER
HAIL IN AND AROUND CULDESAC.  THESE STORMS ARE EXPECTED TO
PERSIST INTO THE EARLY EVENING HOURS.

THOSE IN THE WARNING AREAS ARE ADVISED TO BE ALERT TO
THE POSSIBILITY OF STRONG WINDS AND LARGE HAIL LOCALLY,
AND TAKE WHATEVER PRECAUTIONS NECESSARY IN THE EVENT
THESE STORMS INTENSIFY.

UPDATES WILL BE PROVIDED AS NECESSARY.

WAUGH

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.

In the hours before

Special weather statement, Jun 14, 10:31 AM PDT, 5 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE, WA
1022 AM PDT SAT JUN 14 1986

    A STRONG LOW PRESSURE AREA IS MOVING INTO WESTERN WASHINGTON THIS
MORNING.  COOLER MARINE AIR HAS BEGUN TO CROSS THE CASCADES AND IS
RESPONSIBLE FOR THE DEVELOPEMENT OF THUNDERSTORMS ACROSS EASTERN WASH-
INGTON AND THE NORTH IDAHO PANHANDLE.

    A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR BENEWAH AND SHOSHONE
COUNTIES.  AS THE STORMS DEVELOPE THIS AFiTERNOON THERE IS A POSSIBILITY
OF LARGE HAIL..DANGEROUS LIGHTNING AND DAMAGING WINDS.

    CONDITIONS IN THESE AREAS ARE BEING CLOSELY MONITORED AND FURTHER
STATEMENTS WILL BE ISSUED AS NEEDED.

END/SAVOY
Special weather statement, Jun 14, 11:15 AM PDT, 4 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE, WA
1107 AM PDT SAT JUN 14 1986

    A STRONG LOW PRESSURE AREA IS MOVING INTO WESTERN WASHINGTON THIS
MORNING.  COOLER MARINE AIR HAS BEGUN TO CROSS THE CASCADES AND IS
RESPONSIBLE FOR THE DEVELOPEMENT OF THUNDERSTORMS ACROSS EASTERN WASH-
INGTON AND THE NORTH IDAHO PANHANDLE.

    A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR BENEWAH AND SHOSHONE
COUNTIES IN NORTH IDAHO AND FOR PEND OREILLE..SPOKANE..WHITMAN..GARFIELD
AND ASOTIN COUNTIES IN EASTERN WASHINGTON.  AS THE STORMS DEVELOPE THIS
AFTERNOON THERE IS A POSSIBILITY OF LARGE HAIL..DANGEROUS LIGHTNING AND
DAMAGING WINDS.

    CONDITIONS IN THESE AREAS ARE BEING CLOSELY MONITORED AND FURTHER
STATEMENTS WILL BE ISSUED AS NEEDED.

END/SAVOY

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 3:53 PM PDTSevere Thunderstorm WarningOTXNez Perce67 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1986Every severe thunderstorm warning in 1986

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.