Alert archive / Minnesota / Flash Flood Warnings in 1993
Flash Flood Warning 8, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Jul 24, 1993, 6:30 PM CDT for Becker County, Otter Tail County, Minnesota. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 24, 1993, 6:30 PM CDT (23:30 UTC)
- Expired
- Jul 24, 1993, 10:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Becker County, MN, Otter Tail County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 11.5 hours before the alert went out and 260 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
- 313 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 242336 FFWFAR MNC005-027-111-NDC017-000-077-250300- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE FARGO ND 630 PM CDT SAT JUL 24 1993 THE NATIONAL WEATHER SERVICE IN FARGO HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST MINNESOTA ...WESTERN BECKER COUNTY...CLAY COUNTY IN WEST CENTRAL MINNESOTA ...NORTHWESTERN OTTER TAIL COUNTY IN EAST CENTRAL NORTH DAKOTA ...CASS COUNTY... ...CITY OF FARGO-MOORHEAD IN SOUTHEAST NORTH DAKOTA ...RICHLAND COUNTY AT 630 PM CDT RADAR SHOWED WIDESPREAD HEAVY RAIN WITH EMBEDDED STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST NORTH DAKOTA AS WELL AS WEST CENTRAL MINNESOTA. SATELLITE...RADAR AND SURFACE REPORTS INDICATE THE HEAVIEST RAINFALLS EXTENDED FROM SOUTHWEST RICHLAND COUNTY...THROUGH THE FARGO/MOORHEAD AREA...THEN EASTWARD TO NEAR DETROIT LAKES MINNESOTA. THE OVERALL MOVEMENT OF THE HEAVY RAIN...SHOWERS AND THUNDERSTORMS IS SLOWLY NORTHEAST. REPORTS OF FLOODING ARE COMMON IN THE FARGO/MOORHEAD AREA AS A RESULT OF THE HEAVY RAINS. DUE TO SATURATED SOILS...ADDITIONAL RAINFALLS WILL RUN OFF INTO RIVERS AND STREAMS AND POND IN LOWLYING AREAS. ROLLAG MINNESOTA IN EXTREME EASTERN CLAY COUNTY MINNESOTA RECIEVED 3.5 INCHES OF RAIN IN 1/2 HOUR BETWEEN 530 AMD 600 PM CDT. NUMEROUS 1 TO 2 INCH REPORTS HAVE ALSO BEEN REPORTED. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. EWENS
What 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 24, 3:11 PM CDT, 3 hours 19 minutes before
NDZ015-016-017-018-MNZ001-006-007-010-250000- SPECIAL WEATHER STATEMENT FOR FLOODING NATIONAL WEATHER SERVICE FARGO ND 310 PM CDT SAT JUL 24 1993 ...FLOOD WARNING ENDED AT 300 PM CDT GRIGGS...STEELE...TRAILL AND GRAND FORKS COUNTIES... ...FLOOD WARNING EXPIRES AT 415 PM CDT FOR CASS COUNTY... HEAVY RAINS HAVE MOVED INTO NORTHWEST MINNESOTA AS OF 300 PM CDT... HOWEVER MORE INTENSE THUNDERSTORMS WERE DEVELOPING OVER SOUTHEAST NORTH DAKOTA AND NORTHEAST SOUTH DAKOTA. ALTHOUGH THE FLOODING RAINS HAVE TEMPORARLY ENDED...FLOODING WAS REPORTED WIDESPREAD ACROSS GRIGGS.. STEELE AND PART OF CASS COUNTIES ESPECIALLY IN OPEN COUNTY AND LOW SPOTS NEAR RIVERS AND STREAMS. FLOODING WILL CONTINUE ESPECIALLY OVER EASTERN GRIGGS...MUCH OF STEELE AND PARTS OF CASS COUNTY. IN THE WEST FARGO AREA AND HARWOOD AREA OF CASS COUNTY FLOODING IS REPORTED WITH SOME EVACUATIONS UNDERWAY. THE STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST SOUTH DAKOTA AND SOUTHEAST NORTH DAKOTA ARE FORECAST TO MOVE INTO PARTS OF EAST CENTRAL NORTH DAKOTA BY LATE AFTERNOON AND THROUGH THE EVENING. ANY RAINFALL WILL CAUSE ADDITIONAL FLOODING ESPECIALLY IN RURAL CASS COUNTY... HOWEVER URBAN FLOODING IS ALSO A POSSIBILITY. STAY TUNED TO RADIO AND T.V. AS WELL AS NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. EWENS
Special weather statement, Jul 24, 3:46 PM CDT, 2 hours 44 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-242150- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 350 PM CDT SAT JUL 24 1993 ...FLASH FLOOD WARNING FOR CASS COUNTY EXPIRES AT 415 PM CDT... ...ATMOSPHERE SETTING UP FOR NEXT ROUND OF HEAVY RAIN... AT 326 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE DEVELOPING OVER NORTHEAST SOUTH DAKOTA AND BEGINNING TO CROSS INTO SOUTHEAST NORTH DAKOTA. STORMS EXTENDED FROM ABERDEEN SOUTH DAKOTA TO THE LIDGERWOOD AREA OF EXTREME SOUTHEAST NORTH DAKOTA. MODERATE TO HEAVY RAIN WAS REPORTED NEAR LIDGERWOOD IN THE NEARBY TOWNS OF MILNOR AND RUTLAND. THESE THUNDERSTORMS WERE MOVING NORTH AT 15 MILES AN HOUR AND WILL MOVE TOWARD ALREADY FLOODED AREAS OF SOUTHEAST NORTH DAKOTA OVER THE NEXT ONE TO TWO HOURS. THE STORMS WILL REACH THE FARGO/MOORHEAD AREA BETWEEN 600 AND 630 PM CDT. THE INFLUENCE OF THE THESE STORMS...THE VERY HEAVY RAIN IN PARTICILAR...WILL BE FELT AS FAR WEST OF AS VALLEY CITY NORTH DAKOTA AT THAT TIME. MANY ROADWAYS IN OUR AREA ARE UNDER WATER. DO NOT VENTURE OUT UNLESS THERE IS AN EMERGENCY. STAY ALERT FOR THE POSSIBLITY OF RAPIDLY RISING WATER IF YOU ARE IN (A LOW LYING AREA OR NEAR A STREAM OR RIVER. YOU SHOULD GO TO A SAFE PLACE NOW. CHECK YOUR BASEMENT SUMP PUMPS AND DRAINAGE AROUND YOUR HOME TO BE SURE IT IS IN GOOD WORKING ORDER. D MORIN
Special weather statement, Jul 24, 4:45 PM CDT, 1 hour 45 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-242240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 440 PM CDT SAT JUL 24 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR MUCH OF EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA FOR TONIGHT... AT 425 PM CDT...HEAVY RAINS WERE OCCURRING OVER PARTS OF EASTERN CLAY AND WESTERN BECKER COUNTIES OF NORTHWEST MINNESOTA. THIS RAIN WAS MOVING SLOWLY NORTHEAST AND MAY CAUSE FLOODING IN LOW LYING AREAS AND ALONG STREAMS AND RIVERS. ALSO...HEAVY RAINS WERE MOVING INTO SOUTHEAST NORTH DAKOTA...ESPECIALLY OVER DICKEY AND SARGENT COUNTIES WHERE THE GROUND IS ALREADY HEAVILY SATURATED. PERSONS OVER DICKEY AND SARGENT COUNTIES OF SOUTHEAST NORTH DAKOTA AND CLAY AND WESTERN BECKER COUNTIES OF NORTHWEST MINNESOTA SHOULD PREPARE FOR FLOODING CONDITIONS OVER THE NEXT FEW HOURS AND BE READY TO MOVE TO A PLACE OF SAFETY IF FLOODING OCCURS. OTHER SHOWERS AND THUNDERSTORMS WERE INCREASING IN AREAL COVERAGE OVER NORTHEAST SOUTH DAKOTA AND MOVING NORTH INTO SOUTHEAST NORTH DAKOTA. THESE THUNDERSTORMS ALSO CONTAINED HEAVY RAIN AND COULD CAUSE FLOODING OVER LOW LYING AREAS AND ALONG STREAMS AND RIVERS. MANY ROADWAYS IN OUR AREA ARE UNDER WATER. DO NOT VENTURE OUT UNLESS THERE IS AN EMERGENCY. STAY ALERT FOR THE POSSIBLITY OF RAPIDLY RISING WATER IF YOU ARE IN A LOW LYING AREA OR NEAR A STREAM OR RIVER. YOU SHOULD BE PREPARED TO MOVE TO SAFE PLACE. CHECK YOUR BASEMENT SUMP PUMPS AND DRAINAGE AROUND YOUR HOME TO BE SURE IT IS IN GOOD WORKING ORDER. SPIES
Special weather statement, Jul 24, 5:46 PM CDT, 44 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-242340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 540 PM CDT SAT JUL 24 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR MUCH OF EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA FOR TONIGHT... ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST NORTH DAKOTA AND NORTHEAST SOUTH DAKOTA UNTIL 11 PM CDT... AT 527 PM CDT...SHOWERS AND NUMEROUS THUNDERSTORMS WHICH CONTAIN VERY HEAVY RAIN WERE OCCURRING OVER SOUTHEAST NORTH DAKOTA...NORTHEAST SOUTH DAKOTA AND A PORTION OF NORTH CENTRAL AND NORTHWEST MINNESOTA. THE THUNDERSTORMS WITH THE HEAVIEST RAIN APPEAR TO BE MOVING INTO SOUTH- EAST NORTH DAKOTA...MAINLY OVER DICKEY...LA MOURE...SARGENT...MCINTOSH AND SOUTHERN BARNES COUNTIES. IN NORTHWEST MINNESOTA BOTH CLAY AND BECKER COUNTIES WERE EXPERIENCING VERY HEAVY RAINS. . SCATTERED SHOWERS AND THUNDERSTORMS WERE ALSO OCCURRING OVER NORTH- EAST NORTH DAKOTA BETWEEN GRAND FORKS AND DEVILS LAKE...NORTHWARD TO THE CANADIAN LINE. MANY ROADWAYS ARE ALREADY UNDER WATER IN MANY AREAS. REMEMEMBER... DO NOT ATTEMPT TO DRIVE THROUGH ROADS THAT ARE SUBMERGED IN WATER. STAY ALERT FOR THE POSSIBVLITY OF RAPIDLY RISING WATER IF YOU ARE IN A LOW LYING AREA OR NEAR A STREAM OR RIVER. YOU SHOULD BE PREPARED TO MOVE TO SAFE PLACE. CHECK YOUR BASEMENT SUMP PUMPS AND DRAINAGE AROUND YOUR HOME TO BE SURE IT IS IN GOOD WORKING ORDER. SPIES
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 4:30 PM CDT | Flash Flood Warning | FGF | Clay | 3 hr |
| Jul 24, 6:30 PM CDT | Flash Flood Warning | FGF | Clay | 4 hr |
Nearby
Flash Flood Warnings in Minnesota, 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.