Alert archive / Mississippi / Flash Flood Warnings in 1991
Flash Flood Warning 80, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Oct 26, 1991, 7:23 PM CDT for Adams County, Mississippi. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Oct 26, 1991, 7:23 PM CDT (00:23 UTC)
- Expired
- Oct 26, 1991, 9:30 PM CDT
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Adams County, MS
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 0.4 hours before the alert went out and 152 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
- 1243 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 744 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Oct 26, 4:38 PM CDT, 2 hours 45 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-262230- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 430 PM CDT SAT OCT 26 1991 ...THUNDERSTORMS INTENSIFYING OVER WEST CENTRAL MISSISSIPPI... AT 430 PM CDT WEATHER SERVICE RADAR IN JACKSON INDICATED THAT THUNDERSTORMS HAVE INTENSIFIED DURING THE PAST HOUR. THE STRONGEST STORMS WERE LOCATED IN THE ROLLING FORK/HOLLY BLUFF AREA WHILE ANOTHER CLUSTER OF STRONG THUNDERSTORMS WERE IN NORTHEAST LOUISIANA... SOUTHWEST OF LAKE PROVIDENCE. THESE STORMS WERE MOVING NORTH AT 20 MILES AN HOUR. THE SHARKEY COUNTY SHERIFF OFFICE REPORTED STRONG GUSTY WINDS WITH THE STORMS ABOUT 12 MILES SOUTH OF ROLLING FORK JUST AFTER 4 PM CDT. THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS NEAR 45 MILES AN HOUR...HEAVY DOWNPOURS AND FREQUENT LIGHTNING. OTHER STORMS WER OCCURRING BETWEEN CLARKSDALE AND GREENWOOD AND JUST SOUTH OF YAZOO CITY. A F6EW THUNDERSTORMS IN EAST CENTRAL LOUISIANA WILL LIKELY AFFECT SOUTHWEST MISSISSIPPI...ESPECIALLY AROUND NATCHEZ AND WOODVILLE...WITHIN THE NEXT HOUR.
Special weather statement, Oct 26, 5:49 PM CDT, 1 hour 34 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-262335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 535 PM CDT SAT OCT 26 1991 ...THUNDERSTORMS WITH HEAVY RAIN CONTINUE OVER WESTERN MISSISSIPPI... AT 535 PM CDT WEATHER SERVICE RADAR IN JACKSON CONTINUED TO SHOW THUNDERSTORMS WITH HEAVY RAIN OVER WESTERN MISSISSIPPI. THE HEAVIEST RAIN WAS OCCURRING OVER SUNFLOWER AND WASHINGTON COUNTIES...BETWEEN VICKSBURG AND HOLLY BLUFF...AND JUST SOUTHWEST OF NATCHEZ. THE STORMS CONTINUE TO MOVE NORTH AT 20 MILES AN HOUR. THE WASHINGTON COUNTY SHERIFF OFFICE REPORTED SMALL HAIL ALONG WITH TORRENTIAL DOWNPOURS SOUTH/SOUTHEAST OF GREENVILLE JUST BEFORE 530 PM CDT. BESIDES THE HEAVY RAINFALL AND SOME HAIL...THE STORMS COULD ALSO PRODUCE DANGEROUS LIGHTNING AND WIND GUSTS NEAR 35 MILES AN HOUR. THE STORMS IN THE SOUTHERN PART OF THE DELTA HAVE SHOWN A TENDENCY TO WEAKEN DURING THE PA<ST 30 MINUTES. MEANWHILE THE STORMS NEAR VICKSBURG AND NATCHEZ HAVE GAINED STRENGTH.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 7:27 PM CDT | Tornado Warning | JAN | Yazoo | 33 min |
| Oct 26, 8:06 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 39 min |
Nearby
Flash Flood Warnings in Mississippi, 1991Every flash flood warning in 1991
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.