Alert archive / Montana / Tornado Warnings in 2007
Tornado Warning 3, NWS Missoula, MT
NWS Missoula, MT issued this tornado warning at Jul 18, 2007, 7:32 PM MDT for Lake County, Sanders County, Montana. It was in force for 28 min. 10 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 18, 2007, 7:32 PM MDT (01:32 UTC)
- Expired
- Jul 18, 2007, 8:00 PM MDT
- In force
- 28 min
- Issued by
- NWS Missoula, MT
- Area
- Counties, with a storm outline in the text
Counties Lake County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 65 km from the middle of the area, began a volume at 01:32 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 7:50 PM MDT | TSTM WND DMG | 10 Wnw Pablo, MT | NUMEROUS LARGE TREES AND BRANCHES SNAPPED IN HALF OR UP ROOTED FROM MICROBURST WINDS ESTIMATED UP TO 90 MPH. ONE FENCE SEVERELY DAMAGED FROM TREES BLOWN DOWN. ONE POWER POLE SNAPPED IN HALF. |
| Jul 18, 7:50 PM MDT | HAIL 1.5 | 10 Wnw Pablo, MT | HOME OWNERS REPORTED 1 TO 1 1/2 INCH DIAMETER HAIL WITH MICROBURST WINDS. |
| Jul 18, 7:55 PM MDT | TSTM WND DMG | 4 W Pablo, MT | THREE BARNS WITH WOOD AND TIN ROOFS BLOWN OFF FROM MICROBURST WINDS. WIND SPEEDS ESTIMATED UP TO 90 MPH. ONE BARN ALSO HAD WALL STRUCTURE DAMAGE. TIN DEBRIS BLOWN TO THREE TENTHS OF MILE AWAY FROM BARN. TRUCK WINDOWS SHATTERED FROM BLOWN DEBRIS. |
| Jul 18, 7:58 PM MDT | TORNADO | 6 S Polson, MT | POLICE REPORT FROM THE PUBLIC OF A TORNADO TOUCHDOWN SOUTH OF POLSON. ALSO MANY TREES DOWN SOUTH OF POLSON WITH ONE TREE FALLEN THROUGH HOME OWNERS ROOF. |
| Jul 18, 8:00 PM MDT | TSTM WND DMG | 2 Sw Polson, MT | NWS STORM SURVEY TEAM FOUND FLAG POLE BENT OVER. MEDIUM SIZED TREES AND BRANCHES OBSERVED DOWN. ESTIMATED 80 TO 90 MPH WINDS. |
| Jul 18, 8:01 PM MDT | HAIL 1 | Polson, MT | UNSPECIFIED WIND DAMAGE AS WELL. |
| Jul 18, 8:05 PM MDT | TSTM WND DMG | 2 N Polson, MT | LARGE TREES AND LIMBS BLOWN DOWN ON ROCKY POINT ROAD...POSSIBLY TORNADO DAMAGE. ALSO PENNY SIZE HAIL COVERING THE GROUND 4 INCHES DEEP. |
| Jul 18, 8:05 PM MDT | TORNADO | 6 S Polson, MT | MANY TREES DOWN. ON TREE FELL THROUGH A HOME ROOF. |
| Jul 18, 8:06 PM MDT | TSTM WND DMG | 2 W Polson, MT | 16 INCH TREE DIAMETER SNAPPED, 3/4 INCH HAIL AS WELL. |
| Jul 18, 8:06 PM MDT | NON-TSTM WND DMG | 2 W Polson, MT | 16 INCH TREE DIAMETER SNAPPED, 3/4 INCH HAIL AS WELL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 7:18 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 1.5 hours before the alert went out and 150 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
- 114 J/kg
- Mixed-layer CIN
- -269 J/kg
- Mixed-layer LCL
- 1909 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KMSO 190134 TORMSO MTC047-089-190200- /O.NEW.KMSO.TO.W.0003.070719T0132Z-070719T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MISSOULA MT 732 PM MDT WED JUL 18 2007 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * TORNADO WARNING FOR... CENTRAL LAKE COUNTY IN NORTHWEST MONTANA... EASTERN SANDERS COUNTY IN NORTHWEST MONTANA... * UNTIL 815 PM MDT. * AT 730 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS TORNADO WAS LOCATED 23 MILES SOUTHWEST OF POLSON...AND WAS MOVING NORTHEAST AT 35 MPH. * THE TORNADO IS WILL BE NEAR... POLSON AND BIG ARM AROUND 815 PM MDT. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 4742 11465 4733 11442 4772 11404 4784 11433 $$
2 follow-up statements
000
WWUS55 KMSO 190151
SVSMSO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
749 PM MDT WED JUL 18 2007
MTC089-190159-
/O.CAN.KMSO.TO.W.0003.000000T0000Z-070719T0200Z/
SANDERS MT-
749 PM MDT WED JUL 18 2007
...THE TORNADO WARNING FOR SANDERS COUNTY IS CANCELLED...
LAT...LON 4772 11405 4743 11433 4749 11429 4750 11435
4754 11435 4759 11431 4760 11433 4759 11435
4760 11448 4762 11449 4784 11431
$$
MTC047-190200-
/O.CON.KMSO.TO.W.0003.000000T0000Z-070719T0200Z/
LAKE MT-
749 PM MDT WED JUL 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR CENTRAL
LAKE COUNTY...
* AT 748 PM MDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED NEAR
ROUND BUTTE...OR ABOUT 13 MILES SOUTHWEST OF POLSON...AND WAS
MOVING NORTHEAST AT 35 MPH.
* THE TORNADO WILL BE NEAR...
POLSON AROUND 800 PM MDT.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 4772 11405 4743 11433 4749 11429 4750 11435
4754 11435 4759 11431 4760 11433 4759 11435
4760 11448 4762 11449 4784 11431
$$000
WWUS55 KMSO 190154 CCA
SVSMSO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
749 PM MDT WED JUL 18 2007
MTC089-190159-
/O.CAN.KMSO.TO.W.0003.000000T0000Z-070719T0200Z/
SANDERS MT-
749 PM MDT WED JUL 18 2007
...THE TORNADO WARNING FOR SANDERS COUNTY IS CANCELLED...
LAT...LON 4772 11405 4743 11433 4749 11429 4750 11435
4754 11435 4759 11431 4760 11433 4759 11435
4760 11448 4762 11449 4784 11431
$$
MTC047-190215-
/O.CON.KMSO.TO.W.0003.000000T0000Z-070719T0200Z/
LAKE MT-
749 PM MDT WED JUL 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR CENTRAL
LAKE COUNTY...
* AT 748 PM MDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED NEAR
ROUND BUTTE...OR ABOUT 13 MILES SOUTHWEST OF POLSON...AND WAS
MOVING NORTHEAST AT 35 MPH.
* THE TORNADO WILL BE NEAR...
POLSON AROUND 815 PM MDT.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 4772 11405 4743 11433 4749 11429 4750 11435
4754 11435 4759 11431 4760 11433 4759 11435
4760 11448 4762 11449 4784 11431
$$The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 6:19 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Sanders | 56 min |
| Jul 18, 7:28 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 9 min |
| Jul 18, 7:59 PM MDT | Tornado Warning | MSO | Lake | 46 min |
| Jul 18, 8:24 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 51 min |
| Jul 18, 8:29 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 46 min |
| Jul 18, 8:38 PM MDT | Tornado Warning | MSO | Flathead, Lake | 52 min |
| Jul 18, 9:08 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 67 min |
| Jul 18, 9:10 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 50 min |
| Jul 18, 9:23 PM MDT | Flash Flood Warning | MSO | Flathead, Lincoln | 3 hr |
| Jul 18, 9:37 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 38 min |
| Jul 18, 10:07 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 38 min |
| Jul 18, 11:18 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 42 min |
| Jul 19, 12:16 AM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 29 min |
| Jul 19, 1:43 AM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 32 min |
| Jul 19, 4:28 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 16 hr |
Nearby
Tornado Warnings in Montana, 2007Every tornado warning in 2007Tornadoes in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.