Alert archive / Montana / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 7, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at May 25, 2013, 11:41 AM MDT for Carter County, Fallon County, Montana. It was in force for 49 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
- May 25, 2013, 11:41 AM MDT (17:41 UTC)
- Expired
- May 25, 2013, 12:30 PM MDT
- In force
- 49 min
- Issued by
- NWS Billings, MT
- Area
- Storm-based polygon
Counties Carter County, MT, Fallon County, MT
The radar
The Rapid City radar (KUDX), 238 km from the middle of the area, began a volume at 17:42 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
Rapid City, SD (KUNR), launched 12:00Z, 5.7 hours before the alert went out and 241 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
- 1101 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1140 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 May 25, 10:00 AM MDT, 1 hour 41 minutes earlier.
Area forecast discussion, May 25, 10:00 AM MDT, 1 hour 41 minutes before
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</html>Hazardous weather outlook, May 25, 8:52 AM MDT, 2 hours 49 minutes before
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</html>In the hours before
Special weather statement, May 25, 10:47 AM MDT, 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 1047 AM MDT SAT MAY 25 2013 MTC011-017-025-075-251745- POWDER RIVER MT-FALLON MT-CARTER MT-CUSTER MT- 1047 AM MDT SAT MAY 25 2013 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN POWDER RIVER... SOUTHWESTERN FALLON...NORTHERN CARTER AND SOUTHEASTERN CUSTER COUNTIES UNTIL 1145 AM MDT... AT 1040 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 19 MILES SOUTHWEST OF EKALAKA...MOVING NORTHEAST AT 35 MPH. SMALL HAIL SHOULD BE EXPECTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... EKALAKA AND MEDICINE ROCKS ST PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM 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 4606 10426 4560 10482 4582 10518 4633 10493 TIME...MOT...LOC 1640Z 208DEG 33KT 4577 10492 TESAR
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 10:47 AM MDT | Special Weather Statement | BYZ | Fallon | 58 min |
| May 25, 1:10 PM MDT | Special Weather Statement | BYZ | Fallon | 35 min |
| May 25, 3:03 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 27 min |
| May 25, 3:22 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 38 min |
| May 25, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 min |
| May 25, 4:07 PM MDT | Tornado Warning | BYZ | Carter | 23 min |
| May 25, 4:11 PM MDT | Special Weather Statement | BYZ | Powder River | 49 min |
| May 25, 4:29 PM MDT | Tornado Warning | BYZ | Carter | 31 min |
| May 25, 5:00 PM MDT | Special Weather Statement | BYZ | Carter | 45 min |
| May 25, 5:00 PM MDT | Tornado Warning | BYZ | Carter | 30 min |
| May 25, 5:08 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 67 min |
| May 25, 5:22 PM MDT | Special Weather Statement | BYZ | Custer | 38 min |
| May 25, 5:38 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 52 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2013Every severe thunderstorm warning in 2013
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.