Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 55, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Apr 20, 2003, 3:10 PM CDT for Arkansas County, Arkansas. It was in force for 25 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
- Apr 20, 2003, 3:10 PM CDT (20:10 UTC)
- Expired
- Apr 20, 2003, 3:35 PM CDT
- In force
- 25 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
County Arkansas County, AR
The radar
The Little Rock radar (KLZK), 101 km from the middle of the area, began a volume at 20:14 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
Little Rock, AR (KLZK), launched 12:00Z, 8.2 hours before the alert went out and 144 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
- 339 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
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 Apr 20, 2:35 PM CDT, 35 minutes earlier.
Area forecast discussion, Apr 20, 2:35 PM CDT, 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 235 PM CDT SUN APR 20 2003 .SHORT TERM...TONIGHT THROUGH WEDNESDAY... PRIMARY SHORT TERM CONCERN FOR TONIGHT IS THE FRONT...FOLLOWED BY TEMPERATURES...AND SPEED OF MOISTURE RETURN ON WEDNESDAY. HAND ANALYSIS PLACED COLD FRONT ROUGHLY FROM JBR TO SGT TO ELD AT 18Z. WILL LEAVE SLIGHT CHANCE TSRA FOR THIS EVENING FOR THE SOUTHEASTERN ZONES TO ACCOUNT FOR SLOW MOVEMENT OF THE FRONT. SYSTEM WILL MOVE OUT OF THE FORECAST AREA TONIGHT. MAY BE SOME WRAPAROUND CLOUDS OVER THE NORTH ASSOCIATED WITH A WEAKER BOUNDARY...BUT NOTHING TO BE TOO CONCERNED WITH. COOLER AIR WILL FILTER IN BEHIND THE FRONT...AND COOLER TEMPS ARE IN STORE FOR THE NEXT DAY OR TWO. AREA WILL REMAIN UNDER A NWRLY/NRLY FLOW FOR SEVERAL DAYS. THIS SHOULD QUELL ANY 80 DEGREE READINGS FOR A WHILE. HIGH PRESSURE WILL EASE ON BY TUESDAY NIGHT. FRONTAL BOUNDARY PROGGED TO STALL OUT CLOSE TO THE GULF COAST...WEAKEN...AND THE REMNANTS MOVE BACK TO THE NORTH BEGINNING LATE TUESDAY. AS THE HIGH MOVES EAST...SOUTHEASTERLY FLOW WILL SET UP OUT AHEAD OF THE APPROACHING BOUNDARY. SUFFICIENT MOISTURE WILL NOT BE OVER THE FORECAST AREA UNTIL AT LEAST WEDNESDAY...MAINLY OVER WESTERN ARKANSAS. LIKE THE MAV AND MET NUMBERS THIS ROUND...AND STAYED FAIRLY CLOSE TO THEM. FWC SEEMS A BIT TOO WARM. 57. .LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY... WARM FRONT MOVES NORTH WEDNESDAY NIGHT...AS LOW PRESSURE MOVES EAST IN THE PLAINS. AM HAVING A HARD TIME BUYING INTO THE SOUTHERLY TRACK OF THE GFS...SO WILL USE A BLEND OF THE PREVIOUS RUN...ALONG WITH THE CANADIAN AND EUROPEAN MODELS. AFOREMENTIONED MODELS SHOW SURFACE LOW TRACKING FARTHER NORTH...WITH PRECIPITATION MOVING OUT OF THE STATE FRIDAY. CLEARING WILL TAKE PLACE FRIDAY THROUGH SUNDAY...WITH A GRADUAL WARMING OF TEMPERATURES. 218. .COORDINATION... THANKS TO WFO SHREVEPORT FOR COORDINATION THIS AFTERNOON. FCSTID = 57 HRO 45 67 45 71 / 10 5 5 10 LIT 51 73 48 74 / 10 5 5 10 HOT 51 74 48 75 / 10 5 5 10 PBF 52 75 50 76 / 10 5 5 10 .LZK...NONE. 57/218
Hazardous weather outlook, Apr 20, 2:00 PM CDT, 1 hour 10 minutes before
ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-211000- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 200 PM CDT SUN APR 20 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT A COLD FRONT EXTENDING THROUGH SOUTHEASTERN ARKANSAS SUNDAY AFTERNOON WILL MOVE SOUTHEASTWARD OUT OF THE STATE TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG AND AHEAD OF THE FRONT SUNDAY AFTERNOON AND EVENING. HOWEVER...THE CHANCES FOR ANY SEVERE WEATHER WILL BE LOW. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE NEXT STORM SYSTEM WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO THE STATE WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. 22
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 9:33 PM CDT | Severe Thunderstorm Warning | LZK | Desha, Lincoln | 27 min |
| Apr 19, 10:24 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas | 31 min |
| Apr 19, 10:32 PM CDT | Severe Thunderstorm Warning | LZK | Johnson | 58 min |
| Apr 19, 10:42 PM CDT | Severe Thunderstorm Warning | LZK | Johnson | 48 min |
| Apr 19, 10:59 PM CDT | Severe Thunderstorm Warning | LZK | Monroe | 31 min |
| Apr 20, 1:08 AM CDT | Severe Thunderstorm Warning | LZK | Baxter | 27 min |
| Apr 20, 1:21 AM CDT | Severe Thunderstorm Warning | LZK | Fulton | 39 min |
| Apr 20, 1:52 AM CDT | Severe Thunderstorm Warning | LZK | Searcy | 28 min |
| Apr 20, 5:46 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas | 29 min |
| Apr 20, 6:06 PM CDT | Severe Thunderstorm Warning | LZK | Monroe | 29 min |
| Apr 20, 6:21 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas | 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.