Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 49, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at May 27, 1990, 11:47 AM CDT for Harrison County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 1990, 11:47 AM CDT (16:47 UTC)
- Expired
- May 27, 1990, 2:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Harrison County, TX
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
Longview/Gregg, TX (KGGG), launched 12:00Z, 4.8 hours before the alert went out and 31 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
- 2613 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 561 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 6.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 271647 FFWSHV TXC067-203-315-271945- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 1147 AM CDT SUN MAY 27 1990 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS.. IN NORTHEAST TEXAS ...SOUTHEASTERN CASS COUNTY...HARRISON COUNTY...MARION COUNTY AT 1142 AM CDT WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS..SOME PRODUCING VERY HEAVY RAINFALL.. OVER NORTHEAST TEXAS..SOUTHWEST ARKANSAS..AND EXTREME NORTHWEST LOUISIANA. THE LEADING EDGE OF THE RAINFALL AREA EXTENDED FROM NEAR MAGNOLIA ARKANSAS SOUTHWEST TO NEAR COTTON VALLEY..BENTON.. AND DIXIE LOUISIANA AND INTO EAST TEXAS TO NEAR LONGVIEW AND TYLER. THE AREA WAS ABOUT 75 MILES WIDE. THE FLOOD PRODUCING RAINFALL WAS INDICATED FROM NEAR CADDO LAKE ALONG THE LOUISIANA/TEXAS STATE LINE SOUTHWEST TO NEAR MARSHALL TEXAS AND EXTENDED TO THE NORTHWEST TO NEAR ATLANTA..LINDEN..JEFFERSON..AND LAKE O THE PINES TEXAS. THE SHOWERS AND THUNERSTORMS HAVE BEEN MOVING TO THE SOUTHEAST AT ABOUT 30 MPH AND HAVE BEEN PRODUCING RAINFALL FROM NEAR ONE TO OVER THREE INCHES IN A SHORT PERIOD OF TIME..CAUSING EXCESSIVE WATER RUNOFF AND FLOODING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
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 27, 5:52 AM CDT, 5 hours 55 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-271200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 540 AM CDT SUN MAY 27 1990 ...SEVERE THUNDERSTORM WATCHES REMAINED IN EFFECT FOR PARTS OF SOUTH ARKANSAS..NORTHEAST TEXAS AND NORTH LOUISIANA ALONG AND AHEAD OF LINE OF THUNDERSTORMS THAT EXTENDED FROM NEAR MONTICELLO ARKANSAS TO NORTH OF EL DORADO ARKANSAS TO PLAIN DEALING LOUISIANA TO NEAR JEFFERSON TEXAS... AT 535 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A 70 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM NEAR PINE BLUFF ARKANSAS ACROSS CAMDEN ARKANSAS TO NEAR JEFFERSON TEXAS. MOVEMENT WAS EAST SOUTHEAST NEAR 35 MILES AN HOUR. WITHIN THE AREA HEAVY RAINS..PEA SIZE HAIL..GUSTY WINDS OF 35 TO 45 MPH AND FREQUENT LIGHTNING WERE NOTED FROM COTTON VALLEY LOUISIANA TO SPRINGHILL LOUISIANA AND FROM ELDORADO ARKANSAS TO WARREN ARKANSAS. IN THE WAKE OF THIS SYSTEM...SHOWERS AND THUNDERSTORMS WERE REDEVELOPING FROM NEAR KIRBY ARKANSAS TO NEAR BETHEL OKLAHOMA. ALSO...ISOLATED THUNDERSTORMS WERE ALONG THE RED RIVER SOUTH OF HAWORTH OKLAHOMA AND NORTHWEST OF SULPHUR SPRINGS TEXAS. SOME OF THESE STORMS WERE PRODUCING GUSTY WINDS AND HEAVY RAINS. TO THE SOUTH...A 50 MILE WIDE AREA OF DIMINISHING SHOWERS AND THUNDERSTORMS WAS NOTED FROM NEAR WINNFIELD LOUISIANA ACROSS TOLEDO BEND RESERVOIR TO NEAR NACOGDOCHES TEXAS. MOVEMENT WAS SOUTHEAST NEAR 20 MILES AN HOUR. ALONG WITH THE THREAT FOR HIGH WINDS AND HAIL...HEAVY RAINS ARE LIKELY THROUGH TONIGHT OVER PARTS OF THE AREA.
Special weather statement, May 27, 6:48 AM CDT, 4 hours 59 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-271300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 645 AM CDT SUN MAY 27 1990 ...SEVERE THUNDERSTORM WATCHES REMAINED IN EFFECT FOR PARTS OF SOUTH ARKANSAS AND NORTH LOUISIANA..BUT THE WATCH FOR NORTHEAST TEXAS HAS BEEN CANCELLED... AT 640 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A 60 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM NEAR MANSFIELD LOUISIANA ACROSS MINDEN LOUISIANA AND EL DORADO ARKANSAS TO NEAR SHERIDAN ARKANSAS. MOVEMENT WAS EAST SOUTHEAST NEAR 35 MILES AN HOUR. WITHIN THE AREA HEAVY RAINS..PEA SIZE HAIL..GUSTY WINDS OF 35 TO 45 MPH AND FREQUENT LIGHTNING WERE NOTED FROM EAST OF HOMER LOUISIANA TO SOUTHWEST OF ELDORADO ARKANSAS. . IN THE WAKE OF THIS SYSTEM...SHOWERS AND THUNDERSTORMS WERE REDEVELOPING IN A 30 MILE WIDE AREA FROM NEAR ANTOINE ARKANSAS ACROSS LAKE GREESON AND SMITHVILLE OKLAHOMA TO NEAR MCALESTER OKLAHOMA. WITHIN THIS AREA A THUNDERSTORM THAT WAS PRODUCING GUSTY WINDS...HEAVY RAINS AND FREQUENT LIGHTNING WAS NOTED SOUTH OF SMITHVILLE OKLAHOMA. MOVEMENT WAS EAST SOUTHEAST NEAR 35 MILES AN HOUR. LOW AREA FLOODING MAY DEVELOP IN THE AREAS THAT RECEIVED ONE TO TWO INCH TOTALS DURING THE WEE HOURS AND THAT THUNDERSTORMS ONCE AGAIN AFFECT THIS MORNING. ANOTHER AREA ABOUT 50 MILES WIDE OF SHOWERS AND THUNDERSHOWERS WAS WAS NOTED FROM NEAR GEORGETOWN LOUISIANA ACROSS BASTROP LOUISIANA TO NEAR LAKE VILLAGE ARKANSAS. MOVEMENT WAS EAST NEAR 20 MILES AN HOUR. ALSO ISOLATED SHOWERS LINGERED EAST OF LUFKIN TEXAS. ALONG WITH THE THREAT FOR HIGH WINDS AND HAIL...HEAVY RAINS ARE LIKELY THROUGHE TONIGHT OVER PARTS OF THE AREA.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 2:54 AM CDT | Severe Thunderstorm Warning | SHV | Bowie | 66 min |
| May 27, 11:47 AM CDT | Flash Flood Warning | SHV | Cass, Marion | 3 hr |
| May 27, 12:50 PM CDT | Severe Thunderstorm Warning | SHV | Panola, Shelby | 85 min |
| May 27, 12:50 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Rusk | 85 min |
Nearby
Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990
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.