Alert archive / Tennessee / Special Weather Statements in 2017
Special Weather Statement, NWS Memphis, TN
NWS Memphis, TN issued this special weather statement at Apr 17, 2017, 3:01 PM CDT for Hardeman County, Hardin County, McNairy County, Tennessee. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2017, 3:01 PM CDT (20:01 UTC)
- Expired
- Apr 17, 2017, 4:00 PM CDT
- In force
- 59 min
- Issued by
- NWS Memphis, TN
Counties Hardeman County, TN, Hardin County, TN, McNairy County, TN
The radar
The Memphis radar (KNQA), 136 km from the middle of the area, began a volume at 20:05 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 (KBYH), launched 12:00Z, 8.0 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
- 604 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.8
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Memphis, TN wrote its last area forecast discussion before this special weather statement went out at Apr 17, 12:19 PM CDT, 2 hours 42 minutes earlier.
Area forecast discussion, Apr 17, 12:19 PM CDT, 2 hours 42 minutes before
Area Forecast Discussion National Weather Service Memphis TN 1219 PM CDT Mon Apr 17 2017 .DISCUSSION... Updated for 18Z Aviation Discussion. && .PREV DISCUSSION... /issued 1050 AM CDT Mon Apr 17 2017/ DISCUSSION... Remnants of MCS that developed over NE Oklahoma and NW Arkansas lat night is pushing into the Delta region this morning. Meanwhile a weak stationary front is draped across the area and deeper moisture associated with a weak mid level trough is moving into the region. Expect showers and thunderstorms to continue to develop across the Mid-South this afternoon. SBCAPES range from 1000-1500 j/kg east of the MS River and there is 30 kts of 0-6km shear north of I-40. A few strong storms are possible this afternoon mainly along and east of the MS River with gusty winds and small hail. SJM && .PREV DISCUSSION... /issued 349 AM CDT Mon Apr 17 2017/ Guidance continues to over-do rainfall coverage in the near term...next weekend is looking interesting. Showers and thunderstorms are moving into West Arkansas and will eventually make into the Midsouth but currently conditions are dry across the region. Temperatures are in the middle 60s. Skies are mostly cloudy with dew points in the low to middle 60s so temperatures are not likely to fall more than another degree or so before sunrise. There may be a few showers around for the morning commute...but the widespread rain and thunderstorms probably won't arrive until around 11 am or so in East Arkansas...and noon to 1 PM along the Mississippi River. We should finally get some rainfall across the Midsouth this afternoon after guidance has been teasing us for a day or so. Rainfall totals this afternoon and overnight of around one half of an inch are expected. Conditions do not look supportive of severe thunderstorms. We will remain under zonal flow through most of the work week. A weak cold front will sink into Northeast Arkansas and North Tennessee as a series of mid level disturbances shift across the same region. A couple of rounds of rain and thunderstorms are expected...one today and another Thursday...but neither look overly organized. Temperatures will remain above normal through Thursday...near to slightly below normal Friday. Weak ridging will take place Friday in response to a deepening trough over the Southern Plains. Guidance is in poor agreement with timing, but most models bring a fairly potent system across the Midsouth Saturday afternoon or Saturday night. Its still a long way out so confidence is low...but it has been featured in guidance for several runs now, so I will introduce strong to severe wording to the HWO. 30 && .AVIATION... 18Z TAFs Scattered showers and thunderstorms during the first half of the TAF cycle with conditions varying mostly between VFR and MVFR...though brief IFR VSBY in the heaviest downpours is possible. During the second half of the period...IFR stratus with patchy drizzle is favored. Can't rule out the potential for LIFR...but confidence is low at this time. Winds will be either light from the south or east as a weak cold front drops south. Winds may gust up to 20 to 25 kts in storms. JAB && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
Hazardous weather outlook, Apr 17, 2:16 PM CDT, 45 minutes before
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Special weather statement, Apr 17, 1:38 PM CDT, 1 hour 23 minutes before
Special Weather Statement
National Weather Service Memphis TN
138 PM CDT MON APR 17 2017
TNZ053-090-171930-
Hardeman TN-Chester TN-
138 PM CDT MON APR 17 2017
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 230 PM CDT
FOR...
Northeastern Hardeman County in western Tennessee...
Southwestern Chester County in western Tennessee...
At 138 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Bolivar, moving
east at 20 mph.
Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.
People in northeastern Hardeman and southwestern Chester Counties
should monitor this storm closely.
LAT...LON 3537 8861 3536 8864 3534 8867 3530 8866
3531 8869 3526 8871 3525 8872 3525 8878
3513 8879 3513 8904 3543 8903 3543 8857
TIME...MOT...LOC 1838Z 275DEG 17KT 3534 8895Special weather statement, Apr 17, 1:42 PM CDT, 1 hour 19 minutes before
Special Weather Statement National Weather Service Memphis TN 142 PM CDT MON APR 17 2017 TNZ003-004-020-021-171930- Carroll TN-Weakley TN-Henry TN-Gibson TN- 142 PM CDT MON APR 17 2017 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 230 PM CDT FOR... Carroll County in western Tennessee... Southeastern Weakley County in western Tennessee... Western Henry County in western Tennessee... Southeastern Gibson County in western Tennessee... At 142 PM CDT...a strong thunderstorm producing pea size hail or larger and winds at least 40 mph was located over Gleason, or 7 miles northwest of McKenzie, moving east at 20 mph. Very heavy rain along with continuous cloud to ground lightning are also possible with this thunderstorm. People in Carroll...southeastern Weakley...western Henry and southeastern Gibson Counties should monitor this storm closely. LAT...LON 3596 8822 3581 8887 3639 8870 3644 8821 TIME...MOT...LOC 1842Z 275DEG 17KT 3619 8864
Special weather statement, Apr 17, 2:02 PM CDT, 59 minutes before
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</html>Special weather statement, Apr 17, 2:39 PM CDT, 22 minutes before
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 11:37 AM CDT | Special Weather Statement | MEG | Dyer | 23 min |
| Apr 17, 11:59 AM CDT | Special Weather Statement | MEG | Dyer | 46 min |
| Apr 17, 12:00 PM CDT | Severe Thunderstorm Warning | MEG | Dyer | 27 min |
| Apr 17, 1:38 PM CDT | Special Weather Statement | MEG | Chester, Hardeman | 52 min |
| Apr 17, 1:42 PM CDT | Special Weather Statement | MEG | Carroll, Henry, Weakley | 48 min |
| Apr 17, 1:56 PM CDT | Severe Thunderstorm Warning | MEG | Carroll | 34 min |
| Apr 17, 2:24 PM CDT | Special Weather Statement | MEG | Benton | 66 min |
| Apr 17, 12:33 PM CDT | Special Weather Statement | MEG | DeSoto, Quitman, Tate | 42 min |
| Apr 17, 12:59 PM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Quitman, Tallahatchie | 31 min |
| Apr 17, 1:11 PM CDT | Flash Flood Warning | MEG | Coahoma, Quitman | 2 hr |
| Apr 17, 1:17 PM CDT | Special Weather Statement | MEG | Panola, Quitman, Tate | 43 min |
| Apr 17, 2:02 PM CDT | Special Weather Statement | MEG | Panola, Quitman | 43 min |
| Apr 17, 2:39 PM CDT | Special Weather Statement | MEG | Yalobusha | 51 min |
| Apr 17, 3:19 PM CDT | Special Weather Statement | MEG | DeSoto | 56 min |
Nearby
Special Weather Statements in Tennessee, 2017Every special weather statement in 2017
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.