Alert archive / Montana / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 2, NWS Missoula, MT

June 27, 1988Granite County, Missoula County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 27, 1988, 2:16 PM MDT for Granite County, Missoula County, Montana. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1988, 2:16 PM MDT (20:16 UTC)
Expired
Jun 27, 1988, 3:15 PM MDT
In force
59 min
Issued by
NWS Missoula, MT
Area
Whole counties

Counties Granite County, MT, Missoula County, MT

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

Great Falls, MT (KGTF), launched 12:00Z, 8.3 hours before the alert went out and 199 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, Great Falls, MT at 12:00Z on 1988-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 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, Great Falls, MT at 12:00Z on 1988-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
9 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
1556 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-13 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 KMSO 272016
SVRMSO
MTC039-063-272115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE MISSOULA MT
216 PM MDT MON JUN 27 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 315 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE WEST CENTRAL PART OF MONTANA
      GRANITE...EASTERN MISSOULA

RADAR AND PUBLIC REPORTS INDICATE HEAVY THUNDERSTORMS MOVING INTO
EASTERN MISSOULA AND GRANINTE COUNTIES.. HAIL UP TO ONE INCH IN
DIAMETER HAS BEEN REPORTED...

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORECED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.

 FURTHER STATEMENTS WILL BE ISSUED AS NECESSARY.

ENSLEY/GOENS

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 27, 11:43 AM MDT, 2 hours 33 minutes before
<<<<<<<<^GTFSPSMSO
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
 1135 AM MON. JUNE 27 1988

 THUNDERSTORMS ARE DEVELOPING OVER THE BITTERROT MOUNTAINS THIS MORNING.
AT THE CURRENT TIME THE MISSOULA WEATHER RADAR IS SHOWING SOME VERY
STRONG THUNDERSTORMS ABOUT 15 TO 20 MILES SOUTHWEST OF MISSOULA.  THESE
STORMS ARE MOVING TOWARD MISSOULA.. AND SHOULD PASS ACROSS THE VALLEY
IN THE NEXT 30 TO 40 MINUTES.  THESE STORMS COULD PRODUCE STRONG AND
GUSTY WINDS WITH SOME BRIEFLY HEAVY RAINSHOWERS.

MORE THUNDERSTORMS WILL DEVELOP THIS AFTERNOON.. OVER MISSOULA.. RAVALLI..
LAKE.. MINERAL.. AND GRANITE COUNTIES...  PEOPLE IN WESTERN MONTANA SHOULD
BE AWARE OF THESE THUNDERSTORMS DURQING THE AFTERNOON.

FURTHER STATEMENT WILL BE ISSUED AS CONDTIONS WARRANT.

 GOENS/1742
Special weather statement, Jun 27, 12:21 PM MDT, 1 hour 55 minutes before
<<<<<<<<^GTFSPSFCA
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KALISPELL MT
1115 AM MDT MON JUN 27 1988

THUNDERSTORMS ARE DEVELOPING IN WESTERN MONTANA LATE THIS MORNING DUE
TO ABUNDANT MOISTURE AND STRONG SURFACE HEATING. MORE THUNDERSTORMS
WILL DEVELOP THIS AFTERNOON AND EVENING. SOME THUNDERSTORMS COULD BE
QUITE STRONG AND MAY HAVE GUSTY WINDS TO 40 MPH AND SMALL HAIL.

FUTHER STATEMENTS WILL BE ISSUED AS NEEDED.

END
MC

Nearby

Severe Thunderstorm Warnings in Montana, 1988Every severe thunderstorm warning in 1988

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.