Alert archive / North Dakota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 334, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 27, 2007, 1:36 AM MDT for Grant County, Morton County, North Dakota. It was in force for 54 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 27, 2007, 1:36 AM MDT (07:36 UTC)
- Expired
- Aug 27, 2007, 2:30 AM MDT
- In force
- 54 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
Counties Grant County, ND, Morton County, ND
The radar
The Bismarck radar (KBIS), 39 km from the middle of the area, began a volume at 07:36 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 7.6 hours before the alert went out and 43 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
- 1997 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 2248 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KBIS 270736 SVRBIS NDC037-059-270830- /O.NEW.KBIS.SV.W.0334.070827T0736Z-070827T0830Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 236 AM CDT MON AUG 27 2007 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA... SOUTHEASTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA... * UNTIL 330 AM CDT(230 AM MDT) * AT 130 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS LOCATED 30 MILES SOUTHWEST OF MANDAN...OR ABOUT 33 MILES SOUTHWEST OF BISMARCK...AND MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... 9 MILES SOUTH OF MANDAN AROUND 330 AM CDT... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. LAT...LON 4659 10151 4631 10140 4658 10069 4688 10087 $$ JF
2 follow-up statements
000 WWUS53 KBIS 270804 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 304 AM CDT MON AUG 27 2007 NDC037-270814- /O.CAN.KBIS.SV.W.0334.000000T0000Z-070827T0830Z/ GRANT ND- 204 AM MDT MON AUG 27 2007 ...THE SEVERE THUNDERSTORM WARNING FOR GRANT COUNTY IS CANCELLED... LAT...LON 4660 10127 4631 10105 4644 10065 4666 10070 $$ NDC059-270830- /O.CON.KBIS.SV.W.0334.000000T0000Z-070827T0830Z/ MORTON ND- 304 AM CDT MON AUG 27 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR SOUTHEASTERN MORTON COUNTY... AT 301 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS LOCATED 6 MILES NORTH OF BREIEN...OR ABOUT 25 MILES SOUTH OF BISMARCK...MOVING NORTHEAST AT 20 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... 8 MILES SOUTHEAST OF ST. ANTHONY AROUND 320 AM CDT... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. LAT...LON 4660 10127 4631 10105 4644 10065 4666 10070 $$ JF
000 WWUS53 KBIS 270825 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 326 AM CDT MON AUG 27 2007 NDC059-270836- /O.EXP.KBIS.SV.W.0334.000000T0000Z-070827T0830Z/ MORTON ND- 326 AM CDT MON AUG 27 2007 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORTON COUNTY EXPIRES AT 330 AM CDT... THE SEVERE THUNDERSTORM HAS MOVED OUT OF THE AREA AND NO LONGER POSES A SIGNIFICANT THREAT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT MONDAY MORNING FOR SOUTHEASTERN NORTH DAKOTA. LAT...LON 4660 10127 4631 10105 4644 10065 4666 10070 $$ JF
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 Aug 26, 2:17 PM MDT, 11 hours 19 minutes earlier.
Area forecast discussion, Aug 26, 2:17 PM MDT, 11 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 317 PM CDT SUN AUG 26 2007 .SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT... THE APPROACH OF AN UPPER LEVEL TROUGH WILL PUSH A COLD FRONT ACROSS CENTRAL AND EASTERN NORTH DAKOTA THIS EVENING. CAPPING IS STRONG BUT THE 4KM NNM WRF FORECASTS A LINE OF STRONG THUNDERSTORMS FROM BISMARCK NORTHEAST FROM 23Z ON. I HAVE USED THIS MODEL FOR TONIGHTS FORECAST. THEN A SHALLOW UPPER TROUGH WILL LINGER OVER NORTH DAKOTA THROUGH TUESDAY. MULTIPLE WAVES IN THIS CYCLONIC FLOW WILL KICK OFF SHOWERS FROM TIME TO TIME. THEN UPPER LEVEL RIDGING ARRIVES WEDNESDAY TO DRY THINGS OUT. LONG TERM...THURSDAY THROUGH SUNDAY NIGHT... HIGH PRESSURE RIDGE DOMINATES THURSDAY AND FRIDAY WITH DRY WEATHER AND WARMING TEMPERATURES. WARMED HIGHS SLIGHTLY FRI AND SAT AHEAD OF THE FRONT...80S TO AROUND 90 BASED UPON 850MB TEMP TRENDS. UPPER RIDGE THEN FLATTENS SAT/SUN AS A COLD FRONT AND SEVERAL SHORTWAVES TRAVERSE ACROSS THE NORTHERN PLAINS. BROUGHT SLIGHT CHC SHWRS/TSTMS STARTING SAT NIGHT AND CONTINUED THIS THREAT THROUGH SUN. && .AVIATION...A COLD FRONT MOVING INTO CENTRAL NORTH DAKOTA THIS AFTERNOON AND EVENING WILL SPARK SCATTERED SHOWERS AND THUNDERSTORMS ALONG AND AHEAD OF THE FRONT...MAINLY ALONG A LINE FROM NEAR MINOT SOUTH TO BISMARCK AND AREAS EAST. BEHIND THE FRONT ON MONDAY...AREAS OF MVFR CONDITIONS CAN BE EXPECTED AS LOW CLOUDS DEVELOP. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && RSL/KS
Hazardous weather outlook, Aug 26, 3:15 AM MDT, 22 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE BISMARCK ND 415 AM CDT SUN AUG 26 2007 NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-270915- 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- STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN- LA MOURE-MCINTOSH-DICKEY- 415 AM CDT SUN AUG 26 2007 /315 AM MDT SUN AUG 26 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND WEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF THUNDERSTORMS IN SOUTHWEST AND CENTRAL NORTH DAKOTA LATE THIS AFTERNOON ALONG AND AHEAD OF A COLD FRONT WHICH WILL BE ALONG A LINE FROM DEVILS LAKE TO HETTINGER BY EARLY EVENING. THE STRONGEST CAPE WILL BE EAST OF THE FRONT...BUT WITH A GOOD CAP. THE CAP WILL BE WEAKEST ALONG THE FRONTAL BOUNDARY...AND LIFTING OVER THE FRONT MAY BE ENOUGH TO START ISOLATED CONVECTION. AS THE FRONT MOVES EAST TONIGHT...THE BEST CHANCE OF THUNDERSTORMS WILL BE IN THE FAR EASTERN COUNTIES. IF THUNDERSTORMS DO DEVELOP...THE STRONG CAPE INDICATES A POTENTIAL FOR SEVERE THUNDERSTORMS. THE CHANCE OF THUNDERSTORMS WILL CONTINUE THROUGH TUESDAY...ALTHOUGH WITH MUCH WEAKER CAPE...THE POTENTIAL FOR SEVERE THUNDERSTORMS IS MUCH LESS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Local storm report, Aug 26, 7:36 PM MDT, 6 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
836 PM CDT SUN AUG 26 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM TORNADO 5 NE NAPOLEON 46.55N 99.69W
08/26/2007 LOGAN ND LAW ENFORCEMENT
TORNADO MOVING EAST.
&&
KBIRKLocal storm report, Aug 26, 8:10 PM MDT, 5 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
910 PM CDT SUN AUG 26 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0902 PM HAIL 20 ENE NAPOLEON 46.61N 99.38W
08/26/2007 E1.75 INCH LOGAN ND LAW ENFORCEMENT
&&
KBIRKLocal storm report, Aug 26, 8:46 PM MDT, 4 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
946 PM CDT SUN AUG 26 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0910 PM HAIL 17 E NAPOLEON 46.50N 99.41W
08/26/2007 E4.25 INCH LOGAN ND BROADCAST MEDIA
&&
KBIRKLocal storm report, Aug 26, 8:55 PM MDT, 4 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BISMARCK ND
955 PM CDT SUN AUG 26 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0805 PM TORNADO 8 NNW NAPOLEON 46.61N 99.83W
08/26/2007 LOGAN ND PUBLIC
SEVERAL REPORTS OF A TORNADO RELAYED BY STATE RADIO.
0809 PM HAIL MEDINA 46.90N 99.30W
08/26/2007 E0.88 INCH STUTSMAN ND PUBLIC
0835 PM TORNADO 5 NE NAPOLEON 46.55N 99.69W
08/26/2007 LOGAN ND LAW ENFORCEMENT
TORNADO MOVING EAST.
0902 PM HAIL 20 ENE NAPOLEON 46.61N 99.38W
08/26/2007 E1.75 INCH LOGAN ND LAW ENFORCEMENT
0910 PM HAIL 17 E NAPOLEON 46.50N 99.41W
08/26/2007 E4.25 INCH LOGAN ND BROADCAST MEDIA
&&
KBIRKThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 6:32 PM MDT | Severe Thunderstorm Warning | BIS | Kidder, Logan | 58 min |
| Aug 26, 7:00 PM MDT | Tornado Warning | BIS | Logan | 30 min |
| Aug 26, 7:06 PM MDT | Severe Thunderstorm Warning | BIS | Stutsman | 54 min |
| Aug 26, 7:27 PM MDT | Tornado Warning | BIS | Logan | 33 min |
| Aug 26, 7:29 PM MDT | Severe Thunderstorm Warning | BIS | Kidder | 46 min |
| Aug 26, 8:00 PM MDT | Tornado Warning | BIS | Logan | 30 min |
| Aug 26, 8:27 PM MDT | Severe Thunderstorm Warning | BIS | Logan | 53 min |
| Aug 26, 8:39 PM MDT | Severe Thunderstorm Warning | BIS | LaMoure | 48 min |
| Aug 27, 1:43 AM MDT | Severe Thunderstorm Warning | BIS | Emmons, Logan | 62 min |
| Aug 27, 1:58 AM MDT | Severe Thunderstorm Warning | BIS | Sioux | 32 min |
| Aug 27, 2:31 AM MDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 59 min |
| Aug 27, 2:42 AM MDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan | 53 min |
| Aug 27, 2:48 AM MDT | Tornado Warning | BIS | Emmons | 27 min |
| Aug 27, 3:24 AM MDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 41 min |
| Aug 27, 11:30 AM MDT | Severe Thunderstorm Warning | BIS | Kidder, Logan, Stutsman | 60 min |
| Aug 27, 11:55 AM MDT | Severe Thunderstorm Warning | BIS | Grant | 50 min |
| Aug 27, 12:10 PM MDT | Severe Thunderstorm Warning | BIS | Emmons | 38 min |
| Aug 27, 12:25 PM MDT | Severe Thunderstorm Warning | BIS | Sioux | 65 min |
| Aug 27, 12:30 PM MDT | Severe Thunderstorm Warning | BIS | Stutsman | 60 min |
| Aug 27, 1:03 PM MDT | Severe Thunderstorm Warning | BIS | Logan | 42 min |
| Aug 27, 2:54 PM MDT | Severe Thunderstorm Warning | BIS | LaMoure | 66 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.