Alert archive / Montana / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 10, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jun 3, 2015, 11:55 PM MDT for Sweet Grass County, Montana. It was in force for 65 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 3, 2015, 11:55 PM MDT (05:55 UTC)
- Expired
- Jun 4, 2015, 1:00 AM MDT
- In force
- 65 min
- Issued by
- NWS Billings, MT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Sweet Grass County, MT
The radar
The Billings radar (KBLX), 103 km from the middle of the area, began a volume at 05:58 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 00:00Z, 5.9 hours before the alert went out and 190 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
- 7 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1928 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
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 3, 9:21 PM MDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jun 3, 9:21 PM MDT, 2 hours 34 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, Jun 3, 9:24 PM MDT, 2 hours 31 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>In the hours before
Special weather statement, Jun 3, 7:46 PM MDT, 4 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 746 PM MDT WED JUN 3 2015 MTZ028-041-042-040245- NORTHERN SWEET GRASS MT-SOUTHERN WHEATLAND MT-GOLDEN VALLEY MT- 746 PM MDT WED JUN 3 2015 ...SIGNIFICANT WEATHER ADVISORY... AT 744 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14 MILES SOUTHWEST OF HARLOWTON...MOVING EAST AT 15 MPH. DIME SIZE HAIL...WINDS IN EXCESS OF 40 MPH AND TORRENTIAL RAINFALL CAN BE EXPECTED WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN WHEATLAND...NORTH CENTRAL SWEET GRASS AND SOUTHWESTERN GOLDEN VALLEY COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4614 10995 4632 11007 4648 10963 4619 10946 TIME...MOT...LOC 0144Z 247DEG 13KT 4624 10997 TWH
Special weather statement, Jun 3, 7:52 PM MDT, 4 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 752 PM MDT WED JUN 3 2015 MTZ038-WYZ098-099-040245- SOUTHERN BIG HORN MT-NORTHEAST BIG HORN MOUNTAINS WY- SHERIDAN FOOTHILLS WY- 752 PM MDT WED JUN 3 2015 ...SIGNIFICANT WEATHER ADVISORY... AT 748 PM MDT...DOPPLER RADAR WAS TRACKING A A FEW STRONG THUNDERSTORMS NEAR SHERIDAN. ONE STORM WAS JUST NORTHEAST OF SHERIDAN. A SECOND STORM WAS 5 MILES WEST OF SHERIDAN. A THIRD STORM WAS 5 MILES SOUTH OF SHERIDAN. ALL STORMS WERE MOVING EAST TO NORTHEAST AT 15 MPH. TORRENTIAL RAINFALL AND HALF INCH HAIL CAN BE EXPECTED WITH THESE STORMS. TORRENTIAL RAINFALL WILL CAUSE STREAMS AND CREEKS TO RISE QUICKLY ALONG WITH PRODUCING STANDING WATER ON ROADS AND DRAMATICALLY REDUCING VISIBILITY. THOSE LIVING NEAR STREAMS AND CREEKS SHOULD WATCH FOR QUICKLY RISING WATER AND BE PREPARED TO TAKE ACTION IF NECESSARY. LOCATIONS IMPACTED INCLUDE... SHERIDAN...RANCHESTER...DAYTON...BIG HORN AND TONGUE RIVER RESERVOIR. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4462 10704 4489 10735 4515 10679 4485 10642 TIME...MOT...LOC 0148Z 247DEG 13KT 4488 10689 TWH
Special weather statement, Jun 3, 8:32 PM MDT, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
832 PM MDT WED JUN 3 2015
MTZ038-057-058-WYZ099-040330-
SOUTHERN ROSEBUD MT-NORTHERN BIG HORN MT-SOUTHERN BIG HORN MT-
SHERIDAN FOOTHILLS WY-
832 PM MDT WED JUN 3 2015
...SIGNIFICANT WEATHER ADVISORY...
AT 830 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 13
MILES SOUTHEAST OF LODGE GRASS...OR 29 MILES NORTH OF SHERIDAN...
MOVING NORTH AT 20 MPH.
NICKEL SIZE HAIL...TORRENTIAL RAINFALL AND WINDS IN EXCESS OF 40 MPH
CAN BE EXPECTED WITH THIS STORM. TORRENTIAL RAINFALL WILL CAUSE
STREAMS AND CREEKS TO RISE QUICKLY ALONG WITH PRODUCING STANDING
WATER ON ROADS AND DRAMATICALLY REDUCING VISIBILITY. THOSE LIVING
NEAR STREAMS AND CREEKS SHOULD WATCH FOR QUICKLY RISING WATER AND BE
PREPARED TO TAKE ACTION IF NECESSARY.
LOCATIONS IMPACTED INCLUDE...
BUSBY...TONGUE RIVER RESERVOIR...KIRBY...ROSEBUD BATTLEFIELD PARK AND
NORTHERN CHEYENNE INDIAN RESERVATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4500 10734 4551 10731 4552 10673 4535 10673
4535 10677 4518 10677 4518 10674 4499 10681
TIME...MOT...LOC 0230Z 194DEG 24KT 4520 10712
TWHSpecial weather statement, Jun 3, 8:46 PM MDT, 3 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 846 PM MDT WED JUN 3 2015 MTZ028-041-040345- NORTHERN SWEET GRASS MT-SOUTHERN WHEATLAND MT- 846 PM MDT WED JUN 3 2015 ...SIGNIFICANT WEATHER ADVISORY... AT 845 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10 MILES SOUTH OF HARLOWTON...MOVING NORTH AT 5 MPH. DIME SIZE HAIL...TORRENTIAL RAINFALL AND WINDS IN EXCESS OF 40 MPH CAN BE EXPECTED WITH THIS STORM. TORRENTIAL RAINFALL WILL CAUSE STREAMS AND CREEKS TO RISE QUICKLY ALONG WITH PRODUCING STANDING WATER ON ROADS AND DRAMATICALLY REDUCING VISIBILITY. THOSE LIVING NEAR STREAMS AND CREEKS SHOULD WATCH FOR QUICKLY RISING WATER AND BE PREPARED TO TAKE ACTION IF NECESSARY. LOCATIONS IMPACTED INCLUDE... TWODOT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4613 10983 4615 11009 4644 11012 4641 10967 TIME...MOT...LOC 0245Z 188DEG 5KT 4629 10992 TWH
Local storm report, Jun 3, 9:26 PM MDT, 2 hours 29 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, Jun 3, 11:32 PM MDT, 23 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>The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 7:46 PM MDT | Special Weather Statement | BYZ | Wheatland | 59 min |
| Jun 3, 8:32 PM MDT | Special Weather Statement | BYZ | Big Horn | 58 min |
| Jun 3, 8:46 PM MDT | Special Weather Statement | BYZ | Wheatland | 59 min |
| Jun 3, 9:12 PM MDT | Flash Flood Warning | BYZ | Wheatland | 6 hr |
| Jun 3, 11:32 PM MDT | Special Weather Statement | BYZ | Sweet Grass | 28 min |
| Jun 4, 1:10 AM MDT | Special Weather Statement | BYZ | Stillwater | 35 min |
| Jun 3, 7:52 PM MDT | Special Weather Statement | BYZ | Sheridan | 53 min |
| Jun 3, 10:46 PM MDT | River Flood Warning | BYZ | Sheridan | 48 hr |
Nearby
Severe Thunderstorm Warnings in Montana, 2015Every severe thunderstorm warning in 2015
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.