Alert archive / Montana / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 13, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 19, 2003, 8:25 PM MDT for Phillips County, Montana. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 19, 2003, 8:25 PM MDT (02:25 UTC)
- Expired
- Jun 19, 2003, 9:30 PM MDT
- In force
- 65 min
- Issued by
- NWS Glasgow, MT
- Area
- Counties, with a storm outline in the text
County Phillips County, MT
The radar
The Glasgow radar (KGGW), 101 km from the middle of the area, began a volume at 02:27 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 2.4 hours before the alert went out and 102 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
- 459 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 2785 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KGGW 200225 SVRGGW MTC071-200330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GLASGOW MT 825 PM MDT THU JUN 19 2003 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN PHILLIPS COUNTY IN NORTHEAST MONTANA * UNTIL 930 PM MDT * AT 822 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF LORING...OR ABOUT 10 MILES WEST OF WHITEWATER...MOVING NORTH AT 10 TO 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LORING BY 830 PM MDT PORT OF MORGAN BY 925 PM MDT VERY LARGE HAIL IS POSSIBLE WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...SEEK SHELTER INDOORS. STRONG AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. LAT...LON 4798 10844 4812 10744 4899 10721 4900 10822 $$ VALONE
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 Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 19, 3:05 PM MDT, 5 hours 20 minutes earlier.
Area forecast discussion, Jun 19, 3:05 PM MDT, 5 hours 20 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
305 PM MDT THU JUN 19 2003
SHORT TERM...TONIGHT THROUGH SATURDAY
WIDELY SCATTERED THUNDERSTORMS DEVELOPING JUST WEST OF THE CWFA WITH
THIS TREND TO CONTINUE INTO TONIGHT. SHOWERS AND THUNDERSTORMS
EXPECTED TO DEVELOP IN ERNEST OVER CENTRAL MONTANA FRIDAY AND THEN
SPREAD EASTWARD WITH FRONTAL TROUGH FRIDAY EVENING AND NIGHT. MODEL
SOUNDINGS CONTINUE TO INDICATE A GRADUAL DECREASE IN SOUTHEASTERLY
FLOW IN THE LOWER LEVELS OF THE ATMOSPHERE THIS EVENING. HOWEVER,
THUNDERSTORM DEVELOPMENT WITH VERY LOW SURFACE PRESSURES TO THE WEST
OF THE CWFA AND GOOD MIXING UNTIL SUNSET WOULD INDICATE WINDS WILL
CONTINUE JUST BELOW OR AT LAKE WIND ADVISORY LEVELS UNTIL ABOUT
SUNSET. THUS, WILL ALLOW LAKE WIND ADVISORY TO CONTINUE THROUGH 9PM
THIS EVENING. UPPER LEVEL TROUGH TO BEGIN MOVING EASTWARD FRIDAY
WITH MAXIMUM CHANCES FOR RAINFALL STILL EXPECTED TOMORROW EVENING
AND NIGHT OVER CWFA. GRADUAL DRYING INDICATED UNDER WESTERLY FLOW
FROM WEST TO EAST ACROSS THE CWFA ON SATURDAY. LYNN
.LONG TERM...SAT NIGHT THRU THURSDAY
UNSETTLED PATTERN ENTIRE EXTENDED PERIOD AS MODELS SHOW DEEP AND
PERSISTENT MEAN UPPER TROUGH OVER WESTERN UNITED STATES. BELOW
NORMAL TEMPERATURES AND A CHANCE OF SHOWERS/THUNDER THROUGH BULK OF
PERIOD. WHILE COOL...COLD TEMPERATURES AT MID-LEVELS OF ATMOSPHERE
SUGGEST ENOUGH INSTABILITY TO INCLUDE THUNDER...PLUS IN BETTER
AGREEMENT WITH ADJACENT OFFICES. ETA/AVN SHOW DRYING AND PARTIAL
CLEARING SATURDAY NIGHT...BUT HAVE INTRODUCED SLIGHT CHANCE OF
SHOWERS AND PARTLY CLOUDY TO COOPERATE WITH ADJACENT OFFICES WANTING
CHANCE POPS. EXPECT SECOND DRY AIRMASS TO PUSH IN SUNDAY NIGHT...
WHICH IS ALREADY IN GRIDS. DRY PERIOD COULD LINGER INTO MONDAY
MORNING BUT AGAIN HAVE ADJUSTED TO INCLUDE CHANCE OF PRECIPITATION
TO COORDINATE WITH ADJACENT OFFICES. GFS SHOWS SECOND...REINFORCING
TROUGH ROTATING SOUTHEAST OUT OF GULF OF ALASKA EARLY NEXT WEEK
WHICH THEN PERSISTS THROUGH END OF PERIOD. WHILE REASONABLY
CONFIDENT WITH SYNOPTIC SCALE TREND IN FORECAST...MUST BROADBRUSH
GRIDS BECAUSE OF UNCERTAINTY OVER TIMING OF INDIVIDUAL VORTICITY
CENTERS ON MESO SCALE ROTATING AROUND LONG WAVE TROUGH. INHERITED
VERY COOL GRIDS...MADE MINOR ADJUSTMENTS TO BLEND BETTER WITH
GENERALLY SLIGHTLY WARMER GRIDS AT ADJACENT OFFICES. DNS
KGGW TTE 060/086 056/073 051/069 77366322
TTTT 048/070 049/069 049/070 049/073 8603333333
KGDV TTE 061/090 057/077 054/071 77046322
TTTT 045/072 050/071 050/072 050/075 8603333333
.GGW...LAKE WIND ADVISORY THROUGH 03Z THIS EVENING FOR FORT PECK
LAKE.Hazardous weather outlook, Jun 19, 2:57 PM MDT, 5 hours 28 minutes before
MTZ016>027-059>062-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 257 PM MDT THU JUN 19 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... A LAKE WIND ADVISORY IS IN EFFECT FOR FORT PECK LAKE FOR TODAY THROUGH 9 PM THIS EVENING. SEE GTFNPWGGW OR WWUS75 KGGW FOR FURTHER INFORMATION. THERE IS A CHANCE FOR THUNDERSTORMS TONIGHT WEST OF SCOBEY...WOLF POINT AND CIRCLE. A FEW OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND WIND GUSTS IN EXCESS OF 60 MPH. .DAYS TWO THROUGH SEVEN... A STRONG COLD FRONT WILL MOVE EAST ACROSS NORTHEAST MONTANA FRIDAY AFTERNOON AND FRIDAY NIGHT. THUNDERSTORMS ARE LIKELY ALONG AND AHEAD OF THIS FRONT. SOME OF THESE STORMS WILL BECOME SEVERE WITH WIND GUSTS IN EXCESS OF 60 MPH AND LARGE HAIL. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Jun 19, 4:54 PM MDT, 3 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0454 PM MDT THU JUN 19 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0452 PM 13 NW WINNETT MT 0.75 IN HAIL
06/19/03 PETROLEUM
VALONELocal storm report, Jun 19, 4:54 PM MDT, 3 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT...COR FOR CODING
NATIONAL WEATHER SERVICE GLASGOW MT
454 PM MDT THU JUN 19 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0452 PM 13 NW WINNETT MT 0.75 IN HAIL
06/19/03 PETROLEUM
NNNN
VALONELocal storm report, Jun 19, 6:18 PM MDT, 2 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0618 PM MDT THU JUN 19 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0600 PM 1 S WINNETT MT 0.75 IN HAIL
06/19/03 PETROLEUM
VALONELocal storm report, Jun 19, 6:40 PM MDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0640 PM MDT THU JUN 19 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0625 PM 8 ESE WINNETT MT 0.88 IN HAIL
06/19/03 PETROLEUM
VALONEThe office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 6:15 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 60 min |
| Jun 19, 6:36 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 54 min |
| Jun 19, 8:45 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jun 19, 9:38 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 52 min |
| Jun 20, 3:15 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| Jun 20, 3:25 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 65 min |
| Jun 20, 4:07 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 53 min |
| Jun 20, 4:09 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 66 min |
| Jun 20, 4:17 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 58 min |
| Jun 20, 4:58 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jun 20, 4:59 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum, Phillips | 61 min |
| Jun 20, 5:13 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jun 20, 5:16 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 59 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2003Every severe thunderstorm warning in 2003
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.