Alert archive / North Dakota / Flash Flood Warnings in 1993
Flash Flood Warning 7, NWS Bismarck, ND
NWS Bismarck, ND issued this flash flood warning at Jul 22, 1993, 2:03 AM MDT for Morton County, North Dakota. It was in force for 87 min.
The area
The counties it named.
The facts
- Issued
- Jul 22, 1993, 2:03 AM MDT (08:03 UTC)
- Expired
- Jul 22, 1993, 3:30 AM MDT
- In force
- 87 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Morton County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.1 hours before the alert went out and 45 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
- 59 J/kg
- Mixed-layer CIN
- -285 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBIS 220803
FFWBIS
NDC059-220930-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
203 AM MDT THU JUL 22 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 330 AM MDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE CENTRAL PART OF NORTH DAKOTA
CENTRAL MORTON
THIS INCLUDES THE AREA BETWEEN GLENN ULLIN AND NEW SALEM AND
INCLUDES THE CITY OF ALMONT.
AT 2 AM MDT OR 3 AM CDT OVER 2 INCHES OF RAIN HAD FALLEN OVER
CENTRAL MORTON COUNTY OVER THE PAST 3 HOURS. A DEPUTY AT GLEN ULLIN
REPORTED WATER OVER THE CURBS IN TOWN. FLOODING ALONG THE BIG
MUDDY CREEK WILL OCCUR.
STAY OUT OF DRY CREEK BEDS AND LOW LYING AREAS. FLASH FLOODS CAN
OCCUR WITH LITTLE OR NO ADVANCE WARNING.
DO NOT ATTEMPT TO DRIVE OVER ROADS COVERED BY FLOOD WATERS.
KASWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 21, 10:26 PM MDT, 3 hours 37 minutes before
NDZ001>004-006>008-220515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1020 PM MDT WED JUL 21 1993 ..STRONG THUNDERSTORMS CONTINUE TO MOVE ACROSS SOUTHWEST NORTH DAKOTA.. ...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MDT/7 AM CDT FOR WESTERN AND SOUTH CENTRAL NORTH DAKOTA... AT 1015 PM MDT WEATHER RADAR INDICATED A LARGE AREA OF THUNDERSTORMS OVER SOUTHWEST NORTH DAKOTA MOVING NORTH NORTHEAST AT 20 MPH. THE STRONGEST THUNDERSTORM WAS 25 MILES SOUTH OF DICKINSON...OR 5 MILES EAST OF NEW ENGLAND. THIS STORM LIKELY CONTAINS PEA TO MARBLE SIZE HAIL... DANGEROUS LIGHTNING...GUSTY WINDS...AND VERY HEAVY RAIN WHICH MAY CAUSE LOCALIZED FLOODING. PERSONS IN EASTERN HETTINGER AND EASTERN STARK COUNTIES SHOULD MOVE TO A PLACE OF SAFETY SHOULD THREATENING WEATHER APPROACH. REMEMBER...THE POTENTIAL FOR FLASH FLOODING IS HIGH TONIGHT. PERSONS IN FLOOD PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGH GROUND SHOULD FLOODING DEVELOP. DO NOT ATTEMPT TO DRIVE ACROSS FLOODED ROADS. LEBLANG
Special weather statement, Jul 21, 11:27 PM MDT, 2 hours 36 minutes before
NDZ001>014-220625- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1225 AM CDT THU JUL 22 1993 ..STRONG THUNDERSTORMS COVER CENTRAL AND WESTERN NORTH DAKOTA... ...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MDT/7 AM CDT FOR WESTERN AND SOUTH CENTRAL NORTH DAKOTA... AT 1225 AM CDT WEATHER RADARS INDICATED TWO LARGE AREA OF THUNDERSTORMS. THE FIRST AREA COVERED MOST OF THE WESTERN THIRD OF THE STATE. THE SECOND AREA EXTENDED FROM JAMESTOWN TO JUST SOUTH OF MINOT. WHILE BOTH AREAS WERE MOVING TO THE NORTH-NORTHEAST AT 20 MPH SOME OF THE INDIVIDUAL THUNDERSTORMS WERE MOVING AT 40 MPH. THESE STORMS WERE PRODUCING VERY HEAVY RAIN...WINDS OVER 50 MPH AND PEA SIZE HAIL. SOME LOCALIZED FLOODING IS LIKELY FROM THESE STORMS. OTHER THUNDERSTORMS WERE DEVELOPING NORTH OF MINOT AND EAST OF DEVILS LAKE. THESE ALSO HAVE THE POTENTIAL OF PRODUCING VERY HEAVY RAIN... STRONG WINDS AND HAIL. REMEMBER...THE POTENTIAL FOR FLASH FLOODING IS HIGH TONIGHT. EVERYONE IN FLOOD PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGH GROUND SHOULD FLOODING DEVELOP. DO NOT ATTEMPT TO DRIVE ACROSS FLOODED ROADS. KAS
Special weather statement, Jul 22, 12:46 AM MDT, 1 hour 17 minutes before
NDZ001>014-220800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 145 AM CDT THU JUL 22 1993 ..STRONG THUNDERSTORMS COVER CENTRAL NORTH DAKOTA... ...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MDT/7 AM CDT FOR WESTERN AND SOUTH CENTRAL NORTH DAKOTA... AT 145 AM CDT WEATHER RADARS INDICATED TWO LARGE AREA OF THUNDERSTORMS. THE FIRST AREA COVERED MOST OF CENTRAL NORTH DAKOTA AND EXTENDED FROM NORTH OF MINOT NEAR THE CANADIAN BORDER...SOUTHWARD OVER LAKE SAKAKAWEA TO WEST OF BISMARCK DOWN TO SOUTH DAKOTA. THE OTHER AREA EXTENDED FROM NORTH OF MINOT TO SOUTH OF DEVILS LAKE. BOTH AREAS WERE MOVING TO THE NORTH-NORTHEAST AT 35 MPH. THE THUNDERSTORMS IN THESE TWO AREAS WERE PRODUCING VERY HEAVY RAIN AND PEA SIZE HAIL AS WELL AS WIND GUSTS TO 50 MPH. LOCALIZED FLOODING WILL OCCUR WITH THESE STORMS. OTHER THUNDERSTORMS WERE DEVELOPING IN THE NORTHWESTERN CORNER OF SOUTH DAKOTA. THESE THUNDERSTORMS WILL ALSO MOVE NORTHj-NORTHEAST INTO NORTH DAKOTA. REMEMBER...THE POTENTIAL FOR FLASH FLOODING IS HIGH TONIGHT. EVERYONE IN FLOOD PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGH GROUND SHOULD FLOODING DEVELOP. DO NOT ATTEMPT TO DRIVE ACROSS FLOODED ROADS. KAS
Local storm report, Jul 22, 1:10 AM MDT, 53 minutes before
STORM REPORT NATIONAL WEATHER SERVICE WILLISTON ND 210 AM CDT THU JUL 22 1993 TIME EVENT LOCATION 1130 PM CDT WIND ALEXANDER MCKENZIE COUNTY JUL 21 1993 3 GRAIN BINS DESTROYED....BARN DAMAGED 1205 AM CDT WIND GUST TO 60 MPH NATIONAL WEATHER SERVICE OFFICE JUL 22 1993 0.46 RAIN IN 20 MINUTES WILLISTON ND...WILLIAMS COUNTY RICHMOND
Local storm report, Jul 22, 1:13 AM MDT, 50 minutes before
STORM REPORT NATIONAL WEATHER SERVICE WILLISTON ND 210 AM CDT THU JUL 22 1993 TIME EVENT LOCATION 1130 PM CDT WIND ALEXANDER MCKENZIE COUNTY JUL 21 1993 3 GRAIN BINS DESTROYED....BARN DAMAGED 1205 AM CDT WIND GUST TO 60 MPH NATIONAL WEATHER SERVICE OFFICE JUL 22 1993 0.46 RAIN IN 20 MINUTES WILLISTON ND...WILLIAMS COUNTY RICHMOND
Special weather statement, Jul 22, 1:48 AM MDT, 15 minutes before
NDZ001>014-220900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 245 AM CDT THU JUL 22 1993 ..STRONG THUNDERSTORMS CONTINUE OVER CENTRAL NORTH DAKOTA... ...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MDT/7 AM CDT FOR WESTERN AND SOUTH CENTRAL NORTH DAKOTA... AT 245 AM CDT WEATHER RADARS INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM NORTHEAST OF MINOT NEAR THE CANADIAN BORDER...SOUTHWESTWARD TO WEST OF THE BISMARCK/MANDAN AREA THEN CONTINUING SOUTHWEST INTO NORTHWESTERN SOUTH DAKOTA. THIS AREA WAS MOVING TO THE NORTHEAST AT 25 MPH WHILE INDIVIDUAL THUNDERSTORMS WERE MOVING NORTH-NORTHEAST AT 40 MPH. SOME OF THE LARGER THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN...PEA SIZE HAIL AND WIND GUSTS TO 50 MPH. LOCALIZED FLOODING WILL OCCUR WITH THESE THUNDERSTORMS. OTHER THUNDERSTORMS WERE DEVELOPING IN THE NORTHWESTERN CORNER OF SOUTH DAKOTA. THESE THUNDERSTORMS WILL MOVE INTO SOUTHWESTERN NORTH DAKOTA. REMEMBER...THE POTENTIAL FOR FLASH FLOODING IS HIGH TONIGHT. EVERYONE IN LOW LYING OR FLOOD PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGH GROUND SHOULD FLOODING DEVELOP. REMEMBER...IF FLOODING OCCURS...DO NOT ATTEMPT TO DRIVE ACROSS FLOODED ROADS. ALSO...WATCH OUT FOR WASHED OUT BRIDGES AND CULVERTS. KAS
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 10:11 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie | 64 min |
| Jul 21, 10:49 PM MDT | Severe Thunderstorm Warning | BIS | Williams | 56 min |
| Jul 21, 11:43 PM MDT | Severe Thunderstorm Warning | BIS | Divide | 62 min |
| Jul 21, 11:50 PM MDT | Severe Thunderstorm Warning | BIS | Grant | 40 min |
| Jul 22, 5:25 PM MDT | Tornado Warning | BIS | McLean, Ward | 35 min |
Nearby
Flash Flood Warnings in North Dakota, 1993Every flash flood warning in 1993
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.