Alert archive / Montana / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 9, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jun 20, 2009, 10:15 PM MDT for Big Horn County, Montana. It was in force for 30 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
- Jun 20, 2009, 10:15 PM MDT (04:15 UTC)
- Expired
- Jun 20, 2009, 10:45 PM MDT
- In force
- 30 min
- Issued by
- NWS Billings, MT
- Area
- Storm-based polygon
County Big Horn County, MT
The radar
The Billings radar (KBLX), 99 km from the middle of the area, began a volume at 04:16 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 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 Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 9:31 PM MDT, 44 minutes earlier.
Area forecast discussion, Jun 20, 9:31 PM MDT, 44 minutes before
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</html>Hazardous weather outlook, Jun 20, 9:37 PM MDT, 38 minutes before
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Special weather statement, Jun 20, 8:13 PM MDT, 2 hours 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
813 PM MDT SAT JUN 20 2009
MTZ035-210300-
YELLOWSTONE MT-
813 PM MDT SAT JUN 20 2009
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN YELLOWSTONE COUNTY
UNTIL 900 PM MDT...
AT 810 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 9 MILES SOUTHEAST OF LAUREL...OR 16 MILES
SOUTHWEST OF BILLINGS...MOVING NORTH AT 25 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH EXTREMELY HEAVY RAINFALL AND
FREQUENT DANGEROUS LIGHTNING.
THIS STORM WILL BE NEAR...
LAUREL AROUND 820 PM MDT.
BILLINGS WEST END AND BILLINGS AROUND 835 PM MDT.
BILLINGS HEIGHTS AROUND 845 PM MDT.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 4552 10871 4552 10876 4555 10877 4555 10880
4563 10879 4563 10885 4589 10888 4588 10846
4549 10853 4549 10870
TIME...MOT...LOC 0212Z 186DEG 21KT 4559 10865Special weather statement, Jun 20, 8:16 PM MDT, 1 hour 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
816 PM MDT SAT JUN 20 2009
MTZ031-032-036-210300-
CUSTER MT-NORTHERN ROSEBUD MT-POWDER RIVER MT-
816 PM MDT SAT JUN 20 2009
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN ROSEBUD...NORTHWESTERN
POWDER RIVER AND SOUTHERN CUSTER COUNTIES UNTIL 900 PM MDT...
AT 805 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A LINE OF STRONG THUNDERSTORMS EXTENDING FROM 7 MILES NORTHEAST OF
ASHLAND TO 5 MILES SOUTHEAST OF MIZPAH...MOVING NORTH AT 10 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.
AREAS AFFECTED BY THIS STORM INCLUDE...MAINLY RURAL AREAS OF CENTRAL
CUSTER COUNTY.
MULTIPLE STORMS PRODUCING HEAVY RAIN THAT TRACK OVER THE SAME AREA
MAY CAUSE LOCALIZED FLOODING. DO NOT CROSS WATER OVER THE
ROADWAYS...TURN AROUND...DONT DROWN.
THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 4631 10550 4608 10513 4543 10584 4563 10624
4568 10624 4568 10635 4571 10640
TIME...MOT...LOC 0208Z 214DEG 6KT 4611 10531Special weather statement, Jun 20, 8:58 PM MDT, 1 hour 17 minutes before
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</html>The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 6:11 PM MDT | Special Weather Statement | BYZ | Custer | 34 min |
| Jun 20, 6:56 PM MDT | Special Weather Statement | BYZ | Golden Valley, Wheatland | 64 min |
| Jun 20, 7:33 PM MDT | Special Weather Statement | BYZ | Powder River | 42 min |
| Jun 20, 7:42 PM MDT | Special Weather Statement | BYZ | Yellowstone | 33 min |
| Jun 20, 8:13 PM MDT | Special Weather Statement | BYZ | Yellowstone | 47 min |
| Jun 20, 8:16 PM MDT | Special Weather Statement | BYZ | Custer | 44 min |
| Jun 20, 8:58 PM MDT | Special Weather Statement | BYZ | Custer | 62 min |
| Jun 20, 9:28 PM MDT | Special Weather Statement | BYZ | Musselshell | 92 min |
| Jun 20, 9:40 PM MDT | Special Weather Statement | BYZ | Big Horn, Yellowstone | 50 min |
| Jun 20, 9:59 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 31 min |
| Jun 20, 10:36 PM MDT | Special Weather Statement | BYZ | Yellowstone | 54 min |
| Jun 20, 10:44 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 31 min |
| Jun 20, 11:41 PM MDT | Special Weather Statement | BYZ | Rosebud, Treasure | 49 min |
| Jun 21, 4:48 PM MDT | Special Weather Statement | BYZ | 42 min | |
| Jun 21, 5:20 PM MDT | Special Weather Statement | BYZ | Big Horn | 25 min |
| Jun 21, 5:31 PM MDT | Special Weather Statement | BYZ | Sheridan | 44 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.