Alert archive / North Dakota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 310, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 27, 2011, 10:22 PM CDT for Divide County, Williams County, North Dakota. It was in force for 38 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, 2011, 10:22 PM CDT (03:22 UTC)
- Expired
- Aug 27, 2011, 11:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Divide County, ND, Williams County, ND
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.4 hours before the alert went out and 231 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
- 170 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 2762 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
362
WUUS53 KBIS 280322
SVRBIS
NDC023-105-280400-
/O.NEW.KBIS.SV.W.0310.110828T0322Z-110828T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1022 PM CDT SAT AUG 27 2011
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN DIVIDE COUNTY IN NORTHWEST NORTH DAKOTA...
NORTH CENTRAL WILLIAMS COUNTY IN NORTHWEST NORTH DAKOTA...
* UNTIL 1100 PM CDT
* AT 1018 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR FORTUNA...OR 23 MILES WEST OF CROSBY...AND
MOVING SOUTHEAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
WRITING ROCK STATE HISTORICAL SITE...HANKS...ZAHL...APPAM...
ALAMO...CORINTH AND WILDROSE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...TAKE SHELTER IN A STURDY
BUILDING...AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4862 10309 4847 10384 4894 10400 4902 10374
4901 10369
TIME...MOT...LOC 0321Z 326DEG 32KT 4889 10378
WIND...HAIL <50MPH 1.00IN
$$
HAMILTON3 follow-up statements
945
WWUS53 KBIS 280332
SVSBIS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1032 PM CDT SAT AUG 27 2011
NDC023-105-280400-
/O.CON.KBIS.SV.W.0310.000000T0000Z-110828T0400Z/
WILLIAMS ND-DIVIDE ND-
1032 PM CDT SAT AUG 27 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN DIVIDE
AND NORTH CENTRAL WILLIAMS COUNTIES UNTIL 1100 PM CDT...
AT 1029 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
FORTUNA...OR 6 MILES NORTHEAST OF WRITING ROCK STATE HISTORICAL
SITE...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
HANKS...ZAHL...APPAM...ALAMO...CORINTH AND WILDROSE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.
THIS DANGEROUS STORM PRODUCED QUARTER SIZED HAIL AND 60 MPH WINDS 8
MILES NORTHWEST OF FORTUNA JUST AFTER 10 PM THIS EVENING.
&&
LAT...LON 4892 10395 4900 10376 4899 10370 4862 10309
4847 10384
TIME...MOT...LOC 0330Z 326DEG 32KT 4881 10373
WIND...HAIL 60MPH 1.00IN
$$
HAMILTON931 WWUS53 KBIS 280351 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1051 PM CDT SAT AUG 27 2011 NDC023-105-280400- /O.CON.KBIS.SV.W.0310.000000T0000Z-110828T0400Z/ WILLIAMS ND-DIVIDE ND- 1051 PM CDT SAT AUG 27 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN DIVIDE AND NORTH CENTRAL WILLIAMS COUNTIES UNTIL 1100 PM CDT... AT 1046 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 10 MILES EAST OF WRITING ROCK STATE HISTORICAL SITE...OR 20 MILES SOUTHWEST OF CROSBY...MOVING SOUTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... HANKS...ZAHL...ALAMO...APPAM...CORINTH AND WILDROSE. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. DEADLY LIGHTNING AND VERY HEAVY RAIN IS ALSO OCCURRING WITH THIS STORM. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4879 10385 4896 10365 4862 10309 4847 10384 TIME...MOT...LOC 0351Z 326DEG 32KT 4871 10360 WIND...HAIL 60MPH 1.00IN $$ HAMILTON
015 WWUS53 KBIS 280402 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1102 PM CDT SAT AUG 27 2011 NDC023-105-280411- /O.EXP.KBIS.SV.W.0310.000000T0000Z-110828T0400Z/ WILLIAMS ND-DIVIDE ND- 1102 PM CDT SAT AUG 27 2011 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN DIVIDE AND NORTH CENTRAL WILLIAMS COUNTIES HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER HEAVY RAIN AND SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM OVER SOUTH CENTRAL DIVIDE COUNTY THROUGH 1115 PM CDT. LAT...LON 4879 10385 4896 10365 4862 10309 4847 10384 TIME...MOT...LOC 0351Z 326DEG 32KT 4871 10360 $$ HAMILTON
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 11:31 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 44 min |
| Aug 27, 11:44 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 51 min |
| Aug 28, 12:21 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, McKenzie | 54 min |
| Aug 28, 1:08 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 67 min |
| Aug 28, 4:06 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 39 min |
| Aug 28, 4:15 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 32 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2011Every severe thunderstorm warning in 2011
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.