Alert archive / North Dakota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 134, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 21, 2007, 2:03 AM MDT for Adams County, Grant County, North Dakota. It was in force for 57 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 21, 2007, 2:03 AM MDT (08:03 UTC)
- Expired
- Jun 21, 2007, 3:00 AM MDT
- In force
- 57 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
Counties Adams County, ND, Grant County, ND
The radar
The Bismarck radar (KBIS), 118 km from the middle of the area, began a volume at 08:03 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 1:29 AM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 8.1 hours before the alert went out and 323 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
- 833 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 1832 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 1:15 PM MDT, 12 hours 48 minutes earlier.
Area forecast discussion, Jun 20, 1:15 PM MDT, 12 hours 48 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 215 PM CDT WED JUN 20 2007 .SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT A SLOW MOVING PROGRESSIVE RIDGE WILL CRAWL ACROSS THE NORTHERN PLAINS DURING THE SHORT TERM FORECAST PERIOD. AT THE SURFACE...LOW LEVEL MOISTURE WILL BE SURGING NORTHWARD AND A LOW LEVEL NOCTURNAL JET WILL DEVELOP EACH NIGHT. THIS BASICALLY ADDS UP TO EVENING AND NIGHTTIME THUNDERSTORMS...WHICH WILL LIKELY DEVELOP INTO ONE OR TWO MCS EACH NIGHT. LOCATIONS WILL DEPEND ON THE POSITION OF A QUASI STATIONARY FRONT WHICH WILL LAY IN AN EAST/WEST ORIENTATION. LATER IN THE FORECAST PERIOD CAPPING MAY BECOME A LIMITING FACTOR IN SOME PARTS OF THE REGION. TEMPERATURES AND DEW POINTS WILL BE ON THE RISE THROUGH THE PERIOD AND BY SATURDAY IT SHOULD BE QUITE MUGGY. .LONG TERM...HOT/HUMID AIR STILL SLATED THROUGH SUNDAY...THEN RELIEF ARRIVES MONDAY THROUGH WEDNESDAY WITH LOWER HUMIDITY. 12Z GFS SLOWS THE FRONTAL PASSAGE SUNDAY OVER BISMARCK NEAR MIDNIGHT...WHEREAS THE PREVIOUS RUNS HAD IT PASSING THROUGH SUNDAY AFTERNOON. 12Z GFS FORECAST SOUNDING FOR 00Z MONDAY SHOWS A VERY UNSTABLE ATMOSPHERE...HOWEVER A STRONG CAP IS ALSO EVIDENT FROM THE SFC TO 650MB. MODIFYING THE SOUNDING WITH TEMPS IN THE MID 90S AND DEWPOINTS AROUND 70 DOES WEAKEN THE CAP...BUT NOT COMPLETELY. THUS WILL CONTINUE WITH SLIGHT CHC DURING THE DAY AND CHC IN THE EVENING/NIGHT WITH THE FRONT AND WEAKENING CAP. THE UPPER TROUGH LAGS FAIRLY FAR BEHIND MAIN SURFACE FRONT AND DOESNT ARRIVE UNTIL MONDAY AFTERNOON INTO MONDAY NIGHT. EXPECT SHOWERS/THUNDERSTORMS MONDAY BUT PROBABLY NOT SEVERE AS WARMEST AIR AND SURFACE FRONT WILL HAVE PAST WELL EAST OF THE FORECAST AREA. DRIER AND COOLER AIR MOVES IN FOR MON/TUE...THEN A GRADUAL WARM UP ON WED/THU. && .AVIATION...VFR CONDITIONS EXPECTED TO CONTINUE THE NEXT 24HRS WITH ISOLATED THUNDERSTORMS FROM NEAR MIDNIGHT TONIGHT THROUGH THURSDAY MORNING AS AN UPPER LEVEL DISTURBANCE MOVES THROUGH THE STATE. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && RSL/KS
Hazardous weather outlook, Jun 20, 4:15 AM MDT, 21 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 515 AM CDT WED JUN 20 2007 NDZ001>005-009>013-017>023-025-031>036-040>046-211015- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS- FOSTER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-SLOPE- HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS- 515 AM CDT WED JUN 20 2007 /415 AM MDT WED JUN 20 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ALONG THE SOUTH DAKOTA BORDER THIS AFTERNOON...THEN A CHANCE OF THUNDERSTORMS TONIGHT OVER ALL OF WESTERN AND CENTRAL NORTH DAKOTA. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS THURSDAY THROUGH MONDAY. AN UNSETTLED WEATHER PATTERN WITH SEVERAL LOW PRESSURE SYSTEMS AFFECTING THE NORTHERN PLAINS...WITH LOW CONFIDENCE IN TIMING AND AREAL EXTENT OF SHOWERS OR THUNDERSHOWERS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NDZ037-047-048-050-051-211015- STUTSMAN-LOGAN-LA MOURE-MCINTOSH-DICKEY- 515 AM CDT WED JUN 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ALONG THE SOUTH DAKOTA BORDER THIS AFTERNOON...THEN A CHANCE OF THUNDERSTORMS TONIGHT OVER ALL OF WESTERN AND CENTRAL NORTH DAKOTA. A SMALL STREAM FLOOD ADVISORY IS IN EFFECT FOR SMALL STREAMS AND LOWLAND FLOODING. SEE THE LATEST FLOOD STATEMENT FOR DETAILS. A RIVER FLOOD WARNING IS IN EFFECT FOR THE JAMES RIVER NEAR LUDDEN DAM AND THE JAMES RIVER AT LAMOURE. SEE THE LATEST FLOOD STATEMENT FOR DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS THURSDAY THROUGH MONDAY. AN UNSETTLED WEATHER PATTERN WITH SEVERAL LOW PRESSURE SYSTEMS AFFECTING THE NORTHERN PLAINS...WITH LOW CONFIDENCE IN TIMING AND AREAL EXTENT OF SHOWERS OR THUNDERSHOWERS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. JV
In the hours before
Local storm report, Jun 21, 1:35 AM MDT, 28 minutes before
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</html>The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 1:22 AM MDT | Severe Thunderstorm Warning | BIS | Hettinger | 53 min |
| Jun 21, 2:23 AM MDT | Severe Thunderstorm Warning | BIS | Slope | 67 min |
| Jun 21, 3:03 AM MDT | Severe Thunderstorm Warning | BIS | Dickey | 34 min |
| Jun 21, 3:19 AM MDT | Severe Thunderstorm Warning | BIS | Emmons | 56 min |
| Jun 21, 3:26 AM MDT | Severe Thunderstorm Warning | BIS | Hettinger | 64 min |
| Jun 21, 3:33 AM MDT | Severe Thunderstorm Warning | BIS | Sioux | 57 min |
| Jun 21, 7:45 AM MDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Williams | 60 min |
| Jun 21, 10:39 AM MDT | Severe Thunderstorm Warning | BIS | Dunn | 26 min |
| Jun 21, 12:36 PM MDT | Severe Thunderstorm Warning | BIS | Golden Valley | 54 min |
| Jun 21, 2:01 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie | 40 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2007Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.