Alert archive / Mississippi / Flash Flood Warnings in 1986
Flash Flood Warning 1, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at May 30, 1986, 9:20 PM CDT for Jones County, Mississippi. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 30, 1986, 9:20 PM CDT (02:20 UTC)
- Expired
- May 30, 1986, 11:20 PM CDT
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Jones County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 2.3 hours before the alert went out and 116 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
- 588 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1395 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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, May 30, 5:29 PM CDT, 3 hours 51 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 525 PM CDT FRI MAY 30 1986 ...A SLOW MOVING LINE OF THUNDERSTORMS OVER SOUTHERN MISSISSIPPI... AT 525 PM...A NEARLY SOLID LINE OF STRONG THUNDERSTORMS WAS INDICATED OVER SOUTH MISSISSIPPI FROM 50 MILES SOUTHWEST OF MCCOMB TO 5 MILES SOUTH OF HATTIESBURG. THE LINE HAS BEEN SLOWLY DRIFTING TO THE NORTH OVER THE PAST HOUR. THE SLOW MOVEMENT OF THE LINE AND THE INTENSITY OF THE STORMS WILL RESULT IN PERIODS OF HEAVY RAIN OVER THE NEXT COUPLE OF HOURS. SOME LOCALIZED FLOODING IN LOW AREAS CAN BE EXPECTED. IN ADDITION THE STORMS ARE LIKELY PRODUCING FREQUENT LIGHTNING AND GUSTY WINDS. ELSEWHERE...A COUPLE OF ISOLATED HEAVY THUNDERSTORMS WERE OCCURRING OVER EAST CENTRAL MISSISSIPPI...MAINLY 5 TO 15 MILES SOUTHEAST OF MERIDIAN. AN AREA OF RAIN AND SCATTERED THUNDERSTORMS ALSO EXTENDED FROM SOUTHEAST LOUISIANA INTO SOUTHWEST MISSISSIPPI. < LITqTLE MOVEMENT WAS NOTED WITH MOST OF THE THUNDERSTORMS...WHILE THE LINE SOUTH OF MCCOMB AND HATTIESBURG WAS DRIFTING TO THE NORTH.
Special weather statement, May 30, 6:45 PM CDT, 2 hours 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 643 PM CDT FRI MAY 30 1986 AT 640 PM CDT A VERY STRONG THUNDERSTORM WAS LOCATED OVER MERIDIAN MISSISSIPPI. THE THUNDERSTORM WAS MOVING VERY LITTLE AND OVER AN INCH OF RAIN HAS FALLEN AT THE MERIDIAN AIRPORT DURING THE PAST HOUR. DUE TO THE SLOW MOVEMENT OF THE THUNDERSTORM AND THE VERY HEAVY RAINS ASSOCIATED WITH IT STREET AND SMALL STREAM FLOODING IS VERY LIKELY IN THE MERIDIAN MISSISSIPPI AREA FOR THE NEXT TWO HOURS. PERSONS DRIVING OR LIVING IN LOW AREAS PRONE TO FLOODING SHOULD BE VERY ALERT FOR THE NEXT TWO HOURS FOR FLOODING. <<
Special weather statement, May 30, 8:37 PM CDT, 43 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 835 PM CDT FRI MAY 30 1986 AT 830 PM CDT..A CLUSTER OF VERY HEAVY THUNDERSTORMS EXTENDED ACROSS CENTRAL MISSISSIPPI FROM WESTERN HINDS COUNTY EASTWARD INTO SMITH COUNTY. THE THUNDERSTORMS ON THE LEADING EDGE OF THIS CLUSTER WERE JUST MOVING INTO THE JACKSON METRO AREA AS THEY DRIFTED NORTH AT AROUND 10 MPH. THE SLOW MOVEMENT OF THE THUNDERSTORMS WILL LIKELY RESULT IN PERIODS OF HEAVY RAIN OVER THE NEXT HOUR OR TWO. SOME LOCALIZED FLOODING IN LOW AREAS CAN BE EXPECTED..INCLUDING STREET AND URBAN FLOODING IN SOME OF THE MORE FLOOD PRONE AREAS OF JACKSON. GUSTY WINDS AND FREQUENT LIGHTNING WILL ALSO ACCOMPANY" THESE STORMS AS THEY CONTINUE DRIFTING NORTH. < LITTLE MOVEMENT WAS NOTED WITH MOST OF THE THUNDERSTORMS...WHILE THE LINE SOUTH OF MCCOMB AND HATTIESBURG WAS DRIFTING TO THE NORTH.
Special weather statement, May 30, 8:38 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 835 PM CDT FRI MAY 30 1986 AT 830 PM CDT..A CLUSTER OF VERY HEAVY THUNDERSTORMS EXTENDED ACROSS CENTRAL MISSISSIPPI FROM WESTERN HINDS COUNTY EASTWARD INTO SMITH COUNTY. THE THUNDERSTORMS ON THE LEADING EDGE OF THIS CLUSTER WERE JUST MOVING INTO THE JACKSON METRO AREA AS THEY DRIFTED NORTH AT AROUND 10 MPH. THE SLOW MOVEMENT OF THE THUNDERSTORMS WILL LIKELY RESULT IN PERIODS OF HEAVY RAIN OVER THE NEXT HOUR OR TWO. SOME LOCALIZED FLOODING IN LOW AREAS CAN BE EXPECTED..INCLUDING STREET AND URBAN FLOODING IN SOME OF THE MORE FLOOD PRONE AREAS OF JACKSON. GUSTY WINDS AND FREQUENT LIGHTNING WILL ALSO ACCOMPANY% THESE STORMS AS THEY CONTINUE DRIFTING NORTH.
Special weather statement, May 30, 8:58 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 900 PM CDT FRI MAY 30 1986 AT 855 PM CDT RADAR INDICATED A CLUSTER OF INTENSE THUNDERSTORMS WAS LOCATED IN SOUTHERN JASPER..SOUTHWEST CLARKE..NORTHERN JONES AND NORTHWEST WAYNE COUNTIES IN EAST CENTRAL MISSISSIPPPI. THE THUNDERSTORMS ARE MOVING VERY LITTLE AND VERY HEAVY RAINS ARE ASSOCIATED WITH THEM. SMALL STREAM AND STREET FLOODING IS VERY LIKELY IN THESE AREAS AND PE3RSONS DRIVING OR LIVING IN THESE AREAS SHOULD BE VERY ALERT FOR FLOODING FOR THE NEXT TWO HOURS. PEA SIZE HAIL..DANGEROUS LIGHTNING AND GUSTY WINDS WILL ALSO ACCOMPANY THESE THUNDERSTORMS. <<
Nearby
Flash Flood Warnings in Mississippi, 1986Every flash flood warning in 1986
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.