Alert archive / Montana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 27, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 29, 1997, 5:49 PM MDT for Lincoln County, Montana. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 29, 1997, 5:49 PM MDT (23:49 UTC)
- Expired
- Jul 29, 1997, 6:30 PM MDT
- In force
- 41 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Lincoln County, MT
The radar
The Spokane radar (KOTX), 191 km from the middle of the area, began a volume at 23:52 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.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 11.8 hours before the alert went out and 119 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2306 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSO 292357 RRA SVRMSO MTC053-300030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 549 PM MDT TUE JUL 29 1997 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST MONTANA ...NORTHWESTERN LINCOLN COUNTY AT 540 PM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER TROY IN NORTHWEST LINCOLN COUNTY. THIS STORM WAS MOVING TO THE WEST NORTHWEST AT 15 MPH. LOOK FOR WIND GUSTS BETWEEN 50 TO 60 MPH WITH THIS STORM AND HEAVY RAIN UP TO ONE INCH OVER THE NEXT HOUR. 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.
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 Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 29, 1:49 PM MDT, 4 hours earlier.
Area forecast discussion, Jul 29, 1:49 PM MDT, 4 hours before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 145 PM MDT TUE JUL 29 1997 COMPLEX WX PATTERN AND MODELS DO NOT SEEM TO HAVE A GOOD HANDLE ON IT. SHORT WAVE INTO W CNTRL MT WITH DRY AIR MOVING IN BEHIND. TWO APPARENT WAVES SE OR. MOISTURE OVER NRN CA STILL MOVING NORTH AND EAST. BELIEVE THIS WILL EVENTUALLY GET PICKED UP IN WESTERLY FLOW AND MOVE THROUGH NW MT BUT TIMING IS TRICKY. MOISTURE OVER MT MUCH FURTHER NORTH THAN ETA RH FIELD AND HAVE NOT OBSERVED THE QPFS ADVERTISED. SHWRS AND TS DEVELOPING OVER AREA BUT NOTHING TOO EXCITING SO FAR. SO...LOOKING FOR SCATTERED CONVECTIVE ACTIVITY THIS AFTERNOON TAPERING OFF FROM THE SOUTH WITH SHORTWAVE MOVING THROUGH NORTHWEST LATE TONIGHT/EARLY WED AM. STRONG FOUR CORNERS HIGH DEVELOPING THURSDAY AND SHOULD KEEP MOST PRECIP NORTH OF AREA IN EXTENDED PERIOD. TEMPS A LITTLE COOLER WED THEN WARMING AGAIN THURSDAY AS CLOUDS CLEAR AND AIRMASS DRIES. HOADLEY ...FORECASTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE... LIB .. 060/085 055/088 ... 405321 FCA EE 058/083 053/086 051 405321 POL .. 059/081 054/083 ... 404311 MSO EE 057/085 052/088 052 404311 HMM .. 057/085 052/088 ... 4004311 BTM .. 049/082 047/087 ... 403221 S80 .. 059/083 054/086 ... 405321 P69 .. 061/085 057/088 ... 403221 SMN .. 047/087 054/090 ... 403221
Nearby
Severe Thunderstorm Warnings in Montana, 1997Every severe thunderstorm warning in 1997
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.