Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 445, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Aug 18, 2003, 5:10 PM CDT for Searcy County, Arkansas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 18, 2003, 5:10 PM CDT (22:10 UTC)
- Expired
- Aug 18, 2003, 5:55 PM CDT
- In force
- 45 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
County Searcy County, AR
The radar
The Little Rock radar (KLZK), 126 km from the middle of the area, began a volume at 22:12 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 148 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
- 863 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1899 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 3:07 PM CDT, 2 hours 3 minutes earlier.
Area forecast discussion, Aug 18, 3:07 PM CDT, 2 hours 3 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 307 PM CDT MON AUG 18 2003 .SHORT TERM...TONIGHT THROUGH THURSDAY... BIGGEST CHALLENGES IN THE SHORT TERM LIE WITH TEMPERATURES AND ANTICIPATED HEAT INDEX VALUES. UPPER RIDGE WILL REMAIN ANCHORED OVER THE MID AND UPPER MISSISSIPPI VALLEY...KEEPING WARM SOUTHERLY FLOW OVER US. FRONTAL BOUNDARY CURRENTLY NEAR MO BOOTHEEL/WRN TENNESSEE WILL WOBBLE AROUND FOR A DAY OR SO BEFORE IT WASHES OUT OVER THE OHIO VALLEY...HAVING MINIMAL INFLUENCE ON OUR SENSIBLE WEATHER. WILL CONTINUE A CHANCE OF AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS IN THE SHORT TERM...AS BOUNDARY LAYER REMAINS RATHER MOIST. ONCE DAYTIME HEATING KICKS IN...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL BEGIN TO DEVELOP...DISSIPATING AROUND OR SHORTLY AFTER SUNSET. STRONG UPPER TROUGH WILL MOVE DOWN OUT OF THE ROCKIES BY MIDWEEK. THIS WILL GIVE THE RIDGE A NUDGE AWAY FROM THE AREA...BRINGING MORE CLOUDS...SLIGHTLY COOLER TEMPERATURES...AND A LITTLE BETTER CHANCE FOR RAIN. GUIDANCE CONTINUES TO BE REASONABLE IN MOST AREAS...SO A GENERAL BLEND IS IN ORDER. MET IS RUNNING A LITTLE HOT IN SOME PLACES...SO TENDED TO GO A LITTLE BELOW THESE NUMBERS. HEAT INDEX VALUES WILL CONTINUE TO RANGE FROM 100 TO 105 FOR TUESDAY OVER THE NORTH...WHILE VALUES OVER THE SOUTH WILL RANGE FROM 105 TO 115. FOR THIS REASON... WILL CONTINUE A HEAT ADVISORY THROUGH TUESDAY FOR CENTRAL AND SOUTHERN ARKANSAS. 57. .LONG TERM...THURSDAY NIGHT THROUGH MONDAY... A COLD FRONT IN THE NORTHERN PLAINS WILL SLIDE SOUTHWARD AND MOVE THROUGH ARKANSAS FRIDAY AND FRIDAY NIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS IS EXPECTED FRIDAY AS THE FRONT MOVES SOUTH. THE PRECIPITATION WILL DISSIPATE OVERNIGHT FRIDAY NIGHT AS THE FRONT MOVES OUT OF THE STATE AND STALLS ACROSS MISSISSIPPI. HIGH PRESSURE WILL MOVE INTO THE AREA AT THE SURFACE AND DRY THE ATMOSPHERE OUT A BIT. LOWER DEW POINTS AND SLIGHTLY COOLER TEMPERATURES ARE EXPECTED FOR THE WEEKEND. THE STALLED FRONT WILL THEN MOVE BACK TO THE NORTH LATE MONDAY BRINGING ANOTHER SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TO THE AREA BY MONDAY EVENING...ESPECIALLY THE SOUTHEAST. 51. FCSTID = 57/51 HRO 73 95 73 94 / 20 20 20 20 LIT 75 97 75 96 / 20 20 20 20 HOT 76 98 75 97 / 20 20 20 20 PBF 76 98 74 96 / 20 20 20 20 .LZK... AR...HEAT ADVISORY FOR TONIGHT AND TUESDAY FOR ZONES ARZ021>022... ARZ030>034...ARZ037>047...ARZ052>057...ARZ062>069.
Hazardous weather outlook, Aug 18, 4:30 PM CDT, 40 minutes before
ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-191000- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 430 PM CDT MON AUG 18 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT HOT TEMPERATURES WILL REMAIN ACROSS ARKANSAS THROUGH THE AFTERNOON...WITH HEAT INDICES BETWEEN 105 AND 110 DEGREES. A HEAT ADVISORY REMAINS IN EFFECT THIS AFTERNOON FOR THE CENTRAL AND SOUTHERN TWO THIRDS OF THE STATE. THIS ABUNDANCE OF HEAT AND HUMIDITY IS INTERACTING WITH A BOUNDARY OVER THE STATE. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING...MAINLY OVER PORTIONS IN THE NORTHWESTERN HALF OF THE STATE. ISOLATED STORMS MAY REACH SEVERE LIMITS. THE MAIN CONCERNS WITH THESE STORMS ARE HEAVY RAIN...GUSTY WINDS OVER 30 MPH...AND ISOLATED LARGE HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE WEATHER PATTERN WILL NOT CHANGE MUCH THROUGH THE MIDDLE OF THE UPCOMING WEEK. HOT AND MOSTLY DRY WEATHER IS IN THE FORECAST. HEAT INDEX VALUES WILL RANGE FROM 105 TO 110 DEGREES IN CENTRAL AND SOUTHERN ARKANSAS ON TUESDAY WITH A HEAT ADVISORY REMAINING IN EFFECT. THUNDERSTORMS WILL REMAIN ISOLATED THROUGH WEDNESDAY. BY THURSDAY OR FRIDAY...A COLD FRONT WILL ARRIVE FROM THE PLAINS. PRECIPITATION CHANCES WILL INCREASE A BIT...WITH SLIGHTLY COOLER WEATHER TO END THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE POSSIBLE THIS AFTERNOON AND EVENING IN PORTIONS OF ARKANSAS...MAINLY IN THE NORTHWESTERN HALF. 58
In the hours before
Local storm report, Aug 18, 2:50 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
250 PM CDT MON AUG 18 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0240 PM LITTLE ROCK AR WIND DAMAGE
08/18/03 PULASKI TREES AND POWER LINES DOWN
IN THE AREA OF W. MARKHAM
AND VAN BUREN. REPORTED BY
LITTLE ROCK CENTRAL
COMMUNICATIONS. ALSO PUBLIC
REPORTED LARGE LIMBS DOWN
IN THE HEIGHTS.
0240 PM LITTLE ROCK AR .75 INCH HAIL
08/18/03 PULASKI REPORTED BY PUBLIC IN THE
HEIGHTS.
28Local storm report, Aug 18, 3:14 PM CDT, 1 hour 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
314 PM CDT MON AUG 18 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0230 PM GAMALIEL AR .75 INCH HAIL
08/18/03 BAXTER REPORTED BY
POST OFFICE.
28The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 2:08 PM CDT | Severe Thunderstorm Warning | LZK | Pulaski | 42 min |
| Aug 18, 2:22 PM CDT | Severe Thunderstorm Warning | LZK | Baxter | 28 min |
| Aug 18, 2:50 PM CDT | Severe Thunderstorm Warning | LZK | Baxter | 60 min |
| Aug 18, 5:41 PM CDT | Severe Thunderstorm Warning | LZK | Van Buren | 29 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2003Every severe thunderstorm warning in 2003
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; radar from the NEXRAD Level II archive.