Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 16, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 13, 2001, 2:32 PM MDT for Ravalli County, Montana. It was in force for 33 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 13, 2001, 2:32 PM MDT (20:32 UTC)
- Expired
- Jul 13, 2001, 3:05 PM MDT
- In force
- 33 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Ravalli County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 8.5 hours before the alert went out and 250 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
- 2349 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KMSO 132033 SVRMSO MTC081-132105- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 232 PM MDT FRI JUL 13 2001 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN RAVALLI COUNTY IN WEST CENTRAL MONTANA * UNTIL 305 PM MDT * AT 232 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF CONNER...OR 25 MILES SOUTH OF HAMILTON...MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL REMAIN OVER REMOTE AREAS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND HAIL...ALONG WITH FREQUENT LIGHTNING AND HEAVY RAIN. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA.
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 13, 2:30 PM MDT, 2 minutes earlier.
Area forecast discussion, Jul 13, 2:30 PM MDT, 2 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 230 PM MDT FRI JUL 13 2001 .SHORT TERM...MOIST SOUTHWEST FLOW OVER THE CWA TONIGHT. SHOWERS/THUNDERSTORMS FIRING OFF ACROSS THE SOUTHERN ZONES THIS AFTERNOON. THUNDERSTORMS ARE INCREASING ACROSS WESTERN MONTANA AND NORTH CENTRAL IDAHO THIS AFTERNOON. LARGE AMOUNT OF MOISTURE IS MOVING UP FROM THE SOUTHWEST AND SHOULD SUPPORT STRONG THUNDERSTORMS. ON SATURDAY THE UPPER LEVEL FLOW BECOMES MORE WESTERLY AND A LITTLE MORE STABLE...SO HAVE DECREASED THE POPS TO A SLIGHT CHANCE. ON SUNDAY A SYSTEM FROM THE PACIFIC NORTHWEST MOVES CLOSER AND BRINGS A BETTER CHANCE OF SHOWERS BY AFTERNOON. KOLATA .EXTENDED...MODELS IN GOOD AGREEMENT FOR EXTENDED. PATTERN STAYS CONSISTENT WITH UPPER TROF OVER THE PAC NORTHWEST AND SOUTHWEST FLOW OVER CWA. DAYS 3 THRU 5 COOLER WITH CLOUDS AND SHOWERS. UPPER LOW BEGINS TO MOVE ACROSS THE AREA ON WEDNESDAY. DRIER CONDITIONS FOR DAYS 6&7 AS SFC HIGH BUILDS IN. TAD OF A WARM UP ON THURSDAY AND FRIDAY. KPB .MSO...SVR THUNDERSTORM WATCH UNTIL 7 PM MDT.
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 6:16 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 44 min |
| Jul 13, 5:43 PM MDT | Severe Thunderstorm Warning | MSO | Silver Bow | 37 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning in 2001
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.