Alert archive / Montana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Glasgow, MT

July 10, 1995Phillips County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jul 10, 1995, 6:58 PM MDT for Phillips County, Montana. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Jul 10, 1995, 6:58 PM MDT (00:58 UTC)
Expired
Jul 10, 1995, 8:00 PM MDT
In force
62 min
Issued by
NWS Glasgow, MT
Area
Whole counties

County Phillips County, MT

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.0 hours before the alert went out and 97 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, Glasgow Intl Airport, MT at 00:00Z on 1995-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 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, Glasgow Intl Airport, MT at 00:00Z on 1995-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939587897Sfc1 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
502 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
3008 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
59 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 
WUUS1 KGGW 110058 RRA
SVRGGW
MTC071-110200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
658 PM MDT MON JUL 10 1995
 
THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..........................
 
IN NORTH CENTRAL MONTANA
 
   ...SOUTHWESTERN PHILLIPS COUNTY...INCLUDING ZORMTAN AND THE
LITTLE ROCKIES.
 
 
RADAR SHOWED A SEVERE THUNDERSTORM ENTERING SOUTHWEST PHILLIPS COUNTY...
MOVING TO THE NORTHEAST AT 30 MPH. VERY STRONG WINDS OCCURRED WITH THE
STORM AS IT MOVED THROUGH FERGUS COUNTY.
 
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
 
 
NNNN

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, Jul 10, 6:00 PM MDT, 58 minutes before
MTZ005-009-110100
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
600 PM MDT MON JUL 10 1995

...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT...

AS OF 545 PM...RADAR SHOWED AN ISOLATED VERY STRONG THUNDERSTORM HAD
FORMED VERY SUDDENLY IN WESTERN GARFIELD COUNTY...NEAR THE
MISSOURI RIVER. THAT'S ABOUT 80 MILES SOUTHWEST OF GLASGOW.

THE STORM WAS MOVING TO THE NORTHEAST AT 35 MPH.

PERSONS IN NORTHERN GARFIELD...SOUTHEAST PHILLIPS...AND SOUTHWEST
VALLEY COUNTIES CAN EXPECT HAIL AND STRONG WINDS FROM THE STORM.
SIMONSEN

The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 4:27 PM MDTSevere Thunderstorm WarningGGWPhillips63 min

Nearby

Severe Thunderstorm Warnings in Montana, 1995Every severe thunderstorm warning in 1995

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.