Alert archive / Montana / Special Weather Statements in 2009
Special Weather Statement, NWS Billings, MT
NWS Billings, MT issued this special weather statement at Aug 7, 2009, 4:13 PM MDT for Stillwater County, Montana. It was in force for 77 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
- Aug 7, 2009, 4:13 PM MDT (22:13 UTC)
- Expired
- Aug 7, 2009, 5:30 PM MDT
- In force
- 77 min
- Issued by
- NWS Billings, MT
County Stillwater County, MT
The radar
The Billings radar (KBLX), 37 km from the middle of the area, began a volume at 22:12 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
Great_falls, MT (KTFX), launched 12:00Z, 10.2 hours before the alert went out and 221 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
- 593 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 7, 2:38 PM MDT, 1 hour 35 minutes earlier.
Area forecast discussion, Aug 7, 2:38 PM MDT, 1 hour 35 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Aug 7, 2:42 PM MDT, 1 hour 31 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BILLINGS MT 242 PM MDT FRI AUG 7 2009 MTZ028>042-056>058-063>068-WYZ098-099-082045- SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER- FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER- SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK- NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS- NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY- LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS- CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS- 242 PM MDT FRI AUG 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH CENTRAL WYOMING. .DAY ONE...TONIGHT THUNDERSTORMS ARE LIKELY THROUGH TONIGHT AS A STRONG LOW PRESSURE SYSTEM MOVES THROUGH THE ROCKIES. A FEW STORMS COULD TURN SEVERE WITH LARGE HAIL AND DAMAGING WINDS. HEAVY RAINFALL AND FREQUENT LIGHTNING CAN ALSO BE EXPECTED. PONDING OF WATER ON ROADWAYS AND IN LOW LYING AREAS MAY OCCUR WITH HEAVIER RAINFALL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Aug 7, 2:33 PM MDT, 1 hour 40 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Aug 7, 3:40 PM MDT, 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 340 PM MDT FRI AUG 7 2009 MTZ028-042-063-072230- GOLDEN VALLEY MT-JUDITH GAP MT-SOUTHERN WHEATLAND MT- 340 PM MDT FRI AUG 7 2009 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GOLDEN VALLEY AND SOUTHEASTERN WHEATLAND COUNTIES UNTIL 430 PM MDT... AT 336 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES WEST OF DEADMANS BASIN RESERVOIR...OR JUST SOUTH OF SHAWMUT...MOVING NORTHEAST AT 15 MPH. PENNY SIZE HAIL...HEAVY RAIN AND FREQUENT LIGHTNING IS EXPECTED WITH THIS STORM...WHICH WILL AFFECT TRAVEL ALONG HIGHWAY 12 BETWEEN SHAWMUT AND RYEGATE. LAT...LON 4667 10938 4650 10907 4621 10951 4631 10971 TIME...MOT...LOC 2136Z 218DEG 12KT 4632 10953
Special weather statement, Aug 7, 3:40 PM MDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
340 PM MDT FRI AUG 7 2009
MTZ039-072300-
EASTERN CARBON MT-
340 PM MDT FRI AUG 7 2009
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CARBON COUNTY UNTIL 500
PM MDT...
AT 332 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORMS 14 MILES SOUTH OF BRIDGER...OR 20 MILES EAST
OF RED LODGE...MOVING NORTHEAST AT 10 MPH.
THESE STORMS WERE PRODUCING VERY HEAVY RAIN WHICH WILL LIKELY CAUSE
SMALL STREAMS SOUTH OF BRIDGER TO RISE INCLUDING SILVER TIP CREEK.
PONDING OF WATER ALONG HIGHWAYS 295 AND 310 AND IN LOW LYING AREAS
IS ALSO POSSIBLE THROUGH THE REMAINDER OF THE AFTERNOON.
LAT...LON 4530 10895 4530 10885 4500 10877 4499 10878
4499 10896 4499 10903
TIME...MOT...LOC 2133Z 207DEG 8KT 4509 10886Special weather statement, Aug 7, 3:43 PM MDT, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 343 PM MDT FRI AUG 7 2009 MTZ038-072245- SOUTHERN BIG HORN MT- 343 PM MDT FRI AUG 7 2009 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BIG HORN COUNTY UNTIL 445 PM MDT... AT 342 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 19 MILES SOUTHEAST OF FORT SMITH...OR 40 MILES NORTHWEST OF SHERIDAN...MOVING NORTHEAST AT 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER IS EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT LIGHTNING. THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THIS AREA. 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 4545 10757 4531 10724 4500 10759 4510 10781 TIME...MOT...LOC 2143Z 238DEG 7KT 4512 10764
Special weather statement, Aug 7, 4:13 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
413 PM MDT FRI AUG 7 2009
MTZ034-072330-
NORTHERN STILLWATER MT-
413 PM MDT FRI AUG 7 2009
...SIGNIFICANT WEATHER ADVISORY FOR STILLWATER COUNTY UNTIL 530 PM
MDT...
AT 405 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERAL SLOW MOVING THUNDERSTORMS OVER STILLWATER COUNTY...EXTENDING
FROM JUST EAST OF RAPELJE TO NEAR COLUMBUS AND ABSAROKEE. ONE
PARTICULAR STORM LOCATED NORTH OF INTERSTATE 90 BETWEEN COLUMBUS AND
PARK CITY WAS REMAINING STATIONARY. VERY HEAVY RAIN CAN BE EXPECTED
IN THESE AREAS THROUGH 530 PM MDT. SMALL HAIL AND WIND GUSTS TO 40
MPH ARE ALSO POSSIBLE.
PEOPLE SHOULD BE ALERT TO PONDING OF WATER ON ROADWAYS AND THE
POTENTIAL FOR RAPID WATER RUNOFF ASSOCIATED WITH THESE THUNDERSTORMS.
LAT...LON 4598 10891 4559 10903 4557 10908 4558 10912
4555 10913 4547 10935 4611 10922 4612 10892
TIME...MOT...LOC 2205Z 185DEG 4KT 4572 10907The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 6:41 PM MDT | Special Weather Statement | BYZ | Carbon | 64 min |
| Aug 6, 7:05 PM MDT | Special Weather Statement | BYZ | Yellowstone | 55 min |
| Aug 6, 7:52 PM MDT | Special Weather Statement | BYZ | Yellowstone | 53 min |
| Aug 6, 8:01 PM MDT | Special Weather Statement | BYZ | Big Horn | 59 min |
| Aug 6, 9:07 PM MDT | Special Weather Statement | BYZ | Rosebud, Treasure | 53 min |
| Aug 6, 11:04 PM MDT | Special Weather Statement | BYZ | Custer | 56 min |
| Aug 7, 12:12 AM MDT | Special Weather Statement | BYZ | Prairie | 48 min |
| Aug 7, 2:33 PM MDT | Special Weather Statement | BYZ | Wheatland | 57 min |
| Aug 7, 3:40 PM MDT | Special Weather Statement | BYZ | Golden Valley | 50 min |
| Aug 7, 3:43 PM MDT | Special Weather Statement | BYZ | Big Horn | 62 min |
| Aug 7, 4:15 PM MDT | Flash Flood Watch | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 6 more | 6 hr |
| Aug 7, 4:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Aug 7, 4:37 PM MDT | Flash Flood Warning | BYZ | Stillwater | 114 min |
| Aug 7, 4:50 PM MDT | Special Weather Statement | BYZ | Yellowstone | 40 min |
| Aug 7, 5:00 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 30 min |
| Aug 7, 5:26 PM MDT | Special Weather Statement | BYZ | Yellowstone | 94 min |
| Aug 7, 5:26 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 64 min |
| Aug 7, 5:35 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 55 min |
| Aug 7, 5:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 58 min |
| Aug 7, 5:49 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 56 min |
Nearby
Special Weather Statements in Montana, 2009Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.